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Assembler release DWC_2.0 version 2.11
May 6, 2004 (c) Motorola (free ware)
0001 NAM SYS09BUG FOR XESS
0000 INCLUDE "opt_xes.txt"
0001 *
0002 ***************************************************
0003 * OPTION SWITCHES
0004 ***************************************************
0005 *
0006 *
0007 ** THE CONTROL PORT CAN ONLY BE ONE OF THESE
0008 ** NOTE THAT THE ACIA WILL ALWAYS BE PRESET
0009 ** FOR LOADING AND SAVING S1 RECORDS
0010 *
0011 *S3EOPT EQU $FF SPARTAN3E STARTER
0012 *S3SOPT EQU $FF SPARTAN3 STARTER FPGA VIDEO & PS2 KEYBOARD
0013 *B5XOPT EQU $FF B5-X300 FPGA VIDEO & PS2 KEYBOARD
0014 00FF XESOPT EQU $FF XESS XSA-3S100 & XST-3.0
0015 *ADSOPT EQU $FF ADS6809 & DG640 VIDEO DISPAY
0016 *SWTOPT EQU $FF SWTP ACIA SERIAL CONTROL PORT
0017 *
0002 END
0000 INCLUDE "sys09equ.txt"
0001 *
0002 ***************************************************
0003 * MEMORY MAP EQUATES *
0004 ***************************************************
0005 E000 MONIO EQU $E000 I/O SPACE
0006 IFD S3EOPT
0007 MONRAM EQU $7FC0
0008 ELSE
0009 DFC0 MONRAM EQU $DFC0 STACK SPACE
0010 ENDIF S3EOPT
0011 F800 MONROM EQU $F800 START OF ROM
0012 IFD S3SOPT
0013 MONEXT EQU $F000 START OF EXTENDED COMMANDS
0014 EXTCMD EQU $00 EXTENDED OFFSET
0015 ENDIF S3SOPT
0015 ENDIF S3SOPT
0016 IFD XESOPT
0017 F000 MONEXT EQU $F000 START OF EXTENDED COMMANDS
0018 0000 EXTCMD EQU $00 EXTENDED OFFSET
0019 ENDIF XESOPT
0020 ***************************************************
0021
0022 IFD S3EOPT
0023 *
0024 * DIGILENT SPARTAN 3E STARTER
0025 *
0026 ACIAOPT EQU $FF ACIA AT PORT 0
0027 PS2OPT EQU $FF PS2 KEYBOARD AT $E020
0028 VDUOPT EQU $FF VDU AT $E030
0029 TRAOPT EQU $FF PIA TRACE TIMER
0030 ENDIF S3EOPT
0030 ENDIF S3EOPT
0031 *
0032 IFD S3SOPT
0033 *
0034 * DIGILENT SPARTAN 3 STARTER
0035 *
0036 ACIAOPT EQU $FF ACIA AT PORT 0
0037 PS2OPT EQU $FF PS2 KEYBOARD AT $E020
0038 VDUOPT EQU $FF VDU AT $E030
0039 CF8OPT EQU $FF COMPACT FLASH AT $E040
0040 DATOPT EQU $FF DYNAMIC ADDRESS TRANSLATION
0041 EXTOPT EQU $FF EXTENDED COMMANDS
0042 ENDIF S3SOPT
0042 ENDIF S3SOPT
0043 *
0044 IFD B5XOPT
0045 *
0046 * BURCHED B5-X300
0047 *
0048 ACIAOPT EQU $FF ACIA AT PORT 0
0049 PS2OPT EQU $FF PS2 KEYBOARD AT $E020
0050 VDUOPT EQU $FF VDU AT $E030
0051 CF8OPT EQU $FF COMPACT FLASH AT $E040
0052 DATOPT EQU $FF DYNAMIC ADDRESS TRANSLATION
0053 ENDIF B5XOPT
0053 ENDIF B5XOPT
0054 *
0055 IFD XESOPT
0056 *
0057 * XESS XSA-3S1000 & XST-3.0
0058 *
0059 00FF ACIAOPT EQU $FF ACIA AT PORT 0
0060 00FF PS2OPT EQU $FF PS2 KEYBOARD AT $E020
0061 00FF VDUOPT EQU $FF VDU AT $E030
0062 00FF IDEOPT EQU $FF XESS IDE AT $E100
0063 00FF DATOPT EQU $FF DYNAMIC ADDRESS TRANSLATION
0064 00FF EXTOPT EQU $FF EXTENDED COMMANDS
0065 ENDIF XESOPT
0066 *
0067 IFD ADSOPT
0068 *
0069 * ACKERMAN DIGITAL ADS6809
0070 *
0071 DG640OPT EQU $FF DG640 VDU AT $E800
0072 *RTCOPT EQU $FF REAL TIME CLOCK
0073 PRTOPT EQU $FF PRINTER DRIVERS
0074 MFDCOPT EQU $FF MINIFLOPPY 5.25" DISK BOOT
0075 ENDIF ADSOPT
0075 ENDIF ADSOPT
0076 *
0077 IFD SWTOPT
0078 *
0079 * SOUTH WEST TECHNICAL PRODUCTS COMPUTER
0080 *
0081 ACIAOPT EQU $FF ACIA AT PORT 0
0082 DMAFOPT EQU $FF DMAF2 8" FLOPPY DISK BOOT
0083 MFDCOPT EQU $FF MINIFLOPPY 5.25" DISK BOOT
0084 DATOPT EQU $FF DYNAMIC ADDRESS TRANSLATION
0085 ENDIF
0085 ENDIF
0086 *
0087 IFD ACIAOPT
0088 *
0089 ***************************************************
0090 * SERIAL PORT *
0091 ***************************************************
0092 *
0093 ** ACIA SITS ON PORT 0
0094 *
0095 E000 ACIAS EQU MONIO+$00 CONTROL PORT
0096 *
0097 ENDIF ACIAOPT
0098 IFD MFDCOPT
0099 *
0100 ***************************************************
0101 * MINIFLOPPY DRIVE *
0102 ***************************************************
0103 *
0104 ** FLOPPY DISK CONTROLLER SITS ON PORT 1
0105 *
0106 DRVFDC EQU MONIO+$14
0107 CMDFDC EQU MONIO+$18
0108 SECFDC EQU MONIO+$1A
0109 DATFDC EQU MONIO+$1B
0110 ENDIF MFDCOPT
0110 ENDIF MFDCOPT
0111 IFD PS2OPT
0112 *
0113 ***************************************************
0114 * VDU8 PS/2 KEYBOARD PORT *
0115 ***************************************************
0116 *
0117 ** KEYBOARD SITS ON PORT 2
0118 *
0119 E020 PS2KBD EQU MONIO+$20 PS/2 KEYBOARD PORT
0120 ENDIF PS2OPT
0121 IFD VDUOPT
0122 *
0123 ***************************************************
0124 * VDU8 DISPLAY DRIVER EQUATES *
0125 ***************************************************
0126 *
0127 ** VDU8 DISPLAY SITS ON PORT 3
0128 *
0129 E030 VDU EQU MONIO+$30
0130 0000 VDUCHR EQU 0 CHARACTER REGISTER
0131 0001 VDUATT EQU 1 ATTRIBUTE REGISTER
0132 0002 VDUCOL EQU 2 CURSOR COLUMN
0133 0003 VDUROW EQU 3 CURSOR ROW
0134 0004 VDUOFF EQU 4 ROW OFFSET
0135 *
0136 0050 LINLEN EQU 80 LENGTH OF A LINE
0137 0019 NUMLIN EQU 25 NUMBER OF LINES
0138 ENDIF VDUOPT
0139 *
0140 IFD CF8OPT
0141 *
0142 ***************************************************
0143 * COMPACT FLASH EQUATES 8 BIT TRANSFER *
0144 ***************************************************
0145 *
0146 ** COMPACT FLASH SITS AT PORT 4
0147 *
0148 CF_BASE EQU MONIO+$40
0149 CF_DATA EQU CF_BASE+0
0150 CF_ERROR EQU CF_BASE+1 ; read error
0151 CF_FEATURE EQU CF_BASE+1 ; write feature
0152 CF_SECCNT EQU CF_BASE+2
0153 CF_SECNUM EQU CF_BASE+3
0154 CF_CYLLO EQU CF_BASE+4
0155 CF_CYLHI EQU CF_BASE+5
0156 CF_HEAD EQU CF_BASE+6
0157 CF_STATUS EQU CF_BASE+7 ; read status
0158 CF_COMAND EQU CF_BASE+7 ; write command
0159 *
0160 * Command Equates
0161 *
0162 CMDREAD EQU $20 ; Read Single sector
0163 CMDWRITE EQU $30 ; Write Single sector
0164 CMDFEATURE EQU $EF
0165 FEAT8BIT EQU $01 ; enable 8 bit transfers
0166 HEADLBA EQU $E0
0167 *
0168 * Status bit equates
0169 *
0170 BUSY EQU $80
0171 DRDY EQU $40
0172 DRQ EQU $08
0173 ERR EQU $01
0174 *
0175 ENDIF CF8OPT
0175 ENDIF CF8OPT
0176 *
0177 IFD IDEOPT
0178 *
0179 ***************************************************
0180 * COMPACT FLASH EQUATES 16 BIT TRANSFER (XESS) *
0181 ***************************************************
0182 *
0183 ** COMPACT FLASH SITS AT PORT 4
0184 *
0185 E100 CF_BASE EQU MONIO+$0100
0186 E100 CF_DATA EQU CF_BASE+0
0187 E102 CF_ERROR EQU CF_BASE+2 ; read error
0188 E102 CF_FEATURE EQU CF_BASE+2 ; write feature
0189 E104 CF_SECCNT EQU CF_BASE+4
0190 E106 CF_SECNUM EQU CF_BASE+6
0191 E108 CF_CYLLO EQU CF_BASE+8
0192 E10A CF_CYLHI EQU CF_BASE+10
0193 E10C CF_HEAD EQU CF_BASE+12
0194 E10E CF_STATUS EQU CF_BASE+14 ; read status
0195 E10E CF_COMAND EQU CF_BASE+14 ; write command
0196 E11E CF_AUX EQU CF_BASE+30
0197 *
0198 * Command Equates
0199 *
0200 0020 CMDREAD EQU $20 ; Read Single sector
0201 0030 CMDWRITE EQU $30 ; Write Single sector
0202 0006 AUXRESET EQU $06 ; Reset IDE
0203 0002 AUXRSTREL EQU $02 ; Reset release IRQ masked
0204 00E0 HEADLBA EQU $E0
0205 *
0206 * Status bit equates
0207 *
0208 0080 BUSY EQU $80
0209 0040 DRDY EQU $40
0210 0008 DRQ EQU $08
0211 0001 ERR EQU $01
0212 *
0213 ENDIF CF8OPT
0214 *
0215 IFD RTCOPT
0216 *
0217 **************************************************
0218 * MM58167A REAL TIME CLOCK MEMORY MAP:
0219 **************************************************
0220 *
0221 ** REAL TIME CLOCK SITS ON PORT 4 AND PORT 5
0222 *
0223 CLOCK EQU MONIO+$40 CLOCK BASE ADDRESS AND REGISTERS
0224 *
0225 * COUNTER AND COMPARITOR REGISTERS:
0226 *
0227 * Both the Clock Counter and Clock Comparitor
0228 * consist of 8 registers for holding the time.
0229 * The register offsets from the Counter and
0230 * Comparitor registers are listed above.
0231 *
0232 COUNTR EQU CLOCK+0
0233 CMPRAM EQU CLOCK+8 COMPARITOR REGISTERS
0234 *
0235 * CLOCK REGISTER OFFSETS:
0236 * These register offsets are used for the CLOCK
0237 * and comparitor ram CMPRAM.
0238 *
0239 S10000 EQU 0 TEN THOUNSANDTHS OF SECONDS
0240 S100 EQU 1 HUNDRETHS AND TENTHS OF SECONDS
0241 SECOND EQU 2
0242 MINUIT EQU 3
0243 HOUR EQU 4
0244 WKDAY EQU 5
0245 MTHDAY EQU 6
0246 MONTH EQU 7
0247 *
0248 * INTERRUPT OUTPUT REGISTERS:
0249 *
0250 * An interrupt output may be generated at the
0251 * following rates by setting the appropriate bit
0252 * in the Interrupt Control Register (CINTCR).
0253 * The Interrupt Status Register (CINTSR) must be
0254 * read to clear the interrupt and will return
0255 * the source of the interrupt.
0256 *
0257 * 1/Month Bit 7
0258 * 1/Week Bit 6
0259 * 1/Day Bit 5
0260 * 1/Hour Bit 4
0261 * 1/Minuite Bit 3
0262 * 1/Second Bit 2
0263 * 10/Second Bit 1
0264 * Comparitor Bit 0
0265 *
0266 CINTSR EQU CLOCK+16 INTERRUPT STATUS REGISTER
0267 CINTCR EQU CLOCK+17 INTERRUPT CONTROL REGISTER
0268 *
0269 * COUNTER AND RAM RESETS; GO COMMAND.
0270 *
0271 * The counter and comparitor may be reset
0272 * by writing $FF into CTRRES and CMPRES
0273 * respectivly.
0274 * A write to the Go command register (GOCMND)
0275 * will reset the 1/1000ths, 1/100ths and 1/10ths
0276 * of a second counter.
0277 *
0278 CTRRES EQU CLOCK+18 COUNTER RESET
0279 CMPRES EQU CLOCK+19 COMPARITOR RAM RESET
0280 GOCMND EQU CLOCK+21 GO COMMAND
0281 *
0282 * CLOCK STATUS REGISTER.
0283 *
0284 * The counter takes 61 usec. to rollover for
0285 * every 1KHz clock pulse. If the Status bit is
0286 * set after reading the counter, the counter
0287 * should be re-read to ensure the time is correct.
0288 *
0289 CLKSTA EQU CLOCK+20 STATUS BIT
0290 SBYINT EQU CLOCK+22 STANDBY INTERRUPT
0291 TSTMOD EQU CLOCK+31 TEST MODE REGISTER
0292 ENDIF RTCOPT
0292 ENDIF RTCOPT
0293 *
0294 IFD TRAOPT
0295 *
0296 **************************************************
0297 * PIA INTERRUPT TIMER
0298 **************************************************
0299 *
0300 ** PIA INTERRUPT TIMER SITS ON PORT 7
0301 *
0302 ** PIA TIMER FOR SINGLE STEP / TRACE
0303 *
0304 * TADATA = Output = Timer preset register
0305 * TACTRL - CA1 = input = rising edge = NMI
0306 * - CA2 = Output = Timer Reset (Active High)
0307 * TBDATA = Input = Timer read back register
0308 * TBCTRL - CB1 = input = rising edge = FIRQ
0309 * - CB2 = output = strobe low on write to TBDATA = Timer Preset
0310 *
0311 * CRA0 = 0 CA1 IRQ DISAB, CRA0 = 1 CA1 IRQ ENAB
0312 * CRA1 = 1 CA1 Rising edge IRQ
0313 * CRA2 = 0 TADATA = Data Direction, CRA2 = 1 TADATA = I/O Register
0314 * CRA3 = 0 CA2 = 0 output, CRA3 = 1 CA2 = 1
0315 * CRA4 = 1 ] CA2 = Set/Reset output
0316 * CRA5 = 1 ]
0317 * CRA6 = X CA2 Input Interrupt Flag
0318 * CRA7 = X CA1 Interrupt Flag
0319 *
0320 * CRB0 = 0 CB1 IRQ DISAB, CRB0 = 1 CA1 IRQ ENAB
0321 * CRB1 = 1 CB1 Rising edge IRQ
0322 * CRB2 = 0 TBDATA = Data Direction, CRB2 = 1 TBDATA = I/O Register
0323 * CRB3 = 0 CB2 = 0 output, CRB3 = 1 CB2 = 1
0324 * CRB4 = 1 ] CB2 = Set/Reset output
0325 * CRB5 = 1 ]
0326 * CRB6 = X CB2 Input Interrupt Flag
0327 * CRB7 = X CB1 Interrupt Flag
0328 *
0329 * DDRA = 0 TADATA = Input, DDRA = 1 TADATA = Output
0330 * DDRB = 0 TBDATA = Input, DDRB = 1 TBDATA = Output
0331 *
0332 TADATA EQU MONIO+$70 Timer preset port
0333 TACTRL EQU MONIO+$71
0334 TBDATA EQU MONIO+$72 Timer read back port
0335 TBCTRL EQU MONIO+$73
0336 *
0337 TRADEL EQU 13 Number of E cycles for RTI (May need to be fudged)
0338 *
0339 ENDIF TRAOPT
0339 ENDIF TRAOPT
0340 IFD ADSOPT
0341 *
0342 ***************************************************
0343 * SERIAL PORT FOR DG640 *
0344 ***************************************************
0345 *
0346 ** SET UP FOR ACKERMAN DIGITAL ADS6809
0347 ** THE ADS6809 S100 BOAD HAS AN ON BOARD ACIA
0348 *
0349 ACIAS EQU MONIO+$400 CONTROL PORT
0350 *
0351 ENDIF ADSOPT
0351 ENDIF ADSOPT
0352 IFD PRTOPT
0353 *
0354 ***************************************************
0355 * PRINTER INTERFACE *
0356 ***************************************************
0357 *
0358 PADATA EQU MONIO+$404
0359 PACTRL EQU MONIO+$405
0360 PBDATA EQU MONIO+$406
0361 PBCTRL EQU MONIO+$407
0362 *
0363 ** CB1 ACK. I/P
0364 ** CB2 STB. O/P
0365 ** PB0 - PB7 DATA 1 - 8 O/P
0366 ** PORT A BIT ASSIGNMENT
0367 *
0368 PBUSY EQU $80 I/P
0369 PEMPTY EQU $40 I/P
0370 SELECT EQU $20 I/P
0371 PERROR EQU $10 I/P
0372 PRESET EQU %00000100 O/P PA3 = 0
0373 AUTOFD EQU %00001000 O/P PA2 = 0
0374 DIRMSK EQU %00001100
0375 ENDIF PRTOPT
0375 ENDIF PRTOPT
0376 IFD DG640OPT
0377 *
0378 ***************************************************
0379 * DG640 MEMORY MAPPED DISPLAY DRIVER VARIABLES *
0380 ***************************************************
0381 *
0382 ** VIDEO DISPLAY DEFINITIONS
0383 *
0384 SCREEN EQU MONIO+$0800 START OF SCREEN MEMORY
0385 LINLEN EQU 64 LENGTH OF A LINE
0386 NUMLIN EQU 16 NUMBER OF LINES
0387 SCNLEN EQU $400 LENGTH OF SCREEN
0388 ENDIF DG640OPT
0388 ENDIF DG640OPT
0389 *
0390 IFD DMAFOPT
0391 *
0392 ***************************************************
0393 * DMAF2 8" DRIVE *
0394 ***************************************************
0395 *
0396 ADDREG EQU $F000 ADDRESS REGISTER
0397 CNTREG EQU $F002 COUNT REGISTER
0398 CCREG EQU $F010 CHANNEL CONTROL REGISTER
0399 PRIREG EQU $F014 DMA PRIORITY REGISTER
0400 AAAREG EQU $F015 ???
0401 BBBREG EQU $F016 ???
0402 COMREG EQU $F020 1791 COMMAND REGISTER
0403 SECREG EQU $F022 SECTOR REGISTER
0404 DRVREG EQU $F024 DRIVE SELECT LATCH
0405 CCCREG EQU $F040 ???
0406 ENDIF DMAFOPT
0406 ENDIF DMAFOPT
0407 IFD DATOPT
0408 **************************************************
0409 * DYNAMIC ADDRESS TRANSLATION REGISTERS *
0410 **************************************************
0411 *
0412 FFF0 IC11 EQU $FFF0 DAT RAM CHIP
0413 55AA TSTPAT EQU $55AA TEST PATTERN
0414 ENDIF DATOPT
0415 *
0003 END
0000 INCLUDE "sys09ide.txt"
0001 *
0002 ** SYS09BUG MONITOR EXTENSIONS
0003 *
0004 * FOR SYS09BUG ON THE XESS XSA-3S100 / XST-3.0
0005 * WITH I/O MAPPED AT $XE000
0006 * 16 BIT IDE MAPPED AT $E100
0007 * AND ROM MAPPED AT $XF000
0008 *
0009 *
sys09ide.txt page 2
0011 *
0012 ***************************************************
0013 * Serial PROM register
0014 ***************************************************
0015 *
0016 ** CONFIGURATION PROM DEFINITIONS
0017 *
0018 E0C0 PROMREG EQU MONIO+$C0
0019 0001 PCLKHI EQU $01 Toggle PROM Clock High
0020 0000 PCLKLO EQU $00 Toggle PROM Clock Low
0021 0002 PRSTHI EQU $02 Toggle PROM Reset High
0022 0000 PRSTLO EQU $00 Toggle PROM Reset Low
0023 AA55 SYNCHI EQU $AA55 Synch Pattern High Word
0024 FF00 SYNCLO EQU $FF00 Synch Pattern Low Word
0025 *
0026 *
0027 ***************************************************
0028 * START OF ROM *
0029 ***************************************************
0030 *
0031 F800 MONITV EQU MONROM+0 FDB MONITOR
0032 F802 NXTCMV EQU MONROM+2 FDB NEXTCMD
0033 F804 INCHV EQU MONROM+4 FDB INCH
0034 F806 INCHEV EQU MONROM+6 FDB INCHE
0035 F808 INCHKV EQU MONROM+8 FDB INCHEK
0036 F80A OUTCHV EQU MONROM+10 FDB OUTCH
0037 F80C PDATAV EQU MONROM+12 FDB PDATA
0038 F80E PCRLFV EQU MONROM+14 FDB PCRLF
0039 F810 PSTRGV EQU MONROM+16 FDB PSTRNG
0040 F812 LRAV EQU MONROM+18 FDB LRA
0041 *
0042 * Condition code flags
0043 *
0044 0001 CFLAG EQU $01 CARRY FLAG
0045 0002 VFLAG EQU $02 OVERFLOW FLAG
0046 0004 ZFLAG EQU $04 ZERO FLAG
0047 0008 NFLAG EQU $08 NEGATIVE FLAG
0048 0010 IFLAG EQU $10 IRQ MASK CC
0049 0020 HFLAG EQU $20 HALF CARRY
0050 0040 FFLAG EQU $40 FIRQ MASK CC
0051 0080 EFLAG EQU $80 ENTIRE FLAG
0052 *
0053 * Serial Port
0054 *
0055 E000 ACIAC1 EQU ACIAS
0056 E001 ACIAD1 EQU ACIAS+1
0057 04E2 DELCON EQU 1250 Delay (Processor clock in MHz * 50)
0058 *
0059 * XMODEM Control characters
0060 *
0061 0001 SOH EQU $01
0062 0004 EOT EQU $04
0063 0006 ACK EQU $06
0064 0015 NAK EQU $15
0065 0018 CAN EQU $18
0066 *
0067 * Some Disk Constants
0068 *
0069 0100 RMAXTRK EQU 256
0070 00FF RMAXSEC EQU 255
0071 FE01 RTOTSEC EQU RMAXTRK*RMAXSEC-RMAXSEC
0072 *
0073 * RAM SPACE
0074 *
0075 * PUT THIS DOWN THE BOTTOM OF MEMORY
0076 *
0077 0100 ORG $0100
0078 0100 DRVNUM RMB 1
0079 0101 TRACK RMB 1
0080 0102 SECTOR RMB 1
0081 0103 CHKSUM RMB 1
0082 0104 BLKNUM RMB 1 Xmodem block number
0083 0105 BYTCNT RMB 1 Xmodem byte count
0084 0106 XSTATE RMB 2 Xmodem State Vector
0085 0108 DELCNT RMB 3 $00,$00,$00 Xmodem Poll timer
0086 010B MAXTRK RMB 1
0087 010C MAXSEC RMB 1
0088 0200 ORG $0200
0089 *
0090 * SECTOR BUFFER
0091 *
0092 0200 BUFFER RMB 256
0093 *
0094 ****************************************
0095 *
0096 * START OF EXTENSION COMMANDS
0097 *
0098 ****************************************
0099 *
0100 F000 ORG MONEXT
0101 F000 F0 02 FDB NEXTEXT Jump to next extended command
0102 *
0103 ***** NEXTCMD *****
0104 *
0105 F002 AD 9F F8 06 NEXTEXT JSR [INCHEV] GET ONE CHAR. FROM TERMINAL
0106 F006 84 7F ANDA #$7F STRIP PARITY FROM CHAR.
0107 F008 1F 89 TFR A,B
0108 F00A 86 20 LDA #$20
0109 F00C AD 9F F8 0A JSR [OUTCHV] PRNT SPACE
0110 F010 C1 60 CMPB #$60
0111 F012 2F 02 BLE NXTEX0
0112 F014 C0 20 SUBB #$20
0113 *
0114 ***** DO TABLE LOOKUP *****
0115 * FOR COMMAND FUNCTIONS
0116 *
0117 F016 8E F0 2C NXTEX0 LDX #EXTTAB POINT TO JUMP TABLE
0118 F019 E1 80 NXTEX1 CMPB ,X+ DOES COMMAND MATCH TABLE ENTRY ?
0119 F01B 27 0D BEQ JMPEXT BRANCH IF MATCH FOUND
0120 F01D 30 02 LEAX 2,X POINT TO NEXT ENTRY IN TABLE
0121 F01F 8C F0 35 CMPX #EXTEND REACHED END OF TABLE YET ?
0122 F022 26 F5 BNE NXTEX1 IF NOT END, CHECK NEXT ENTRY
0123 F024 8E F0 35 LDX #MSGWHAT POINT TO MSG "WHAT?"
0124 F027 16 02 29 LBRA PDATA1 PRINT MSG AND RETURN
0125 F02A 6E 94 JMPEXT JMP [,X] JUMP TO COMMAND ROUTINE
0126 *
0127 * EXTENDED COMMAND JUMP TABLE
0128 *
0129 F02C EXTTAB EQU *
0130 F02C 42 FCC 'B' BOOT FLEX
0131 F02D F0 3E FDB UBSUB
0132 F02F 46 FCC 'F' FORMAT IDE DISK
0133 F030 F0 EA FDB UFSUB
0134 F032 58 FCC 'X' XMODEM ROM DISK UPLOAD
0135 F033 F2 BC FDB UXSUB
0136 *
0137 F035 EXTEND EQU *
0138 *
0139 F035 57 48 41 54 20 3F MSGWHAT FCC "WHAT ?"
0140 F03B 0A 0D 04 FCB $0A,$0D,$04
0141 *
0142 * GO TO FLEX RESIDENT IN MEMORY
0143 *
0144 F03E 8E CD 00 UBSUB LDX #$CD00
0145 F041 AF 4A STX 10,U
0146 F043 1F 34 TFR U,S
0147 F045 3B RTI
0148 *
0149 * recieve char from remote drive.
0150 * timeout if no response for approx 1s.
0151 * Entry: no parameters
0152 * Exit: (A) = recieved char, (C)=1 if valid char, (C)=0 if timeout.
0153 *
0154 F046 34 30 RCHAR PSHS X,Y
0155 *
0156 F048 8E 03 E8 LDX #1000 1000x inner loop
0157 F04B 10 8E 04 E2 RCHAR1 LDY #DELCON delay constant for inner loop (approx 1ms).
0158 F04F B6 E0 00 RCHAR2 LDA ACIAC1 test for recieved char
0159 F052 47 ASRA
0160 F053 25 0A BCS RCHAR3 get character
0161 F055 31 3F LEAY -1,Y else, continue to count delay
0162 F057 26 F6 BNE RCHAR2
0163 F059 30 1F LEAX -1,X
0164 F05B 26 EE BNE RCHAR1
0165 F05D 35 B0 PULS X,Y,PC return with error if timed out
0166 *
0167 F05F B6 E0 01 RCHAR3 LDA ACIAD1 return data (carry bit still set)
0168 F062 35 B0 PULS X,Y,PC
0169 *
0170 *
0171 * transmit char to remote drive.
0172 * timeout if no response for approx 1s. (allows for use of hardware flow control)
0173 * Entry: (A) = char to transmit
0174 * Exit: (A) = recieved char, (C)=1 if valid char, (C)=0 if timeout.
0175 *
0176 F064 34 30 SCHAR PSHS X,Y
0177 F066 34 02 PSHS A
0178 *
0179 F068 8E 03 E8 LDX #1000 1000x inner loop
0180 F06B 10 8E 04 E2 SCHAR1 LDY #DELCON delay constant for inner loop (approx 1ms).
0181 F06F B6 E0 00 SCHAR2 LDA ACIAC1 test for space in transmit FIFO
0182 F072 47 ASRA
0183 F073 47 ASRA
0184 F074 25 0C BCS SCHAR3 send character
0185 F076 31 3F LEAY -1,Y else, continue to count delay
0186 F078 26 F5 BNE SCHAR2
0187 F07A 30 1F LEAX -1,X
0188 F07C 26 ED BNE SCHAR1
0189 F07E 35 02 PULS A
0190 F080 35 B0 PULS X,Y,PC return with error if timed out
0191 *
0192 F082 35 02 SCHAR3 PULS A
0193 F084 B7 E0 01 STA ACIAD1 send data (carry bit still set)
0194 F087 35 B0 PULS X,Y,PC
0195 *
0196 ** 'UF' Format IDE Drive to FLEX standard.
0197 *
0198 F089 0A 0D DISFOS FCB $0A,$0D
0199 F08B 46 6F 72 6D 61 74 FCC 'Formating IDE disk... '
69 6E 67 20 49 44
45 20 64 69 73 6B
2E 2E 2E 20
0200 F0A1 0A 0D FCB $0A,$0D
0201 F0A3 44 72 69 76 65 20 FCC 'Drive Number ?'
4E 75 6D 62 65 72
20 3F
0202 F0B1 04 FCB 4
0203 F0B2 0A 0D 04 MESS6 FCB $0A,$0D,4
0204 F0B5 49 44 45 20 64 72 FCC 'IDE drive not allocated! '
69 76 65 20 6E 6F
74 20 61 6C 6C 6F
63 61 74 65 64 21
20
0205 F0CE 04 FCB 4
0206 F0CF 0A 0D UFMSG1 FCB $0A,$0D
0207 F0D1 46 6F 72 6D 61 74 FCC 'Format Complete'
20 43 6F 6D 70 6C
65 74 65
0208 F0E0 04 FCB 4
0209 F0E1 49 44 45 44 49 53 VOLMSG FCC 'IDEDISK '
4B 20
0210 F0E9 04 FCB 4
0211 *
0212 F0EA BD F4 BD UFSUB JSR INITDR
0213 F0ED 8E F0 89 LDX #DISFOS
0214 F0F0 BD F2 53 JSR PDATA1
0215 F0F3 17 FF 50 UFSUB1 LBSR RCHAR
0216 F0F6 24 FB BCC UFSUB1
0217 F0F8 17 FF 69 LBSR SCHAR
0218 F0FB 81 30 CMPA #'0'
0219 F0FD 10 25 00 EF LBLO UFEXIT
0220 F101 81 33 CMPA #'3'
0221 F103 10 22 00 E9 LBHI UFEXIT
0222 F107 80 30 SUBA #'0'
0223 F109 1F 89 TFR A,B
0224 F10B F7 01 00 STB DRVNUM
0225 F10E 8E 00 FD LDX #DRVNUM-3
0226 F111 BD F5 3A JSR DRVSEL
0227 *
0228 * set up free chain
0229 *
0230 F114 8E 02 00 LDX #BUFFER clear out buffer
0231 F117 4F CLRA
0232 F118 5F CLRB
0233 F119 A7 80 DFL1 STA 0,X+
0234 F11B 5A DECB
0235 F11C 26 FB BNE DFL1
0236 *
0237 F11E 7F 01 01 CLR TRACK
0238 F121 86 01 LDA #1
0239 F123 B7 01 02 STA SECTOR
0240 F126 8E 02 00 DFL2 LDX #BUFFER
0241 F129 B6 01 01 LDA TRACK
0242 F12C A7 84 STA 0,X
0243 F12E B6 01 02 LDA SECTOR
0244 F131 4C INCA
0245 F132 81 00 CMPA #RMAXSEC+1 last sector on track?
0246 F134 26 04 BNE DFL3
0247 F136 6C 84 INC 0,X
0248 F138 86 01 LDA #1
0249 F13A A7 01 DFL3 STA 1,X
0250 F13C B6 01 01 LDA TRACK
0251 F13F F6 01 02 LDB SECTOR
0252 F142 BD F5 15 JSR WRITSC
0253 F145 7C 01 02 INC SECTOR
0254 F148 B6 01 02 LDA SECTOR
0255 F14B 81 00 CMPA #RMAXSEC+1
0256 F14D 26 D7 BNE DFL2
0257 F14F 86 01 LDA #1
0258 F151 B7 01 02 STA SECTOR
0259 F154 7C 01 01 INC TRACK
0260 F157 B6 01 01 LDA TRACK
0261 F15A 81 00 CMPA #RMAXTRK
0262 F15C 26 C8 BNE DFL2
0263 * break free chain at last track/sector
0264 F15E 8E 02 00 LDX #BUFFER
0265 F161 86 FF LDA #RMAXTRK-1
0266 F163 C6 FF LDB #RMAXSEC
0267 F165 BD F4 F1 JSR READSC
0268 F168 8E 02 00 LDX #BUFFER
0269 F16B 6F 84 CLR 0,X
0270 F16D 6F 01 CLR 1,X
0271 F16F 86 FF LDA #RMAXTRK-1
0272 F171 C6 FF LDB #RMAXSEC
0273 F173 BD F5 15 JSR WRITSC
0274 * set up sector structure, SIR, directory etc
0275 F176 8E 02 00 LDX #BUFFER
0276 F179 4F CLRA
0277 F17A C6 FF LDB #RMAXSEC
0278 F17C BD F4 F1 JSR READSC
0279 F17F 8E 02 00 LDX #BUFFER
0280 F182 6F 84 CLR 0,X break end of directory chain
0281 F184 6F 01 CLR 1,X
0282 F186 4F CLRA
0283 F187 C6 FF LDB #RMAXSEC
0284 F189 BD F5 15 JSR WRITSC
0285 *
0286 F18C 8E 02 00 LDX #BUFFER
0287 F18F 4F CLRA
0288 F190 C6 03 LDB #3 set up SIR
0289 F192 BD F4 F1 JSR READSC
0290 F195 8E 02 00 LDX #BUFFER
0291 F198 6F 84 CLR 0,X break forward link
0292 F19A 6F 01 CLR 1,X
0293 *
0294 F19C 34 20 PSHS Y
0295 F19E 10 8E F0 E1 LDY #VOLMSG
0296 F1A2 C6 10 LDB #16
0297 F1A4 A6 A0 DFL4 LDA ,Y+
0298 F1A6 A7 85 STA B,X
0299 F1A8 5C INCB
0300 F1A9 C1 18 CMPB #24
0301 F1AB 26 F7 BNE DFL4
0302 F1AD 35 20 PULS Y
0303 *
0304 F1AF 4F CLRA
0305 F1B0 F6 01 00 LDB DRVNUM volume number
0306 F1B3 ED 88 1B STD 27,X
0307 *
0308 F1B6 CC 01 01 LDD #$0101 first trk/sec 01-01
0309 F1B9 ED 88 1D STD 29,X
0310 F1BC 86 FF LDA #RMAXTRK-1
0311 F1BE C6 FF LDB #RMAXSEC
0312 F1C0 ED 88 1F STD 31,X
0313 F1C3 ED 88 26 STD 38,X
0314 F1C6 CC FE 01 LDD #RTOTSEC total DATA sectors (2912-14)
0315 F1C9 ED 88 21 STD 33,X
0316 *
0317 F1CC 86 01 LDA #01 month set default creation date (SYS09's birthday!)
0318 F1CE A7 88 23 STA 35,X
0319 F1D1 86 07 LDA #07 day
0320 F1D3 A7 88 24 STA 36,X
0321 F1D6 86 07 LDA #07 year
0322 F1D8 A7 88 25 STA 37,X
0323 *
0324 F1DB 4F RF3 CLRA
0325 F1DC C6 03 LDB #3
0326 F1DE BD F5 15 JSR WRITSC
0327 *
0328 * Not sure what this is about
0329 * put bootstrap on track 0 sector 1
0330 *
0331 * LDX #BUFFER
0332 * CLRA
0333 * LDB #1
0334 * JSR READSC
0335 * LDX #BUFFER
0336 * LDA #$AA set the init flag
0337 * STA 0,X
0338 * LDA #$55
0339 * STA 1,X
0340 * CLRA
0341 * LDB #1
0342 * JSR WRITSC
0343 *
0344 * Write Boot sector
0345 *
0346 F1E1 8E F7 00 LDX #BOOT
0347 F1E4 4F CLRA TRACK 0
0348 F1E5 C6 01 LDB #$01 SECTOR 1
0349 F1E7 B7 01 01 STA TRACK
0350 F1EA F7 01 02 STB SECTOR
0351 F1ED 17 03 25 LBSR WRITSC
0352 *
0353 F1F0 8E F0 CF UFEXIT LDX #UFMSG1
0354 F1F3 7E F2 53 JMP PDATA1
0355 *
0356 * ACIA INPUT TEST
0357 *
0358 F1F6 B6 E0 00 INTEST LDA ACIAC1
0359 F1F9 85 01 BITA #$01
0360 F1FB 39 RTS
0361 *
0362 * RESET ACIA
0363 *
0364 F1FC 86 03 ACIRST LDA #$03 master reset
0365 F1FE B7 E0 00 STA ACIAC1
0366 F201 86 11 LDA #$11
0367 F203 B7 E0 00 STA ACIAC1
0368 F206 39 RTS
0369 *
0370 * ACIA INPUT
0371 *
0372 F207 86 10 INTER LDA #16
0373 F209 B7 01 08 STA DELCNT+0
0374 F20C 7F 01 09 CLR DELCNT+1
0375 F20F 7F 01 0A CLR DELCNT+2
0376 F212 B6 E0 00 INTER0 LDA ACIAC1
0377 F215 85 01 BITA #$01
0378 F217 26 08 BNE INTER1
0379 F219 85 78 BITA #$78
0380 F21B 27 0A BEQ INTER2
0381 F21D 8D DD BSR ACIRST
0382 F21F 20 E6 BRA INTER
0383 *
0384 F221 B6 E0 01 INTER1 LDA ACIAD1
0385 F224 1C FD ANDCC #$FF-VFLAG
0386 F226 39 RTS
0387 *
0388 F227 7A 01 0A INTER2 DEC DELCNT+2
0389 F22A 26 E6 BNE INTER0
0390 F22C 7A 01 09 DEC DELCNT+1
0391 F22F 26 E1 BNE INTER0
0392 F231 7A 01 08 DEC DELCNT+0
0393 F234 26 DC BNE INTER0
0394 F236 4F CLRA
0395 F237 1A 02 ORCC #VFLAG
0396 F239 39 RTS
0397 *
0398 * ACIA OUTPUT
0399 *
0400 F23A 34 02 OUTTER PSHS A
0401 *
0402 F23C B6 E0 00 OUTTE1 LDA ACIAC1
0403 F23F 85 02 BITA #$02
0404 F241 26 08 BNE OUTTE2
0405 F243 85 78 BITA #$78
0406 F245 27 F5 BEQ OUTTE1
0407 F247 8D B3 BSR ACIRST
0408 F249 20 F1 BRA OUTTE1
0409 *
0410 F24B 35 02 OUTTE2 PULS A
0411 F24D B7 E0 01 STA ACIAD1
0412 F250 39 RTS
0413 *
0414 * Print Data
0415 *
0416 F251 8D E7 PDATA0 BSR OUTTER
0417 F253 A6 80 PDATA1 LDA ,X+
0418 F255 81 04 CMPA #$04
0419 F257 26 F8 BNE PDATA0
0420 F259 39 RTS
0421 *
0422 *
0423 ** 'UX' Xmodem IDE Disk upload
0424 *
0425 F25A 0D 0A UXMES0 FCB $0D,$0A
0426 F25C 58 6D 6F 64 65 6D FCC 'Xmodem IDE Disk Upload'
20 49 44 45 20 44
69 73 6B 20 55 70
6C 6F 61 64
0427 F272 04 FCB 4
0428 F273 0D 0A UXMES1 FCB $0D,$0A
0429 F275 55 70 6C 6F 61 64 FCC 'Upload Complete'
20 43 6F 6D 70 6C
65 74 65
0430 F284 04 FCB 4
0431 F285 0D 0A UXMES2 FCB $0D,$0A
0432 F287 55 70 6C 6F 61 64 FCC 'Upload Error'
20 45 72 72 6F 72
0433 F293 04 FCB 4
0434 F294 0D 0A UXMSG3 FCB $0D,$0A
0435 F296 44 72 69 76 65 20 FCC 'Drive Number :'
4E 75 6D 62 65 72
20 3A
0436 F2A4 04 FCB 4
0437 F2A5 0D 0A UXMSG4 FCB $0D,$0A
0438 F2A7 41 72 65 20 59 6F FCC 'Are You Sure ? (Y/N)'
75 20 53 75 72 65
20 3F 20 28 59 2F
4E 29
0439 F2BB 04 FCB 4
0440 *
0441 * Print Banner
0442 *
0443 F2BC 8E F2 5A UXSUB LDX #UXMES0
0444 F2BF 17 FF 91 LBSR PDATA1
0445 *
0446 * Prompt for Disk drive number (0 to 3)
0447 *
0448 F2C2 8E F2 94 LDX #UXMSG3
0449 F2C5 17 FF 8B LBSR PDATA1
0450 F2C8 17 FF 3C UXSUB1 LBSR INTER
0451 F2CB 29 FB BVS UXSUB1
0452 F2CD 17 FF 6A LBSR OUTTER
0453 F2D0 81 30 CMPA #'0
0454 F2D2 10 25 01 2E LBLO UXEXIT
0455 F2D6 81 33 CMPA #'3
0456 F2D8 10 22 01 28 LBHI UXEXIT
0457 F2DC 80 30 SUBA #'0
0458 F2DE B7 01 00 STA DRVNUM
0459 *
0460 * Report selected drive
0461 *
0462 F2E1 8E F2 94 LDX #UXMSG3
0463 F2E4 17 FF 6C LBSR PDATA1
0464 F2E7 B6 01 00 LDA DRVNUM
0465 F2EA 8B 30 ADDA #'0
0466 F2EC 17 FF 4B LBSR OUTTER
0467 *
0468 * Ask for confirmation (Y/N)
0469 *
0470 F2EF 8E F2 A5 LDX #UXMSG4
0471 F2F2 17 FF 5E LBSR PDATA1
0472 F2F5 17 FF 0F UXSUB2 LBSR INTER
0473 F2F8 29 FB BVS UXSUB2
0474 F2FA 17 FF 3D LBSR OUTTER
0475 F2FD 84 5F ANDA #$5F
0476 F2FF 81 4E CMPA #'N
0477 F301 10 27 00 FF LBEQ UXEXIT
0478 F305 81 59 CMPA #'Y
0479 F307 26 B3 BNE UXSUB
0480 *
0481 * We have confirmation ... now load the disk image
0482 *
0483 F309 17 01 B1 LBSR INITDR
0484 F30C CE F4 2D LDU #XSTST
0485 F30F FF 01 06 STU XSTATE
0486 F312 86 01 LDA #1
0487 F314 B7 01 04 STA BLKNUM
0488 *
0489 * Sector1
0490 *
0491 F317 8E 02 00 LDX #BUFFER
0492 *
0493 F31A 4F CLRA TRACK 0
0494 F31B C6 01 LDB #$01 SECTOR 1
0495 F31D B7 01 01 STA TRACK
0496 F320 F7 01 02 STB SECTOR
0497 *
0498 F323 17 00 EA LBSR XREAD
0499 F326 10 25 00 E0 LBCS UXERR
0500 F32A 17 01 87 LBSR XACK
0501 F32D 17 00 E0 LBSR XREAD
0502 F330 10 25 00 D6 LBCS UXERR
0503 *
0504 F334 8E 02 00 LDX #BUFFER
0505 F337 B6 01 01 LDA TRACK
0506 F33A F6 01 02 LDB SECTOR
0507 F33D 17 01 D5 LBSR WRITSC
0508 F340 17 01 71 LBSR XACK
0509 *
0510 * Sector 2
0511 *
0512 F343 8E 02 00 LDX #BUFFER
0513 *
0514 F346 B6 01 01 LDA TRACK
0515 F349 F6 01 02 LDB SECTOR
0516 F34C 5C INCB
0517 F34D B7 01 01 STA TRACK
0518 F350 F7 01 02 STB SECTOR
0519 *
0520 F353 17 00 BA LBSR XREAD
0521 F356 10 25 00 B0 LBCS UXERR
0522 F35A 17 01 57 LBSR XACK
0523 F35D 17 00 B0 LBSR XREAD
0524 F360 10 25 00 A6 LBCS UXERR
0525 *
0526 F364 8E 02 00 LDX #BUFFER
0527 F367 B6 01 01 LDA TRACK
0528 F36A F6 01 02 LDB SECTOR
0529 F36D 17 01 A5 LBSR WRITSC
0530 *
0531 F370 17 01 41 LBSR XACK
0532 *
0533 * Sector 3 - SIR
0534 *
0535 F373 8E 02 00 LDX #BUFFER
0536 *
0537 F376 B6 01 01 LDA TRACK
0538 F379 F6 01 02 LDB SECTOR
0539 F37C 5C INCB
0540 F37D B7 01 01 STA TRACK
0541 F380 F7 01 02 STB SECTOR
0542 *
0543 F383 17 00 8A LBSR XREAD
0544 F386 10 25 00 80 LBCS UXERR
0545 F38A 17 01 27 LBSR XACK
0546 F38D 17 00 80 LBSR XREAD
0547 F390 10 25 00 76 LBCS UXERR
0548 *
0549 F394 8E 02 00 LDX #BUFFER
0550 F397 A6 88 26 LDA 38,X
0551 F39A 4C INCA
0552 F39B B7 01 0B STA MAXTRK
0553 F39E E6 88 27 LDB 39,X
0554 F3A1 5C INCB
0555 F3A2 F7 01 0C STB MAXSEC
0556 F3A5 B6 01 01 LDA TRACK
0557 F3A8 F6 01 02 LDB SECTOR
0558 F3AB 17 01 67 LBSR WRITSC
0559 *
0560 F3AE 17 01 03 LBSR XACK
0561 *
0562 * Sector 4 to Last Track & Sector
0563 *
0564 *
0565 F3B1 B6 01 01 LDA TRACK
0566 F3B4 F6 01 02 LDB SECTOR
0567 F3B7 5C INCB
0568 *
0569 F3B8 8E 02 00 UXLOOP LDX #BUFFER
0570 F3BB B7 01 01 STA TRACK
0571 F3BE F7 01 02 STB SECTOR
0572 *
0573 F3C1 17 00 4C LBSR XREAD
0574 F3C4 10 25 00 42 LBCS UXERR
0575 F3C8 17 00 E9 LBSR XACK
0576 F3CB 17 00 42 LBSR XREAD
0577 F3CE 10 25 00 38 LBCS UXERR
0578 *
0579 F3D2 8E 02 00 LDX #BUFFER
0580 F3D5 B6 01 01 LDA TRACK
0581 F3D8 F6 01 02 LDB SECTOR
0582 F3DB 17 01 37 LBSR WRITSC
0583 F3DE 17 00 D3 LBSR XACK
0584 *
0585 F3E1 B6 01 01 LDA TRACK
0586 F3E4 F6 01 02 LDB SECTOR
0587 F3E7 5C INCB
0588 F3E8 F1 01 0C CMPB MAXSEC
0589 F3EB 26 CB BNE UXLOOP
0590 F3ED C6 01 LDB #1
0591 F3EF 4C INCA
0592 F3F0 B1 01 0B CMPA MAXTRK
0593 F3F3 26 C3 BNE UXLOOP
0594 *
0595 *
0596 * Write Boot sector
0597 *
0598 F3F5 8E F7 00 LDX #BOOT
0599 F3F8 4F CLRA TRACK 0
0600 F3F9 C6 01 LDB #$01 SECTOR 1
0601 F3FB B7 01 01 STA TRACK
0602 F3FE F7 01 02 STB SECTOR
0603 F401 17 01 11 LBSR WRITSC
0604 *
0605 F404 8E F2 73 UXEXIT LDX #UXMES1
0606 F407 7E F2 53 JMP PDATA1
0607 *
0608 F40A 8E F2 85 UXERR LDX #UXMES2
0609 F40D 16 FE 43 LBRA PDATA1
0610 *
0611 * Get a Byte using XModem protocol
0612 * Carry clear => no errors
0613 * Carry set => errors
0614 *
0615 F410 34 40 XREAD PSHS U
0616 F412 FE 01 06 LDU XSTATE
0617 *
0618 F415 17 FD EF XBYTE0 LBSR INTER
0619 F418 28 0A BVC XBYTE1
0620 F41A 86 15 LDA #NAK
0621 F41C 17 FE 1B LBSR OUTTER
0622 F41F CE F4 2D LDU #XSTST
0623 F422 20 F1 BRA XBYTE0
0624 *
0625 F424 AD C4 XBYTE1 JSR ,U
0626 F426 26 ED BNE XBYTE0
0627 F428 FF 01 06 STU XSTATE
0628 F42B 35 C0 PULS U,PC
0629 *
0630 * START - LOOK FOR SOH (START OF HEADER) = $01
0631 *
0632 F42D 81 01 XSTST CMPA #SOH
0633 F42F 26 06 BNE XSTST1
0634 F431 CE F4 4D LDU #XSTBL
0635 F434 1C FA ANDCC #$FF-CFLAG-ZFLAG No abort, no valid data (no exit)
0636 F436 39 RTS
0637 *
0638 F437 81 04 XSTST1 CMPA #EOT
0639 F439 26 08 BNE XSTST2
0640 F43B 86 06 LDA #ACK
0641 F43D 17 FD FA LBSR OUTTER
0642 F440 1A 05 ORCC #CFLAG+ZFLAG Set (c)=1 abort & exit
0643 F442 39 RTS
0644 *
0645 F443 81 18 XSTST2 CMPA #CAN
0646 F445 26 03 BNE XSTST3
0647 F447 1A 05 ORCC #CFLAG+ZFLAG Set (c)=1 abort & exit
0648 F449 39 RTS
0649 *
0650 F44A 1C FA XSTST3 ANDCC #$FF-CFLAG-ZFLAG
0651 F44C 39 RTS
0652 *
0653 * Got SOH
0654 * Now get block number
0655 *
0656 F44D B1 01 04 XSTBL CMPA BLKNUM
0657 F450 26 06 BNE XSTBLE
0658 F452 CE F4 63 LDU #XSTCOM
0659 F455 1C FA ANDCC #$FF-CFLAG-ZFLAG No abort, No valid data (no exit)
0660 F457 39 RTS
0661 *
0662 * Error in block number
0663 *
0664 F458 86 15 XSTBLE LDA #NAK
0665 F45A 17 FD DD LBSR OUTTER
0666 F45D CE F4 2D LDU #XSTST
0667 F460 1C FA ANDCC #$FF-CFLAG-ZFLAG No abort, No valid data (no exit)
0668 F462 39 RTS
0669 *
0670 * Get complement of block number
0671 *
0672 F463 43 XSTCOM COMA
0673 F464 B1 01 04 CMPA BLKNUM
0674 F467 26 EF BNE XSTBLE
0675 F469 7F 01 03 CLR CHKSUM
0676 F46C 86 80 LDA #128
0677 F46E B7 01 05 STA BYTCNT
0678 F471 CE F4 77 LDU #XSTDA
0679 F474 1C FA ANDCC #$FF-CFLAG-ZFLAG No abort, No valid data (no exit)
0680 F476 39 RTS
0681 *
0682 * Get data bytes
0683 *
0684 F477 34 02 XSTDA PSHS A
0685 F479 BB 01 03 ADDA CHKSUM
0686 F47C B7 01 03 STA CHKSUM
0687 F47F 35 02 PULS A
0688 F481 7A 01 05 DEC BYTCNT
0689 F484 26 03 BNE XSTDA1
0690 F486 CE F4 8E LDU #XSTCK
0691 F489 A7 80 XSTDA1 STA ,X+
0692 F48B 1C FA ANDCC #$FF-CFLAG-ZFLAG No abort, no valid data (no exit)
0693 F48D 39 RTS
0694 *
0695 * Byte count reached zero
0696 * Check checksum byte
0697 *
0698 F48E B1 01 03 XSTCK CMPA CHKSUM
0699 F491 26 0B BNE XSTCK1 retry if wrong checksum
0700 *
0701 * Checksum OK ...
0702 * increment block number
0703 * Don't send ACK until data written to CF
0704 *
0705 F493 7C 01 04 INC BLKNUM
0706 F496 CE F4 2D LDU #XSTST
0707 F499 1C FE ANDCC #$FF-CFLAG No abort
0708 F49B 1A 04 ORCC #ZFLAG Valid data (exit)
0709 F49D 39 RTS
0710 *
0711 * Checksum Error detected ...
0712 * Reset Sector counter in ACCB to last 128 byte boundary
0713 * and send NAK
0714 *
0715 F49E 34 04 XSTCK1 PSHS B
0716 F4A0 1F 10 TFR X,D
0717 F4A2 5A DECB
0718 F4A3 C4 80 ANDB #128
0719 F4A5 1F 01 TFR D,X
0720 F4A7 35 04 PULS B
0721 F4A9 86 15 LDA #NAK
0722 F4AB 17 FD 8C XSTCK2 LBSR OUTTER
0723 F4AE CE F4 2D LDU #XSTST
0724 F4B1 1C FA ANDCC #$FF-CFLAG-ZFLAG No abort, no valid data (no exit)
0725 F4B3 39 RTS
0726 *
0727 * Acknowledge Data Received
0728 *
0729 F4B4 34 02 XACK PSHS A
0730 F4B6 86 06 LDA #ACK
0731 F4B8 17 FD 7F LBSR OUTTER
0732 F4BB 35 82 PULS A,PC
0733 *
0734 *
0735 ** FLEX 9 IDE DISK DRIVERS
0736 *
0737 * FOR SYS09BUG 1.2 ON THE XSA-3S1000
0738 * WITH I/O MAPPED AT $XE000
0739 * AND ROM MAPPED AT $XF000
0740 *
0741 *
0742 * INITIALIZE CF CARD FOR 8 BIT LBA MODE
0743 *
0744 F4BD CC 00 06 INITDR LDD #AUXRESET
0745 F4C0 FD E1 1E STD CF_AUX
0746 F4C3 CC 00 02 LDD #AUXRSTREL
0747 F4C6 FD E1 1E STD CF_AUX
0748 F4C9 CC 00 E0 LDD #HEADLBA
0749 F4CC FD E1 0C STD CF_HEAD
0750 F4CF 16 02 D6 LBRA WTRDY
0751 *
0752 * RESTORE DISK DRIVER (SEEK TRACK 00)
0753 *
0754 F4D2 8D 66 RESTR1 BSR DRVSEL
0755 F4D4 4F CLRA ; Track 0
0756 F4D5 C6 01 LDB #$01 ; Sector 1
0757 *
0758 * Seek track and sector
0759 * A holds track number (0 - ??)
0760 * B holds sector number (1 - ??)
0761 * Sector numbers starts from 1
0762 * subtract 1 to start from sector 0 on CF
0763 *
0764 F4D7 34 02 SEEKTS PSHS A
0765 F4D9 4F CLRA
0766 F4DA 5A DECB
0767 F4DB FD E1 06 STD CF_SECNUM
0768 F4DE E6 E4 LDB ,S
0769 F4E0 FD E1 08 STD CF_CYLLO
0770 F4E3 F6 01 00 LDB DRVNUM
0771 F4E6 FD E1 0A STD CF_CYLHI
0772 F4E9 C6 01 LDB #$01
0773 F4EB FD E1 04 STD CF_SECCNT
0774 F4EE 5F CLRB
0775 F4EF 35 82 PULS A,PC
0776 *
0777 * READ SECTORS FROM CF
0778 *
0779 *
0780 F4F1 8D E4 READSC BSR SEEKTS
0781 F4F3 CC 00 20 LDD #CMDREAD ; IDE READ MULTIPLE
0782 F4F6 FD E1 0E STD CF_COMAND
0783 F4F9 17 02 AC LBSR WTRDY
0784 *
0785 * READ LOOP
0786 *
0787 F4FC 34 20 PSHS Y
0788 F4FE 10 8E 01 00 LDY #256
0789 F502 17 02 B2 RDLP1 LBSR WTDRQ
0790 F505 FC E1 00 LDD CF_DATA
0791 F508 E7 80 STB ,X+
0792 F50A 31 3F LEAY -1,Y
0793 F50C 26 F4 BNE RDLP1
0794 F50E 35 20 PULS Y
0795 *
0796 F510 17 02 95 LBSR WTRDY
0797 F513 5F CLRB
0798 F514 39 RTS
0799 *
0800 * WRITE SECTOR TO CF
0801 *
0802 F515 8D C0 WRITSC BSR SEEKTS ; SEEK TRACK & SECTOR
0803 F517 CC 00 30 LDD #CMDWRITE ; IDE WRITE MULTIPLE
0804 F51A FD E1 0E STD CF_COMAND
0805 F51D 17 02 88 LBSR WTRDY
0806 *
0807 * WRITE LOOP
0808 *
0809 F520 34 20 PSHS Y
0810 F522 10 8E 01 00 LDY #256
0811 F526 4F CLRA
0812 F527 17 02 8D WRTLP1 LBSR WTDRQ
0813 F52A E6 80 LDB ,X+
0814 F52C FD E1 00 STD CF_DATA
0815 F52F 31 3F LEAY -1,Y
0816 F531 26 F4 BNE WRTLP1
0817 F533 35 20 PULS Y
0818 *
0819 F535 17 02 70 LBSR WTRDY
0820 F538 5F CLRB
0821 F539 39 RTS
0822 *
0823 * DRIVE SELECT DISK DRIVER
0824 *
0825 F53A A6 03 DRVSEL LDA 3,X GET DRIVE # FROM FCB
0826 F53C 81 03 CMPA #3
0827 F53E 23 01 BLS DRVS2 IF > 3, SET IT TO 0
0828 F540 4F CLRA
0829 F541 B7 01 00 DRVS2 STA DRVNUM
0830 F544 5F CLRB ; SET Z, CLEAR C
0831 F545 39 RTS
0832 *
0833 * CHECK DRIVE READY DISK DRIVER
0834 *
0835 F546 A6 03 CHKDRV LDA 3,X
0836 F548 5F CLRB ; CLEAR C, SET Z
0837 F549 39 RTS
0838 *******************************************************
0839 *
0840 * Bootstrap FLEX Loader
0841 *
0842 * SBUG1.8 loads the bootstap loader at $C000
0843 * however the Flex adaption manual has the
0844 * bootstrap loader residing at $C100
0845 * Bootstrap Loader is position independent code
0846 *
0847 ******************************************************
0848 *
0849 * Equates
0850 *
0851 C0FF BSSTACK EQU $C0FF
0852 C300 SCTBUF EQU $C300
0853 *
0854 * Start of Utility
0855 *
0856 F700 ORG MONEXT+$0700
0857 F700 20 0B BOOT BRA BLOAD0
0858 F702 00 00 00 FCB 0,0,0
0859 F705 00 TRK FCB 0 File start track
0860 F706 00 SCT FCB 0 File start sector
0861 F707 00 DNS FCB 0 Density Flag (not used)
0862 F708 C0 00 TADR FDB $C000 Transfer address
0863 F70A 00 00 LADR FDB 0 Load Address
0864 F70C 00 DRNUM FCB 0 Drive number 0
0865 *
0866 F70D 10 CE C0 FF BLOAD0 LDS #BSSTACK Set up Bootstrap stack
0867 F711 EC 8C F1 LDD TRK,PCR Set up start track and sector
0868 F714 FD C3 00 STD SCTBUF
0869 F717 10 8E C4 00 LDY #SCTBUF+256
0870 *
0871 * Perform actual file load
0872 *
0873 F71B 8D 35 BLOAD1 BSR GETCH Get acharcater
0874 F71D 81 02 CMPA #$02 Data record hearder ?
0875 F71F 27 10 BEQ BLOAD2 Skip, is so
0876 F721 81 16 CMPA #$16 Xfr address hearder ?
0877 F723 26 F6 BNE BLOAD1 Loop if neither
0878 *
0879 * Get transfer address
0880 *
0881 F725 8D 2B BSR GETCH
0882 F727 A7 8C DE STA TADR,PCR
0883 F72A 8D 26 BSR GETCH
0884 F72C A7 8C DA STA TADR+1,PCR
0885 F72F 20 EA BRA BLOAD1
0886 *
0887 * Load data record
0888 *
0889 F731 8D 1F BLOAD2 BSR GETCH Get load address
0890 F733 A7 8C D4 STA LADR,PCR
0891 F736 8D 1A BSR GETCH
0892 F738 A7 8C D0 STA LADR+1,PCR
0893 F73B 8D 15 BSR GETCH Get Bytes count
0894 F73D 1F 89 TFR A,B
0895 F73F 5D TSTB
0896 F740 27 D9 BEQ BLOAD1 Loop if count = 0
0897 F742 AE 8C C5 LDX LADR,PCR Get load address
0898 F745 34 14 BLOAD3 PSHS B,X
0899 F747 8D 09 BSR GETCH Get data character
0900 F749 35 14 PULS B,X
0901 F74B A7 80 STA ,X+ Store at load address
0902 F74D 5A DECB
0903 F74E 26 F5 BNE BLOAD3 Loop until count = 0
0904 F750 20 C9 BRA BLOAD1
0905 *
0906 * Get Character routine
0907 * Reads a sector if needed
0908 *
0909 F752 10 8C C4 00 GETCH CMPY #SCTBUF+256 out of data ?
0910 F756 26 0F BNE GETCH4 Go read Character if not
0911 F758 8E C3 00 GETCH2 LDX #SCTBUF Point to buffer
0912 F75B EC 84 LDD 0,X Get forward Link
0913 F75D 27 0B BEQ GOFLEX if zero, file is loaded
0914 F75F 8D 26 BSR READ Read next sector
0915 F761 26 9D BNE BOOT start over if error
0916 F763 10 8E C3 04 LDY #SCTBUF+4 Point past link
0917 F767 A6 A0 GETCH4 LDA ,Y+ Else, get a character
0918 F769 39 RTS
0919 *
0920 * File is loaded, Jump to it
0921 *
0922 F76A 6E 9C 9B GOFLEX JMP [TADR,PCR] Jump to transfer address
0923
0924 *
0925 ** FLEX 9 IDE DISK DRIVERS
0926 *
0927 * Seek track and sector
0928 * A holds track number (0 - ??)
0929 * B holds sector number (1 - ??)
0930 * Sector numbers starts from 1
0931 * subtract 1 to start from sector 0 on CF
0932 *
0933 F76D 34 02 SEEK PSHS A
0934 F76F 4F CLRA
0935 F770 5A DECB
0936 F771 FD E1 06 STD CF_SECNUM
0937 F774 E6 E4 LDB ,S
0938 F776 FD E1 08 STD CF_CYLLO
0939 F779 E6 8C 90 LDB DRNUM,PCR
0940 F77C FD E1 0A STD CF_CYLHI
0941 F77F C6 01 LDB #$01
0942 F781 FD E1 04 STD CF_SECCNT
0943 F784 5F CLRB
0944 F785 35 82 PULS A,PC
0945 *
0946 * READ SECTORS FROM CF
0947 *
0948 *
0949 F787 8D E4 READ BSR SEEK
0950 F789 CC 00 20 LDD #CMDREAD ; IDE READ MULTIPLE
0951 F78C FD E1 0E STD CF_COMAND
0952 F78F 8D 17 BSR WTRDY
0953 *
0954 * READ LOOP
0955 *
0956 F791 34 20 PSHS Y
0957 F793 10 8E 01 00 LDY #256
0958 F797 8D 1E READ1 BSR WTDRQ
0959 F799 FC E1 00 LDD CF_DATA
0960 F79C E7 80 STB ,X+
0961 F79E 31 3F LEAY -1,Y
0962 F7A0 26 F5 BNE READ1
0963 F7A2 35 20 PULS Y
0964 *
0965 F7A4 8D 02 BSR WTRDY
0966 F7A6 5F CLRB
0967 F7A7 39 RTS
0968 *
0969 * WAIT UNTIL READY
0970 *
0971 F7A8 FC E1 0E WTRDY LDD CF_STATUS
0972 F7AB C5 80 BITB #BUSY
0973 F7AD 26 F9 BNE WTRDY
0974 F7AF FC E1 0E LDD CF_STATUS
0975 F7B2 C5 40 BITB #DRDY
0976 F7B4 27 F2 BEQ WTRDY
0977 F7B6 39 RTS
0978 *
0979 * WAIT FOR DATA REQUEST
0980 *
0981 F7B7 FC E1 0E WTDRQ LDD CF_STATUS
0982 F7BA C5 08 BITB #DRQ
0983 F7BC 27 F9 BEQ WTDRQ
0984 F7BE 39 RTS
0985 *
0004 END
0000 INCLUDE "sys09bug.txt"
0001 * NAM SYS09BUG12 SYSTEM09 MONITOR
0002 OPT l
sys09bug.txt page 3
0004 *
0005 * MONITOR PROGRAM FOR THE SOUTHWEST TECHNICAL
0006 * PRODUCTS MP-09 CPU BOARD AS COMMENTED BY....
0007 *
0008 * ALLEN CLARK WALLACE WATSON
0009 * 2502 REGAL OAKS LANE 4815 EAST 97th AVE.
0010 * LUTZ, FLA. 33549 TEMPLE TERRACE, FLA. 33617
0011 * PH. 813-977-0347 PH. 813-985-1359
0012 *
0013 * MODIFIED TO SBUG09 VER 1.8 BY: RANDY JARRETT
0014 * 2561 NANTUCKET DR APT. E
0015 * ATLANTA, GA 30345
0016 * PH. 404-320-1043
0017 *
0018 * MODIFIED TO SYS09BUG VER 1.0
0019 * FOR: SYSTEM09 FPGA SYSTEM
0020 * BY: JOHN KENT
0021 * DATE: 21ST NOVEMBER 2006
0022 * REMOVED: DISK BOOTS
0023 * MEMORY TEST
0024 * ADDED: ADM3A VDU DRIVER
0025 *
0026 * MODIFIED TO SYS09BUG VER 1.1
0027 * FOR: SYSTEM09 FPGA SYSTEM
0028 * BY: JOHN KENT
0029 * DATE: 7TH JANUARY 2007
0030 * ADDED: 'U' USER EXTENTION COMMANDS AT $F000
0031 * CONDITIONAL ASSEMBLY OF FLOPPY BOOTS
0032 * AND REALTIME CLOCK
0033 *
0034 * MODIFIED TO SYS09BUG VER 1.2
0035 * FOR: SYSTEM09 FPGA SYSTEM
0036 * BY: JOHN KENT
0037 * DATE: 21ST MAY 2007
0038 * ADDED: COMPACT FLASH BOOT TO FPGA VERSION
0039 * REMOVED PORT REDIRECTION ON PUNCH & LOAD
0040 *
0041 * Modified to SYS09BUG VER 1.3
0042 * FOR: SYSTEM09 FPGA SYSTEM
0043 * BY: JOHN KENT
0044 * DATE: 8TH JAN 2008
0045 * ADDED: CONDITIONALS FOR SPARTAN3E STARTER BOARD
0046 * WITH ONLY 32K OF RAM
0047 *
0048 * Modified to SYS09BUG VER 1.4
0049 * FOR: SYSTEM09 FPGA SYSTEM
0050 * BY: JOHN KENT
0051 * DATE: 3RD FEB 2008
0052 * ADDED: CONDITIONALS FOR XESS BOARD WITH IDE
0053 * SEPERATE CONDITIONAL FOR S3 STARTER AND B5-X300
0054 * 16 BIT IDE DISK BOOT STRAP ROUTINE
0055 * CHANGED: SEPARARTED OPTIONS EQUATES AND BODY INTO SEPARATE FILES
0056 *
0057 * *** COMMANDS ***
0058 *
0059 * CONTROL A = ALTER THE "A" ACCUMULATOR
0060 * CONTROL B = ALTER THE "B" ACCUMULATOR
0061 * CONTROL C = ALTER THE CONDITION CODE REGISTER
0062 * CONTROL D = ALTER THE DIRECT PAGE REGISTER
0063 * CONTROL P = ALTER THE PROGRAM COUNTER
0064 * CONTROL U = ALTER USER STACK POINTER
0065 * CONTROL X = ALTER "X" INDEX REGISTER
0066 * CONTROL Y = ALTER "Y" INDEX REGISTER
0067 * B hhhh = SET BREAKPOINT AT LOCATION $hhhh
0068 * D = 5.25" MINIFLOPPY BOOT
0069 * E ssss-eeee = EXAMINE MEMORY
0070 * FROM STARTING ADDRESS ssss
0071 * TO ENDING ADDRESS eeee.
0072 * G = CONTINUE EXECUTION FROM BREAKPOINT OR SWI
0073 * L = LOAD TAPE
0074 * M hhhh = EXAMINE AND CHANGE MEMORY LOCATION hhhh
0075 * P ssss-eeee = PUNCH TAPE, START ssss TO END eeee ADDR.
0076 * R = DISPLAY REGISTER CONTENTS
0077 * S = DISPLAY STACK FROM ssss TO $DFC0
0078 * U = 8" DMAF2 FLOPPY BOOT
0079 * U = USER EXTENSION COMMANDS AT $F000
0080 * X = REMOVE ALL BREAKPOINTS
0081 *
0082 *
0083 ***************************************************
0084 * SYS09BUG VARIABLE SPACE
0085 ***************************************************
0086 *
0087 DFC0 ORG MONRAM
0088 DFC0 STACK EQU * TOP OF INTERNAL STACK
0089 DFC0 NMI RMB 2 USER NMI VECTOR
0090 DFC2 SWI3 RMB 2 SOFTWARE INTERRUPT VECTOR #3
0091 DFC4 SWI2 RMB 2 SOFTWARE INTERRUPT VECTOR #2
0092 DFC6 FIRQ RMB 2 FAST INTERRUPT VECTOR
0093 DFC8 IRQ RMB 2 INTERRUPT VECTOR
0094 DFCA SWI RMB 2 SOFTWARE INTERRUPT VECTOR
0095 DFCC SVCVO RMB 2 SUPERVISOR CALL VECTOR ORGIN
0096 DFCE SVCVL RMB 2 SUPERVISOR CALL VECTOR LIMIT
0097 IFD DATOPT
0098 DFD0 LRARAM RMB 16 LRA ADDRESSES
0099 ENDIF DATOPT
0100 DFE0 CPORT RMB 2 RE-VECTORABLE CONTROL PORT
0101 DFE2 ECHO RMB 1 ECHO FLAG
0102 DFE3 BPTBL RMB 24 BREAKPOINT TABLE BASE ADDR
0103 IFD TRAOPT
0104 NMISAV RMB 2 NMI Jump Vector Backup
0105 TRACNT RMB 2 Trace Count
0106 ENDIF TRAOPT
0106 ENDIF TRAOPT
0107 IFD VDUOPT
0108 *
0109 **************************************************
0110 * VDU8 DISPLAY DRIVER VARIABLES *
0111 **************************************************
0112 *
0113 **** ALWAYS KEEP COLADX AND ROWADX TOGETHER ******
0114 DFFB COLADX RMB 1 CURSOR COLUMN
0115 DFFC ROWADX RMB 1 CURSOR ROW
0116 **************************************************
0117 *
0118 DFFD NEWROW RMB 1 NEW ROW TEMP FOR ESCAPE
0119 DFFE ESCFLG RMB 1 ESCAPE SEQUENCE ACTIVE
0120 ENDIF VDUOPT
0121 IFD DG640OPT
0122 *
0123 ***************************************************
0124 * DG640 MEMORY MAPPED DISPLAY DRIVER VARIABLES *
0125 ***************************************************
0126 *
0127 ***** ALWAYS KEEP THESE TWO BYTES TOGETHER *****
0128 COLADX RMB 1 CURSOR COLUMN
0129 ROWADX RMB 1 CURSOR ROW
0130 *************************************************
0131 CURSOR RMB 2 ABSOLUTE SCREEN ADDRESS
0132 NEWROW RMB 1 NEW ROW TEMP FOR ESCAPE
0133 ESCFLG RMB 1 ESCAPE SEQUENCE ACTIVE
0134 ENDIF DG640OPT
0134 ENDIF DG640OPT
0135 *
0136 *
0137 ***************************************************
0138 * START OF ROM *
0139 ***************************************************
0140 *
0141 F800 ORG MONROM
0142 F800 F8 14 FDB MONITOR
0143 F802 F8 61 FDB NEXTCMD
0144 F804 FC A1 FDB INCH
0145 F806 FC 9B FDB INCHE
0146 F808 FC B9 FDB INCHEK
0147 F80A FC CE FDB OUTCH
0148 F80C FB 8F FDB PDATA
0149 F80E FB 1E FDB PCRLF
0150 F810 FB 1A FDB PSTRNG
0151 F812 FA 2E FDB LRA
0152 *
0153 IFD ADSOPT
0154 FDB PCHK CHECK FOR PRINTER INPUT
0155 FDB PINIZ INITIATE PRINTER
0156 FDB POUTCH OUTPUT CH. TO PRINTER
0157 FDB VINIZ
0158 FDB VOUTCH
0159 FDB ACINIZ
0160 FDB AOUTCH
0161 ENDIF ADSOPT
0161 ENDIF ADSOPT
0162 *
0163 * MONITOR
0164 *
0165 * VECTOR ADDRESS STRING IS.....
0166 * $F8A1-$F8A1-$F8A1-$F8A1-$F8A1-$FAB0-$FFFF-$FFFF
0167 *
0168 F814 8E FE 74 MONITOR LDX #RAMVEC POINT TO VECTOR ADDR. STRING
0169 F817 10 8E DF C0 LDY #STACK POINT TO RAM VECTOR LOCATION
0170 F81B C6 10 LDB #$10 BYTES TO MOVE = 16
0171 F81D A6 80 LOOPA LDA ,X+ GET VECTOR BYTE
0172 F81F A7 A0 STA ,Y+ PUT VECTORS IN RAM / $DFC0-$DFCF
0173 F821 5A DECB SUBTRACT 1 FROM NUMBER OF BYTES TO MOVE
0174 F822 26 F9 BNE LOOPA CONTINUE UNTIL ALL VECTORS MOVED
0175 *
0176 * CONTENTS FROM TO FUNCTION
0177 * $F8A1 $FE40 $DFC0 USER-V
0178 * $F8A1 $FE42 $DFC2 SWI3-V
0179 * $F8A1 $FE44 $DFC4 SWI2-V
0180 * $F8A1 $FE46 $DFC6 FIRQ-V
0181 * $F8A1 $FE48 $DFC8 IRQ-V
0182 * $FAB0 $FE4A $DFCA SWI-V
0183 * $FFFF $FE4C $DFCC SVC-VO
0184 * $FFFF $FE4E $DFCE SVC-VL
0185 *
0186 F824 8E E0 00 LDX #ACIAS
0187 F827 BF DF E0 STX CPORT STORE ADDR. IN RAM
0188 F82A 17 01 5B LBSR XBKPNT CLEAR OUTSTANDING BREAKPOINTS
0189 F82D C6 0C LDB #12 CLEAR 12 BYTES ON STACK
0190 F82F 6F E2 CLRSTK CLR ,-S
0191 F831 5A DECB
0192 F832 26 FB BNE CLRSTK
0193 F834 30 8C DD LEAX MONITOR,PCR SET PC TO SBUG-E ENTRY
0194 F837 AF 6A STX 10,S ON STACK
0195 F839 86 D0 LDA #$D0 PRESET CONDITION CODES ON STACK
0196 F83B A7 E4 STA ,S
0197 F83D 1F 43 TFR S,U
0198 F83F 17 04 9F LBSR IOINIZ INITIALIZE CONTROL PORT
0199 F842 8E FE 84 LDX #MSG1 POINT TO MONITOR MESSAGE
0200 F845 17 03 47 LBSR PDATA PRINT MSG
0201 *
0202 IFD DATOPT
0203 F848 8E DF D0 LDX #LRARAM POINT TO LRA RAM STORAGE AREA
0204 F84B 4F CLRA START TOTAL AT ZERO
0205 F84C C6 0D LDB #13 TOTAL UP ALL ACTIVE RAM MEMORY
0206 F84E 6D 85 FNDREL TST B,X TEST FOR RAM AT NEXT LOC.
0207 F850 27 03 BEQ RELPAS IF NO RAM GO TO NEXT LOC.
0208 F852 8B 04 ADDA #4 ELSE ADD 4K TO TOTAL
0209 F854 19 DAA ADJ. TOTAL FOR DECIMAL
0210 F855 5A RELPAS DECB SUB. 1 FROM LOCS. TO TEST
0211 F856 2A F6 BPL FNDREL PRINT TOTAL OF RAM
0212 F858 17 04 0C LBSR OUT2H OUTPUT HEX BYTE AS ASCII
0213 F85B 8E FE A3 LDX #MSG2 POINT TO MSG 'K' CR/LF + 3 NULS
0214 F85E 17 03 2E LBSR PDATA PRINT MSG
0215 ENDIF DATOPT
0216 *
0217 IFD TRAOPT
0218 LBSR TRAINZ
0219 ENDIF TRAOPT
0219 ENDIF TRAOPT
0220 *
0221 ***** NEXTCMD *****
0222 *
0223 F861 8E FE AA NEXTCMD LDX #MSG3 POINT TO MSG ">"
0224 F864 17 02 B3 LBSR PSTRNG PRINT MSG
0225 F867 17 04 37 LBSR INCH GET ONE CHAR. FROM TERMINAL
0226 F86A 84 7F ANDA #$7F STRIP PARITY FROM CHAR.
0227 F86C 81 0D CMPA #$0D IS IT CARRIAGE RETURN ?
0228 F86E 27 F1 BEQ NEXTCMD IF CR THEN GET ANOTHER CHAR.
0229 F870 1F 89 TFR A,B PUT CHAR. IN "B" ACCUM.
0230 F872 81 20 CMPA #$20 IS IT CONTROL OR DATA CHAR ?
0231 F874 2C 09 BGE PRTCMD IF CMD CHAR IS DATA, PRNT IT
0232 F876 86 5E LDA #'^ ELSE CNTRL CHAR CMD SO...
0233 F878 17 04 53 LBSR OUTCH PRINT "^"
0234 F87B 1F 98 TFR B,A RECALL CNTRL CMD CHAR
0235 F87D 8B 40 ADDA #$40 CONVERT IT TO ASCII LETTER
0236 F87F 17 04 4C PRTCMD LBSR OUTCH PRNT CMD CHAR
0237 F882 17 04 47 LBSR OUT1S PRNT SPACE
0238 F885 C1 60 CMPB #$60
0239 F887 2F 02 BLE NXTCH0
0240 F889 C0 20 SUBB #$20
0241 *
0242 ***** DO TABLE LOOKUP *****
0243 * FOR COMMAND FUNCTIONS
0244 *
0245 F88B 8E FE 3B NXTCH0 LDX #JMPTAB POINT TO JUMP TABLE
0246 F88E E1 80 NXTCHR CMPB ,X+ DOES COMMAND MATCH TABLE ENTRY ?
0247 F890 27 0F BEQ JMPCMD BRANCH IF MATCH FOUND
0248 F892 30 02 LEAX 2,X POINT TO NEXT ENTRY IN TABLE
0249 F894 8C FE 74 CMPX #TABEND REACHED END OF TABLE YET ?
0250 F897 26 F5 BNE NXTCHR IF NOT END, CHECK NEXT ENTRY
0251 F899 8E FE AC LDX #MSG4 POINT TO MSG "WHAT?"
0252 F89C 17 02 F0 LBSR PDATA PRINT MSG
0253 F89F 20 C0 BRA NEXTCMD IF NO MATCH, PRMPT FOR NEW CMD
0254 F8A1 AD 94 JMPCMD JSR [,X] JUMP TO COMMAND ROUTINE
0255 F8A3 20 BC BRA NEXTCMD PROMPT FOR NEW COMMAND
0256 *
0257 * "G" GO OR CONTINUE
0258 *
0259 F8A5 1F 34 GO TFR U,S
0260 F8A7 3B RTI RTI
0261 *
0262 ***** "M" MEMORY EXAMINE AND CHANGE *****
0263 *
0264 F8A8 17 03 6B MEMCHG LBSR IN1ADR INPUT ADDRESS
0265 F8AB 29 2D BVS CHRTN IF NOT HEX, RETURN
0266 F8AD 1F 12 TFR X,Y SAVE ADDR IN "Y"
0267 F8AF 8E FE B2 MEMC2 LDX #MSG5 POINT TO MSG " - "
0268 F8B2 17 02 65 LBSR PSTRNG PRINT MSG
0269 F8B5 1F 21 TFR Y,X FETCH ADDRESS
0270 F8B7 17 03 A5 LBSR OUT4H PRINT ADDR IN HEX
0271 F8BA 17 04 0F LBSR OUT1S OUTPUT SPACE
0272 F8BD A6 A4 LDA ,Y GET CONTENTS OF CURRENT ADDR.
0273 F8BF 17 03 A5 LBSR OUT2H OUTPUT CONTENTS IN ASCII
0274 F8C2 17 04 07 LBSR OUT1S OUTPUT SPACE
0275 F8C5 17 03 5E LBSR BYTE LOOP WAITING FOR OPERATOR INPUT
0276 F8C8 28 11 BVC CHANGE IF VALID HEX GO CHANGE MEM. LOC.
0277 F8CA 81 08 CMPA #8 IS IT A BACKSPACE (CNTRL H)?
0278 F8CC 27 E1 BEQ MEMC2 PROMPT OPERATOR AGAIN
0279 F8CE 81 18 CMPA #$18 IS IT A CANCEL (CNTRL X)?
0280 F8D0 27 DD BEQ MEMC2 PROMPT OPERATOR AGAIN
0281 F8D2 81 5E CMPA #'^ IS IT AN UP ARROW?
0282 F8D4 27 17 BEQ BACK DISPLAY PREVIOUS BYTE
0283 F8D6 81 0D CMPA #$D IS IT A CR?
0284 F8D8 26 0F BNE FORWRD DISPLAY NEXT BYTE
0285 F8DA 39 CHRTN RTS EXIT ROUTINE
0286 *
0287 *
0288 F8DB A7 A4 CHANGE STA ,Y CHANGE BYTE IN MEMORY
0289 F8DD A1 A4 CMPA ,Y DID MEMORY BYTE CHANGE?
0290 F8DF 27 08 BEQ FORWRD $F972
0291 F8E1 17 03 E8 LBSR OUT1S OUTPUT SPACE
0292 F8E4 86 3F LDA #'? LOAD QUESTION MARK
0293 F8E6 17 03 E5 LBSR OUTCH PRINT IT
0294 F8E9 31 21 FORWRD LEAY 1,Y POINT TO NEXT HIGHER MEM LOCATION
0295 F8EB 20 C2 BRA MEMC2 PRINT LOCATION & CONTENTS
0296 F8ED 31 3F BACK LEAY -1,Y POINT TO LAST MEM LOCATION
0297 F8EF 20 BE BRA MEMC2 PRINT LOCATION & CONTENTS
0298 *
0299 * "S" DISPLAY STACK
0300 * HEX-ASCII DISPLAY OF CURRENT STACK CONTENTS FROM
0301 ** CURRENT STACK POINTER TO INTERNAL STACK LIMIT.
0302 *
0303 F8F1 17 02 A2 DISSTK LBSR PRTSP PRINT CURRENT STACK POINTER
0304 F8F4 1F 32 TFR U,Y
0305 F8F6 8E DF C0 LDX #STACK LOAD INTERNAL STACK AS UPPER LIMIT
0306 F8F9 30 1F LEAX -1,X POINT TO CURRENT STACK
0307 F8FB 20 05 BRA MDUMP1 ENTER MEMORY DUMP OF STACK CONTENTS
0308 *
0309 * "E" DUMP MEMORY FOR EXAMINE IN HEX AND ASCII
0310 * AFTER CALLING 'IN2ADR' LOWER ADDRESS IN Y-REG.
0311 * UPPER ADDRESS IN X-REG.
0312 * IF HEX ADDRESSES ARE INVALID (V)=1.
0313 *
0314 F8FD 17 03 0B MEMDUMP LBSR IN2ADR INPUT ADDRESS BOUNDRIES
0315 F900 29 06 BVS EDPRTN NEW COMMAND IF ILLEGAL HEX
0316 F902 34 20 MDUMP1 PSHS Y COMPARE LOWER TO UPPER BOUNDS
0317 F904 AC E1 CMPX ,S++ LOWER BOUNDS > UPPER BOUNDS?
0318 F906 24 01 BCC AJDUMP IF NOT, DUMP HEX AND ASCII
0319 F908 39 EDPRTN RTS ;
0320 *
0321 * ADJUST LOWER AND UPPER ADDRESS LIMITS
0322 * TO EVEN 16 BYTE BOUNDRIES.
0323 *
0324 * IF LOWER ADDR = $4532
0325 * LOWER BOUNDS WILL BE ADJUSTED TO = $4530.
0326 *
0327 * IF UPPER ADDR = $4567
0328 * UPPER BOUNDS WILL BE ADJUSTED TO = $4570.
0329 *
0330 * ENTER WITH LOWER ADDRESS IN X-REG.
0331 * -UPPER ADDRESS ON TOP OF STACK.
0332 *
0333 F909 1F 10 AJDUMP TFR X,D GET UPPER ADDR IN D-REG
0334 F90B C3 00 10 ADDD #$10 ADD 16 TO UPPER ADDRESS
0335 F90E C4 F0 ANDB #$F0 MASK TO EVEN 16 BYTE BOUNDRY
0336 F910 34 06 PSHS A,B SAVE ON STACK AS UPPER DUMP LIMIT
0337 F912 1F 20 TFR Y,D $F9A5 GET LOWER ADDRESS IN D-REG
0338 F914 C4 F0 ANDB #$F0 MASK TO EVEN 16 BYTE BOUNDRY
0339 F916 1F 01 TFR D,X PUT IN X-REG AS LOWER DUMP LIMIT
0340 F918 AC E4 NXTLIN CMPX ,S COMPARE LOWER TO UPPER LIMIT
0341 F91A 27 05 BEQ SKPDMP IF EQUAL SKIP HEX-ASCII DUMP
0342 F91C 17 03 9A LBSR INCHEK CHECK FOR INPUT FROM KEYBOARD
0343 F91F 27 03 BEQ EDUMP
0344 F921 32 62 SKPDMP LEAS 2,S READJUST STACK IF NOT DUMPING
0345 F923 39 RTS ;
0346 *
0347 * PRINT 16 HEX BYTES FOLLOWED BY 16 ASCII CHARACTERS
0348 * FOR EACH LINE THROUGHOUT ADDRESS LIMITS.
0349 *
0350 F924 34 10 EDUMP PSHS X PUSH LOWER ADDR LIMIT ON STACK
0351 F926 8E FE B2 LDX #MSG5 POINT TO MSG " - "
0352 F929 17 01 EE LBSR PSTRNG PRINT MSG
0353 F92C AE E4 LDX ,S LOAD LOWER ADDR FROM TOP OF STACK
0354 F92E 17 03 2E LBSR OUT4H PRINT THE ADDRESS
0355 F931 17 03 96 LBSR OUT2S 2 SPACES
0356 F934 C6 10 LDB #$10 LOAD COUNT OF 16 BYTES TO DUMP
0357 F936 A6 80 ELOOP LDA ,X+ GET FROM MEMORY HEX BYTE TO PRINT
0358 F938 17 03 2C LBSR OUT2H OUTPUT HEX BYTE AS ASCII
0359 F93B 17 03 8E LBSR OUT1S OUTPUT SPACE
0360 F93E 5A DECB $F9D1 DECREMENT BYTE COUNT
0361 F93F 26 F5 BNE ELOOP CONTINUE TIL 16 HEX BYTES PRINTED
0362 *
0363 * PRINT 16 ASCII CHARACTERS
0364 * IF NOT PRINTABLE OR NOT VALID
0365 * ASCII PRINT A PERIOD (.)
0366 F941 17 03 86 LBSR OUT2S 2 SPACES
0367 F944 AE E1 LDX ,S++ GET LOW LIMIT FRM STACK - ADJ STACK
0368 F946 C6 10 LDB #$10 SET ASCII CHAR TO PRINT = 16
0369 F948 A6 80 EDPASC LDA ,X+ GET CHARACTER FROM MEMORY
0370 F94A 81 20 CMPA #$20 IF LESS THAN $20, NON-PRINTABLE?
0371 F94C 25 04 BCS PERIOD IF SO, PRINT PERIOD INSTEAD
0372 F94E 81 7E CMPA #$7E IS IT VALID ASCII?
0373 F950 23 02 BLS PRASC IF SO PRINT IT
0374 F952 86 2E PERIOD LDA #'. LOAD A PERIOD (.)
0375 F954 17 03 77 PRASC LBSR OUTCH PRINT ASCII CHARACTER
0376 F957 5A DECB DECREMENT COUNT
0377 F958 26 EE BNE EDPASC
0378 F95A 20 BC BRA NXTLIN
0379 *
0380 ***** "B" SET BREAKPOINT *****
0381 *
0382 F95C 17 02 B7 BRKPNT LBSR IN1ADR GET BREAKPOINT ADDRESS
0383 F95F 29 1E BVS EXITBP EXIT IF INVALID HEX ADDR.
0384 F961 8C DF C0 CMPX #STACK ADDRESS ILLEGAL IF >=$DFC0
0385 F964 24 1A BCC BPERR IF ERROR PRINT (?), EXIT
0386 F966 34 10 PSHS X $FA82 PUSH BP ADDRESS ON STACK
0387 F968 8E FF FF LDX #$FFFF LOAD DUMMY ADDR TO TEST BP TABLE
0388 F96B 8D 55 BSR BPTEST TEST BP TABLE FOR FREE SPACE
0389 F96D 35 10 PULS X POP BP ADDRESS FROM STACK
0390 F96F 27 0F BEQ BPERR (Z) SET, OUT OF BP TABLE SPACE
0391 F971 A6 84 LDA ,X GET DATA AT BREAKPOINT ADDRESS
0392 F973 81 3F CMPA #$3F IS IT A SWI?
0393 F975 27 09 BEQ BPERR IF SWI ALREADY, INDICATE ERROR
0394 F977 A7 A0 STA ,Y+ SAVE DATA BYTE IN BP TABLE
0395 F979 AF A4 STX ,Y SAVE BP ADDRESS IN BP TABLE
0396 F97B 86 3F LDA #$3F LOAD A SWI ($3F)
0397 F97D A7 84 STA ,X SAVE SWI AT BREAKPOINT ADDRESS
0398 F97F 39 EXITBP RTS ;
0399 *
0400 * INDICATE ERROR SETTING BREAKPOINT
0401 *
0402 F980 17 03 49 BPERR LBSR OUT1S OUTPUT SPACE
0403 F983 86 3F LDA #'? LOAD (?), INDICATE BREAKPOINT ERROR
0404 F985 16 03 46 LBRA OUTCH PRINT "?"
0405 *
0406 *** "X" CLEAR OUTSTANDING BREAKPOINTS ***
0407 *
0408 F988 10 8E DF E3 XBKPNT LDY #BPTBL POINT TO BREAKPOINT TABLE
0409 F98C C6 08 LDB #8 LOAD BREAKPOINT COUNTER
0410 F98E 8D 18 XBPLP BSR RPLSWI REMOVE USED ENTRY IN BP TABLE
0411 F990 5A DECB $FAAC DECREMENT BP COUNTER
0412 F991 26 FB BNE XBPLP END OF BREAKPOINT TABLE?
0413 F993 39 RTS
0414 *
0415 ***** SWI ENTRY POINT *****
0416 *
0417 F994 1F 43 SWIE TFR S,U TRANSFER STACK TO USER POINTER
0418 F996 AE 4A LDX 10,U LOAD PC FROM STACK INTO X-REG
0419 F998 30 1F LEAX -1,X ADJUST ADDR DOWN 1 BYTE.
0420 F99A 8D 26 BSR BPTEST FIND BREAKPOINT IN BP TABLE
0421 F99C 27 04 BEQ REGPR IF FOUND, REPLACE DATA AT BP ADDR
0422 F99E AF 4A STX 10,U SAVE BREAKPOINT ADDR IN STACK
0423 F9A0 8D 06 BSR RPLSWI GO REPLACE SWI WITH ORIGINAL DATA
0424 F9A2 17 02 48 REGPR LBSR REGSTR GO PRINT REGISTERS
0425 *
0426 IFD TRAOPT
0427 LDX #0
0428 STX TRACNT
0429 ENDIF TRAOPT
0429 ENDIF TRAOPT
0430 *
0431 F9A5 16 FE B9 LBRA NEXTCMD GET NEXT COMMAND
0432 *
0433 F9A8 AE 21 RPLSWI LDX 1,Y LOAD BP ADDRESS FROM BP TABLE
0434 F9AA 8C DF C0 CMPX #STACK COMPARE TO TOP AVAILABLE USER MEMORY
0435 F9AD 24 0A BCC FFSTBL GO RESET TABLE ENTRY TO $FF'S
0436 F9AF A6 84 LDA ,X GET DATA FROM BP ADDRESS
0437 F9B1 81 3F CMPA #$3F IS IT SWI?
0438 F9B3 26 04 BNE FFSTBL IF NOT, RESET TABLE ENTRY TO $FF'S
0439 F9B5 A6 A4 LDA ,Y GET ORIGINAL DATA FROM BP TABLE
0440 F9B7 A7 84 STA ,X $FAD3 RESTORE DATA AT BP ADDRESS
0441 F9B9 86 FF FFSTBL LDA #$FF LOAD $FF IN A-ACC
0442 F9BB A7 A0 STA ,Y+ RESET BREAKPOINT TABLE DATA TO $FF'S
0443 F9BD A7 A0 STA ,Y+ RESET BREAKPOINT TABLE ADDR TO $FF'S
0444 F9BF A7 A0 STA ,Y+
0445 F9C1 39 RTS
0446 *
0447 ** SEARCH BREAKPOINT TABLE FOR MATCH **
0448 *
0449 F9C2 10 8E DF E3 BPTEST LDY #BPTBL POINT TO BREAKPOINT TABLE
0450 F9C6 C6 08 LDB #8 LOAD BREAKPOINT COUNTER
0451 F9C8 A6 A0 FNDBP LDA ,Y+ LOAD DATA BYTE
0452 F9CA AC A1 CMPX ,Y++ COMPARE ADDRESS, IS IT SAME?
0453 F9CC 27 04 BEQ BPADJ IF SO, ADJUST POINTER FOR TABLE ENTRY
0454 F9CE 5A DECB IF NOT, DECREMENT BREAKPOINT COUNTER
0455 F9CF 26 F7 BNE FNDBP AND LOOK FOR NEXT POSSIBLE MATCH
0456 F9D1 39 RTS ;
0457 *
0458 *
0459 F9D2 31 3D BPADJ LEAY -3,Y MOVE POINTER TO BEGIN OF BP ENTRY
0460 F9D4 39 RTS
0461 *
0462 IFD TRAOPT
0463 *
0464 ** TRACE from address AAAA BB bytes
0465 *
0466 TRACE LBSR ALTPC1 SET UP NEW PC
0467 BVS TREXIT ADDRESS ERROR, EXIT
0468 LBSR OUT1S
0469 LBSR IN1ADR Fetch Byte Count
0470 BVS TREXIT Byte Count error, EXIT
0471 STX TRACNT
0472 *
0473 LDX NMI Save NMI Vector
0474 STX NMISAV
0475 LDX #NMIE Set up NMI for Tracing
0476 STX NMI
0477 LBSR TRAINZ Initialise Hardware
0478 BRA TRACEG Start Trace
0479 TREXIT RTS
0480 *
0481 * CRA0 = 0 CA1 IRQ DISAB, CRA0 = 1 CA1 IRQ ENAB
0482 * CRA1 = 1 CA1 Rising edge IRQ
0483 * CRA2 = 0 TADATA = Data Direction, CRA2 = 1 TADATA = I/O Register
0484 * CRA3 = 0 CA2 = 0 output, CRA3 = 1 CA2 = 1
0485 * CRA4 = 1 ] CA2 = Set/Reset output
0486 * CRA5 = 1 ]
0487 * CRA6 = X CA2 Input Interrupt Flag
0488 * CRA7 = X CA1 Interrupt Flag
0489 *
0490 * CRB0 = 0 CB1 IRQ DISAB, CRB0 = 1 CA1 IRQ ENAB
0491 * CRB1 = 1 CB1 Rising edge IRQ
0492 * CRB2 = 0 TBDATA = Data Direction, CRB2 = 1 TBDATA = I/O Register
0493 * CRB3 = 0 CB2 = 0 output, CRB3 = 1 CB2 = 1
0494 * CRB4 = 1 ] CB2 = Set/Reset output
0495 * CRB5 = 1 ]
0496 * CRB6 = X CB2 Input Interrupt Flag
0497 * CRB7 = X CB1 Interrupt Flag
0498 *
0499 *
0500 ** TRACE NMI ENTRY POINT
0501 *
0502 NMIE TFR S,U
0503 LDA #$36 Disable Interrupt, CA2 Low
0504 STA TACTRL
0505 LDA TADATA Clear Interrupt flag by reading data port
0506 *
0507 LBSR REGSTR DUMP REGISTERS
0508 *
0509 LDX 10,U TEST IF NEXT INSTRUCTION IS A SWI
0510 LDA ,X
0511 CMPA #$3F
0512 BEQ TRACEX EXIT ON SWI
0513 *
0514 LDX TRACNT CHECK IF TRACE COUNT EXPIRED
0515 BEQ TRACEX YES, GO BACK TO THE MONITOR
0516 LEAX -1,X DECREMENT TRACE COUNT
0517 STX TRACNT
0518 *
0519 ** TRACE GO (RESUME SINGLE STEP)
0520 *
0521 TRACEG TFR U,S SET UP PROGRAM STACK POINTER
0522 LDA #TRADEL SET UP TIMER DELAY (NUMB CYCLES FOR RTI+1)
0523 STA TADATA
0524 LDA #$36 LOAD STROBE LOW
0525 STA TACTRL
0526 LDA TADATA CLEAR INTERRUPT
0527 LDA #$36 RELEASE RESET
0528 STA TBCTRL
0529 LDA #$3F RELEASE LOAD, ENABLE CA1 NMI, CA1 RISING EDGE
0530 STA TACTRL
0531 RTI GO EXECUTE INSTRUCTION
0532 *
0533 TRACEX LDX NMISAV Restore NMI vector
0534 STX NMI
0535 LBRA NEXTCMD Jump back to the command loop.
0536 *
0537 ** TRACE HARDWARE INITIALISATION
0538 *
0539 TRAINZ LDA #$32 SELECT DDRA, CA2 LOW, NMI DISABLED
0540 STA TACTRL
0541 LDA #$3A SELECT DDRB, CB2 HIGH, FIRQ DISABLED
0542 STA TBCTRL
0543 LDA #$FF PORTA = OUTPUT
0544 STA TADATA
0545 LDA #$00 PORTB = INPUT
0546 STA TBDATA
0547 LDA #$36 SELECT OUTPUT REGISTER A, CA2 LOW
0548 STA TACTRL
0549 LDA #$3E SELECT OUTPUT REGISTER B, CB2 HIGH
0550 STA TBCTRL
0551 RTS
0552 *
0553 ENDIF TRAOPT
0553 ENDIF TRAOPT
0554 IFD MFDCOPT
0555 *
0556 ** "U" MINI DISK BOOT
0557 *
0558 MINBOOT TST CMDFDC
0559 CLR DRVFDC
0560 LDX #$0000
0561 LOOP LEAX $01,X
0562 CMPX #$0000
0563 BNE LOOP
0564 LDA #$0F
0565 STA CMDFDC
0566 BSR DELAY
0567 LOOP1 LDB CMDFDC
0568 BITB #$01
0569 BNE LOOP1
0570 LDA #$01
0571 STA SECFDC
0572 BSR DELAY
0573 LDA #$8C
0574 STA CMDFDC
0575 BSR DELAY
0576 LDX #$C000
0577 BRA LOOP3
0578 LOOP2 BITB #$02
0579 BEQ LOOP3
0580 LDA DATFDC
0581 STA ,X+
0582 LOOP3 LDB CMDFDC
0583 BITB #$01
0584 BNE LOOP2
0585 BITB #$2C
0586 BEQ LOOP4
0587 RTS
0588 *
0589 LOOP4 LDX #$C000
0590 STX $0A,U
0591 TFR U,S
0592 RTI
0593 *
0594 DELAY LDB #$04
0595 LOOP5 DECB
0596 BNE LOOP5
0597 RTS
0598 ENDIF MFDCOPT
0598 ENDIF MFDCOPT
0599 *
0600 IFD DMAFOPT
0601 *
0602 *** "D" DISK BOOT FOR DMAF2 ***
0603 *
0604 DBOOT LDA #$DE
0605 STA DRVREG
0606 LDA #$FF
0607 STA PRIREG $FAF8
0608 STA CCREG
0609 STA AAAREG
0610 STA BBBREG
0611 TST CCREG
0612 LDA #$D8
0613 STA COMREG
0614 LBSR DLY
0615 DBOOT0 LDA COMREG
0616 BMI DBOOT0
0617 LDA #$09
0618 STA COMREG
0619 LBSR DLY
0620 *
0621 DISKWT LDA COMREG FETCH DRIVE STATUS
0622 BITA #1 TEST BUSY BIT
0623 BNE DISKWT LOOP UNTIL NOT BUSY
0624 *
0625 BITA #$10
0626 BNE DBOOT
0627 *
0628 LDX #$C000 LOGICAL ADDR. = $C000
0629 BSR LRA GET 20 BIT PHYSICAL ADDR. OF LOG. ADDR.
0630 ORA #$10
0631 STA CCCREG
0632 TFR X,D
0633 COMA ;
0634 COMB ;
0635 STD ADDREG
0636 LDX #$FEFF LOAD DMA BYTE COUNT = $100
0637 STX CNTREG STORE IN COUNT REGISTER
0638 LDA #$FF LOAD THE CHANNEL REGISTER
0639 STA CCREG
0640 LDA #$FE SET CHANNEL 0
0641 STA PRIREG
0642 LDA #1 SET SECTOR TO "1"
0643 STA SECREG ISSUE COMMAND
0644 LDA #$8C SET SINGLE SECTOR READ
0645 STA COMREG ISSUE COMMAND
0646 BSR DLY
0647 *
0648 * THE FOLLOWING CODE TESTS THE STATUS OF THE
0649 * CHANNEL CONTROL REGISTER. IF "D7" IS NOT
0650 * ZERO THEN IT WILL LOOP WAITING FOR "D7"
0651 * TO GO TO ZERO. IF AFTER 65,536 TRIES IT
0652 * IS STILL A ONE THE BOOT OPERATION WILL
0653 * BE STARTED OVER FROM THE BEGINING.
0654 *
0655 CLRB ;
0656 DBOOT1 PSHS B $FB55
0657 CLRB ;
0658 DBOOT2 TST CCREG
0659 BPL DBOOT3
0660 DECB ;
0661 BNE DBOOT2
0662 PULS B
0663 DECB
0664 BNE DBOOT1
0665 BRA DBOOT
0666 DBOOT3 PULS B
0667 LDA COMREG
0668 BITA #$1C
0669 BEQ DBOOT4
0670 RTS ;
0671 *
0672 *
0673 DBOOT4 LDB #$DE
0674 STB DRVREG
0675 LDX #$C000
0676 STX 10,U
0677 TFR U,S $FB7B
0678 RTI ;
0679 ENDIF DMAFOPT
0679 ENDIF DMAFOPT
0680 *
0681 IFD CF8OPT
0682 *
0683 * COMPACT FLASH BOOT
0684 *
0685 CFBOOT BSR WAITRDY
0686 LDA #HEADLBA
0687 STA CF_HEAD
0688 BSR WAITRDY
0689 LDA #FEAT8BIT
0690 STA CF_FEATURE
0691 LDA #CMDFEATURE
0692 STA CF_COMAND
0693 BSR WAITRDY
0694 *
0695 * READ SECTORS FROM CF
0696 *
0697 CFREAD LDA #$01
0698 STA CF_SECCNT
0699 CLRA
0700 STA CF_SECNUM
0701 STA CF_CYLLO
0702 STA CF_CYLHI
0703 *
0704 LDA #CMDREAD ; IDE READ MULTIPLE
0705 STA CF_COMAND
0706 BSR WAITRDY
0707 LDX #$C000
0708 *
0709 * READ LOOP
0710 *
0711 RDLOOP BSR WAITDRQ
0712 LDA CF_DATA
0713 STA ,X+
0714 CMPX #$C200
0715 BNE RDLOOP
0716 *
0717 LDX #$C000
0718 STX $0A,U
0719 TFR U,S
0720 RTI
0721 *
0722 * WAIT UNTIL READY
0723 *
0724 WAITRDY LDA CF_STATUS
0725 BITA #BUSY
0726 BNE WAITRDY
0727 LDA CF_STATUS
0728 BITA #DRDY
0729 BEQ WAITRDY
0730 RTS
0731 *
0732 * WAIT FOR DATA REQUEST
0733 *
0734 WAITDRQ LDA CF_STATUS
0735 BITA #DRQ
0736 BEQ WAITDRQ
0737 RTS
0738 ENDIF CF8OPT
0738 ENDIF CF8OPT
0739 *
0740 IFD IDEOPT
0741 *
0742 * XESS 16 BIT IDE BOOT
0743 *
0744 F9D5 CC 00 06 IDEBOOT LDD #AUXRESET
0745 F9D8 FD E1 1E STD CF_AUX
0746 F9DB CC 00 02 LDD #AUXRSTREL
0747 F9DE FD E1 1E STD CF_AUX
0748 F9E1 CC 00 E0 LDD #HEADLBA
0749 F9E4 FD E1 0C STD CF_HEAD
0750 F9E7 8D 2E BSR WAITRDY
0751 *
0752 * READ SECTORS FROM CF
0753 *
0754 F9E9 CC 00 01 LDD #$01
0755 F9EC FD E1 04 STD CF_SECCNT
0756 F9EF 5F CLRB
0757 F9F0 FD E1 06 STD CF_SECNUM
0758 F9F3 FD E1 08 STD CF_CYLLO
0759 F9F6 FD E1 0A STD CF_CYLHI
0760 *
0761 F9F9 C6 20 LDB #CMDREAD ; IDE READ MULTIPLE
0762 F9FB FD E1 0E STD CF_COMAND
0763 F9FE 8D 17 BSR WAITRDY
0764 FA00 8E C0 00 LDX #$C000
0765 *
0766 * READ LOOP
0767 *
0768 FA03 8D 21 RDLOOP BSR WAITDRQ
0769 FA05 FC E1 00 LDD CF_DATA
0770 FA08 E7 80 STB ,X+
0771 FA0A 8C C1 00 CMPX #$C100
0772 FA0D 26 F4 BNE RDLOOP
0773 *
0774 FA0F 8E C0 00 LDX #$C000
0775 FA12 AF 4A STX $0A,U
0776 FA14 1F 34 TFR U,S
0777 FA16 3B RTI
0778 *
0779 * WAIT UNTIL READY
0780 *
0781 FA17 FC E1 0E WAITRDY LDD CF_STATUS
0782 FA1A C5 80 BITB #BUSY
0783 FA1C 26 F9 BNE WAITRDY
0784 FA1E FC E1 0E LDD CF_STATUS
0785 FA21 C5 40 BITB #DRDY
0786 FA23 27 F2 BEQ WAITRDY
0787 FA25 39 RTS
0788 *
0789 * WAIT FOR DATA REQUEST
0790 *
0791 FA26 FC E1 0E WAITDRQ LDD CF_STATUS
0792 FA29 C5 08 BITB #DRQ
0793 FA2B 27 F9 BEQ WAITDRQ
0794 FA2D 39 RTS
0795 ENDIF IDEOPT
0796 *
0797 IFD RTCOPT
0798 *
0799 * CLOCK INTER FACE UTILITY
0800 *
0801 * TIME <Hours> <Minuits> <Seconds>
0802 * If no argument is specified, the current time
0803 * will be displayed.
0804 *
0805 * READ A REGISTER FROM THE COUNTER.
0806 * The X Index rgister points to the register
0807 * to be read. The Status Register is checked
0808 * before and after the register is read before
0809 * returning a value in accumulator A
0810 *
0811 RDCLK TST CLKSTA
0812 BNE RDCLK
0813 RDCLK1 LDA 0,X
0814 TST CLKSTA
0815 BNE RDCLK1
0816 RTS
0817 *
0818 * MAIN PROGRAM:
0819 *
0820 TIMSET LDX #COUNTR POINT TO TIMER
0821 LBSR BYTE READ HOURS
0822 BVS SHOWTM NO ARG, DISP TIME
0823 STA HOUR,X
0824 LBSR OUT1S
0825 LBSR BYTE READ MINUITES
0826 BVS SHOWTM
0827 STA MINUIT,X
0828 LBSR OUT1S
0829 LBSR BYTE SECONDS.
0830 BVS SHOWTM
0831 STA SECOND,X
0832 *
0833 * DISPLAY CURRENT TIME
0834 *
0835 SHOWTM LBSR PCRLF
0836 LDX #COUNTR+HOUR
0837 LDB #3
0838 SHOWLP BSR RDCLK
0839 LBSR OUT2H
0840 LDA #':
0841 LBSR OUTCH
0842 LEAX -1,X
0843 DECB
0844 BNE SHOWLP
0845 RTS
0846 *
0847 * INITIATE CLOCK.
0848 * MASK INTERRUPTS.
0849 *
0850 CLKINZ CLR CINTCR MASK ALL INTERRUPTS
0851 TST CINTSR CLEAR ANY INTERRUPTS
0852 RTS
0853 ENDIF RTCOPT
0853 ENDIF RTCOPT
0854 IFD DATOPT
0855 *
0856 ***** LRA LOAD REAL ADDRESS *****
0857 *
0858 * THE FOLLOWING CODE LOADS THE 20-BIT
0859 * PHYSICAL ADDRESS OF A MEMORY BYTE
0860 * INTO THE "A" AND "X" REGISTERS. THIS
0861 * ROUTINE IS ENTERED WITH THE LOGICAL
0862 * ADDRESS OF A MEMORY BYTE IN THE "IX"
0863 * REGISTER. EXIT IS MADE WITH THE HIGH-
0864 * ORDER FOUR BITS OF THE 20-BIT PHYSICAL
0865 * ADDRESS IN THE "A" REGISTER, AND THE
0866 * LOW-ORDER 16-BITS OF THE 20-BIT
0867 * PHYSICAL ADDRESS IN THE "IX" REGISTER.
0868 * ALL OTHER REGISTERS ARE PRESERVED.
0869 * THIS ROUTINE IS REQUIRED SINCE THE
0870 * DMAF1 AND DMAF2 DISK CONTROLLERS MUST
0871 * PRESENT PHYSICAL ADDRESSES ON THE
0872 * SYSTEM BUS.
0873 *
0874 FA2E 34 36 LRA PSHS A,B,X,Y PUSH REGISTERS ON STACK
0875 FA30 A6 62 LDA 2,S GET MSB LOGICAL ADDR FRM X REG ON STACK
0876 FA32 44 LSRA ;
0877 FA33 44 LSRA ADJ FOR INDEXED INTO
0878 FA34 44 LSRA CORRESPONDING LOCATION
0879 FA35 44 LSRA IN LRA TABLE
0880 FA36 10 8E DF D0 LDY #LRARAM LOAD LRA TABLE BASE ADDRESS
0881 FA3A E6 A6 LDB A,Y GET PHYSICAL ADDR. DATA FROM LRA TABLE
0882 FA3C 54 LSRB ADJ. REAL ADDR. TO REFLECT EXTENDED
0883 FA3D 54 LSRB PHYSICAL ADDRESS.
0884 FA3E 54 LSRB EXTENDED MS 4-BITS ARE RETURNED
0885 FA3F 54 LSRB IN THE "A" ACCUMULATOR
0886 FA40 E7 E4 STB ,S MS 4 BITS IN A ACCUM. STORED ON STACK
0887 FA42 E6 A6 LDB A,Y LOAD REAL ADDRESS DATA FROM LRA TABLE
0888 FA44 53 COMB COMP TO ADJ FOR PHYSICAL ADDR. IN X REG
0889 FA45 58 ASLB ADJ DATA FOR RELOCATION IN X REG
0890 FA46 58 ASLB ;
0891 FA47 58 ASLB $FB97
0892 FA48 58 ASLB ;
0893 FA49 A6 62 LDA 2,S GET MS BYTE OF LOGICAL ADDR.
0894 FA4B 84 0F ANDA #$0F MASK MS NIBBLE OF LOGICAL ADDRESS
0895 FA4D A7 62 STA 2,S SAVE IT IN X REG ON STACK
0896 FA4F EA 62 ORB 2,S SET MS BYTE IN X REG TO ADJ PHY ADDR.
0897 *
0898 * PLUS LS NIBBLE OF LOGICAL ADDRESS
0899 FA51 E7 62 STB 2,S SAVE AS LS 16 BITS OF PHY ADDR IN X REG
0900 * ON STACK
0901 FA53 35 B6 PULS A,B,X,Y,PC POP REGS. FROM STACK
0902 ENDIF DATOPT
0903 *
0904 * DELAY LOOP
0905 *
0906 FA55 34 04 DLY PSHS B SAVE CONTENTS OF "B"
0907 FA57 C6 20 LDB #$20 GET LOOP DELAY VALUE
0908 FA59 5A SUB1 DECB SUBTRACT ONE FROM VALUE
0909 FA5A 26 FD BNE SUB1 LOOP UNTIL ZERO
0910 FA5C 35 84 PULS B,PC RESTORE CONTENTS OF "B"
0911 * RTS ;
0912 *
0913 ***** "L" LOAD MIKBUG TAPE *****
0914 *
0915 FA5E BD FC E3 LOAD JSR ACINIZ
0916 FA61 86 11 LDA #$11 LOAD 'DC1' CASS. READ ON CODE
0917 FA63 17 02 68 LBSR OUTCH OUTPUT IT TO TERMINAL PORT
0918 FA66 7F DF E2 CLR ECHO TURN OFF ECHO FLAG
0919 FA69 17 02 2A LOAD1 LBSR ECHON INPUT 8 BIT BYTE WITH NO ECHO
0920 FA6C 81 53 LOAD2 CMPA #'S IS IT AN "S", START CHARACTER ?
0921 FA6E 26 F9 BNE LOAD1 IF NOT, DISCARD AND GET NEXT CHAR.
0922 FA70 17 02 23 LBSR ECHON
0923 FA73 81 39 CMPA #'9 IS IT A "9" , END OF FILE CHAR ?
0924 FA75 27 3D BEQ LOAD21 IF SO, EXIT LOAD
0925 FA77 81 31 CMPA #'1 IS IT A "1" , FILE LOAD CHAR ?
0926 FA79 26 F1 BNE LOAD2 IF NOT, LOOK FOR START CHAR.
0927 FA7B 17 01 A8 LBSR BYTE INPUT BYTE COUNT
0928 FA7E 34 02 PSHS A PUSH COUNT ON STACK
0929 FA80 29 26 BVS LODERR (V) C-CODE SET, ILLEGAL HEX
0930 FA82 17 01 91 LBSR IN1ADR INPUT LOAD ADDRESS
0931 FA85 29 21 BVS LODERR (V) C-CODE SET, ADDR NOT HEX
0932 FA87 34 10 PSHS X PUSH ADDR ON STACK
0933 FA89 E6 E0 LDB ,S+ LOAD MSB OF ADDR AS CHECKSUM BYTE
0934 FA8B EB E0 ADDB ,S+ ADD LSB OF ADDR TO CHECKSUM
0935 FA8D EB E4 ADDB ,S ADD BYTE COUNT BYTE TO CHECKSUM
0936 FA8F 6A E4 DEC ,S $FC37 DECREMENT BYTE COUNT 2 TO BYPASS
0937 FA91 6A E4 DEC ,S ADDRESS BYTES.
0938 FA93 34 04 LOAD10 PSHS B PUSH CHECKSUM ON STACK
0939 FA95 17 01 8E LBSR BYTE INPUT DATA BYTE (2 HEX CHAR)
0940 FA98 35 04 PULS B POP CHECKSUM FROM STACK
0941 FA9A 29 0C BVS LODERR (V) SET, DATA BYTE NOT HEX
0942 FA9C 34 02 PSHS A PUSH DATA BYTE ON STACK
0943 FA9E EB E0 ADDB ,S+ ADD DATA TO CHECKSUM, AUTO INC STACK
0944 FAA0 6A E4 DEC ,S DECREMENT BYTE COUNT 1
0945 FAA2 27 05 BEQ LOAD16 IF BYTE COUNT ZERO, TEST CHECKSUM
0946 FAA4 A7 80 STA ,X+ SAVE DATA BYTE IN MEMORY
0947 FAA6 20 EB BRA LOAD10 GET NEXT DATA BYTE
0948 FAA8 5F LODERR CLRB ;ERROR CONDITION, ZERO CHECKSUM ;
0949 FAA9 35 02 LOAD16 PULS A ADJUST STACK (REMOVE BYTE COUNT)
0950 FAAB C1 FF CMPB #$FF CHECKSUM OK?
0951 FAAD 27 BA BEQ LOAD1 IF SO, LOAD NEXT LINE
0952 FAAF 86 3F LDA #'? LOAD (?) ERROR INDICATOR
0953 FAB1 17 02 1A LBSR OUTCH OUTPUT IT TO TERMINAL
0954 FAB4 73 DF E2 LOAD21 COM ECHO TURN ECHO ON
0955 FAB7 86 13 LDA #$13 $FC5F LOAD 'DC3' CASS. READ OFF CODE
0956 FAB9 16 02 12 LBRA OUTCH OUTPUT IT
0957 *
0958 ***** "P" PUNCH MIKBUG TAPE *****
0959 *
0960 FABC 6F E2 PUNCH CLR ,-S CLEAR RESERVED BYTE ON STACK
0961 FABE 17 01 4A LBSR IN2ADR GET BEGIN AND END ADDRESS
0962 FAC1 34 30 PSHS X,Y SAVE ADDRESSES ON STACK
0963 FAC3 29 4D BVS PUNEXT (V) C-CODE SET, EXIT PUNCH
0964 FAC5 AC 62 CMPX 2,S COMPARE BEGIN TO END ADDR
0965 FAC7 25 49 BCS PUNEXT IF BEGIN GREATER THAN END, EXIT PUNCH
0966 FAC9 30 01 LEAX 1,X INCREMENT END ADDRESS
0967 FACB AF E4 STX ,S STORE END ADDR ON STACK
0968 FACD BD FC E3 JSR ACINIZ
0969 FAD0 86 12 LDA #$12 LOAD 'DC2' PUNCH ON CODE
0970 FAD2 17 01 F9 LBSR OUTCH OUTPUT IT TO TERMINAL
0971 FAD5 EC E4 PUNCH2 LDD ,S LOAD END ADDR IN D-ACC
0972 FAD7 A3 62 SUBD 2,S SUBTRACT BEGIN FROM END
0973 FAD9 27 06 BEQ PUNCH3 SAME, PUNCH 32 BYTES DEFAULT
0974 FADB 10 83 00 20 CMPD #$20 LESS THAN 32 BYTES?
0975 FADF 23 02 BLS PUNCH4 PUNCH THAT MANY BYTES
0976 FAE1 C6 20 PUNCH3 LDB #$20 LOAD BYTE COUNT OF 32.
0977 FAE3 E7 64 PUNCH4 STB 4,S STORE ON STACK AS BYTE COUNT
0978 FAE5 8E FE F3 LDX #MSG20 POINT TO MSG "S1"
0979 FAE8 17 00 2F LBSR PSTRNG PRINT MSG
0980 FAEB CB 03 ADDB #3 ADD 3 BYTES TO BYTE COUNT
0981 FAED 1F 98 TFR B,A GET BYTE COUNT IN A-ACC TO PUNCH
0982 FAEF 17 01 75 LBSR OUT2H OUTPUT BYTE COUNT
0983 FAF2 AE 62 LDX 2,S LOAD BEGIN ADDRESS
0984 FAF4 17 01 68 LBSR OUT4H PUNCH ADDRESS
0985 FAF7 EB 62 ADDB 2,S ADD ADDR MSB TO CHECKSUM
0986 FAF9 EB 63 ADDB 3,S ADD ADDR LSB TO CHECKSUM
0987 FAFB EB 84 PUNCHL ADDB ,X ADD DATA BYTE TO CHECKSUM
0988 FAFD A6 80 LDA ,X+ LOAD DATA BYTE TO PUNCH
0989 FAFF 17 01 65 LBSR OUT2H OUTPUT DATA BYTE
0990 FB02 6A 64 DEC 4,S DECREMENT BYTE COUNT
0991 FB04 26 F5 BNE PUNCHL NOT DONE, PUNCH NEXT BYTE
0992 FB06 53 COMB 1's COMPLIMENT CHECKSUM BYTE
0993 FB07 1F 98 TFR B,A GET IT IN A-ACC TO PUNCH
0994 FB09 17 01 5B LBSR OUT2H OUTPUT CHECKSUM BYTE
0995 FB0C AF 62 STX 2,S SAVE X-REG IN STACK AS NEW PUNCH ADDR
0996 FB0E AC E4 CMPX ,S COMPARE IT TO END ADDR
0997 FB10 26 C3 BNE PUNCH2 $FCB5 PUNCH NOT DONE, CONT.
0998 FB12 86 14 PUNEXT LDA #$14 LOAD 'DC4' PUNCH OFF CODE
0999 FB14 17 01 B7 LBSR OUTCH OUTPUT IT
1000 FB17 32 65 LEAS 5,S READJUST STACK POINTER
1001 FB19 39 RTS ;
1002 *
1003 * PRINT STRING PRECEEDED BY A CR & LF.
1004 *
1005 FB1A 8D 02 PSTRNG BSR PCRLF PRINT CR/LF
1006 FB1C 20 71 BRA PDATA PRINT STRING POINTED TO BY IX
1007 *
1008 * PCRLF
1009 *
1010 FB1E 34 10 PCRLF PSHS X SAVE IX
1011 FB20 8E FE A4 LDX #MSG2+1 POINT TO MSG CR/LF + 3 NULS
1012 FB23 17 00 69 LBSR PDATA PRINT MSG
1013 FB26 35 90 PULS X,PC RESTORE IX & RETURN
1014 *
1015 * LONG BRANCHES TO COMMON ROUTINES
1016 *
1017 FB28 16 01 A1 JOUT1S LBRA OUT1S
1018 FB2B 16 00 F8 JBYTE LBRA BYTE
1019 FB2E 16 00 E5 JIN1ADR LBRA IN1ADR
1020 *
1021 * ALTER "PC" PROGRAM COUNTER
1022 *
1023 FB31 17 00 91 ALTRPC LBSR PRTPC $FCF5 PRINT MSG " PC = "
1024 FB34 8D F2 ALTPC1 BSR JOUT1S OUTPUT SPACE
1025 FB36 8D F6 BSR JIN1ADR GET NEW CONTENTS FOR "PC"
1026 FB38 29 02 BVS ALTPCD EXIT IF INVALID HEX
1027 FB3A AF 4A STX 10,U POKE IN NEW CONTENTS
1028 FB3C 39 ALTPCD RTS ;
1029 *
1030 * ALTER "U" USER STACK POINTER
1031 *
1032 FB3D 8D 61 ALTRU BSR PRTUS $FCCA PRINT MSG " US = "
1033 FB3F 8D E7 BSR JOUT1S OUTPUT SPACE
1034 FB41 8D EB BSR JIN1ADR
1035 FB43 29 02 BVS ALTUD
1036 FB45 AF 48 STX 8,U
1037 FB47 39 ALTUD RTS ;
1038 *
1039 * ALTER "Y" INDEX REGISTER
1040 *
1041 FB48 8D 72 ALTRY BSR PRTIY PRINT MSG " IY = "
1042 FB4A 8D DC BSR JOUT1S OUTPUT SPACE
1043 FB4C 8D E0 BSR JIN1ADR
1044 FB4E 29 02 BVS ALTYD
1045 FB50 AF 46 STX 6,U $F8F0
1046 FB52 39 ALTYD RTS ;
1047 *
1048 * ALTER "X" INDEX REGISTER
1049 *
1050 FB53 8D 5E ALTRX BSR PRTIX $FCE0 PRINT MSG " IX = "
1051 FB55 8D D1 BSR JOUT1S OUTPUT SPACE
1052 FB57 8D D5 BSR JIN1ADR
1053 FB59 29 02 BVS ALTXD
1054 FB5B AF 44 STX 4,U
1055 FB5D 39 ALTXD RTS ;
1056 *
1057 * ALTER "DP" DIRECT PAGE REGISTER
1058 *
1059 FB5E 8D 49 ALTRDP BSR PRTDP $FCD5 PRINT MSG " DP = "
1060 FB60 8D C6 BSR JOUT1S OUTPUT SPACE
1061 FB62 8D C7 BSR JBYTE INPUT BYTE (2 HEX CHAR)
1062 FB64 29 02 BVS ALTDPD
1063 FB66 A7 43 STA 3,U
1064 FB68 39 ALTDPD RTS ;
1065 *
1066 * ALTER "B" ACCUMULATOR
1067 *
1068 FB69 8D 6C ALTRB BSR PRTB $FD09 PRINT MSG " B = "
1069 FB6B 8D BB BSR JOUT1S OUTPUT SPACE
1070 FB6D 8D BC BSR JBYTE INPUT BYTE (2 HEX CHAR)
1071 FB6F 29 02 BVS ALTBD
1072 FB71 A7 42 STA 2,U
1073 FB73 39 ALTBD RTS $F91C
1074 *
1075 * ALTER "A" ACCUMULATOR
1076 *
1077 FB74 8D 58 ALTRA BSR PRTA $FCFF RINT MSG " A = "
1078 FB76 8D B0 BSR JOUT1S OUTPUT SPACE
1079 FB78 8D B1 BSR JBYTE INPUT BYTE (2 HEX CHAR)
1080 FB7A 29 02 BVS ALTAD
1081 FB7C A7 41 STA 1,U
1082 FB7E 39 ALTAD RTS ;
1083 *
1084 * ALTER "CC" REGISTER
1085 *
1086 FB7F 8D 5F ALTRCC BSR PRTCC $FD13 PRINT MSG " CC: "
1087 FB81 8D A5 BSR JOUT1S OUTPUT SPACE
1088 FB83 8D A6 BSR JBYTE INPUT BYTE (2 HEX CHAR)
1089 FB85 29 04 BVS ALTCCD
1090 FB87 8A 80 ORA #$80 SETS "E" FLAG IN PRINT LIST
1091 FB89 A7 C4 STA ,U
1092 FB8B 39 ALTCCD RTS ;
1093 *
1094 * PDATA
1095 *
1096 FB8C 17 01 3F PRINT LBSR OUTCH
1097 FB8F A6 80 PDATA LDA ,X+ GET 1st CHAR. TO PRINT
1098 FB91 81 04 CMPA #4 IS IT EOT?
1099 FB93 26 F7 BNE PRINT IF NOT EOT PRINT IT
1100 FB95 39 RTS ;
1101 *
1102 * PRINT REGISTERS
1103 *
1104 FB96 8E FE B6 PRTSP LDX #MSG10 POINT TO MSG "SP="
1105 FB99 8D F4 BSR PDATA PRINT MSG
1106 FB9B 1F 31 TFR U,X
1107 FB9D 16 00 BF JOUT4H LBRA OUT4H
1108 *
1109 FBA0 8E FE C2 PRTUS LDX #MSG12 POINT TO MSG "US="
1110 FBA3 8D EA BSR PDATA PRINT MSG
1111 FBA5 AE 48 LDX 8,U
1112 FBA7 20 F4 BRA JOUT4H
1113 *
1114 FBA9 8E FE D4 PRTDP LDX #MSG15 POINT TO MSG "DP="
1115 FBAC 8D E1 BSR PDATA PRINT MSG
1116 FBAE A6 43 LDA 3,U
1117 FBB0 16 00 B4 JOUT2H LBRA OUT2H OUTPUT HEX BYTE AS ASCII
1118 *
1119 FBB3 8E FE CE PRTIX LDX #MSG14 POINT TO MSG "IX="
1120 FBB6 8D D7 BSR PDATA PRINT MSG
1121 FBB8 AE 44 LDX 4,U $FCE6
1122 FBBA 20 E1 BRA JOUT4H
1123 *
1124 FBBC 8E FE C8 PRTIY LDX #MSG13 POINT TO MSG "IY="
1125 FBBF 8D CE BSR PDATA PRINT MSG
1126 FBC1 AE 46 LDX 6,U
1127 FBC3 20 D8 BRA JOUT4H
1128 *
1129 FBC5 8E FE BC PRTPC LDX #MSG11 POINT TO MSG "PC="
1130 FBC8 8D C5 BSR PDATA PRINT MSG
1131 FBCA AE 4A LDX 10,U
1132 FBCC 20 CF BRA JOUT4H
1133 *
1134 FBCE 8E FE DA PRTA LDX #MSG16 POINT TO MSG "A="
1135 FBD1 8D BC BSR PDATA PRINT MSG
1136 FBD3 A6 41 LDA 1,U
1137 FBD5 20 D9 BRA JOUT2H OUTPUT HEX BYTE AS ASCII
1138 *
1139 FBD7 8E FE DF PRTB LDX #MSG17 POINT TO MSG "B="
1140 FBDA 8D B3 BSR PDATA PRINT MSG
1141 FBDC A6 42 LDA 2,U
1142 FBDE 20 D0 BRA JOUT2H OUTPUT HEX BYTE AS ASCII
1143 *
1144 FBE0 8E FE E4 PRTCC LDX #MSG18 POINT TO MSG "CC:"
1145 FBE3 8D AA BSR PDATA PRINT MSG
1146 FBE5 A6 C4 LDA ,U
1147 FBE7 8E FE EB LDX #MSG19 POINT TO MSG "EFHINZVC"
1148 FBEA 16 00 90 LBRA BIASCI OUTPUT IN BINARY/ASCII FORMAT
1149 *
1150 * "R" DISPLAY REGISTERS
1151 *
1152 FBED 8E FE B2 REGSTR LDX #MSG5 POINT TO MSG " - "
1153 FBF0 17 FF 27 LBSR PSTRNG PRINT MSG
1154 FBF3 8D A1 BSR PRTSP $FCBF
1155 FBF5 8D A9 BSR PRTUS $FCCA
1156 FBF7 8D B0 BSR PRTDP $FCD5
1157 FBF9 8D B8 BSR PRTIX $FCE0
1158 FBFB 8D BF BSR PRTIY $FCEB
1159 FBFD 8E FE B2 LDX #MSG5 POINT TO MSG " - "
1160 FC00 17 FF 17 LBSR PSTRNG PRINT MSG
1161 FC03 8D C0 BSR PRTPC $FCF5
1162 FC05 8D C7 BSR PRTA $FCFF
1163 FC07 8D CE BSR PRTB $FD09
1164 FC09 20 D5 BRA PRTCC $FD13
1165 *
1166 * THE FOLLOWING ROUTINE LOOPS WAITING FOR THE
1167 * OPERATOR TO INPUT TWO VALID HEX ADDRESSES.
1168 * THE FIRST ADDRESS INPUT IS RETURNED IN "IY".
1169 * THE SECOND IS RETURNED IN "IX". THE "V" BIT
1170 * IN THE C-CODE REG. IS SET IF AN INVALID HEX
1171 * ADDRESS IS INPUT.
1172 *
1173 FC0B 8D 09 IN2ADR BSR IN1ADR GET FIRST ADDRESS
1174 FC0D 29 4D BVS NOTHEX EXIT IF NOT VALID HEX
1175 FC0F 1F 12 TFR X,Y SAVE FIRST ADDR. IN "IY"
1176 FC11 86 2D LDA #'-
1177 FC13 17 00 B8 LBSR OUTCH PRINT " - "
1178 *
1179 * THE FOLLOWING ROUTINE LOOPS WAITING FOR THE
1180 * OPERATOR TO INPUT ONE VALID HEX ADDRESS. THE
1181 * ADDRESS IS RETURNED IN THE "X" REGISTER.
1182 *
1183 FC16 8D 0E IN1ADR BSR BYTE INPUT BYTE (2 HEX CHAR)
1184 FC18 29 42 BVS NOTHEX EXIT IF NOT VALID HEX
1185 FC1A 1F 01 TFR D,X
1186 FC1C 8D 08 BSR BYTE INPUT BYTE (2 HEX CHAR)
1187 FC1E 29 3C BVS NOTHEX
1188 FC20 34 10 PSHS X
1189 FC22 A7 61 STA 1,S
1190 FC24 35 90 PULS X,PC
1191 *
1192 ***** INPUT BYTE (2 HEX CHAR.) *****
1193 *
1194 FC26 8D 11 BYTE BSR INHEX GET HEX LEFT
1195 FC28 29 32 BVS NOTHEX EXIT IF NOT VALID HEX
1196 FC2A 48 ASLA ;
1197 FC2B 48 ASLA ;
1198 FC2C 48 ASLA ; SHIFT INTO LEFT NIBBLE
1199 FC2D 48 ASLA ;
1200 FC2E 1F 89 TFR A,B PUT HEXL IN "B"
1201 FC30 8D 07 BSR INHEX GET HEX RIGHT
1202 FC32 29 28 BVS NOTHEX EXIT IF NOT VALID HEX
1203 FC34 34 04 PSHS B PUSH HEXL ON STACK
1204 FC36 AB E0 ADDA ,S+ ADD HEXL TO HEXR AND ADJ. STK
1205 FC38 39 RTS RETURN WITH HEX L&R IN "A"
1206 *
1207 *
1208 FC39 8D 5B INHEX BSR ECHON INPUT ASCII CHAR.
1209 FC3B 81 30 CMPA #'0 IS IT > OR = "0" ?
1210 FC3D 25 1D BCS NOTHEX IF LESS IT AIN'T HEX
1211 FC3F 81 39 CMPA #'9 IS IT < OR = "9" ?
1212 FC41 22 03 BHI INHEXA IF > MAYBE IT'S ALPHA
1213 FC43 80 30 SUBA #$30 ASCII ADJ. NUMERIC
1214 FC45 39 RTS ;
1215 *
1216 *
1217 FC46 81 41 INHEXA CMPA #'A IS IT > OR = "A"
1218 FC48 25 12 BCS NOTHEX IF LESS IT AIN'T HEX
1219 FC4A 81 46 CMPA #'F IS IT < OR = "F" ?
1220 FC4C 22 03 BHI INHEXL IF > IT AIN'T HEX
1221 FC4E 80 37 SUBA #$37 ASCII ADJ. ALPHA
1222 FC50 39 RTS ;
1223 *
1224 FC51 81 61 INHEXL CMPA #'a IS IT > OR = "a"
1225 FC53 25 07 BCS NOTHEX IF LESS IT AIN'T HEX
1226 FC55 81 66 CMPA #'f IS IT < "f"
1227 FC57 22 03 BHI NOTHEX IF > IT AIN'T HEX
1228 FC59 80 57 SUBA #$57 ADJUST TO LOWER CASE
1229 FC5B 39 RTS ;
1230 *
1231 *
1232 FC5C 1A 02 NOTHEX ORCC #2 SET (V) FLAG IN C-CODES REGISTER
1233 FC5E 39 RTS ;
1234 *
1235 *
1236 FC5F 34 10 OUT4H PSHS X PUSH X-REG. ON THE STACK
1237 FC61 35 02 PULS A POP MS BYTE OF X-REG INTO A-ACC.
1238 FC63 8D 02 BSR OUTHL OUTPUT HEX LEFT
1239 FC65 35 02 PULS A POP LS BYTE OF X-REG INTO A-ACC.
1240 FC67 OUTHL EQU *
1241 FC67 34 02 OUT2H PSHS A SAVE IT BACK ON STACK
1242 FC69 44 LSRA CONVERT UPPER HEX NIBBLE TO ASCII
1243 FC6A 44 LSRA ;
1244 FC6B 44 LSRA ;
1245 FC6C 44 LSRA ;
1246 FC6D 8D 04 BSR XASCII PRINT HEX NIBBLE AS ASCII
1247 FC6F 35 02 OUTHR PULS A CONVERT LOWER HEX NIBBLE TO ASCII
1248 FC71 84 0F ANDA #$0F STRIP LEFT NIBBLE
1249 FC73 8B 30 XASCII ADDA #$30 ASCII ADJ
1250 FC75 81 39 CMPA #$39 IS IT < OR = "9" ?
1251 FC77 2F 02 BLE OUTC IF LESS, OUTPUT IT
1252 FC79 8B 07 ADDA #7 IF > MAKE ASCII LETTER
1253 FC7B 20 51 OUTC BRA OUTCH OUTPUT CHAR
1254 *
1255 * BINARY / ASCII --- THIS ROUTINE
1256 * OUTPUTS A BYTE IN ENHANCED
1257 * BINARY FORMAT. THE ENHANCEMENT
1258 * IS DONE BY SUBSTITUTING ASCII
1259 * LETTERS FOR THE ONES IN THE BYTE.
1260 * THE ASCII ENHANCEMENT LETTERS
1261 * ARE OBTAINED FROM THE STRING
1262 * POINTED TO BY THE INDEX REG. "X".
1263 *
1264 FC7D 34 02 BIASCI PSHS A SAVE "A" ON STACK
1265 FC7F C6 08 LDB #8 PRESET LOOP# TO BITS PER BYTE
1266 FC81 A6 80 OUTBA LDA ,X+ GET LETTER FROM STRING
1267 FC83 68 E4 ASL ,S TEST BYTE FOR "1" IN B7
1268 FC85 25 02 BCS PRTBA IF ONE PRINT LETTER
1269 FC87 86 2D LDA #'- IF ZERO PRINT "-"
1270 FC89 8D 43 PRTBA BSR OUTCH PRINT IT
1271 FC8B 8D 3F BSR OUT1S PRINT SPACE
1272 FC8D 5A DECB SUB 1 FROM #BITS YET TO PRINT
1273 FC8E 26 F1 BNE OUTBA
1274 FC90 35 82 PULS A,PC
1275 *
1276 IFD EXTOPT
1277 *
1278 * EXTENDED USER COMMANDS
1279 *
1280 FC92 6E 9F F0 00 USRCMD JMP [MONEXT+EXTCMD]
1281 ENDIF EXTOPT
1282 *
1283 *
1284 FC96 7D DF E2 ECHON TST ECHO IS ECHO REQUIRED ?
1285 FC99 27 06 BEQ INCH ECHO NOT REQ. IF CLEAR
1286 *
1287 * INCHE
1288 *
1289 * ---GETS CHARACTER FROM TERMINAL AND
1290 * ECHOS SAME. THE CHARACTER IS RETURNED
1291 * IN THE "A" ACCUMULATOR WITH THE PARITY
1292 * BIT MASKED OFF. ALL OTHER REGISTERS
1293 * ARE PRESERVED.
1294 *
1295 FC9B 8D 04 INCHE BSR INCH GET CHAR FROM TERMINAL
1296 FC9D 84 7F ANDA #$7F STRIP PARITY FROM CHAR.
1297 FC9F 20 2D BRA OUTCH ECHO CHAR TO TERMINAL
1298 *
1299 * INCH
1300 *
1301 * GET CHARACTER FROM TERMINAL. RETURN
1302 * CHARACTER IN "A" ACCUMULATOR AND PRESERVE
1303 * ALL OTHER REGISTERS. THE INPUT CHARACTER
1304 * IS 8 BITS AND IS NOT ECHOED.
1305 *
1306 *
1307 FCA1 34 10 INCH PSHS X SAVE IX
1308 FCA3 BE DF E0 GETSTA LDX CPORT POINT TO TERMINAL PORT
1309 FCA6 A6 84 LDA ,X FETCH PORT STATUS
1310 FCA8 85 01 BITA #1 TEST READY BIT, RDRF ?
1311 IFD PS2OPT
1312 FCAA 26 09 BNE GETST1
1313 FCAC 8E E0 20 LDX #PS2KBD
1314 FCAF A6 84 LDA ,X
1315 FCB1 85 01 BITA #1
1316 ENDIF PS2OPT
1317 FCB3 27 EE BEQ GETSTA IF NOT RDY, THEN TRY AGAIN
1318 FCB5 A6 01 GETST1 LDA 1,X FETCH CHAR
1319 FCB7 35 90 PULS X,PC RESTORE IX
1320 *
1321 * INCHEK
1322 *
1323 * CHECK FOR A CHARACTER AVAILABLE FROM
1324 * THE TERMINAL. THE SERIAL PORT IS CHECKED
1325 * FOR READ READY. ALL REGISTERS ARE
1326 * PRESERVED, AND THE "Z" BIT WILL BE
1327 * CLEAR IF A CHARACTER CAN BE READ.
1328 *
1329 *
1330 FCB9 34 02 INCHEK PSHS A SAVE A ACCUM.
1331 FCBB A6 9F DF E0 LDA [CPORT] FETCH PORT STATUS
1332 FCBF 85 01 BITA #1 TEST READY BIT, RDRF ?
1333 IFD PS2OPT
1334 FCC1 26 05 BNE INCHEK1
1335 FCC3 B6 E0 20 LDA PS2KBD
1336 FCC6 85 01 BITA #1 TEST READY BIT< RDRF ?
1337 ENDIF PS2OPT
1338 FCC8 35 82 INCHEK1 PULS A,PC RESTORE A ACCUM.
1339 *
1340 FCCA 8D 00 OUT2S BSR OUT1S OUTPUT 2 SPACES
1341 FCCC 86 20 OUT1S LDA #$20 OUTPUT 1 SPACE
1342 *
1343 *
1344 * OUTCH
1345 *
1346 * OUTPUT CHARACTER TO TERMINAL.
1347 * THE CHAR. TO BE OUTPUT IS
1348 * PASSED IN THE A REGISTER.
1349 * ALL REGISTERS ARE PRESERVED.
1350 *
1351 OUTCH IFD VDUOPT
1352 FCCE 8D 45 BSR VOUTCH
1353 ENDIF VDUOPT
1354 IFD DG640OPT
1355 BSR VOUTCH
1356 ENDIF DG640OPT
1356 ENDIF DG640OPT
1357 FCD0 34 12 AOUTCH PSHS A,X SAVE A ACCUM AND IX
1358 FCD2 BE DF E0 LDX CPORT GET ADDR. OF TERMINAL
1359 FCD5 A6 84 FETSTA LDA ,X FETCH PORT STATUS
1360 FCD7 85 02 BITA #2 TEST TDRE, OK TO XMIT ?
1361 FCD9 27 FA BEQ FETSTA IF NOT LOOP UNTIL RDY
1362 FCDB 35 02 PULS A GET CHAR. FOR XMIT
1363 FCDD A7 01 STA 1,X XMIT CHAR.
1364 FCDF 35 90 PULS X,PC RESTORE IX
1365 *
1366 * IO INITIALIZATION
1367 *
1368 FCE1 IOINIZ EQU *
1369 IFD VDUOPT
1370 FCE1 8D 13 BSR VINIZ
1371 ENDIF VDUOPT
1372 IFD DG640OPT
1373 BSR VINIZ
1374 ENDIF DG640OPT
1374 ENDIF DG640OPT
1375 FCE3 BE DF E0 ACINIZ LDX CPORT POINT TO CONTROL PORT ADDRESS
1376 FCE6 86 03 LDA #3 RESET ACIA PORT CODE
1377 FCE8 A7 84 STA ,X STORE IN CONTROL REGISTER
1378 FCEA 86 11 LDA #$11 SET 8 DATA, 2 STOP AN 0 PARITY
1379 FCEC A7 84 STA ,X STORE IN CONTROL REGISTER
1380 FCEE 6D 01 TST 1,X ANYTHING IN DATA REGISTER?
1381 FCF0 86 FF LDA #$FF TURN ON ECHO FLAG
1382 FCF2 B7 DF E2 STA ECHO
1383 FCF5 39 RTS
1384 *
1385 IFD VDUOPT
1386 *
1387 ***************************************************
1388 * VDU8 ADM3A REGISTER-MAPPED EMULATOR *
1389 * *
1390 * 80 x 25 Characters
1391 *
1392 ***************************************************
1393 *
1394 ***************************************************
1395 * INITIALIZE EMULATOR *
1396 ***************************************************
1397 *
1398 FCF6 8E E0 30 VINIZ LDX #VDU
1399 FCF9 CC 00 00 LDD #0
1400 FCFC FD DF FB STD COLADX AND ROWADX
1401 FCFF A7 02 STA VDUCOL,X
1402 FD01 E7 03 STB VDUROW,X
1403 FD03 E7 04 STB VDUOFF,X
1404 FD05 FD DF FD STD NEWROW AND ESCFLG
1405 FD08 C6 02 LDB #$02
1406 FD0A E7 01 STB VDUATT,X
1407 FD0C 7F DF FE CLR ESCFLG
1408 FD0F 86 1B LDA #$1B SEND ESCAPE
1409 FD11 8D 02 BSR VOUTCH
1410 FD13 86 59 LDA #'Y CLEAR TO END OF SCREEN
1411 *
1412 ** VIDEO OUTPUT ROUTINE
1413 *
1414 FD15 34 16 VOUTCH PSHS A,B,X SAVE REGISTERS
1415 FD17 8E E0 30 LDX #VDU POINT TO VDU REGISTERS
1416 *
1417 ** CHECK FOR ESCAPE SEQUENCE
1418 *
1419 FD1A 7D DF FE TST ESCFLG ESCAPE ACTIVE?
1420 FD1D 27 04 BEQ SOROU1 BRANCH IF NOT
1421 FD1F 8D 74 BSR ESCAPE ELSE DO ESCAPE
1422 FD21 20 0D BRA RETURN AND RETURN
1423 *
1424 ** CHECK FOR CONTROL CHARACTERS
1425 *
1426 FD23 81 20 SOROU1 CMPA #$20 CONTROL CODES?
1427 FD25 24 04 BHS SOROU2
1428 FD27 8D 09 BSR CONTRL BRANCH IF SO
1429 FD29 20 05 BRA RETURN
1430 *
1431 ** OUTPUT TEXT CHARACTER
1432 *
1433 FD2B A7 84 SOROU2 STAA VDUCHR,X DISPLAY CHARACTER
1434 FD2D 17 00 C5 LBSR NEWCOL UPDATE COLUMN
1435 *
1436 ** DISPLAY CURSOR AND RETURN
1437 *
1438 FD30 35 96 RETURN PULS A,B,X,PC RESTORE REGISTERS AND RETURN
1439 *
1440 ***************************************************
1441 * CONTROL CODE HANDLERS *
1442 ***************************************************
1443 *
1444 FD32 81 08 CONTRL CMPA #$08 CTRL H - BACKSPACE ?
1445 FD34 10 27 00 41 LBEQ BACKSP
1446 FD38 81 1B CMPA #$1B ESCAPE SEQUENCE?
1447 FD3A 10 27 00 6C LBEQ SETESC
1448 FD3E 81 1A CMPA #$1A CTRL Z - Clear Screen
1449 FD40 10 27 00 8E LBEQ CLRSCR
1450 FD44 81 16 CMPA #$16 CTRL ^ - Home
1451 FD46 10 27 00 45 LBEQ HOME
1452 FD4A 81 0D CMPA #$D CTRL M - RETURN?
1453 FD4C 10 27 00 99 LBEQ CRETN
1454 FD50 81 0C CMPA #$0C CTRL L - CHAR RIGHT
1455 FD52 10 27 00 2C LBEQ CHRIGHT
1456 FD56 81 0B CMPA #$0B CTRL K - MOVE UP ONE LINE
1457 FD58 10 27 00 11 LBEQ LINEUP
1458 FD5C 81 0A CMPA #$0A CTRL J - LINE FEED
1459 FD5E 26 51 BNE RETESC NONE OF THESE, RETURN
1460 *
1461 ***************************************** LINE FEED
1462 *
1463 FD60 FC DF FB LINEFD LDD COLADX GET CURRENT COLUMN AND ROW
1464 FD63 5C INCB BUMP ROW
1465 FD64 C1 19 CMPB #NUMLIN SCROLL TIME?
1466 FD66 10 26 00 83 LBNE NEWCUR POSITION CURSOR IF NOT
1467 FD6A 16 00 99 LBRA SCROLL ELSE SCROLL IT
1468 *
1469 ***************************************** LINE FEED
1470 *
1471 FD6D FC DF FB LINEUP LDD COLADX GET CURRENT COLUMN AND ROW
1472 FD70 5D TSTB AT TOP OF SCREEN ?
1473 FD71 10 27 00 3C LBEQ RETESC Yes, Ignore
1474 FD75 5A DECB No, Decrement ROW
1475 FD76 16 00 74 LBRA NEWCUR POSITION CURSOR
1476 *
1477 *********************************** BACK SPACE
1478 *
1479 FD79 B6 DF FB BACKSP LDA COLADX
1480 FD7C 27 33 BEQ RETESC RETURN
1481 FD7E 4A DECA
1482 FD7F 16 00 68 LBRA POSCOL POSITION CURSOR
1483 *
1484 *********************************** CURSOR RIGHT
1485 *
1486 FD82 B6 DF FB CHRIGHT LDA COLADX
1487 FD85 4C INCA
1488 FD86 81 50 CMPA #LINLEN
1489 FD88 10 27 00 25 LBEQ RETESC
1490 FD8C 16 00 5B LBRA POSCOL
1491 *
1492 *********************************** CURSOR RIGHT
1493 *
1494 FD8F CC 00 00 HOME LDD #0 HOME - POSITION TOP OF SCREEN
1495 FD92 16 00 58 LBRA NEWCUR
1496 *
1497 ***************************************************
1498 * ESCAPE HANDLERS *
1499 ***************************************************
1500 *
1501 FD95 F6 DF FE ESCAPE LDAB ESCFLG GET FLAG
1502 FD98 C1 3D CMPB #'= SETTING CURSOR?
1503 FD9A 27 16 BEQ ESCCUR BRANCH IF SO
1504 FD9C 81 59 CMPA #'Y CLEAR TO END OF SCREEN?
1505 FD9E 10 27 00 6E LBEQ ESCCLS
1506 FDA2 81 54 CMPA #'T CLEAR TO END OF LINE?
1507 FDA4 27 31 BEQ ESCCLL
1508 FDA6 81 3D CMPA #'= STARTING CURSOR SET?
1509 FDA8 26 04 BNE CLRESC BRANCH IF NOT
1510 *
1511 ***************************** START ESCAPE SEQUENCE
1512 *
1513 FDAA B7 DF FE SETESC STAA ESCFLG ELSE START CURSORING
1514 FDAD 39 RTS AND RETURN
1515 *
1516 FDAE 7F DF FE CLRESC CLR ESCFLG NO OTHERS SUPPORTED
1517 FDB1 39 RETESC RTS SO RETURN
1518 *
1519 ********************************* SET SCREEN CURSOR
1520 *
1521 FDB2 7D DF FD ESCCUR TST NEWROW ROW SET?
1522 FDB5 26 04 BNE ESCCU1 BRANCH IF SO
1523 FDB7 B7 DF FD STAA NEWROW ELSE SET NEW ROW
1524 FDBA 39 RTS AND RETURN
1525 *
1526 FDBB 7F DF FE ESCCU1 CLR ESCFLG
1527 FDBE 80 20 SUBA #$20 ADJUST COLUMN ADDRESS
1528 FDC0 81 4F CMPA #LINLEN-1 CHECK FOR ACCEPTABLE COLUM
1529 FDC2 22 ED BHI RETESC NOT OK, DO NOTHING
1530 *
1531 FDC4 F6 DF FD ESCCU2 LDAB NEWROW
1532 FDC7 7F DF FD CLR NEWROW
1533 FDCA C0 20 SUBB #$20 ADJUST TO ROW ADDRESS
1534 FDCC C1 18 CMPB #NUMLIN-1 CHECK FOR ACCEPTABLE ROW
1535 FDCE 22 E1 BHI RETESC ELSE RETURN DOING NOTHING
1536 FDD0 20 1B BRA NEWCUR GO SET NEW CURSOR IF SO
1537 *
1538 ****************** CLEAR FROM CURSOR TO END OF LINE
1539 FDD2 CC 00 00 CLRSCR LDD #0 CLEAR FROM TOP OF SCREEN
1540 FDD5 8D 16 BSR NEWCUR
1541 FDD7 B6 DF FB ESCCLL LDA COLADX
1542 FDDA C6 20 LDB #$20 AND CLEAR CHAR
1543 FDDC E7 84 ESCCL1 STB VDUCHR,X DISPLAY TEXT
1544 FDDE 4C INCA
1545 FDDF A7 02 STA VDUCOL,X
1546 FDE1 81 50 CMPA #LINLEN UNTIL END OF LINE
1547 FDE3 26 F7 BNE ESCCL1
1548 FDE5 7F DF FE CLR ESCFLG
1549 FDE8 39 RTS
1550 *
1551 *********************************** CARRIAGE RETURN
1552 *
1553 FDE9 4F CRETN CLRA SET COLUMN ZERO
1554 FDEA F6 DF FC POSCOL LDB ROWADX GET CURRENT ROW
1555 *
1556 *********** GENERATE NEW CURSOR POSITION AND RETURN
1557 *
1558 FDED FD DF FB NEWCUR STD COLADX SAVE NEW ROW AND COLUMN
1559 FDF0 A7 02 STA VDUCOL,X SET NEW COLUMN
1560 FDF2 E7 03 STB VDUROW,X SET NEW ROW
1561 FDF4 39 RTS AND RETURN
1562 *
1563 ********************* UPDATE CURRENT COLUMN AND ROW
1564 *
1565 FDF5 FC DF FB NEWCOL LDD COLADX GET ROW AND COLUMN
1566 FDF8 4C INCA BUMP COLUMN
1567 FDF9 81 50 CMPA #LINLEN ROLL?
1568 FDFB 26 F0 BNE NEWCUR BRANCH IF NOT
1569 FDFD 4F CLRA ELSE RESET TO ZERO
1570 FDFE 5C INCB AND BUMP ROW
1571 FDFF C1 19 CMPB #NUMLIN
1572 FE01 26 EA BNE NEWCUR
1573 FE03 5A DECB BOTTOM ROW
1574 FE04 8D E7 BSR NEWCUR
1575 *
1576 ********************************* SCROLL THE SCREEN
1577 *
1578 FE06 E6 04 SCROLL LDB VDUOFF,X
1579 FE08 5C INCB
1580 FE09 C1 19 CMPB #NUMLIN
1581 FE0B 25 01 BLO SCROL1
1582 FE0D 5F CLRB
1583 FE0E E7 04 SCROL1 STB VDUOFF,X
1584 *
1585 **************** CLEAR FROM CURSOR TO END OF SCREEN
1586 *
1587 FE10 F6 DF FB ESCCLS LDB COLADX GET CURSOR
1588 FE13 86 20 LDA #$20 GET A SPACE
1589 FE15 F7 DF FB ESCCLS1 STB COLADX
1590 FE18 E7 02 STB VDUCOL,X
1591 FE1A A7 84 STA VDUCHR,X
1592 FE1C 5C INCB
1593 FE1D C1 50 CMPB #LINLEN
1594 FE1F 26 F4 BNE ESCCLS1
1595 *
1596 FE21 F6 DF FC LDB ROWADX
1597 FE24 5C INCB
1598 FE25 C1 19 CMPB #NUMLIN
1599 FE27 27 08 BEQ ESCCLS2
1600 FE29 F7 DF FC STB ROWADX
1601 FE2C E7 03 STB VDUROW,X
1602 FE2E 5F CLRB
1603 FE2F 20 E4 BRA ESCCLS1
1604 *
1605 FE31 5F ESCCLS2 CLRB
1606 FE32 F7 DF FB STB COLADX
1607 FE35 E7 02 STB VDUCOL,X
1608 FE37 F7 DF FE STB ESCFLG
1609 FE3A 39 RTS
1610 ENDIF VDUOPT
1611 *
1612 IFD DG640OPT
1613 ***************************************************
1614 * TELEVIDEO-TYPE MEMORY-MAPPED EMULATOR *
1615 * *
1616 * FOR HARD-WIRED MEMORY-MAPPED DISPLAYS USING THE *
1617 * HIGH ORDER BIT OF EACH BYTE FOR REVERSE VIDEO *
1618 * CURSORING (SUCH AS THE THOMAS INSTRUMENTATION *
1619 * 16x64 BOARD). *
1620 ***************************************************
1621
1622 ***************************************************
1623 * INITIALIZE EMULATOR *
1624 ***************************************************
1625
1626 VINIZ LDX #0
1627 STX COLADX AND ROWADX
1628 STX NEWROW AND ESCFLG
1629 LDX #SCREEN POINT TO SCREEN
1630 STX CURSOR SET PROGRAM CURSOR
1631 LDA #$1B SEND ESCAPE
1632 BSR VOUTCH
1633 LDA #'Y CLEAR TO END OF SCREEN
1634 *
1635 ** VIDEO OUTPUT ROUTINE
1636 *
1637 VOUTCH PSHS A,B,X SAVE REGISTERS
1638 *
1639 ** CLEAR CURSOR
1640 LDX CURSOR
1641 LDB 0,X
1642 ANDB #$7F
1643 STB 0,X
1644 *
1645 ** CHECK FOR ESCAPE SEQUENCE
1646 TST ESCFLG ESCAPE ACTIVE?
1647 BEQ SOROU1 BRANCH IF NOT
1648 BSR ESCAPE ELSE DO ESCAPE
1649 BRA RETURN AND RETURN
1650 *
1651 ** CHECK FOR CONTROL CHARACTERS
1652 SOROU1 CMPA #$20 CONTROL CODES?
1653 BHS SOROU2
1654 BSR CONTRL BRANCH IF SO
1655 BRA RETURN
1656 *
1657 ** OUTPUT TEXT CHARACTER
1658 SOROU2 LDX CURSOR ELSE GET CURSOR
1659 STAA 0,X DISPLAY CHARACTER
1660 LBSR NEWCOL UPDATE COLUMN
1661 *
1662 ** DISPLAY CURSOR AND RETURN
1663 RETURN LDX CURSOR AND DISPLAY IT
1664 LDB ,X
1665 ORAB #$80 WITH REVID
1666 STB ,X
1667 PULS A,B,X,PC RESTORE REGISTERS AND RETURN
1668
1669 ***************************************************
1670 * CONTROL CODE HANDLERS *
1671 ***************************************************
1672
1673 CONTRL CMPA #$08 CTRL H - BACKSPACE ?
1674 LBEQ BACKSP
1675 CMPA #$1B ESCAPE SEQUENCE?
1676 LBEQ SETESC
1677 CMPA #$D CTRL M - RETURN?
1678 LBEQ CRETN
1679 CMPA #$0A CTRL J - LINE FEED
1680 BNE RETESC NONE OF THESE, RETURN
1681
1682 ***************************************** LINE FEED
1683
1684 LINEFD LDD COLADX GET CURRENT COLUMN AND ROW
1685 INCB BUMP ROW
1686 CMPB #NUMLIN SCROLL TIME?
1687 LBNE NEWCUR POSITION CURSOR IF NOT
1688 LBRA SCROLL ELSE SCROLL IT
1689
1690 ***************************************** LINE FEED
1691
1692 LINEUP LDD COLADX GET CURRENT COLUMN AND ROW
1693 TSTB AT TOP OF SCREEN ?
1694 BEQ RETESC Yes, Ignore
1695 DECB No, Decrement ROW
1696 LBRA NEWCUR POSITION CURSOR
1697
1698
1699 *********************************** BACK SPACE
1700
1701 BACKSP LDA COLADX
1702 BEQ RETESC RETURN
1703 DECA
1704 LBRA POSCOL POSITION CURSOR
1705
1706 *********************************** CURSOR RIGHT
1707
1708 CHRIGHT LDA COLADX
1709 INCA
1710 CMPA #LINLEN
1711 BEQ RETESC
1712 LBRA POSCOL
1713
1714 ***************************************************
1715 * ESCAPE HANDLERS *
1716 ***************************************************
1717
1718 ESCAPE LDAB ESCFLG GET FLAG
1719 CMPB #'= SETTING CURSOR?
1720 BEQ ESCCUR BRANCH IF SO
1721 CMPA #'Y CLEAR TO END OF SCREEN?
1722 LBEQ ESCCLS
1723 CMPA #'T CLEAR TO END OF LINE?
1724 BEQ ESCCLL
1725 CMPA #'E INSERT LINE?
1726 BEQ ESCINL
1727 CMPA #'R DELETE LINE?
1728 BEQ ESCDLL
1729 CMPA #'= STARTING CURSOR SET?
1730 BNE CLRESC BRANCH IF NOT
1731
1732 ***************************** START ESCAPE SEQUENCE
1733
1734 SETESC STAA ESCFLG ELSE START CURSORING
1735 RTS AND RETURN
1736
1737 CLRESC CLR ESCFLG NO OTHERS SUPPORTED
1738 RETESC RTS SO RETURN
1739
1740 ********************************* SET SCREEN CURSOR
1741
1742 ESCCUR TST NEWROW ROW SET?
1743 BNE ESCCU1 BRANCH IF SO
1744 STAA NEWROW ELSE SET NEW ROW
1745 RTS AND RETURN
1746
1747 ESCCU1 CLR ESCFLG
1748 SUBA #$20 ADJUST COLUMN ADDRESS
1749 CMPA #LINLEN-1 CHECK FOR ACCEPTABLE COLUM
1750 BHI RETESC NOT OK, DO NOTHING
1751
1752 ESCCU2 LDAB NEWROW
1753 CLR NEWROW
1754 SUBB #$20 ADJUST TO ROW ADDRESS
1755 CMPB #NUMLIN-1 CHECK FOR ACCEPTABLE ROW
1756 BHI RETESC ELSE RETURN DOING NOTHING
1757 BRA NEWCUR GO SET NEW CURSOR IF SO
1758 *
1759 *************************** DELETE LINE FROM SCREEN
1760
1761 ESCDLL BSR CRETN GO COL. ZERO
1762 LDB ROWADX
1763 CMPB #NUMLIN-1
1764 BEQ SCROL3
1765 BRA SCROL1 AND DELETE THIS LINE
1766
1767 *************************** INSERT LINE INTO SCREEN
1768
1769 ESCINL BSR CRETN GO TO COL. ZERO
1770 LDAB ROWADX
1771 CMPB #NUMLIN-1
1772 BEQ ESCCLL
1773 *
1774 ** SCROLL SCREEN DOWN FROM CURSOR
1775 *
1776 LDX #SCREEN+SCNLEN-LINLEN
1777 ESCIN0 LDAA 0,-X
1778 STAA LINLEN,X
1779 LDA SCNLEN,X
1780 STA SCNLEN+LINLEN,X
1781 CPX CURSOR
1782 BNE ESCIN0
1783
1784 ****************** CLEAR FROM CURSOR TO END OF LINE
1785
1786 ESCCLL LDA COLADX GET CURRENT COLUMN
1787 LDX CURSOR GET CURSOR
1788 LDB #$20 AND CLEAR CHAR
1789 ESCLL1 STB SCNLEN,X CLEAR ATTRIBUTE
1790 STB ,X+ CLEAR TEXT
1791 INCA
1792 CMPA #LINLEN UNTIL END OF LINE
1793 BNE ESCLL1
1794 CLR ESCFLG
1795 RTS
1796
1797 *********************************** CARRIAGE RETURN
1798
1799 CRETN CLRA SET COLUMN ZERO
1800 POSCOL LDB ROWADX GET CURRENT ROW
1801
1802 *********** GENERATE NEW CURSOR POSITION AND RETURN
1803
1804 NEWCUR STD COLADX SAVE NEW ROW AND COLUMN
1805 LDA #LINLEN ELSE ADD A LINE
1806 MUL LINLEN * ROWADX
1807 ADDB COLADX
1808 ADCA #0
1809 ADDD #SCREEN ADD SCREEN BASE.
1810 STD CURSOR SAVE NEW CURSOR
1811 TFR D,X GET CURSOR IN X
1812 RTS AND RETURN
1813
1814 ********************* UPDATE CURRENT COLUMN AND ROW
1815
1816 NEWCOL LDD COLADX GET ROW AND COLUMN
1817 INCA BUMP COLUMN
1818 CMPA #LINLEN ROLL?
1819 BNE NEWCUR BRANCH IF NOT
1820 CLRA ELSE RESET TO ZERO
1821 INCB AND BUMP ROW
1822 CMPB #NUMLIN
1823 BNE NEWCUR
1824 DECB BOTTOM ROW
1825 BSR NEWCUR
1826
1827 ********************************* SCROLL THE SCREEN
1828
1829 SCROLL LDX #SCREEN POINT TO SCREEN
1830 SCROL1 LDA SCNLEN+LINLEN,X
1831 STA SCNLEN,X
1832 LDAA LINLEN,X MOVE TWO BYTES
1833 STAA 0,X+ UP ONE LINE
1834 CMPX #SCREEN+SCNLEN-LINLEN
1835 BNE SCROL1 LOOP UNTIL DONE
1836 BRA SCROL3
1837
1838 **************** CLEAR FROM CURSOR TO END OF SCREEN
1839
1840 ESCCLS LDX CURSOR GET CURSOR
1841 SCROL3 LDAA #$20 GET A SPACE
1842 SCROL2 STA SCNLEN,X CLEAR ATTRIBUTES
1843 STA ,X+ AND TEXT
1844 CMPX #SCREEN+SCNLEN
1845 BNE SCROL2 UNTIL DONE
1846 CLR ESCFLG
1847 RTS
1848 ENDIF DG640OPT
1848 ENDIF DG640OPT
1849 *
1850 IFD PRTOPT
1851 *************************************
1852 *
1853 ** PRINTER DRIVER ROUTINES
1854 *
1855 *************************************
1856 *
1857 ** PINIZ - INITIATE PRINTER PORT
1858 *
1859 PINIZ PSHS B
1860 LDD #DIRMSK*256+$04 ACCA=DIRMSK ACCB=$04
1861 STD PADATA SET DDR AND SELECT DATA
1862 *
1863 ** RESET PRINTER
1864 LDB #PRESET
1865 STAB PADATA
1866 RESTLP INCB DELAY FOR RESET
1867 BNE RESTLP
1868 STAA PADATA ACCA=DIRMSK
1869 *
1870 ** INITALIZE PORT B (DATA PORT)
1871 LDAA #$2A
1872 STAA PBCTRL
1873 LDD #$FF2E ACCA=$FF ACCB =%00101110
1874 STD PBDATA PBDREG PBCTRL
1875 *
1876 ** SELECT 66 LINES/PAGE
1877 LDAA #$1B
1878 BSR POUTCH
1879 LDAA #'C
1880 BSR POUTCH
1881 LDAA #66
1882 PULS B
1883 *************************************
1884 *
1885 ** OUTPUT A CHARACTER TO THE PRINTER
1886 *
1887 *************************************
1888 POUTCH PSHS B
1889 LDAB PBDATA CLEAR INTERRUPT BIT
1890 *
1891 ** WAIT TILL NOT BUSY
1892 BUSYLP LDAB PADATA
1893 BITB #PERROR
1894 BEQ PEXIT
1895 TSTB
1896 BMI BUSYLP
1897 *
1898 ** NOW OUTPUT CHARACTER
1899 STAA PBDATA
1900 PEXIT PULS B,PC
1901 *************************************
1902 *
1903 ** PCHK TEST IFD PRINTER READY
1904 *
1905 *************************************
1906 PCHK TST PBCTRL TEST STATE OF CRB7
1907 RTS SET ON ACKNOWLEDGE
1908 ENDIF PRTOPT
1908 ENDIF PRTOPT
1909 *************************************
1910 *
1911 * MONITOR KEYBOARD COMMAND JUMP TABLE
1912 *
1913 *************************************
1914 *
1915 FE3B JMPTAB EQU *
1916 FE3B 01 FCB 1 " ^A "
1917 FE3C FB 74 FDB ALTRA
1918 FE3E 02 FCB 2 " ^B "
1919 FE3F FB 69 FDB ALTRB
1920 FE41 03 FCB 3 " ^C "
1921 FE42 FB 7F FDB ALTRCC
1922 FE44 04 FCB 4 " ^D "
1923 FE45 FB 5E FDB ALTRDP
1924 FE47 10 FCB $10 " ^P "
1925 FE48 FB 31 FDB ALTRPC
1926 FE4A 15 FCB $15 " ^U "
1927 FE4B FB 3D FDB ALTRU
1928 FE4D 18 FCB $18 " ^X "
1929 FE4E FB 53 FDB ALTRX
1930 FE50 19 FCB $19 " ^Y "
1931 FE51 FB 48 FDB ALTRY
1932 *
1933 FE53 42 FCC 'B'
1934 FE54 F9 5C FDB BRKPNT
1935 FE56 45 FCC 'E'
1936 FE57 F8 FD FDB MEMDUMP
1937 FE59 47 FCC 'G'
1938 FE5A F8 A5 FDB GO
1939 FE5C 4C FCC 'L'
1940 FE5D FA 5E FDB LOAD
1941 FE5F 50 FCC 'P'
1942 FE60 FA BC FDB PUNCH
1943 FE62 4D FCC 'M'
1944 FE63 F8 A8 FDB MEMCHG
1945 FE65 52 FCC 'R'
1946 FE66 FB ED FDB REGSTR
1947 FE68 53 FCC 'S'
1948 FE69 F8 F1 FDB DISSTK
1949 FE6B 58 FCC 'X'
1950 FE6C F9 88 FDB XBKPNT
1951 IFD MFDCOPT
1952 FCC 'D' *** SWTPC USES 'U' FOR MINIBOOT
1953 FDB MINBOOT
1954 ENDIF MFDCOPT
1954 ENDIF MFDCOPT
1955 IFD CF8OPT
1956 FCC 'D' *** FPGA 8 BIT USES 'D' FOR CFBOOT
1957 FDB CFBOOT
1958 ENDIF CF8OPT
1958 ENDIF CF8OPT
1959 IFD IDEOPT
1960 FE6E 44 FCC 'D' *** XESS FPGA 16 BIT IDE USES 'D' FOR IDEBOOT
1961 FE6F F9 D5 FDB IDEBOOT
1962 ENDIF IDEOPT
1963 IFD DMAFOPT
1964 FCC 'U' *** SWTPC USES 'D' FOR DMAF2 BOOT
1965 FDB DBOOT
1966 ENDIF DMAFOPT
1966 ENDIF DMAFOPT
1967 IFD EXTOPT
1968 FE71 55 FCC 'U' *** IF FPGA, 'U' IS FOR USER
1969 FE72 FC 92 FDB USRCMD
1970 ENDIF EXTOPT
1971 IFD RTCOPT
1972 FCC 'T'
1973 FDB TIMSET
1974 ENDIF RTCOPT
1974 ENDIF RTCOPT
1975 IFD TRAOPT
1976 FCC "T"
1977 FDB TRACE
1978 ENDIF TRAOPT
1978 ENDIF TRAOPT
1979 *
1980 FE74 TABEND EQU *
1981 *
1982 * ** 6809 VECTOR ADDRESSES **
1983 *
1984 * FOLLOWING ARE THE ADDRESSES OF THE VECTOR ROUTINES
1985 * FOR THE 6809 PROCESSOR. DURING INITIALIZATION THEY
1986 * ARE RELOCATED TO RAM FROM $DFC0 TO $DFCF. THEY ARE
1987 * RELOCATED TO RAM SO THAT THE USER MAY REVECTOR TO
1988 * HIS OWN ROUTINES IF HE SO DESIRES.
1989 *
1990 *
1991 FE74 F9 94 RAMVEC FDB SWIE USER-V
1992 FE76 F8 A7 FDB RTI SWI3-V
1993 FE78 F8 A7 FDB RTI SWI2-V
1994 FE7A F8 A7 FDB RTI FIRQ-V
1995 FE7C F8 A7 FDB RTI IRQ-V
1996 FE7E F9 94 FDB SWIE SWI-V
1997 FE80 FF FF FDB $FFFF SVC-VO
1998 FE82 FF FF FDB $FFFF SVC-VL
1999 *
2000 * PRINTABLE MESSAGE STRINGS
2001 *
2002 FE84 0D 0A 00 00 00 MSG1 FCB $D,$A,$0,$0,$0 * 0, CR/LF, 0
2003 FE89 53 59 53 30 39 42 FCC 'SYS09BUG 1.4 FOR '
55 47 20 31 2E 34
20 46 4F 52 20
2004 IFD S3EOPT
2005 FCC 'S3E '
2006 ENDIF S3EOPT
2006 ENDIF S3EOPT
2007 IFD B5XOPT
2008 FCC 'B5-X300 '
2009 ENDIF B5XOPT
2009 ENDIF B5XOPT
2010 IFD S3SOPT
2011 FCC 'S3STARTER '
2012 ENDIF S3SOPT
2012 ENDIF S3SOPT
2013 IFD ADSOPT
2014 FCC 'ADS6809 '
2015 ENDIF ADSOPT
2015 ENDIF ADSOPT
2016 IFD SWTOPT`
2017 FCC 'SWTPC '
2018 ENDIF SWTOPT
2018 ENDIF SWTOPT
2019 IFD XESOPT`
2020 FE9A 58 45 53 53 20 FCC 'XESS '
2021 ENDIF XESOPT
2022 FE9F 20 2D 20 FCC ' - '
2023 FEA2 04 FCB 4
2024 FEA3 4B 0D 0A 00 00 00 MSG2 FCB 'K,$D,$A,$00,$00,$00,$04 K, * CR/LF + 3 NULS
04
2025 FEAA 3E MSG3 FCC '>'
2026 FEAB 04 FCB 4
2027 FEAC 57 48 41 54 3F MSG4 FCC 'WHAT?'
2028 FEB1 04 FCB 4
2029 FEB2 20 2D 20 MSG5 FCC ' - '
2030 FEB5 04 FCB 4'
2031 FEB6 20 20 53 50 3D MSG10 FCC ' SP='
2032 FEBB 04 FCB 4
2033 FEBC 20 20 50 43 3D MSG11 FCC ' PC='
2034 FEC1 04 FCB 4
2035 FEC2 20 20 55 53 3D MSG12 FCC ' US='
2036 FEC7 04 FCB 4
2037 FEC8 20 20 49 59 3D MSG13 FCC ' IY='
2038 FECD 04 FCB 4
2039 FECE 20 20 49 58 3D MSG14 FCC ' IX='
2040 FED3 04 FCB 4
2041 FED4 20 20 44 50 3D MSG15 FCC ' DP='
2042 FED9 04 FCB 4
2043 FEDA 20 20 41 3D MSG16 FCC ' A='
2044 FEDE 04 FCB 4
2045 FEDF 20 20 42 3D MSG17 FCC ' B='
2046 FEE3 04 FCB 4
2047 FEE4 20 20 43 43 3A 20 MSG18 FCC ' CC: '
2048 FEEA 04 FCB 4
2049 FEEB 45 46 48 49 4E 5A MSG19 FCC 'EFHINZVC'
56 43
2050 FEF3 53 31 MSG20 FCC 'S1'
2051 FEF5 04 FCB 4
2052 IFD DATOPT
2053 *
2054 * POWER UP/ RESET/ NMI ENTRY POINT
2055 *
2056 FF00 ORG $FF00
2057 *
2058 *
2059 FF00 8E FF F0 START LDX #IC11 POINT TO DAT RAM IC11
2060 FF03 86 0F LDA #$F GET COMPLIMENT OF ZERO
2061 *
2062 *
2063 * INITIALIZE DAT RAM --- LOADS $F-$0 IN LOCATIONS $0-$F
2064 * OF DAT RAM, THUS STORING COMPLEMENT OF MSB OF ADDRESS
2065 * IN THE DAT RAM. THE COMPLEMENT IS REQUIRED BECAUSE THE
2066 * OUTPUT OF IC11, A 74S189, IS THE INVERSE OF THE DATA
2067 * STORED IN IT.
2068 *
2069 *
2070 FF05 A7 80 DATLP STA ,X+ STORE & POINT TO NEXT RAM LOCATION
2071 FF07 4A DECA GET COMP. VALUE FOR NEXT LOCATION
2072 FF08 26 FB BNE DATLP ALL 16 LOCATIONS INITIALIZED ?
2073 *
2074 * NOTE: IX NOW CONTAINS $0000, DAT RAM IS NO LONGER
2075 * ADDRESSED, AND LOGICAL ADDRESSES NOW EQUAL
2076 * PHYSICAL ADDRESSES.
2077 *
2078 FF0A 86 F0 LDA #$F0
2079 FF0C A7 84 STA ,X STORE $F0 AT $FFFF
2080 FF0E 8E D0 A0 LDX #$D0A0 ASSUME RAM TO BE AT $D000-$DFFF
2081 FF11 10 8E 55 AA LDY #TSTPAT LOAD TEST DATA PATTERN INTO "Y"
2082 FF15 EE 84 TSTRAM LDU ,X SAVE DATA FROM TEST LOCATION
2083 FF17 10 AF 84 STY ,X STORE TEST PATTERN AT $D0A0
2084 FF1A 10 AC 84 CMPY ,X IS THERE RAM AT THIS LOCATION ?
2085 FF1D 27 0B BEQ CNVADR IF MATCH THERE'S RAM, SO SKIP
2086 FF1F 30 89 F0 00 LEAX -$1000,X ELSE POINT 4K LOWER
2087 FF23 8C F0 A0 CMPX #$F0A0 DECREMENTED PAST ZER0 YET ?
2088 FF26 26 ED BNE TSTRAM IF NOT CONTINUE TESTING FOR RAM
2089 FF28 20 D6 BRA START ELSE START ALL OVER AGAIN
2090 *
2091 *
2092 * THE FOLLOWING CODE STORES THE COMPLEMENT OF
2093 * THE MS CHARACTER OF THE FOUR CHARACTER HEX
2094 * ADDRESS OF THE FIRST 4K BLOCK OF RAM LOCATED
2095 * BY THE ROUTINE "TSTRAM" INTO THE DAT RAM. IT
2096 * IS STORED IN RAM IN THE LOCATION THAT IS
2097 * ADDRESSED WHEN THE PROCESSOR ADDRESS IS $D---,
2098 * THUS IF THE FIRST 4K BLOCK OF RAM IS FOUND
2099 * WHEN TESTING LOCATION $70A0, MEANING THERE
2100 * IS NO RAM PHYSICALLY ADDRESSED IN THE RANGE
2101 * $8000-$DFFF, THEN THE COMPLEMENT OF THE
2102 * "7" IN THE $70A0 WILL BE STORED IN
2103 * THE DAT RAM. THUS WHEN THE PROCESSOR OUTPUTS
2104 * AN ADDRESS OF $D---, THE DAT RAM WILL RESPOND
2105 * BY RECOMPLEMENTING THE "7" AND OUTPUTTING THE
2106 * 7 ONTO THE A12-A15 ADDRESS LINES. THUS THE
2107 * RAM THAT IS PHYSICALLY ADDRESSED AT $7---
2108 * WILL RESPOND AND APPEAR TO THE 6809 THAT IT
2109 * IS AT $D--- SINCE THAT IS THE ADDRESS THE
2110 * 6809 WILL BE OUTPUTING WHEN THAT 4K BLOCK
2111 * OF RAM RESPONDS.
2112 *
2113 *
2114 FF2A EF 84 CNVADR STU ,X RESTORE DATA AT TEST LOCATION
2115 FF2C 1F 10 TFR X,D PUT ADDR. OF PRESENT 4K BLOCK IN D
2116 FF2E 43 COMA COMPLEMENT MSB OF THAT ADDRESS
2117 FF2F 44 LSRA PUT MS 4 BITS OF ADDRESS IN
2118 FF30 44 LSRA LOCATION D0-D3 TO ALLOW STORING
2119 FF31 44 LSRA IT IN THE DYNAMIC ADDRESS
2120 FF32 44 LSRA TRANSLATION RAM.
2121 FF33 B7 FF FD STA $FFFD STORE XLATION FACTOR IN DAT "D"
2122 *
2123 FF36 10 CE DF C0 LDS #STACK INITIALIZE STACK POINTER
2124 *
2125 *
2126 * THE FOLLOWING CHECKS TO FIND THE REAL PHYSICAL ADDRESSES
2127 * OF ALL 4K BLKS OF RAM IN THE SYSTEM. WHEN EACH 4K BLK
2128 * OF RAM IS LOCATED, THE COMPLEMENT OF IT'S REAL ADDRESS
2129 * IS THEN STORED IN A "LOGICAL" TO "REAL" ADDRESS XLATION
2130 * TABLE THAT IS BUILT FROM $DFD0 TO $DFDF. FOR EXAMPLE IF
2131 * THE SYSTEM HAS RAM THAT IS PHYSICALLY LOCATED (WIRED TO
2132 * RESPOND) AT THE HEX LOCATIONS $0--- THRU $F---....
2133 *
2134 * 0 1 2 3 4 5 6 7 8 9 A B C D E F
2135 * 4K 4K 4K 4K 4K 4K 4K 4K -- 4K 4K 4K 4K -- -- --
2136 *
2137 * ....FOR A TOTAL OF 48K OF RAM, THEN THE TRANSLATION TABLE
2138 * CREATED FROM $DFD0 TO $DFDF WILL CONSIST OF THE FOLLOWING....
2139 *
2140 * 0 1 2 3 4 5 6 7 8 9 A B C D E F
2141 * 0F 0E 0D 0C 0B 0A 09 08 06 05 00 00 04 03 F1 F0
2142 *
2143 *
2144 * HERE WE SEE THE LOGICAL ADDRESSES OF MEMORY FROM $0000-$7FFF
2145 * HAVE NOT BEEN SELECTED FOR RELOCATION SO THAT THEIR PHYSICAL
2146 * ADDRESS WILL = THEIR LOGICAL ADDRESS; HOWEVER, THE 4K BLOCK
2147 * PHYSICALLY AT $9000 WILL HAVE ITS ADDRESS TRANSLATED SO THAT
2148 * IT WILL LOGICALLY RESPOND AT $8000. LIKEWISE $A,$B, AND $C000
2149 * WILL BE TRANSLATED TO RESPOND TO $9000,$C000, AND $D000
2150 * RESPECTIVELY. THE USER SYSTEM WILL LOGICALLY APPEAR TO HAVE
2151 * MEMORY ADDRESSED AS FOLLOWS....
2152 *
2153 * 0 1 2 3 4 5 6 7 8 9 A B C D E F
2154 * 4K 4K 4K 4K 4K 4K 4K 4K 4K 4K -- -- 4K 4K -- --
2155 *
2156 *
2157 FF3A 10 8E DF D0 LDY #LRARAM POINT TO LOGICAL/REAL ADDR. TABLE
2158 FF3E A7 2D STA 13,Y STORE $D--- XLATION FACTOR AT $DFDD
2159 FF40 6F 2E CLR 14,Y CLEAR $DFDE
2160 FF42 86 F0 LDA #$F0 DESTINED FOR IC8 AN MEM EXPANSION ?
2161 FF44 A7 2F STA 15,Y STORE AT $DFDF
2162 FF46 86 0C LDA #$0C PRESET NUMBER OF BYTES TO CLEAR
2163 FF48 6F A6 CLRLRT CLR A,Y CLEAR $DFDC THRU $DFD0
2164 FF4A 4A DECA SUB. 1 FROM BYTES LEFT TO CLEAR
2165 FF4B 2A FB BPL CLRLRT CONTINUE IF NOT DONE CLEARING
2166 FF4D 30 89 F0 00 FNDRAM LEAX -$1000,X POINT TO NEXT LOWER 4K OF RAM
2167 FF51 8C F0 A0 CMPX #$F0A0 TEST FOR DECREMENT PAST ZERO
2168 FF54 27 22 BEQ FINTAB SKIP IF FINISHED
2169 FF56 EE 84 LDU ,X SAVE DATA AT CURRENT TEST LOCATION
2170 FF58 10 8E 55 AA LDY #TSTPAT LOAD TEST DATA PATTERN INTO Y REG.
2171 FF5C 10 AF 84 STY ,X STORE TEST PATT. INTO RAM TEST LOC.
2172 FF5F 10 AC 84 CMPY ,X VERIFY RAM AT TEST LOCATION
2173 FF62 26 E9 BNE FNDRAM IF NO RAM GO LOOK 4K LOWER
2174 FF64 EF 84 STU ,X ELSE RESTORE DATA TO TEST LOCATION
2175 FF66 10 8E DF D0 LDY #LRARAM POINT TO LOGICAL/REAL ADDR. TABLE
2176 FF6A 1F 10 TFR X,D PUT ADDR. OF PRESENT 4K BLOCK IN D
2177 FF6C 44 LSRA PUT MS 4 BITS OF ADDR. IN LOC. D0-D3
2178 FF6D 44 LSRA TO ALLOW STORING IT IN THE DAT RAM.
2179 FF6E 44 LSRA
2180 FF6F 44 LSRA
2181 FF70 1F 89 TFR A,B SAVE OFFSET INTO LRARAM TABLE
2182 FF72 88 0F EORA #$0F INVERT MSB OF ADDR. OF CURRENT 4K BLK
2183 FF74 A7 A5 STA B,Y SAVE TRANSLATION FACTOR IN LRARAM TABLE
2184 FF76 20 D5 BRA FNDRAM GO TRANSLATE ADDR. OF NEXT 4K BLK
2185 FF78 86 F1 FINTAB LDA #$F1 DESTINED FOR IC8 AND MEM EXPANSION ?
2186 FF7A 10 8E DF D0 LDY #LRARAM POINT TO LRARAM TABLE
2187 FF7E A7 2E STA 14,Y STORE $F1 AT $DFCE
2188 *
2189 * THE FOLLOWING CHECKS TO SEE IF THERE IS A 4K BLK OF
2190 * RAM LOCATED AT $C000-$CFFF. IF NONE THERE IT LOCATES
2191 * THE NEXT LOWER 4K BLK AN XLATES ITS ADDR SO IT
2192 * LOGICALLY RESPONDS TO THE ADDRESS $C---.
2193 *
2194 *
2195 FF80 86 0C LDA #$0C PRESET NUMBER HEX "C"
2196 FF82 E6 A6 FINDC LDB A,Y GET ENTRY FROM LRARAM TABLE
2197 FF84 26 05 BNE FOUNDC BRANCH IF RAM THIS PHYSICAL ADDR.
2198 FF86 4A DECA ELSE POINT 4K LOWER
2199 FF87 2A F9 BPL FINDC GO TRY AGAIN
2200 FF89 20 14 BRA XFERTF
2201 FF8B 6F A6 FOUNDC CLR A,Y CLR XLATION FACTOR OF 4K BLOCK FOUND
2202 FF8D E7 2C STB $C,Y GIVE IT XLATION FACTOR MOVING IT TO $C---
2203 *
2204 * THE FOLLOWING CODE ADJUSTS THE TRANSLATION
2205 * FACTORS SUCH THAT ALL REMAINING RAM WILL
2206 * RESPOND TO A CONTIGUOUS BLOCK OF LOGICAL
2207 * ADDRESSES FROM $0000 AND UP....
2208 *
2209 FF8F 4F CLRA START AT ZERO
2210 FF90 1F 21 TFR Y,X START POINTER "X" START OF "LRARAM" TABLE.
2211 FF92 E6 A6 COMPRS LDB A,Y GET ENTRY FROM "LRARAM" TABLE
2212 FF94 27 04 BEQ PNTNXT IF IT'S ZER0 SKIP
2213 FF96 6F A6 CLR A,Y ELSE ERASE FROM TABLE
2214 FF98 E7 80 STB ,X+ AND ENTER ABOVE LAST ENTRY- BUMP
2215 FF9A 4C PNTNXT INCA GET OFFSET TO NEXT ENTRY
2216 FF9B 81 0C CMPA #$0C LAST ENTRY YET ?
2217 FF9D 2D F3 BLT COMPRS
2218 *
2219 * THE FOLLOWING CODE TRANSFER THE TRANSLATION
2220 * FACTORS FROM THE LRARAM TABLE TO IC11 ON
2221 * THE MP-09 CPU CARD.
2222 *
2223 FF9F 8E FF F0 XFERTF LDX #IC11 POINT TO DAT RAM IC11
2224 FFA2 C6 10 LDB #$10 GET NO. OF BYTES TO MOVE
2225 FFA4 A6 A0 FETCH LDA ,Y+ GET BYTE AND POINT TO NEXT
2226 FFA6 A7 80 STA ,X+ POKE XLATION FACTOR IN IC11
2227 FFA8 5A DECB SUB 1 FROM BYTES TO MOVE
2228 FFA9 26 F9 BNE FETCH CONTINUE UNTIL 16 MOVED
2229 *
2230 ELSE
2231 LRA RTS
2232 START LDS #STACK INITIALIZE STACK POINTER
2233 CLRB
2234 ENDIF DATOPT
2234 ENDIF DATOPT
2235 *
2236 FFAB 53 COMB SET "B" NON-ZERO
2237 FFAC F7 DF E2 STB ECHO TURN ON ECHO FLAG
2238 FFAF 16 F8 62 LBRA MONITOR INITIALIZATION IS COMPLETE
2239 *
2240 ** INTERRUPT JUMP VECTORS
2241 *
2242 FFB2 6E 9F DF C0 V1 JMP [STACK]
2243 FFB6 6E 9F DF C4 V2 JMP [SWI2]
2244 FFBA 6E 9F DF C6 V3 JMP [FIRQ]
2245 FFBE 6E 9F DF C8 V4 JMP [IRQ]
2246 FFC2 6E 9F DF CA V5 JMP [SWI]
2247 *
2248 * SWI3 ENTRY POINT
2249 *
2250 FFC6 1F 43 SWI3E TFR S,U
2251 FFC8 AE 4A LDX 10,U *$FFC8
2252 FFCA E6 80 LDB ,X+
2253 FFCC AF 4A STX 10,U
2254 FFCE 4F CLRA
2255 FFCF 58 ASLB
2256 FFD0 49 ROLA
2257 FFD1 BE DF CC LDX SVCVO
2258 FFD4 8C FF FF CMPX #$FFFF
2259 FFD7 27 0F BEQ SWI3Z
2260 FFD9 30 8B LEAX D,X
2261 FFDB BC DF CE CMPX SVCVL
2262 FFDE 22 08 BHI SWI3Z
2263 FFE0 34 10 PSHS X
2264 FFE2 EC C4 LDD ,U
2265 FFE4 AE 44 LDX 4,U
2266 FFE6 6E F1 JMP [,S++]
2267 FFE8 37 1F SWI3Z PULU A,B,X,CC,DP
2268 FFEA EE 42 LDU 2,U
2269 FFEC 6E 9F DF C2 JMP [SWI3]
2270 *
2271 * 6809 VECTORS
2272 *
2273 FFF0 ORG $FFF0
2274 FFF0 FF B2 FDB V1 USER-V
2275 FFF2 FF C6 FDB SWI3E SWI3-V
2276 FFF4 FF B6 FDB V2 SWI2-V
2277 FFF6 FF BA FDB V3 FIRQ-V
2278 FFF8 FF BE FDB V4 IRQ-V
2279 FFFA FF C2 FDB V5 SWI-V
2280 FFFC FF B2 FDB V1 NMI-V
2281 FFFE FF 00 FDB START RESTART-V
0005 END START
0006 END
Program + Init Data = 3583 bytes
Error count = 0
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