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Assembler release DWC_2.0 version 2.11May 6, 2004 (c) Motorola (free ware)0001 NAM SYS09BUG FOR XESS0000 INCLUDE "opt_xes.txt"0001 *0002 ***************************************************0003 * OPTION SWITCHES0004 ***************************************************0005 *0006 *0007 ** THE CONTROL PORT CAN ONLY BE ONE OF THESE0008 ** NOTE THAT THE ACIA WILL ALWAYS BE PRESET0009 ** FOR LOADING AND SAVING S1 RECORDS0010 *0011 *S3EOPT EQU $FF SPARTAN3E STARTER0012 *S3SOPT EQU $FF SPARTAN3 STARTER FPGA VIDEO & PS2 KEYBOARD0013 *B5XOPT EQU $FF B5-X300 FPGA VIDEO & PS2 KEYBOARD0014 00FF XESOPT EQU $FF XESS XSA-3S100 & XST-3.00015 *ADSOPT EQU $FF ADS6809 & DG640 VIDEO DISPAY0016 *SWTOPT EQU $FF SWTP ACIA SERIAL CONTROL PORT0017 *0002 END0000 INCLUDE "sys09equ.txt"0001 *0002 ***************************************************0003 * MEMORY MAP EQUATES *0004 ***************************************************0005 E000 MONIO EQU $E000 I/O SPACE0006 IFD S3EOPT0007 MONRAM EQU $7FC00008 ELSE0009 DFC0 MONRAM EQU $DFC0 STACK SPACE0010 ENDIF S3EOPT0011 F800 MONROM EQU $F800 START OF ROM0012 IFD S3SOPT0013 MONEXT EQU $F000 START OF EXTENDED COMMANDS0014 EXTCMD EQU $00 EXTENDED OFFSET0015 ENDIF S3SOPT0015 ENDIF S3SOPT0016 IFD XESOPT0017 F000 MONEXT EQU $F000 START OF EXTENDED COMMANDS0018 0000 EXTCMD EQU $00 EXTENDED OFFSET0019 ENDIF XESOPT0020 ***************************************************00210022 IFD S3EOPT0023 *0024 * DIGILENT SPARTAN 3E STARTER0025 *0026 ACIAOPT EQU $FF ACIA AT PORT 00027 PS2OPT EQU $FF PS2 KEYBOARD AT $E0200028 VDUOPT EQU $FF VDU AT $E0300029 TRAOPT EQU $FF PIA TRACE TIMER0030 ENDIF S3EOPT0030 ENDIF S3EOPT0031 *0032 IFD S3SOPT0033 *0034 * DIGILENT SPARTAN 3 STARTER0035 *0036 ACIAOPT EQU $FF ACIA AT PORT 00037 PS2OPT EQU $FF PS2 KEYBOARD AT $E0200038 VDUOPT EQU $FF VDU AT $E0300039 CF8OPT EQU $FF COMPACT FLASH AT $E0400040 DATOPT EQU $FF DYNAMIC ADDRESS TRANSLATION0041 EXTOPT EQU $FF EXTENDED COMMANDS0042 ENDIF S3SOPT0042 ENDIF S3SOPT0043 *0044 IFD B5XOPT0045 *0046 * BURCHED B5-X3000047 *0048 ACIAOPT EQU $FF ACIA AT PORT 00049 PS2OPT EQU $FF PS2 KEYBOARD AT $E0200050 VDUOPT EQU $FF VDU AT $E0300051 CF8OPT EQU $FF COMPACT FLASH AT $E0400052 DATOPT EQU $FF DYNAMIC ADDRESS TRANSLATION0053 ENDIF B5XOPT0053 ENDIF B5XOPT0054 *0055 IFD XESOPT0056 *0057 * XESS XSA-3S1000 & XST-3.00058 *0059 00FF ACIAOPT EQU $FF ACIA AT PORT 00060 00FF PS2OPT EQU $FF PS2 KEYBOARD AT $E0200061 00FF VDUOPT EQU $FF VDU AT $E0300062 00FF IDEOPT EQU $FF XESS IDE AT $E1000063 00FF DATOPT EQU $FF DYNAMIC ADDRESS TRANSLATION0064 00FF EXTOPT EQU $FF EXTENDED COMMANDS0065 ENDIF XESOPT0066 *0067 IFD ADSOPT0068 *0069 * ACKERMAN DIGITAL ADS68090070 *0071 DG640OPT EQU $FF DG640 VDU AT $E8000072 *RTCOPT EQU $FF REAL TIME CLOCK0073 PRTOPT EQU $FF PRINTER DRIVERS0074 MFDCOPT EQU $FF MINIFLOPPY 5.25" DISK BOOT0075 ENDIF ADSOPT0075 ENDIF ADSOPT0076 *0077 IFD SWTOPT0078 *0079 * SOUTH WEST TECHNICAL PRODUCTS COMPUTER0080 *0081 ACIAOPT EQU $FF ACIA AT PORT 00082 DMAFOPT EQU $FF DMAF2 8" FLOPPY DISK BOOT0083 MFDCOPT EQU $FF MINIFLOPPY 5.25" DISK BOOT0084 DATOPT EQU $FF DYNAMIC ADDRESS TRANSLATION0085 ENDIF0085 ENDIF0086 *0087 IFD ACIAOPT0088 *0089 ***************************************************0090 * SERIAL PORT *0091 ***************************************************0092 *0093 ** ACIA SITS ON PORT 00094 *0095 E000 ACIAS EQU MONIO+$00 CONTROL PORT0096 *0097 ENDIF ACIAOPT0098 IFD MFDCOPT0099 *0100 ***************************************************0101 * MINIFLOPPY DRIVE *0102 ***************************************************0103 *0104 ** FLOPPY DISK CONTROLLER SITS ON PORT 10105 *0106 DRVFDC EQU MONIO+$140107 CMDFDC EQU MONIO+$180108 SECFDC EQU MONIO+$1A0109 DATFDC EQU MONIO+$1B0110 ENDIF MFDCOPT0110 ENDIF MFDCOPT0111 IFD PS2OPT0112 *0113 ***************************************************0114 * VDU8 PS/2 KEYBOARD PORT *0115 ***************************************************0116 *0117 ** KEYBOARD SITS ON PORT 20118 *0119 E020 PS2KBD EQU MONIO+$20 PS/2 KEYBOARD PORT0120 ENDIF PS2OPT0121 IFD VDUOPT0122 *0123 ***************************************************0124 * VDU8 DISPLAY DRIVER EQUATES *0125 ***************************************************0126 *0127 ** VDU8 DISPLAY SITS ON PORT 30128 *0129 E030 VDU EQU MONIO+$300130 0000 VDUCHR EQU 0 CHARACTER REGISTER0131 0001 VDUATT EQU 1 ATTRIBUTE REGISTER0132 0002 VDUCOL EQU 2 CURSOR COLUMN0133 0003 VDUROW EQU 3 CURSOR ROW0134 0004 VDUOFF EQU 4 ROW OFFSET0135 *0136 0050 LINLEN EQU 80 LENGTH OF A LINE0137 0019 NUMLIN EQU 25 NUMBER OF LINES0138 ENDIF VDUOPT0139 *0140 IFD CF8OPT0141 *0142 ***************************************************0143 * COMPACT FLASH EQUATES 8 BIT TRANSFER *0144 ***************************************************0145 *0146 ** COMPACT FLASH SITS AT PORT 40147 *0148 CF_BASE EQU MONIO+$400149 CF_DATA EQU CF_BASE+00150 CF_ERROR EQU CF_BASE+1 ; read error0151 CF_FEATURE EQU CF_BASE+1 ; write feature0152 CF_SECCNT EQU CF_BASE+20153 CF_SECNUM EQU CF_BASE+30154 CF_CYLLO EQU CF_BASE+40155 CF_CYLHI EQU CF_BASE+50156 CF_HEAD EQU CF_BASE+60157 CF_STATUS EQU CF_BASE+7 ; read status0158 CF_COMAND EQU CF_BASE+7 ; write command0159 *0160 * Command Equates0161 *0162 CMDREAD EQU $20 ; Read Single sector0163 CMDWRITE EQU $30 ; Write Single sector0164 CMDFEATURE EQU $EF0165 FEAT8BIT EQU $01 ; enable 8 bit transfers0166 HEADLBA EQU $E00167 *0168 * Status bit equates0169 *0170 BUSY EQU $800171 DRDY EQU $400172 DRQ EQU $080173 ERR EQU $010174 *0175 ENDIF CF8OPT0175 ENDIF CF8OPT0176 *0177 IFD IDEOPT0178 *0179 ***************************************************0180 * COMPACT FLASH EQUATES 16 BIT TRANSFER (XESS) *0181 ***************************************************0182 *0183 ** COMPACT FLASH SITS AT PORT 40184 *0185 E100 CF_BASE EQU MONIO+$01000186 E100 CF_DATA EQU CF_BASE+00187 E102 CF_ERROR EQU CF_BASE+2 ; read error0188 E102 CF_FEATURE EQU CF_BASE+2 ; write feature0189 E104 CF_SECCNT EQU CF_BASE+40190 E106 CF_SECNUM EQU CF_BASE+60191 E108 CF_CYLLO EQU CF_BASE+80192 E10A CF_CYLHI EQU CF_BASE+100193 E10C CF_HEAD EQU CF_BASE+120194 E10E CF_STATUS EQU CF_BASE+14 ; read status0195 E10E CF_COMAND EQU CF_BASE+14 ; write command0196 E11E CF_AUX EQU CF_BASE+300197 *0198 * Command Equates0199 *0200 0020 CMDREAD EQU $20 ; Read Single sector0201 0030 CMDWRITE EQU $30 ; Write Single sector0202 0006 AUXRESET EQU $06 ; Reset IDE0203 0002 AUXRSTREL EQU $02 ; Reset release IRQ masked0204 00E0 HEADLBA EQU $E00205 *0206 * Status bit equates0207 *0208 0080 BUSY EQU $800209 0040 DRDY EQU $400210 0008 DRQ EQU $080211 0001 ERR EQU $010212 *0213 ENDIF CF8OPT0214 *0215 IFD RTCOPT0216 *0217 **************************************************0218 * MM58167A REAL TIME CLOCK MEMORY MAP:0219 **************************************************0220 *0221 ** REAL TIME CLOCK SITS ON PORT 4 AND PORT 50222 *0223 CLOCK EQU MONIO+$40 CLOCK BASE ADDRESS AND REGISTERS0224 *0225 * COUNTER AND COMPARITOR REGISTERS:0226 *0227 * Both the Clock Counter and Clock Comparitor0228 * consist of 8 registers for holding the time.0229 * The register offsets from the Counter and0230 * Comparitor registers are listed above.0231 *0232 COUNTR EQU CLOCK+00233 CMPRAM EQU CLOCK+8 COMPARITOR REGISTERS0234 *0235 * CLOCK REGISTER OFFSETS:0236 * These register offsets are used for the CLOCK0237 * and comparitor ram CMPRAM.0238 *0239 S10000 EQU 0 TEN THOUNSANDTHS OF SECONDS0240 S100 EQU 1 HUNDRETHS AND TENTHS OF SECONDS0241 SECOND EQU 20242 MINUIT EQU 30243 HOUR EQU 40244 WKDAY EQU 50245 MTHDAY EQU 60246 MONTH EQU 70247 *0248 * INTERRUPT OUTPUT REGISTERS:0249 *0250 * An interrupt output may be generated at the0251 * following rates by setting the appropriate bit0252 * in the Interrupt Control Register (CINTCR).0253 * The Interrupt Status Register (CINTSR) must be0254 * read to clear the interrupt and will return0255 * the source of the interrupt.0256 *0257 * 1/Month Bit 70258 * 1/Week Bit 60259 * 1/Day Bit 50260 * 1/Hour Bit 40261 * 1/Minuite Bit 30262 * 1/Second Bit 20263 * 10/Second Bit 10264 * Comparitor Bit 00265 *0266 CINTSR EQU CLOCK+16 INTERRUPT STATUS REGISTER0267 CINTCR EQU CLOCK+17 INTERRUPT CONTROL REGISTER0268 *0269 * COUNTER AND RAM RESETS; GO COMMAND.0270 *0271 * The counter and comparitor may be reset0272 * by writing $FF into CTRRES and CMPRES0273 * respectivly.0274 * A write to the Go command register (GOCMND)0275 * will reset the 1/1000ths, 1/100ths and 1/10ths0276 * of a second counter.0277 *0278 CTRRES EQU CLOCK+18 COUNTER RESET0279 CMPRES EQU CLOCK+19 COMPARITOR RAM RESET0280 GOCMND EQU CLOCK+21 GO COMMAND0281 *0282 * CLOCK STATUS REGISTER.0283 *0284 * The counter takes 61 usec. to rollover for0285 * every 1KHz clock pulse. If the Status bit is0286 * set after reading the counter, the counter0287 * should be re-read to ensure the time is correct.0288 *0289 CLKSTA EQU CLOCK+20 STATUS BIT0290 SBYINT EQU CLOCK+22 STANDBY INTERRUPT0291 TSTMOD EQU CLOCK+31 TEST MODE REGISTER0292 ENDIF RTCOPT0292 ENDIF RTCOPT0293 *0294 IFD TRAOPT0295 *0296 **************************************************0297 * PIA INTERRUPT TIMER0298 **************************************************0299 *0300 ** PIA INTERRUPT TIMER SITS ON PORT 70301 *0302 ** PIA TIMER FOR SINGLE STEP / TRACE0303 *0304 * TADATA = Output = Timer preset register0305 * TACTRL - CA1 = input = rising edge = NMI0306 * - CA2 = Output = Timer Reset (Active High)0307 * TBDATA = Input = Timer read back register0308 * TBCTRL - CB1 = input = rising edge = FIRQ0309 * - CB2 = output = strobe low on write to TBDATA = Timer Preset0310 *0311 * CRA0 = 0 CA1 IRQ DISAB, CRA0 = 1 CA1 IRQ ENAB0312 * CRA1 = 1 CA1 Rising edge IRQ0313 * CRA2 = 0 TADATA = Data Direction, CRA2 = 1 TADATA = I/O Register0314 * CRA3 = 0 CA2 = 0 output, CRA3 = 1 CA2 = 10315 * CRA4 = 1 ] CA2 = Set/Reset output0316 * CRA5 = 1 ]0317 * CRA6 = X CA2 Input Interrupt Flag0318 * CRA7 = X CA1 Interrupt Flag0319 *0320 * CRB0 = 0 CB1 IRQ DISAB, CRB0 = 1 CA1 IRQ ENAB0321 * CRB1 = 1 CB1 Rising edge IRQ0322 * CRB2 = 0 TBDATA = Data Direction, CRB2 = 1 TBDATA = I/O Register0323 * CRB3 = 0 CB2 = 0 output, CRB3 = 1 CB2 = 10324 * CRB4 = 1 ] CB2 = Set/Reset output0325 * CRB5 = 1 ]0326 * CRB6 = X CB2 Input Interrupt Flag0327 * CRB7 = X CB1 Interrupt Flag0328 *0329 * DDRA = 0 TADATA = Input, DDRA = 1 TADATA = Output0330 * DDRB = 0 TBDATA = Input, DDRB = 1 TBDATA = Output0331 *0332 TADATA EQU MONIO+$70 Timer preset port0333 TACTRL EQU MONIO+$710334 TBDATA EQU MONIO+$72 Timer read back port0335 TBCTRL EQU MONIO+$730336 *0337 TRADEL EQU 13 Number of E cycles for RTI (May need to be fudged)0338 *0339 ENDIF TRAOPT0339 ENDIF TRAOPT0340 IFD ADSOPT0341 *0342 ***************************************************0343 * SERIAL PORT FOR DG640 *0344 ***************************************************0345 *0346 ** SET UP FOR ACKERMAN DIGITAL ADS68090347 ** THE ADS6809 S100 BOAD HAS AN ON BOARD ACIA0348 *0349 ACIAS EQU MONIO+$400 CONTROL PORT0350 *0351 ENDIF ADSOPT0351 ENDIF ADSOPT0352 IFD PRTOPT0353 *0354 ***************************************************0355 * PRINTER INTERFACE *0356 ***************************************************0357 *0358 PADATA EQU MONIO+$4040359 PACTRL EQU MONIO+$4050360 PBDATA EQU MONIO+$4060361 PBCTRL EQU MONIO+$4070362 *0363 ** CB1 ACK. I/P0364 ** CB2 STB. O/P0365 ** PB0 - PB7 DATA 1 - 8 O/P0366 ** PORT A BIT ASSIGNMENT0367 *0368 PBUSY EQU $80 I/P0369 PEMPTY EQU $40 I/P0370 SELECT EQU $20 I/P0371 PERROR EQU $10 I/P0372 PRESET EQU %00000100 O/P PA3 = 00373 AUTOFD EQU %00001000 O/P PA2 = 00374 DIRMSK EQU %000011000375 ENDIF PRTOPT0375 ENDIF PRTOPT0376 IFD DG640OPT0377 *0378 ***************************************************0379 * DG640 MEMORY MAPPED DISPLAY DRIVER VARIABLES *0380 ***************************************************0381 *0382 ** VIDEO DISPLAY DEFINITIONS0383 *0384 SCREEN EQU MONIO+$0800 START OF SCREEN MEMORY0385 LINLEN EQU 64 LENGTH OF A LINE0386 NUMLIN EQU 16 NUMBER OF LINES0387 SCNLEN EQU $400 LENGTH OF SCREEN0388 ENDIF DG640OPT0388 ENDIF DG640OPT0389 *0390 IFD DMAFOPT0391 *0392 ***************************************************0393 * DMAF2 8" DRIVE *0394 ***************************************************0395 *0396 ADDREG EQU $F000 ADDRESS REGISTER0397 CNTREG EQU $F002 COUNT REGISTER0398 CCREG EQU $F010 CHANNEL CONTROL REGISTER0399 PRIREG EQU $F014 DMA PRIORITY REGISTER0400 AAAREG EQU $F015 ???0401 BBBREG EQU $F016 ???0402 COMREG EQU $F020 1791 COMMAND REGISTER0403 SECREG EQU $F022 SECTOR REGISTER0404 DRVREG EQU $F024 DRIVE SELECT LATCH0405 CCCREG EQU $F040 ???0406 ENDIF DMAFOPT0406 ENDIF DMAFOPT0407 IFD DATOPT0408 **************************************************0409 * DYNAMIC ADDRESS TRANSLATION REGISTERS *0410 **************************************************0411 *0412 FFF0 IC11 EQU $FFF0 DAT RAM CHIP0413 55AA TSTPAT EQU $55AA TEST PATTERN0414 ENDIF DATOPT0415 *0003 END0000 INCLUDE "sys09ide.txt"0001 *0002 ** SYS09BUG MONITOR EXTENSIONS0003 *0004 * FOR SYS09BUG ON THE XESS XSA-3S100 / XST-3.00005 * WITH I/O MAPPED AT $XE0000006 * 16 BIT IDE MAPPED AT $E1000007 * AND ROM MAPPED AT $XF0000008 *0009 *sys09ide.txt page 20011 *0012 ***************************************************0013 * Serial PROM register0014 ***************************************************0015 *0016 ** CONFIGURATION PROM DEFINITIONS0017 *0018 E0C0 PROMREG EQU MONIO+$C00019 0001 PCLKHI EQU $01 Toggle PROM Clock High0020 0000 PCLKLO EQU $00 Toggle PROM Clock Low0021 0002 PRSTHI EQU $02 Toggle PROM Reset High0022 0000 PRSTLO EQU $00 Toggle PROM Reset Low0023 AA55 SYNCHI EQU $AA55 Synch Pattern High Word0024 FF00 SYNCLO EQU $FF00 Synch Pattern Low Word0025 *0026 *0027 ***************************************************0028 * START OF ROM *0029 ***************************************************0030 *0031 F800 MONITV EQU MONROM+0 FDB MONITOR0032 F802 NXTCMV EQU MONROM+2 FDB NEXTCMD0033 F804 INCHV EQU MONROM+4 FDB INCH0034 F806 INCHEV EQU MONROM+6 FDB INCHE0035 F808 INCHKV EQU MONROM+8 FDB INCHEK0036 F80A OUTCHV EQU MONROM+10 FDB OUTCH0037 F80C PDATAV EQU MONROM+12 FDB PDATA0038 F80E PCRLFV EQU MONROM+14 FDB PCRLF0039 F810 PSTRGV EQU MONROM+16 FDB PSTRNG0040 F812 LRAV EQU MONROM+18 FDB LRA0041 *0042 * Condition code flags0043 *0044 0001 CFLAG EQU $01 CARRY FLAG0045 0002 VFLAG EQU $02 OVERFLOW FLAG0046 0004 ZFLAG EQU $04 ZERO FLAG0047 0008 NFLAG EQU $08 NEGATIVE FLAG0048 0010 IFLAG EQU $10 IRQ MASK CC0049 0020 HFLAG EQU $20 HALF CARRY0050 0040 FFLAG EQU $40 FIRQ MASK CC0051 0080 EFLAG EQU $80 ENTIRE FLAG0052 *0053 * Serial Port0054 *0055 E000 ACIAC1 EQU ACIAS0056 E001 ACIAD1 EQU ACIAS+10057 04E2 DELCON EQU 1250 Delay (Processor clock in MHz * 50)0058 *0059 * XMODEM Control characters0060 *0061 0001 SOH EQU $010062 0004 EOT EQU $040063 0006 ACK EQU $060064 0015 NAK EQU $150065 0018 CAN EQU $180066 *0067 * Some Disk Constants0068 *0069 0100 RMAXTRK EQU 2560070 00FF RMAXSEC EQU 2550071 FE01 RTOTSEC EQU RMAXTRK*RMAXSEC-RMAXSEC0072 *0073 * RAM SPACE0074 *0075 * PUT THIS DOWN THE BOTTOM OF MEMORY0076 *0077 0100 ORG $01000078 0100 DRVNUM RMB 10079 0101 TRACK RMB 10080 0102 SECTOR RMB 10081 0103 CHKSUM RMB 10082 0104 BLKNUM RMB 1 Xmodem block number0083 0105 BYTCNT RMB 1 Xmodem byte count0084 0106 XSTATE RMB 2 Xmodem State Vector0085 0108 DELCNT RMB 3 $00,$00,$00 Xmodem Poll timer0086 010B MAXTRK RMB 10087 010C MAXSEC RMB 10088 0200 ORG $02000089 *0090 * SECTOR BUFFER0091 *0092 0200 BUFFER RMB 2560093 *0094 ****************************************0095 *0096 * START OF EXTENSION COMMANDS0097 *0098 ****************************************0099 *0100 F000 ORG MONEXT0101 F000 F0 02 FDB NEXTEXT Jump to next extended command0102 *0103 ***** NEXTCMD *****0104 *0105 F002 AD 9F F8 06 NEXTEXT JSR [INCHEV] GET ONE CHAR. FROM TERMINAL0106 F006 84 7F ANDA #$7F STRIP PARITY FROM CHAR.0107 F008 1F 89 TFR A,B0108 F00A 86 20 LDA #$200109 F00C AD 9F F8 0A JSR [OUTCHV] PRNT SPACE0110 F010 C1 60 CMPB #$600111 F012 2F 02 BLE NXTEX00112 F014 C0 20 SUBB #$200113 *0114 ***** DO TABLE LOOKUP *****0115 * FOR COMMAND FUNCTIONS0116 *0117 F016 8E F0 2C NXTEX0 LDX #EXTTAB POINT TO JUMP TABLE0118 F019 E1 80 NXTEX1 CMPB ,X+ DOES COMMAND MATCH TABLE ENTRY ?0119 F01B 27 0D BEQ JMPEXT BRANCH IF MATCH FOUND0120 F01D 30 02 LEAX 2,X POINT TO NEXT ENTRY IN TABLE0121 F01F 8C F0 35 CMPX #EXTEND REACHED END OF TABLE YET ?0122 F022 26 F5 BNE NXTEX1 IF NOT END, CHECK NEXT ENTRY0123 F024 8E F0 35 LDX #MSGWHAT POINT TO MSG "WHAT?"0124 F027 16 02 29 LBRA PDATA1 PRINT MSG AND RETURN0125 F02A 6E 94 JMPEXT JMP [,X] JUMP TO COMMAND ROUTINE0126 *0127 * EXTENDED COMMAND JUMP TABLE0128 *0129 F02C EXTTAB EQU *0130 F02C 42 FCC 'B' BOOT FLEX0131 F02D F0 3E FDB UBSUB0132 F02F 46 FCC 'F' FORMAT IDE DISK0133 F030 F0 EA FDB UFSUB0134 F032 58 FCC 'X' XMODEM ROM DISK UPLOAD0135 F033 F2 BC FDB UXSUB0136 *0137 F035 EXTEND EQU *0138 *0139 F035 57 48 41 54 20 3F MSGWHAT FCC "WHAT ?"0140 F03B 0A 0D 04 FCB $0A,$0D,$040141 *0142 * GO TO FLEX RESIDENT IN MEMORY0143 *0144 F03E 8E CD 00 UBSUB LDX #$CD000145 F041 AF 4A STX 10,U0146 F043 1F 34 TFR U,S0147 F045 3B RTI0148 *0149 * recieve char from remote drive.0150 * timeout if no response for approx 1s.0151 * Entry: no parameters0152 * Exit: (A) = recieved char, (C)=1 if valid char, (C)=0 if timeout.0153 *0154 F046 34 30 RCHAR PSHS X,Y0155 *0156 F048 8E 03 E8 LDX #1000 1000x inner loop0157 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 char0159 F052 47 ASRA0160 F053 25 0A BCS RCHAR3 get character0161 F055 31 3F LEAY -1,Y else, continue to count delay0162 F057 26 F6 BNE RCHAR20163 F059 30 1F LEAX -1,X0164 F05B 26 EE BNE RCHAR10165 F05D 35 B0 PULS X,Y,PC return with error if timed out0166 *0167 F05F B6 E0 01 RCHAR3 LDA ACIAD1 return data (carry bit still set)0168 F062 35 B0 PULS X,Y,PC0169 *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 transmit0174 * Exit: (A) = recieved char, (C)=1 if valid char, (C)=0 if timeout.0175 *0176 F064 34 30 SCHAR PSHS X,Y0177 F066 34 02 PSHS A0178 *0179 F068 8E 03 E8 LDX #1000 1000x inner loop0180 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 FIFO0182 F072 47 ASRA0183 F073 47 ASRA0184 F074 25 0C BCS SCHAR3 send character0185 F076 31 3F LEAY -1,Y else, continue to count delay0186 F078 26 F5 BNE SCHAR20187 F07A 30 1F LEAX -1,X0188 F07C 26 ED BNE SCHAR10189 F07E 35 02 PULS A0190 F080 35 B0 PULS X,Y,PC return with error if timed out0191 *0192 F082 35 02 SCHAR3 PULS A0193 F084 B7 E0 01 STA ACIAD1 send data (carry bit still set)0194 F087 35 B0 PULS X,Y,PC0195 *0196 ** 'UF' Format IDE Drive to FLEX standard.0197 *0198 F089 0A 0D DISFOS FCB $0A,$0D0199 F08B 46 6F 72 6D 61 74 FCC 'Formating IDE disk... '69 6E 67 20 49 4445 20 64 69 73 6B2E 2E 2E 200200 F0A1 0A 0D FCB $0A,$0D0201 F0A3 44 72 69 76 65 20 FCC 'Drive Number ?'4E 75 6D 62 65 7220 3F0202 F0B1 04 FCB 40203 F0B2 0A 0D 04 MESS6 FCB $0A,$0D,40204 F0B5 49 44 45 20 64 72 FCC 'IDE drive not allocated! '69 76 65 20 6E 6F74 20 61 6C 6C 6F63 61 74 65 64 21200205 F0CE 04 FCB 40206 F0CF 0A 0D UFMSG1 FCB $0A,$0D0207 F0D1 46 6F 72 6D 61 74 FCC 'Format Complete'20 43 6F 6D 70 6C65 74 650208 F0E0 04 FCB 40209 F0E1 49 44 45 44 49 53 VOLMSG FCC 'IDEDISK '4B 200210 F0E9 04 FCB 40211 *0212 F0EA BD F4 BD UFSUB JSR INITDR0213 F0ED 8E F0 89 LDX #DISFOS0214 F0F0 BD F2 53 JSR PDATA10215 F0F3 17 FF 50 UFSUB1 LBSR RCHAR0216 F0F6 24 FB BCC UFSUB10217 F0F8 17 FF 69 LBSR SCHAR0218 F0FB 81 30 CMPA #'0'0219 F0FD 10 25 00 EF LBLO UFEXIT0220 F101 81 33 CMPA #'3'0221 F103 10 22 00 E9 LBHI UFEXIT0222 F107 80 30 SUBA #'0'0223 F109 1F 89 TFR A,B0224 F10B F7 01 00 STB DRVNUM0225 F10E 8E 00 FD LDX #DRVNUM-30226 F111 BD F5 3A JSR DRVSEL0227 *0228 * set up free chain0229 *0230 F114 8E 02 00 LDX #BUFFER clear out buffer0231 F117 4F CLRA0232 F118 5F CLRB0233 F119 A7 80 DFL1 STA 0,X+0234 F11B 5A DECB0235 F11C 26 FB BNE DFL10236 *0237 F11E 7F 01 01 CLR TRACK0238 F121 86 01 LDA #10239 F123 B7 01 02 STA SECTOR0240 F126 8E 02 00 DFL2 LDX #BUFFER0241 F129 B6 01 01 LDA TRACK0242 F12C A7 84 STA 0,X0243 F12E B6 01 02 LDA SECTOR0244 F131 4C INCA0245 F132 81 00 CMPA #RMAXSEC+1 last sector on track?0246 F134 26 04 BNE DFL30247 F136 6C 84 INC 0,X0248 F138 86 01 LDA #10249 F13A A7 01 DFL3 STA 1,X0250 F13C B6 01 01 LDA TRACK0251 F13F F6 01 02 LDB SECTOR0252 F142 BD F5 15 JSR WRITSC0253 F145 7C 01 02 INC SECTOR0254 F148 B6 01 02 LDA SECTOR0255 F14B 81 00 CMPA #RMAXSEC+10256 F14D 26 D7 BNE DFL20257 F14F 86 01 LDA #10258 F151 B7 01 02 STA SECTOR0259 F154 7C 01 01 INC TRACK0260 F157 B6 01 01 LDA TRACK0261 F15A 81 00 CMPA #RMAXTRK0262 F15C 26 C8 BNE DFL20263 * break free chain at last track/sector0264 F15E 8E 02 00 LDX #BUFFER0265 F161 86 FF LDA #RMAXTRK-10266 F163 C6 FF LDB #RMAXSEC0267 F165 BD F4 F1 JSR READSC0268 F168 8E 02 00 LDX #BUFFER0269 F16B 6F 84 CLR 0,X0270 F16D 6F 01 CLR 1,X0271 F16F 86 FF LDA #RMAXTRK-10272 F171 C6 FF LDB #RMAXSEC0273 F173 BD F5 15 JSR WRITSC0274 * set up sector structure, SIR, directory etc0275 F176 8E 02 00 LDX #BUFFER0276 F179 4F CLRA0277 F17A C6 FF LDB #RMAXSEC0278 F17C BD F4 F1 JSR READSC0279 F17F 8E 02 00 LDX #BUFFER0280 F182 6F 84 CLR 0,X break end of directory chain0281 F184 6F 01 CLR 1,X0282 F186 4F CLRA0283 F187 C6 FF LDB #RMAXSEC0284 F189 BD F5 15 JSR WRITSC0285 *0286 F18C 8E 02 00 LDX #BUFFER0287 F18F 4F CLRA0288 F190 C6 03 LDB #3 set up SIR0289 F192 BD F4 F1 JSR READSC0290 F195 8E 02 00 LDX #BUFFER0291 F198 6F 84 CLR 0,X break forward link0292 F19A 6F 01 CLR 1,X0293 *0294 F19C 34 20 PSHS Y0295 F19E 10 8E F0 E1 LDY #VOLMSG0296 F1A2 C6 10 LDB #160297 F1A4 A6 A0 DFL4 LDA ,Y+0298 F1A6 A7 85 STA B,X0299 F1A8 5C INCB0300 F1A9 C1 18 CMPB #240301 F1AB 26 F7 BNE DFL40302 F1AD 35 20 PULS Y0303 *0304 F1AF 4F CLRA0305 F1B0 F6 01 00 LDB DRVNUM volume number0306 F1B3 ED 88 1B STD 27,X0307 *0308 F1B6 CC 01 01 LDD #$0101 first trk/sec 01-010309 F1B9 ED 88 1D STD 29,X0310 F1BC 86 FF LDA #RMAXTRK-10311 F1BE C6 FF LDB #RMAXSEC0312 F1C0 ED 88 1F STD 31,X0313 F1C3 ED 88 26 STD 38,X0314 F1C6 CC FE 01 LDD #RTOTSEC total DATA sectors (2912-14)0315 F1C9 ED 88 21 STD 33,X0316 *0317 F1CC 86 01 LDA #01 month set default creation date (SYS09's birthday!)0318 F1CE A7 88 23 STA 35,X0319 F1D1 86 07 LDA #07 day0320 F1D3 A7 88 24 STA 36,X0321 F1D6 86 07 LDA #07 year0322 F1D8 A7 88 25 STA 37,X0323 *0324 F1DB 4F RF3 CLRA0325 F1DC C6 03 LDB #30326 F1DE BD F5 15 JSR WRITSC0327 *0328 * Not sure what this is about0329 * put bootstrap on track 0 sector 10330 *0331 * LDX #BUFFER0332 * CLRA0333 * LDB #10334 * JSR READSC0335 * LDX #BUFFER0336 * LDA #$AA set the init flag0337 * STA 0,X0338 * LDA #$550339 * STA 1,X0340 * CLRA0341 * LDB #10342 * JSR WRITSC0343 *0344 * Write Boot sector0345 *0346 F1E1 8E F7 00 LDX #BOOT0347 F1E4 4F CLRA TRACK 00348 F1E5 C6 01 LDB #$01 SECTOR 10349 F1E7 B7 01 01 STA TRACK0350 F1EA F7 01 02 STB SECTOR0351 F1ED 17 03 25 LBSR WRITSC0352 *0353 F1F0 8E F0 CF UFEXIT LDX #UFMSG10354 F1F3 7E F2 53 JMP PDATA10355 *0356 * ACIA INPUT TEST0357 *0358 F1F6 B6 E0 00 INTEST LDA ACIAC10359 F1F9 85 01 BITA #$010360 F1FB 39 RTS0361 *0362 * RESET ACIA0363 *0364 F1FC 86 03 ACIRST LDA #$03 master reset0365 F1FE B7 E0 00 STA ACIAC10366 F201 86 11 LDA #$110367 F203 B7 E0 00 STA ACIAC10368 F206 39 RTS0369 *0370 * ACIA INPUT0371 *0372 F207 86 10 INTER LDA #160373 F209 B7 01 08 STA DELCNT+00374 F20C 7F 01 09 CLR DELCNT+10375 F20F 7F 01 0A CLR DELCNT+20376 F212 B6 E0 00 INTER0 LDA ACIAC10377 F215 85 01 BITA #$010378 F217 26 08 BNE INTER10379 F219 85 78 BITA #$780380 F21B 27 0A BEQ INTER20381 F21D 8D DD BSR ACIRST0382 F21F 20 E6 BRA INTER0383 *0384 F221 B6 E0 01 INTER1 LDA ACIAD10385 F224 1C FD ANDCC #$FF-VFLAG0386 F226 39 RTS0387 *0388 F227 7A 01 0A INTER2 DEC DELCNT+20389 F22A 26 E6 BNE INTER00390 F22C 7A 01 09 DEC DELCNT+10391 F22F 26 E1 BNE INTER00392 F231 7A 01 08 DEC DELCNT+00393 F234 26 DC BNE INTER00394 F236 4F CLRA0395 F237 1A 02 ORCC #VFLAG0396 F239 39 RTS0397 *0398 * ACIA OUTPUT0399 *0400 F23A 34 02 OUTTER PSHS A0401 *0402 F23C B6 E0 00 OUTTE1 LDA ACIAC10403 F23F 85 02 BITA #$020404 F241 26 08 BNE OUTTE20405 F243 85 78 BITA #$780406 F245 27 F5 BEQ OUTTE10407 F247 8D B3 BSR ACIRST0408 F249 20 F1 BRA OUTTE10409 *0410 F24B 35 02 OUTTE2 PULS A0411 F24D B7 E0 01 STA ACIAD10412 F250 39 RTS0413 *0414 * Print Data0415 *0416 F251 8D E7 PDATA0 BSR OUTTER0417 F253 A6 80 PDATA1 LDA ,X+0418 F255 81 04 CMPA #$040419 F257 26 F8 BNE PDATA00420 F259 39 RTS0421 *0422 *0423 ** 'UX' Xmodem IDE Disk upload0424 *0425 F25A 0D 0A UXMES0 FCB $0D,$0A0426 F25C 58 6D 6F 64 65 6D FCC 'Xmodem IDE Disk Upload'20 49 44 45 20 4469 73 6B 20 55 706C 6F 61 640427 F272 04 FCB 40428 F273 0D 0A UXMES1 FCB $0D,$0A0429 F275 55 70 6C 6F 61 64 FCC 'Upload Complete'20 43 6F 6D 70 6C65 74 650430 F284 04 FCB 40431 F285 0D 0A UXMES2 FCB $0D,$0A0432 F287 55 70 6C 6F 61 64 FCC 'Upload Error'20 45 72 72 6F 720433 F293 04 FCB 40434 F294 0D 0A UXMSG3 FCB $0D,$0A0435 F296 44 72 69 76 65 20 FCC 'Drive Number :'4E 75 6D 62 65 7220 3A0436 F2A4 04 FCB 40437 F2A5 0D 0A UXMSG4 FCB $0D,$0A0438 F2A7 41 72 65 20 59 6F FCC 'Are You Sure ? (Y/N)'75 20 53 75 72 6520 3F 20 28 59 2F4E 290439 F2BB 04 FCB 40440 *0441 * Print Banner0442 *0443 F2BC 8E F2 5A UXSUB LDX #UXMES00444 F2BF 17 FF 91 LBSR PDATA10445 *0446 * Prompt for Disk drive number (0 to 3)0447 *0448 F2C2 8E F2 94 LDX #UXMSG30449 F2C5 17 FF 8B LBSR PDATA10450 F2C8 17 FF 3C UXSUB1 LBSR INTER0451 F2CB 29 FB BVS UXSUB10452 F2CD 17 FF 6A LBSR OUTTER0453 F2D0 81 30 CMPA #'00454 F2D2 10 25 01 2E LBLO UXEXIT0455 F2D6 81 33 CMPA #'30456 F2D8 10 22 01 28 LBHI UXEXIT0457 F2DC 80 30 SUBA #'00458 F2DE B7 01 00 STA DRVNUM0459 *0460 * Report selected drive0461 *0462 F2E1 8E F2 94 LDX #UXMSG30463 F2E4 17 FF 6C LBSR PDATA10464 F2E7 B6 01 00 LDA DRVNUM0465 F2EA 8B 30 ADDA #'00466 F2EC 17 FF 4B LBSR OUTTER0467 *0468 * Ask for confirmation (Y/N)0469 *0470 F2EF 8E F2 A5 LDX #UXMSG40471 F2F2 17 FF 5E LBSR PDATA10472 F2F5 17 FF 0F UXSUB2 LBSR INTER0473 F2F8 29 FB BVS UXSUB20474 F2FA 17 FF 3D LBSR OUTTER0475 F2FD 84 5F ANDA #$5F0476 F2FF 81 4E CMPA #'N0477 F301 10 27 00 FF LBEQ UXEXIT0478 F305 81 59 CMPA #'Y0479 F307 26 B3 BNE UXSUB0480 *0481 * We have confirmation ... now load the disk image0482 *0483 F309 17 01 B1 LBSR INITDR0484 F30C CE F4 2D LDU #XSTST0485 F30F FF 01 06 STU XSTATE0486 F312 86 01 LDA #10487 F314 B7 01 04 STA BLKNUM0488 *0489 * Sector10490 *0491 F317 8E 02 00 LDX #BUFFER0492 *0493 F31A 4F CLRA TRACK 00494 F31B C6 01 LDB #$01 SECTOR 10495 F31D B7 01 01 STA TRACK0496 F320 F7 01 02 STB SECTOR0497 *0498 F323 17 00 EA LBSR XREAD0499 F326 10 25 00 E0 LBCS UXERR0500 F32A 17 01 87 LBSR XACK0501 F32D 17 00 E0 LBSR XREAD0502 F330 10 25 00 D6 LBCS UXERR0503 *0504 F334 8E 02 00 LDX #BUFFER0505 F337 B6 01 01 LDA TRACK0506 F33A F6 01 02 LDB SECTOR0507 F33D 17 01 D5 LBSR WRITSC0508 F340 17 01 71 LBSR XACK0509 *0510 * Sector 20511 *0512 F343 8E 02 00 LDX #BUFFER0513 *0514 F346 B6 01 01 LDA TRACK0515 F349 F6 01 02 LDB SECTOR0516 F34C 5C INCB0517 F34D B7 01 01 STA TRACK0518 F350 F7 01 02 STB SECTOR0519 *0520 F353 17 00 BA LBSR XREAD0521 F356 10 25 00 B0 LBCS UXERR0522 F35A 17 01 57 LBSR XACK0523 F35D 17 00 B0 LBSR XREAD0524 F360 10 25 00 A6 LBCS UXERR0525 *0526 F364 8E 02 00 LDX #BUFFER0527 F367 B6 01 01 LDA TRACK0528 F36A F6 01 02 LDB SECTOR0529 F36D 17 01 A5 LBSR WRITSC0530 *0531 F370 17 01 41 LBSR XACK0532 *0533 * Sector 3 - SIR0534 *0535 F373 8E 02 00 LDX #BUFFER0536 *0537 F376 B6 01 01 LDA TRACK0538 F379 F6 01 02 LDB SECTOR0539 F37C 5C INCB0540 F37D B7 01 01 STA TRACK0541 F380 F7 01 02 STB SECTOR0542 *0543 F383 17 00 8A LBSR XREAD0544 F386 10 25 00 80 LBCS UXERR0545 F38A 17 01 27 LBSR XACK0546 F38D 17 00 80 LBSR XREAD0547 F390 10 25 00 76 LBCS UXERR0548 *0549 F394 8E 02 00 LDX #BUFFER0550 F397 A6 88 26 LDA 38,X0551 F39A 4C INCA0552 F39B B7 01 0B STA MAXTRK0553 F39E E6 88 27 LDB 39,X0554 F3A1 5C INCB0555 F3A2 F7 01 0C STB MAXSEC0556 F3A5 B6 01 01 LDA TRACK0557 F3A8 F6 01 02 LDB SECTOR0558 F3AB 17 01 67 LBSR WRITSC0559 *0560 F3AE 17 01 03 LBSR XACK0561 *0562 * Sector 4 to Last Track & Sector0563 *0564 *0565 F3B1 B6 01 01 LDA TRACK0566 F3B4 F6 01 02 LDB SECTOR0567 F3B7 5C INCB0568 *0569 F3B8 8E 02 00 UXLOOP LDX #BUFFER0570 F3BB B7 01 01 STA TRACK0571 F3BE F7 01 02 STB SECTOR0572 *0573 F3C1 17 00 4C LBSR XREAD0574 F3C4 10 25 00 42 LBCS UXERR0575 F3C8 17 00 E9 LBSR XACK0576 F3CB 17 00 42 LBSR XREAD0577 F3CE 10 25 00 38 LBCS UXERR0578 *0579 F3D2 8E 02 00 LDX #BUFFER0580 F3D5 B6 01 01 LDA TRACK0581 F3D8 F6 01 02 LDB SECTOR0582 F3DB 17 01 37 LBSR WRITSC0583 F3DE 17 00 D3 LBSR XACK0584 *0585 F3E1 B6 01 01 LDA TRACK0586 F3E4 F6 01 02 LDB SECTOR0587 F3E7 5C INCB0588 F3E8 F1 01 0C CMPB MAXSEC0589 F3EB 26 CB BNE UXLOOP0590 F3ED C6 01 LDB #10591 F3EF 4C INCA0592 F3F0 B1 01 0B CMPA MAXTRK0593 F3F3 26 C3 BNE UXLOOP0594 *0595 *0596 * Write Boot sector0597 *0598 F3F5 8E F7 00 LDX #BOOT0599 F3F8 4F CLRA TRACK 00600 F3F9 C6 01 LDB #$01 SECTOR 10601 F3FB B7 01 01 STA TRACK0602 F3FE F7 01 02 STB SECTOR0603 F401 17 01 11 LBSR WRITSC0604 *0605 F404 8E F2 73 UXEXIT LDX #UXMES10606 F407 7E F2 53 JMP PDATA10607 *0608 F40A 8E F2 85 UXERR LDX #UXMES20609 F40D 16 FE 43 LBRA PDATA10610 *0611 * Get a Byte using XModem protocol0612 * Carry clear => no errors0613 * Carry set => errors0614 *0615 F410 34 40 XREAD PSHS U0616 F412 FE 01 06 LDU XSTATE0617 *0618 F415 17 FD EF XBYTE0 LBSR INTER0619 F418 28 0A BVC XBYTE10620 F41A 86 15 LDA #NAK0621 F41C 17 FE 1B LBSR OUTTER0622 F41F CE F4 2D LDU #XSTST0623 F422 20 F1 BRA XBYTE00624 *0625 F424 AD C4 XBYTE1 JSR ,U0626 F426 26 ED BNE XBYTE00627 F428 FF 01 06 STU XSTATE0628 F42B 35 C0 PULS U,PC0629 *0630 * START - LOOK FOR SOH (START OF HEADER) = $010631 *0632 F42D 81 01 XSTST CMPA #SOH0633 F42F 26 06 BNE XSTST10634 F431 CE F4 4D LDU #XSTBL0635 F434 1C FA ANDCC #$FF-CFLAG-ZFLAG No abort, no valid data (no exit)0636 F436 39 RTS0637 *0638 F437 81 04 XSTST1 CMPA #EOT0639 F439 26 08 BNE XSTST20640 F43B 86 06 LDA #ACK0641 F43D 17 FD FA LBSR OUTTER0642 F440 1A 05 ORCC #CFLAG+ZFLAG Set (c)=1 abort & exit0643 F442 39 RTS0644 *0645 F443 81 18 XSTST2 CMPA #CAN0646 F445 26 03 BNE XSTST30647 F447 1A 05 ORCC #CFLAG+ZFLAG Set (c)=1 abort & exit0648 F449 39 RTS0649 *0650 F44A 1C FA XSTST3 ANDCC #$FF-CFLAG-ZFLAG0651 F44C 39 RTS0652 *0653 * Got SOH0654 * Now get block number0655 *0656 F44D B1 01 04 XSTBL CMPA BLKNUM0657 F450 26 06 BNE XSTBLE0658 F452 CE F4 63 LDU #XSTCOM0659 F455 1C FA ANDCC #$FF-CFLAG-ZFLAG No abort, No valid data (no exit)0660 F457 39 RTS0661 *0662 * Error in block number0663 *0664 F458 86 15 XSTBLE LDA #NAK0665 F45A 17 FD DD LBSR OUTTER0666 F45D CE F4 2D LDU #XSTST0667 F460 1C FA ANDCC #$FF-CFLAG-ZFLAG No abort, No valid data (no exit)0668 F462 39 RTS0669 *0670 * Get complement of block number0671 *0672 F463 43 XSTCOM COMA0673 F464 B1 01 04 CMPA BLKNUM0674 F467 26 EF BNE XSTBLE0675 F469 7F 01 03 CLR CHKSUM0676 F46C 86 80 LDA #1280677 F46E B7 01 05 STA BYTCNT0678 F471 CE F4 77 LDU #XSTDA0679 F474 1C FA ANDCC #$FF-CFLAG-ZFLAG No abort, No valid data (no exit)0680 F476 39 RTS0681 *0682 * Get data bytes0683 *0684 F477 34 02 XSTDA PSHS A0685 F479 BB 01 03 ADDA CHKSUM0686 F47C B7 01 03 STA CHKSUM0687 F47F 35 02 PULS A0688 F481 7A 01 05 DEC BYTCNT0689 F484 26 03 BNE XSTDA10690 F486 CE F4 8E LDU #XSTCK0691 F489 A7 80 XSTDA1 STA ,X+0692 F48B 1C FA ANDCC #$FF-CFLAG-ZFLAG No abort, no valid data (no exit)0693 F48D 39 RTS0694 *0695 * Byte count reached zero0696 * Check checksum byte0697 *0698 F48E B1 01 03 XSTCK CMPA CHKSUM0699 F491 26 0B BNE XSTCK1 retry if wrong checksum0700 *0701 * Checksum OK ...0702 * increment block number0703 * Don't send ACK until data written to CF0704 *0705 F493 7C 01 04 INC BLKNUM0706 F496 CE F4 2D LDU #XSTST0707 F499 1C FE ANDCC #$FF-CFLAG No abort0708 F49B 1A 04 ORCC #ZFLAG Valid data (exit)0709 F49D 39 RTS0710 *0711 * Checksum Error detected ...0712 * Reset Sector counter in ACCB to last 128 byte boundary0713 * and send NAK0714 *0715 F49E 34 04 XSTCK1 PSHS B0716 F4A0 1F 10 TFR X,D0717 F4A2 5A DECB0718 F4A3 C4 80 ANDB #1280719 F4A5 1F 01 TFR D,X0720 F4A7 35 04 PULS B0721 F4A9 86 15 LDA #NAK0722 F4AB 17 FD 8C XSTCK2 LBSR OUTTER0723 F4AE CE F4 2D LDU #XSTST0724 F4B1 1C FA ANDCC #$FF-CFLAG-ZFLAG No abort, no valid data (no exit)0725 F4B3 39 RTS0726 *0727 * Acknowledge Data Received0728 *0729 F4B4 34 02 XACK PSHS A0730 F4B6 86 06 LDA #ACK0731 F4B8 17 FD 7F LBSR OUTTER0732 F4BB 35 82 PULS A,PC0733 *0734 *0735 ** FLEX 9 IDE DISK DRIVERS0736 *0737 * FOR SYS09BUG 1.2 ON THE XSA-3S10000738 * WITH I/O MAPPED AT $XE0000739 * AND ROM MAPPED AT $XF0000740 *0741 *0742 * INITIALIZE CF CARD FOR 8 BIT LBA MODE0743 *0744 F4BD CC 00 06 INITDR LDD #AUXRESET0745 F4C0 FD E1 1E STD CF_AUX0746 F4C3 CC 00 02 LDD #AUXRSTREL0747 F4C6 FD E1 1E STD CF_AUX0748 F4C9 CC 00 E0 LDD #HEADLBA0749 F4CC FD E1 0C STD CF_HEAD0750 F4CF 16 02 D6 LBRA WTRDY0751 *0752 * RESTORE DISK DRIVER (SEEK TRACK 00)0753 *0754 F4D2 8D 66 RESTR1 BSR DRVSEL0755 F4D4 4F CLRA ; Track 00756 F4D5 C6 01 LDB #$01 ; Sector 10757 *0758 * Seek track and sector0759 * A holds track number (0 - ??)0760 * B holds sector number (1 - ??)0761 * Sector numbers starts from 10762 * subtract 1 to start from sector 0 on CF0763 *0764 F4D7 34 02 SEEKTS PSHS A0765 F4D9 4F CLRA0766 F4DA 5A DECB0767 F4DB FD E1 06 STD CF_SECNUM0768 F4DE E6 E4 LDB ,S0769 F4E0 FD E1 08 STD CF_CYLLO0770 F4E3 F6 01 00 LDB DRVNUM0771 F4E6 FD E1 0A STD CF_CYLHI0772 F4E9 C6 01 LDB #$010773 F4EB FD E1 04 STD CF_SECCNT0774 F4EE 5F CLRB0775 F4EF 35 82 PULS A,PC0776 *0777 * READ SECTORS FROM CF0778 *0779 *0780 F4F1 8D E4 READSC BSR SEEKTS0781 F4F3 CC 00 20 LDD #CMDREAD ; IDE READ MULTIPLE0782 F4F6 FD E1 0E STD CF_COMAND0783 F4F9 17 02 AC LBSR WTRDY0784 *0785 * READ LOOP0786 *0787 F4FC 34 20 PSHS Y0788 F4FE 10 8E 01 00 LDY #2560789 F502 17 02 B2 RDLP1 LBSR WTDRQ0790 F505 FC E1 00 LDD CF_DATA0791 F508 E7 80 STB ,X+0792 F50A 31 3F LEAY -1,Y0793 F50C 26 F4 BNE RDLP10794 F50E 35 20 PULS Y0795 *0796 F510 17 02 95 LBSR WTRDY0797 F513 5F CLRB0798 F514 39 RTS0799 *0800 * WRITE SECTOR TO CF0801 *0802 F515 8D C0 WRITSC BSR SEEKTS ; SEEK TRACK & SECTOR0803 F517 CC 00 30 LDD #CMDWRITE ; IDE WRITE MULTIPLE0804 F51A FD E1 0E STD CF_COMAND0805 F51D 17 02 88 LBSR WTRDY0806 *0807 * WRITE LOOP0808 *0809 F520 34 20 PSHS Y0810 F522 10 8E 01 00 LDY #2560811 F526 4F CLRA0812 F527 17 02 8D WRTLP1 LBSR WTDRQ0813 F52A E6 80 LDB ,X+0814 F52C FD E1 00 STD CF_DATA0815 F52F 31 3F LEAY -1,Y0816 F531 26 F4 BNE WRTLP10817 F533 35 20 PULS Y0818 *0819 F535 17 02 70 LBSR WTRDY0820 F538 5F CLRB0821 F539 39 RTS0822 *0823 * DRIVE SELECT DISK DRIVER0824 *0825 F53A A6 03 DRVSEL LDA 3,X GET DRIVE # FROM FCB0826 F53C 81 03 CMPA #30827 F53E 23 01 BLS DRVS2 IF > 3, SET IT TO 00828 F540 4F CLRA0829 F541 B7 01 00 DRVS2 STA DRVNUM0830 F544 5F CLRB ; SET Z, CLEAR C0831 F545 39 RTS0832 *0833 * CHECK DRIVE READY DISK DRIVER0834 *0835 F546 A6 03 CHKDRV LDA 3,X0836 F548 5F CLRB ; CLEAR C, SET Z0837 F549 39 RTS0838 *******************************************************0839 *0840 * Bootstrap FLEX Loader0841 *0842 * SBUG1.8 loads the bootstap loader at $C0000843 * however the Flex adaption manual has the0844 * bootstrap loader residing at $C1000845 * Bootstrap Loader is position independent code0846 *0847 ******************************************************0848 *0849 * Equates0850 *0851 C0FF BSSTACK EQU $C0FF0852 C300 SCTBUF EQU $C3000853 *0854 * Start of Utility0855 *0856 F700 ORG MONEXT+$07000857 F700 20 0B BOOT BRA BLOAD00858 F702 00 00 00 FCB 0,0,00859 F705 00 TRK FCB 0 File start track0860 F706 00 SCT FCB 0 File start sector0861 F707 00 DNS FCB 0 Density Flag (not used)0862 F708 C0 00 TADR FDB $C000 Transfer address0863 F70A 00 00 LADR FDB 0 Load Address0864 F70C 00 DRNUM FCB 0 Drive number 00865 *0866 F70D 10 CE C0 FF BLOAD0 LDS #BSSTACK Set up Bootstrap stack0867 F711 EC 8C F1 LDD TRK,PCR Set up start track and sector0868 F714 FD C3 00 STD SCTBUF0869 F717 10 8E C4 00 LDY #SCTBUF+2560870 *0871 * Perform actual file load0872 *0873 F71B 8D 35 BLOAD1 BSR GETCH Get acharcater0874 F71D 81 02 CMPA #$02 Data record hearder ?0875 F71F 27 10 BEQ BLOAD2 Skip, is so0876 F721 81 16 CMPA #$16 Xfr address hearder ?0877 F723 26 F6 BNE BLOAD1 Loop if neither0878 *0879 * Get transfer address0880 *0881 F725 8D 2B BSR GETCH0882 F727 A7 8C DE STA TADR,PCR0883 F72A 8D 26 BSR GETCH0884 F72C A7 8C DA STA TADR+1,PCR0885 F72F 20 EA BRA BLOAD10886 *0887 * Load data record0888 *0889 F731 8D 1F BLOAD2 BSR GETCH Get load address0890 F733 A7 8C D4 STA LADR,PCR0891 F736 8D 1A BSR GETCH0892 F738 A7 8C D0 STA LADR+1,PCR0893 F73B 8D 15 BSR GETCH Get Bytes count0894 F73D 1F 89 TFR A,B0895 F73F 5D TSTB0896 F740 27 D9 BEQ BLOAD1 Loop if count = 00897 F742 AE 8C C5 LDX LADR,PCR Get load address0898 F745 34 14 BLOAD3 PSHS B,X0899 F747 8D 09 BSR GETCH Get data character0900 F749 35 14 PULS B,X0901 F74B A7 80 STA ,X+ Store at load address0902 F74D 5A DECB0903 F74E 26 F5 BNE BLOAD3 Loop until count = 00904 F750 20 C9 BRA BLOAD10905 *0906 * Get Character routine0907 * Reads a sector if needed0908 *0909 F752 10 8C C4 00 GETCH CMPY #SCTBUF+256 out of data ?0910 F756 26 0F BNE GETCH4 Go read Character if not0911 F758 8E C3 00 GETCH2 LDX #SCTBUF Point to buffer0912 F75B EC 84 LDD 0,X Get forward Link0913 F75D 27 0B BEQ GOFLEX if zero, file is loaded0914 F75F 8D 26 BSR READ Read next sector0915 F761 26 9D BNE BOOT start over if error0916 F763 10 8E C3 04 LDY #SCTBUF+4 Point past link0917 F767 A6 A0 GETCH4 LDA ,Y+ Else, get a character0918 F769 39 RTS0919 *0920 * File is loaded, Jump to it0921 *0922 F76A 6E 9C 9B GOFLEX JMP [TADR,PCR] Jump to transfer address09230924 *0925 ** FLEX 9 IDE DISK DRIVERS0926 *0927 * Seek track and sector0928 * A holds track number (0 - ??)0929 * B holds sector number (1 - ??)0930 * Sector numbers starts from 10931 * subtract 1 to start from sector 0 on CF0932 *0933 F76D 34 02 SEEK PSHS A0934 F76F 4F CLRA0935 F770 5A DECB0936 F771 FD E1 06 STD CF_SECNUM0937 F774 E6 E4 LDB ,S0938 F776 FD E1 08 STD CF_CYLLO0939 F779 E6 8C 90 LDB DRNUM,PCR0940 F77C FD E1 0A STD CF_CYLHI0941 F77F C6 01 LDB #$010942 F781 FD E1 04 STD CF_SECCNT0943 F784 5F CLRB0944 F785 35 82 PULS A,PC0945 *0946 * READ SECTORS FROM CF0947 *0948 *0949 F787 8D E4 READ BSR SEEK0950 F789 CC 00 20 LDD #CMDREAD ; IDE READ MULTIPLE0951 F78C FD E1 0E STD CF_COMAND0952 F78F 8D 17 BSR WTRDY0953 *0954 * READ LOOP0955 *0956 F791 34 20 PSHS Y0957 F793 10 8E 01 00 LDY #2560958 F797 8D 1E READ1 BSR WTDRQ0959 F799 FC E1 00 LDD CF_DATA0960 F79C E7 80 STB ,X+0961 F79E 31 3F LEAY -1,Y0962 F7A0 26 F5 BNE READ10963 F7A2 35 20 PULS Y0964 *0965 F7A4 8D 02 BSR WTRDY0966 F7A6 5F CLRB0967 F7A7 39 RTS0968 *0969 * WAIT UNTIL READY0970 *0971 F7A8 FC E1 0E WTRDY LDD CF_STATUS0972 F7AB C5 80 BITB #BUSY0973 F7AD 26 F9 BNE WTRDY0974 F7AF FC E1 0E LDD CF_STATUS0975 F7B2 C5 40 BITB #DRDY0976 F7B4 27 F2 BEQ WTRDY0977 F7B6 39 RTS0978 *0979 * WAIT FOR DATA REQUEST0980 *0981 F7B7 FC E1 0E WTDRQ LDD CF_STATUS0982 F7BA C5 08 BITB #DRQ0983 F7BC 27 F9 BEQ WTDRQ0984 F7BE 39 RTS0985 *0004 END0000 INCLUDE "sys09bug.txt"0001 * NAM SYS09BUG12 SYSTEM09 MONITOR0002 OPT lsys09bug.txt page 30004 *0005 * MONITOR PROGRAM FOR THE SOUTHWEST TECHNICAL0006 * PRODUCTS MP-09 CPU BOARD AS COMMENTED BY....0007 *0008 * ALLEN CLARK WALLACE WATSON0009 * 2502 REGAL OAKS LANE 4815 EAST 97th AVE.0010 * LUTZ, FLA. 33549 TEMPLE TERRACE, FLA. 336170011 * PH. 813-977-0347 PH. 813-985-13590012 *0013 * MODIFIED TO SBUG09 VER 1.8 BY: RANDY JARRETT0014 * 2561 NANTUCKET DR APT. E0015 * ATLANTA, GA 303450016 * PH. 404-320-10430017 *0018 * MODIFIED TO SYS09BUG VER 1.00019 * FOR: SYSTEM09 FPGA SYSTEM0020 * BY: JOHN KENT0021 * DATE: 21ST NOVEMBER 20060022 * REMOVED: DISK BOOTS0023 * MEMORY TEST0024 * ADDED: ADM3A VDU DRIVER0025 *0026 * MODIFIED TO SYS09BUG VER 1.10027 * FOR: SYSTEM09 FPGA SYSTEM0028 * BY: JOHN KENT0029 * DATE: 7TH JANUARY 20070030 * ADDED: 'U' USER EXTENTION COMMANDS AT $F0000031 * CONDITIONAL ASSEMBLY OF FLOPPY BOOTS0032 * AND REALTIME CLOCK0033 *0034 * MODIFIED TO SYS09BUG VER 1.20035 * FOR: SYSTEM09 FPGA SYSTEM0036 * BY: JOHN KENT0037 * DATE: 21ST MAY 20070038 * ADDED: COMPACT FLASH BOOT TO FPGA VERSION0039 * REMOVED PORT REDIRECTION ON PUNCH & LOAD0040 *0041 * Modified to SYS09BUG VER 1.30042 * FOR: SYSTEM09 FPGA SYSTEM0043 * BY: JOHN KENT0044 * DATE: 8TH JAN 20080045 * ADDED: CONDITIONALS FOR SPARTAN3E STARTER BOARD0046 * WITH ONLY 32K OF RAM0047 *0048 * Modified to SYS09BUG VER 1.40049 * FOR: SYSTEM09 FPGA SYSTEM0050 * BY: JOHN KENT0051 * DATE: 3RD FEB 20080052 * ADDED: CONDITIONALS FOR XESS BOARD WITH IDE0053 * SEPERATE CONDITIONAL FOR S3 STARTER AND B5-X3000054 * 16 BIT IDE DISK BOOT STRAP ROUTINE0055 * CHANGED: SEPARARTED OPTIONS EQUATES AND BODY INTO SEPARATE FILES0056 *0057 * *** COMMANDS ***0058 *0059 * CONTROL A = ALTER THE "A" ACCUMULATOR0060 * CONTROL B = ALTER THE "B" ACCUMULATOR0061 * CONTROL C = ALTER THE CONDITION CODE REGISTER0062 * CONTROL D = ALTER THE DIRECT PAGE REGISTER0063 * CONTROL P = ALTER THE PROGRAM COUNTER0064 * CONTROL U = ALTER USER STACK POINTER0065 * CONTROL X = ALTER "X" INDEX REGISTER0066 * CONTROL Y = ALTER "Y" INDEX REGISTER0067 * B hhhh = SET BREAKPOINT AT LOCATION $hhhh0068 * D = 5.25" MINIFLOPPY BOOT0069 * E ssss-eeee = EXAMINE MEMORY0070 * FROM STARTING ADDRESS ssss0071 * TO ENDING ADDRESS eeee.0072 * G = CONTINUE EXECUTION FROM BREAKPOINT OR SWI0073 * L = LOAD TAPE0074 * M hhhh = EXAMINE AND CHANGE MEMORY LOCATION hhhh0075 * P ssss-eeee = PUNCH TAPE, START ssss TO END eeee ADDR.0076 * R = DISPLAY REGISTER CONTENTS0077 * S = DISPLAY STACK FROM ssss TO $DFC00078 * U = 8" DMAF2 FLOPPY BOOT0079 * U = USER EXTENSION COMMANDS AT $F0000080 * X = REMOVE ALL BREAKPOINTS0081 *0082 *0083 ***************************************************0084 * SYS09BUG VARIABLE SPACE0085 ***************************************************0086 *0087 DFC0 ORG MONRAM0088 DFC0 STACK EQU * TOP OF INTERNAL STACK0089 DFC0 NMI RMB 2 USER NMI VECTOR0090 DFC2 SWI3 RMB 2 SOFTWARE INTERRUPT VECTOR #30091 DFC4 SWI2 RMB 2 SOFTWARE INTERRUPT VECTOR #20092 DFC6 FIRQ RMB 2 FAST INTERRUPT VECTOR0093 DFC8 IRQ RMB 2 INTERRUPT VECTOR0094 DFCA SWI RMB 2 SOFTWARE INTERRUPT VECTOR0095 DFCC SVCVO RMB 2 SUPERVISOR CALL VECTOR ORGIN0096 DFCE SVCVL RMB 2 SUPERVISOR CALL VECTOR LIMIT0097 IFD DATOPT0098 DFD0 LRARAM RMB 16 LRA ADDRESSES0099 ENDIF DATOPT0100 DFE0 CPORT RMB 2 RE-VECTORABLE CONTROL PORT0101 DFE2 ECHO RMB 1 ECHO FLAG0102 DFE3 BPTBL RMB 24 BREAKPOINT TABLE BASE ADDR0103 IFD TRAOPT0104 NMISAV RMB 2 NMI Jump Vector Backup0105 TRACNT RMB 2 Trace Count0106 ENDIF TRAOPT0106 ENDIF TRAOPT0107 IFD VDUOPT0108 *0109 **************************************************0110 * VDU8 DISPLAY DRIVER VARIABLES *0111 **************************************************0112 *0113 **** ALWAYS KEEP COLADX AND ROWADX TOGETHER ******0114 DFFB COLADX RMB 1 CURSOR COLUMN0115 DFFC ROWADX RMB 1 CURSOR ROW0116 **************************************************0117 *0118 DFFD NEWROW RMB 1 NEW ROW TEMP FOR ESCAPE0119 DFFE ESCFLG RMB 1 ESCAPE SEQUENCE ACTIVE0120 ENDIF VDUOPT0121 IFD DG640OPT0122 *0123 ***************************************************0124 * DG640 MEMORY MAPPED DISPLAY DRIVER VARIABLES *0125 ***************************************************0126 *0127 ***** ALWAYS KEEP THESE TWO BYTES TOGETHER *****0128 COLADX RMB 1 CURSOR COLUMN0129 ROWADX RMB 1 CURSOR ROW0130 *************************************************0131 CURSOR RMB 2 ABSOLUTE SCREEN ADDRESS0132 NEWROW RMB 1 NEW ROW TEMP FOR ESCAPE0133 ESCFLG RMB 1 ESCAPE SEQUENCE ACTIVE0134 ENDIF DG640OPT0134 ENDIF DG640OPT0135 *0136 *0137 ***************************************************0138 * START OF ROM *0139 ***************************************************0140 *0141 F800 ORG MONROM0142 F800 F8 14 FDB MONITOR0143 F802 F8 61 FDB NEXTCMD0144 F804 FC A1 FDB INCH0145 F806 FC 9B FDB INCHE0146 F808 FC B9 FDB INCHEK0147 F80A FC CE FDB OUTCH0148 F80C FB 8F FDB PDATA0149 F80E FB 1E FDB PCRLF0150 F810 FB 1A FDB PSTRNG0151 F812 FA 2E FDB LRA0152 *0153 IFD ADSOPT0154 FDB PCHK CHECK FOR PRINTER INPUT0155 FDB PINIZ INITIATE PRINTER0156 FDB POUTCH OUTPUT CH. TO PRINTER0157 FDB VINIZ0158 FDB VOUTCH0159 FDB ACINIZ0160 FDB AOUTCH0161 ENDIF ADSOPT0161 ENDIF ADSOPT0162 *0163 * MONITOR0164 *0165 * VECTOR ADDRESS STRING IS.....0166 * $F8A1-$F8A1-$F8A1-$F8A1-$F8A1-$FAB0-$FFFF-$FFFF0167 *0168 F814 8E FE 74 MONITOR LDX #RAMVEC POINT TO VECTOR ADDR. STRING0169 F817 10 8E DF C0 LDY #STACK POINT TO RAM VECTOR LOCATION0170 F81B C6 10 LDB #$10 BYTES TO MOVE = 160171 F81D A6 80 LOOPA LDA ,X+ GET VECTOR BYTE0172 F81F A7 A0 STA ,Y+ PUT VECTORS IN RAM / $DFC0-$DFCF0173 F821 5A DECB SUBTRACT 1 FROM NUMBER OF BYTES TO MOVE0174 F822 26 F9 BNE LOOPA CONTINUE UNTIL ALL VECTORS MOVED0175 *0176 * CONTENTS FROM TO FUNCTION0177 * $F8A1 $FE40 $DFC0 USER-V0178 * $F8A1 $FE42 $DFC2 SWI3-V0179 * $F8A1 $FE44 $DFC4 SWI2-V0180 * $F8A1 $FE46 $DFC6 FIRQ-V0181 * $F8A1 $FE48 $DFC8 IRQ-V0182 * $FAB0 $FE4A $DFCA SWI-V0183 * $FFFF $FE4C $DFCC SVC-VO0184 * $FFFF $FE4E $DFCE SVC-VL0185 *0186 F824 8E E0 00 LDX #ACIAS0187 F827 BF DF E0 STX CPORT STORE ADDR. IN RAM0188 F82A 17 01 5B LBSR XBKPNT CLEAR OUTSTANDING BREAKPOINTS0189 F82D C6 0C LDB #12 CLEAR 12 BYTES ON STACK0190 F82F 6F E2 CLRSTK CLR ,-S0191 F831 5A DECB0192 F832 26 FB BNE CLRSTK0193 F834 30 8C DD LEAX MONITOR,PCR SET PC TO SBUG-E ENTRY0194 F837 AF 6A STX 10,S ON STACK0195 F839 86 D0 LDA #$D0 PRESET CONDITION CODES ON STACK0196 F83B A7 E4 STA ,S0197 F83D 1F 43 TFR S,U0198 F83F 17 04 9F LBSR IOINIZ INITIALIZE CONTROL PORT0199 F842 8E FE 84 LDX #MSG1 POINT TO MONITOR MESSAGE0200 F845 17 03 47 LBSR PDATA PRINT MSG0201 *0202 IFD DATOPT0203 F848 8E DF D0 LDX #LRARAM POINT TO LRA RAM STORAGE AREA0204 F84B 4F CLRA START TOTAL AT ZERO0205 F84C C6 0D LDB #13 TOTAL UP ALL ACTIVE RAM MEMORY0206 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 TOTAL0209 F854 19 DAA ADJ. TOTAL FOR DECIMAL0210 F855 5A RELPAS DECB SUB. 1 FROM LOCS. TO TEST0211 F856 2A F6 BPL FNDREL PRINT TOTAL OF RAM0212 F858 17 04 0C LBSR OUT2H OUTPUT HEX BYTE AS ASCII0213 F85B 8E FE A3 LDX #MSG2 POINT TO MSG 'K' CR/LF + 3 NULS0214 F85E 17 03 2E LBSR PDATA PRINT MSG0215 ENDIF DATOPT0216 *0217 IFD TRAOPT0218 LBSR TRAINZ0219 ENDIF TRAOPT0219 ENDIF TRAOPT0220 *0221 ***** NEXTCMD *****0222 *0223 F861 8E FE AA NEXTCMD LDX #MSG3 POINT TO MSG ">"0224 F864 17 02 B3 LBSR PSTRNG PRINT MSG0225 F867 17 04 37 LBSR INCH GET ONE CHAR. FROM TERMINAL0226 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 IT0232 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 CHAR0235 F87D 8B 40 ADDA #$40 CONVERT IT TO ASCII LETTER0236 F87F 17 04 4C PRTCMD LBSR OUTCH PRNT CMD CHAR0237 F882 17 04 47 LBSR OUT1S PRNT SPACE0238 F885 C1 60 CMPB #$600239 F887 2F 02 BLE NXTCH00240 F889 C0 20 SUBB #$200241 *0242 ***** DO TABLE LOOKUP *****0243 * FOR COMMAND FUNCTIONS0244 *0245 F88B 8E FE 3B NXTCH0 LDX #JMPTAB POINT TO JUMP TABLE0246 F88E E1 80 NXTCHR CMPB ,X+ DOES COMMAND MATCH TABLE ENTRY ?0247 F890 27 0F BEQ JMPCMD BRANCH IF MATCH FOUND0248 F892 30 02 LEAX 2,X POINT TO NEXT ENTRY IN TABLE0249 F894 8C FE 74 CMPX #TABEND REACHED END OF TABLE YET ?0250 F897 26 F5 BNE NXTCHR IF NOT END, CHECK NEXT ENTRY0251 F899 8E FE AC LDX #MSG4 POINT TO MSG "WHAT?"0252 F89C 17 02 F0 LBSR PDATA PRINT MSG0253 F89F 20 C0 BRA NEXTCMD IF NO MATCH, PRMPT FOR NEW CMD0254 F8A1 AD 94 JMPCMD JSR [,X] JUMP TO COMMAND ROUTINE0255 F8A3 20 BC BRA NEXTCMD PROMPT FOR NEW COMMAND0256 *0257 * "G" GO OR CONTINUE0258 *0259 F8A5 1F 34 GO TFR U,S0260 F8A7 3B RTI RTI0261 *0262 ***** "M" MEMORY EXAMINE AND CHANGE *****0263 *0264 F8A8 17 03 6B MEMCHG LBSR IN1ADR INPUT ADDRESS0265 F8AB 29 2D BVS CHRTN IF NOT HEX, RETURN0266 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 MSG0269 F8B5 1F 21 TFR Y,X FETCH ADDRESS0270 F8B7 17 03 A5 LBSR OUT4H PRINT ADDR IN HEX0271 F8BA 17 04 0F LBSR OUT1S OUTPUT SPACE0272 F8BD A6 A4 LDA ,Y GET CONTENTS OF CURRENT ADDR.0273 F8BF 17 03 A5 LBSR OUT2H OUTPUT CONTENTS IN ASCII0274 F8C2 17 04 07 LBSR OUT1S OUTPUT SPACE0275 F8C5 17 03 5E LBSR BYTE LOOP WAITING FOR OPERATOR INPUT0276 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 AGAIN0279 F8CE 81 18 CMPA #$18 IS IT A CANCEL (CNTRL X)?0280 F8D0 27 DD BEQ MEMC2 PROMPT OPERATOR AGAIN0281 F8D2 81 5E CMPA #'^ IS IT AN UP ARROW?0282 F8D4 27 17 BEQ BACK DISPLAY PREVIOUS BYTE0283 F8D6 81 0D CMPA #$D IS IT A CR?0284 F8D8 26 0F BNE FORWRD DISPLAY NEXT BYTE0285 F8DA 39 CHRTN RTS EXIT ROUTINE0286 *0287 *0288 F8DB A7 A4 CHANGE STA ,Y CHANGE BYTE IN MEMORY0289 F8DD A1 A4 CMPA ,Y DID MEMORY BYTE CHANGE?0290 F8DF 27 08 BEQ FORWRD $F9720291 F8E1 17 03 E8 LBSR OUT1S OUTPUT SPACE0292 F8E4 86 3F LDA #'? LOAD QUESTION MARK0293 F8E6 17 03 E5 LBSR OUTCH PRINT IT0294 F8E9 31 21 FORWRD LEAY 1,Y POINT TO NEXT HIGHER MEM LOCATION0295 F8EB 20 C2 BRA MEMC2 PRINT LOCATION & CONTENTS0296 F8ED 31 3F BACK LEAY -1,Y POINT TO LAST MEM LOCATION0297 F8EF 20 BE BRA MEMC2 PRINT LOCATION & CONTENTS0298 *0299 * "S" DISPLAY STACK0300 * HEX-ASCII DISPLAY OF CURRENT STACK CONTENTS FROM0301 ** CURRENT STACK POINTER TO INTERNAL STACK LIMIT.0302 *0303 F8F1 17 02 A2 DISSTK LBSR PRTSP PRINT CURRENT STACK POINTER0304 F8F4 1F 32 TFR U,Y0305 F8F6 8E DF C0 LDX #STACK LOAD INTERNAL STACK AS UPPER LIMIT0306 F8F9 30 1F LEAX -1,X POINT TO CURRENT STACK0307 F8FB 20 05 BRA MDUMP1 ENTER MEMORY DUMP OF STACK CONTENTS0308 *0309 * "E" DUMP MEMORY FOR EXAMINE IN HEX AND ASCII0310 * 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 BOUNDRIES0315 F900 29 06 BVS EDPRTN NEW COMMAND IF ILLEGAL HEX0316 F902 34 20 MDUMP1 PSHS Y COMPARE LOWER TO UPPER BOUNDS0317 F904 AC E1 CMPX ,S++ LOWER BOUNDS > UPPER BOUNDS?0318 F906 24 01 BCC AJDUMP IF NOT, DUMP HEX AND ASCII0319 F908 39 EDPRTN RTS ;0320 *0321 * ADJUST LOWER AND UPPER ADDRESS LIMITS0322 * TO EVEN 16 BYTE BOUNDRIES.0323 *0324 * IF LOWER ADDR = $45320325 * LOWER BOUNDS WILL BE ADJUSTED TO = $4530.0326 *0327 * IF UPPER ADDR = $45670328 * 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-REG0334 F90B C3 00 10 ADDD #$10 ADD 16 TO UPPER ADDRESS0335 F90E C4 F0 ANDB #$F0 MASK TO EVEN 16 BYTE BOUNDRY0336 F910 34 06 PSHS A,B SAVE ON STACK AS UPPER DUMP LIMIT0337 F912 1F 20 TFR Y,D $F9A5 GET LOWER ADDRESS IN D-REG0338 F914 C4 F0 ANDB #$F0 MASK TO EVEN 16 BYTE BOUNDRY0339 F916 1F 01 TFR D,X PUT IN X-REG AS LOWER DUMP LIMIT0340 F918 AC E4 NXTLIN CMPX ,S COMPARE LOWER TO UPPER LIMIT0341 F91A 27 05 BEQ SKPDMP IF EQUAL SKIP HEX-ASCII DUMP0342 F91C 17 03 9A LBSR INCHEK CHECK FOR INPUT FROM KEYBOARD0343 F91F 27 03 BEQ EDUMP0344 F921 32 62 SKPDMP LEAS 2,S READJUST STACK IF NOT DUMPING0345 F923 39 RTS ;0346 *0347 * PRINT 16 HEX BYTES FOLLOWED BY 16 ASCII CHARACTERS0348 * FOR EACH LINE THROUGHOUT ADDRESS LIMITS.0349 *0350 F924 34 10 EDUMP PSHS X PUSH LOWER ADDR LIMIT ON STACK0351 F926 8E FE B2 LDX #MSG5 POINT TO MSG " - "0352 F929 17 01 EE LBSR PSTRNG PRINT MSG0353 F92C AE E4 LDX ,S LOAD LOWER ADDR FROM TOP OF STACK0354 F92E 17 03 2E LBSR OUT4H PRINT THE ADDRESS0355 F931 17 03 96 LBSR OUT2S 2 SPACES0356 F934 C6 10 LDB #$10 LOAD COUNT OF 16 BYTES TO DUMP0357 F936 A6 80 ELOOP LDA ,X+ GET FROM MEMORY HEX BYTE TO PRINT0358 F938 17 03 2C LBSR OUT2H OUTPUT HEX BYTE AS ASCII0359 F93B 17 03 8E LBSR OUT1S OUTPUT SPACE0360 F93E 5A DECB $F9D1 DECREMENT BYTE COUNT0361 F93F 26 F5 BNE ELOOP CONTINUE TIL 16 HEX BYTES PRINTED0362 *0363 * PRINT 16 ASCII CHARACTERS0364 * IF NOT PRINTABLE OR NOT VALID0365 * ASCII PRINT A PERIOD (.)0366 F941 17 03 86 LBSR OUT2S 2 SPACES0367 F944 AE E1 LDX ,S++ GET LOW LIMIT FRM STACK - ADJ STACK0368 F946 C6 10 LDB #$10 SET ASCII CHAR TO PRINT = 160369 F948 A6 80 EDPASC LDA ,X+ GET CHARACTER FROM MEMORY0370 F94A 81 20 CMPA #$20 IF LESS THAN $20, NON-PRINTABLE?0371 F94C 25 04 BCS PERIOD IF SO, PRINT PERIOD INSTEAD0372 F94E 81 7E CMPA #$7E IS IT VALID ASCII?0373 F950 23 02 BLS PRASC IF SO PRINT IT0374 F952 86 2E PERIOD LDA #'. LOAD A PERIOD (.)0375 F954 17 03 77 PRASC LBSR OUTCH PRINT ASCII CHARACTER0376 F957 5A DECB DECREMENT COUNT0377 F958 26 EE BNE EDPASC0378 F95A 20 BC BRA NXTLIN0379 *0380 ***** "B" SET BREAKPOINT *****0381 *0382 F95C 17 02 B7 BRKPNT LBSR IN1ADR GET BREAKPOINT ADDRESS0383 F95F 29 1E BVS EXITBP EXIT IF INVALID HEX ADDR.0384 F961 8C DF C0 CMPX #STACK ADDRESS ILLEGAL IF >=$DFC00385 F964 24 1A BCC BPERR IF ERROR PRINT (?), EXIT0386 F966 34 10 PSHS X $FA82 PUSH BP ADDRESS ON STACK0387 F968 8E FF FF LDX #$FFFF LOAD DUMMY ADDR TO TEST BP TABLE0388 F96B 8D 55 BSR BPTEST TEST BP TABLE FOR FREE SPACE0389 F96D 35 10 PULS X POP BP ADDRESS FROM STACK0390 F96F 27 0F BEQ BPERR (Z) SET, OUT OF BP TABLE SPACE0391 F971 A6 84 LDA ,X GET DATA AT BREAKPOINT ADDRESS0392 F973 81 3F CMPA #$3F IS IT A SWI?0393 F975 27 09 BEQ BPERR IF SWI ALREADY, INDICATE ERROR0394 F977 A7 A0 STA ,Y+ SAVE DATA BYTE IN BP TABLE0395 F979 AF A4 STX ,Y SAVE BP ADDRESS IN BP TABLE0396 F97B 86 3F LDA #$3F LOAD A SWI ($3F)0397 F97D A7 84 STA ,X SAVE SWI AT BREAKPOINT ADDRESS0398 F97F 39 EXITBP RTS ;0399 *0400 * INDICATE ERROR SETTING BREAKPOINT0401 *0402 F980 17 03 49 BPERR LBSR OUT1S OUTPUT SPACE0403 F983 86 3F LDA #'? LOAD (?), INDICATE BREAKPOINT ERROR0404 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 TABLE0409 F98C C6 08 LDB #8 LOAD BREAKPOINT COUNTER0410 F98E 8D 18 XBPLP BSR RPLSWI REMOVE USED ENTRY IN BP TABLE0411 F990 5A DECB $FAAC DECREMENT BP COUNTER0412 F991 26 FB BNE XBPLP END OF BREAKPOINT TABLE?0413 F993 39 RTS0414 *0415 ***** SWI ENTRY POINT *****0416 *0417 F994 1F 43 SWIE TFR S,U TRANSFER STACK TO USER POINTER0418 F996 AE 4A LDX 10,U LOAD PC FROM STACK INTO X-REG0419 F998 30 1F LEAX -1,X ADJUST ADDR DOWN 1 BYTE.0420 F99A 8D 26 BSR BPTEST FIND BREAKPOINT IN BP TABLE0421 F99C 27 04 BEQ REGPR IF FOUND, REPLACE DATA AT BP ADDR0422 F99E AF 4A STX 10,U SAVE BREAKPOINT ADDR IN STACK0423 F9A0 8D 06 BSR RPLSWI GO REPLACE SWI WITH ORIGINAL DATA0424 F9A2 17 02 48 REGPR LBSR REGSTR GO PRINT REGISTERS0425 *0426 IFD TRAOPT0427 LDX #00428 STX TRACNT0429 ENDIF TRAOPT0429 ENDIF TRAOPT0430 *0431 F9A5 16 FE B9 LBRA NEXTCMD GET NEXT COMMAND0432 *0433 F9A8 AE 21 RPLSWI LDX 1,Y LOAD BP ADDRESS FROM BP TABLE0434 F9AA 8C DF C0 CMPX #STACK COMPARE TO TOP AVAILABLE USER MEMORY0435 F9AD 24 0A BCC FFSTBL GO RESET TABLE ENTRY TO $FF'S0436 F9AF A6 84 LDA ,X GET DATA FROM BP ADDRESS0437 F9B1 81 3F CMPA #$3F IS IT SWI?0438 F9B3 26 04 BNE FFSTBL IF NOT, RESET TABLE ENTRY TO $FF'S0439 F9B5 A6 A4 LDA ,Y GET ORIGINAL DATA FROM BP TABLE0440 F9B7 A7 84 STA ,X $FAD3 RESTORE DATA AT BP ADDRESS0441 F9B9 86 FF FFSTBL LDA #$FF LOAD $FF IN A-ACC0442 F9BB A7 A0 STA ,Y+ RESET BREAKPOINT TABLE DATA TO $FF'S0443 F9BD A7 A0 STA ,Y+ RESET BREAKPOINT TABLE ADDR TO $FF'S0444 F9BF A7 A0 STA ,Y+0445 F9C1 39 RTS0446 *0447 ** SEARCH BREAKPOINT TABLE FOR MATCH **0448 *0449 F9C2 10 8E DF E3 BPTEST LDY #BPTBL POINT TO BREAKPOINT TABLE0450 F9C6 C6 08 LDB #8 LOAD BREAKPOINT COUNTER0451 F9C8 A6 A0 FNDBP LDA ,Y+ LOAD DATA BYTE0452 F9CA AC A1 CMPX ,Y++ COMPARE ADDRESS, IS IT SAME?0453 F9CC 27 04 BEQ BPADJ IF SO, ADJUST POINTER FOR TABLE ENTRY0454 F9CE 5A DECB IF NOT, DECREMENT BREAKPOINT COUNTER0455 F9CF 26 F7 BNE FNDBP AND LOOK FOR NEXT POSSIBLE MATCH0456 F9D1 39 RTS ;0457 *0458 *0459 F9D2 31 3D BPADJ LEAY -3,Y MOVE POINTER TO BEGIN OF BP ENTRY0460 F9D4 39 RTS0461 *0462 IFD TRAOPT0463 *0464 ** TRACE from address AAAA BB bytes0465 *0466 TRACE LBSR ALTPC1 SET UP NEW PC0467 BVS TREXIT ADDRESS ERROR, EXIT0468 LBSR OUT1S0469 LBSR IN1ADR Fetch Byte Count0470 BVS TREXIT Byte Count error, EXIT0471 STX TRACNT0472 *0473 LDX NMI Save NMI Vector0474 STX NMISAV0475 LDX #NMIE Set up NMI for Tracing0476 STX NMI0477 LBSR TRAINZ Initialise Hardware0478 BRA TRACEG Start Trace0479 TREXIT RTS0480 *0481 * CRA0 = 0 CA1 IRQ DISAB, CRA0 = 1 CA1 IRQ ENAB0482 * CRA1 = 1 CA1 Rising edge IRQ0483 * CRA2 = 0 TADATA = Data Direction, CRA2 = 1 TADATA = I/O Register0484 * CRA3 = 0 CA2 = 0 output, CRA3 = 1 CA2 = 10485 * CRA4 = 1 ] CA2 = Set/Reset output0486 * CRA5 = 1 ]0487 * CRA6 = X CA2 Input Interrupt Flag0488 * CRA7 = X CA1 Interrupt Flag0489 *0490 * CRB0 = 0 CB1 IRQ DISAB, CRB0 = 1 CA1 IRQ ENAB0491 * CRB1 = 1 CB1 Rising edge IRQ0492 * CRB2 = 0 TBDATA = Data Direction, CRB2 = 1 TBDATA = I/O Register0493 * CRB3 = 0 CB2 = 0 output, CRB3 = 1 CB2 = 10494 * CRB4 = 1 ] CB2 = Set/Reset output0495 * CRB5 = 1 ]0496 * CRB6 = X CB2 Input Interrupt Flag0497 * CRB7 = X CB1 Interrupt Flag0498 *0499 *0500 ** TRACE NMI ENTRY POINT0501 *0502 NMIE TFR S,U0503 LDA #$36 Disable Interrupt, CA2 Low0504 STA TACTRL0505 LDA TADATA Clear Interrupt flag by reading data port0506 *0507 LBSR REGSTR DUMP REGISTERS0508 *0509 LDX 10,U TEST IF NEXT INSTRUCTION IS A SWI0510 LDA ,X0511 CMPA #$3F0512 BEQ TRACEX EXIT ON SWI0513 *0514 LDX TRACNT CHECK IF TRACE COUNT EXPIRED0515 BEQ TRACEX YES, GO BACK TO THE MONITOR0516 LEAX -1,X DECREMENT TRACE COUNT0517 STX TRACNT0518 *0519 ** TRACE GO (RESUME SINGLE STEP)0520 *0521 TRACEG TFR U,S SET UP PROGRAM STACK POINTER0522 LDA #TRADEL SET UP TIMER DELAY (NUMB CYCLES FOR RTI+1)0523 STA TADATA0524 LDA #$36 LOAD STROBE LOW0525 STA TACTRL0526 LDA TADATA CLEAR INTERRUPT0527 LDA #$36 RELEASE RESET0528 STA TBCTRL0529 LDA #$3F RELEASE LOAD, ENABLE CA1 NMI, CA1 RISING EDGE0530 STA TACTRL0531 RTI GO EXECUTE INSTRUCTION0532 *0533 TRACEX LDX NMISAV Restore NMI vector0534 STX NMI0535 LBRA NEXTCMD Jump back to the command loop.0536 *0537 ** TRACE HARDWARE INITIALISATION0538 *0539 TRAINZ LDA #$32 SELECT DDRA, CA2 LOW, NMI DISABLED0540 STA TACTRL0541 LDA #$3A SELECT DDRB, CB2 HIGH, FIRQ DISABLED0542 STA TBCTRL0543 LDA #$FF PORTA = OUTPUT0544 STA TADATA0545 LDA #$00 PORTB = INPUT0546 STA TBDATA0547 LDA #$36 SELECT OUTPUT REGISTER A, CA2 LOW0548 STA TACTRL0549 LDA #$3E SELECT OUTPUT REGISTER B, CB2 HIGH0550 STA TBCTRL0551 RTS0552 *0553 ENDIF TRAOPT0553 ENDIF TRAOPT0554 IFD MFDCOPT0555 *0556 ** "U" MINI DISK BOOT0557 *0558 MINBOOT TST CMDFDC0559 CLR DRVFDC0560 LDX #$00000561 LOOP LEAX $01,X0562 CMPX #$00000563 BNE LOOP0564 LDA #$0F0565 STA CMDFDC0566 BSR DELAY0567 LOOP1 LDB CMDFDC0568 BITB #$010569 BNE LOOP10570 LDA #$010571 STA SECFDC0572 BSR DELAY0573 LDA #$8C0574 STA CMDFDC0575 BSR DELAY0576 LDX #$C0000577 BRA LOOP30578 LOOP2 BITB #$020579 BEQ LOOP30580 LDA DATFDC0581 STA ,X+0582 LOOP3 LDB CMDFDC0583 BITB #$010584 BNE LOOP20585 BITB #$2C0586 BEQ LOOP40587 RTS0588 *0589 LOOP4 LDX #$C0000590 STX $0A,U0591 TFR U,S0592 RTI0593 *0594 DELAY LDB #$040595 LOOP5 DECB0596 BNE LOOP50597 RTS0598 ENDIF MFDCOPT0598 ENDIF MFDCOPT0599 *0600 IFD DMAFOPT0601 *0602 *** "D" DISK BOOT FOR DMAF2 ***0603 *0604 DBOOT LDA #$DE0605 STA DRVREG0606 LDA #$FF0607 STA PRIREG $FAF80608 STA CCREG0609 STA AAAREG0610 STA BBBREG0611 TST CCREG0612 LDA #$D80613 STA COMREG0614 LBSR DLY0615 DBOOT0 LDA COMREG0616 BMI DBOOT00617 LDA #$090618 STA COMREG0619 LBSR DLY0620 *0621 DISKWT LDA COMREG FETCH DRIVE STATUS0622 BITA #1 TEST BUSY BIT0623 BNE DISKWT LOOP UNTIL NOT BUSY0624 *0625 BITA #$100626 BNE DBOOT0627 *0628 LDX #$C000 LOGICAL ADDR. = $C0000629 BSR LRA GET 20 BIT PHYSICAL ADDR. OF LOG. ADDR.0630 ORA #$100631 STA CCCREG0632 TFR X,D0633 COMA ;0634 COMB ;0635 STD ADDREG0636 LDX #$FEFF LOAD DMA BYTE COUNT = $1000637 STX CNTREG STORE IN COUNT REGISTER0638 LDA #$FF LOAD THE CHANNEL REGISTER0639 STA CCREG0640 LDA #$FE SET CHANNEL 00641 STA PRIREG0642 LDA #1 SET SECTOR TO "1"0643 STA SECREG ISSUE COMMAND0644 LDA #$8C SET SINGLE SECTOR READ0645 STA COMREG ISSUE COMMAND0646 BSR DLY0647 *0648 * THE FOLLOWING CODE TESTS THE STATUS OF THE0649 * CHANNEL CONTROL REGISTER. IF "D7" IS NOT0650 * ZERO THEN IT WILL LOOP WAITING FOR "D7"0651 * TO GO TO ZERO. IF AFTER 65,536 TRIES IT0652 * IS STILL A ONE THE BOOT OPERATION WILL0653 * BE STARTED OVER FROM THE BEGINING.0654 *0655 CLRB ;0656 DBOOT1 PSHS B $FB550657 CLRB ;0658 DBOOT2 TST CCREG0659 BPL DBOOT30660 DECB ;0661 BNE DBOOT20662 PULS B0663 DECB0664 BNE DBOOT10665 BRA DBOOT0666 DBOOT3 PULS B0667 LDA COMREG0668 BITA #$1C0669 BEQ DBOOT40670 RTS ;0671 *0672 *0673 DBOOT4 LDB #$DE0674 STB DRVREG0675 LDX #$C0000676 STX 10,U0677 TFR U,S $FB7B0678 RTI ;0679 ENDIF DMAFOPT0679 ENDIF DMAFOPT0680 *0681 IFD CF8OPT0682 *0683 * COMPACT FLASH BOOT0684 *0685 CFBOOT BSR WAITRDY0686 LDA #HEADLBA0687 STA CF_HEAD0688 BSR WAITRDY0689 LDA #FEAT8BIT0690 STA CF_FEATURE0691 LDA #CMDFEATURE0692 STA CF_COMAND0693 BSR WAITRDY0694 *0695 * READ SECTORS FROM CF0696 *0697 CFREAD LDA #$010698 STA CF_SECCNT0699 CLRA0700 STA CF_SECNUM0701 STA CF_CYLLO0702 STA CF_CYLHI0703 *0704 LDA #CMDREAD ; IDE READ MULTIPLE0705 STA CF_COMAND0706 BSR WAITRDY0707 LDX #$C0000708 *0709 * READ LOOP0710 *0711 RDLOOP BSR WAITDRQ0712 LDA CF_DATA0713 STA ,X+0714 CMPX #$C2000715 BNE RDLOOP0716 *0717 LDX #$C0000718 STX $0A,U0719 TFR U,S0720 RTI0721 *0722 * WAIT UNTIL READY0723 *0724 WAITRDY LDA CF_STATUS0725 BITA #BUSY0726 BNE WAITRDY0727 LDA CF_STATUS0728 BITA #DRDY0729 BEQ WAITRDY0730 RTS0731 *0732 * WAIT FOR DATA REQUEST0733 *0734 WAITDRQ LDA CF_STATUS0735 BITA #DRQ0736 BEQ WAITDRQ0737 RTS0738 ENDIF CF8OPT0738 ENDIF CF8OPT0739 *0740 IFD IDEOPT0741 *0742 * XESS 16 BIT IDE BOOT0743 *0744 F9D5 CC 00 06 IDEBOOT LDD #AUXRESET0745 F9D8 FD E1 1E STD CF_AUX0746 F9DB CC 00 02 LDD #AUXRSTREL0747 F9DE FD E1 1E STD CF_AUX0748 F9E1 CC 00 E0 LDD #HEADLBA0749 F9E4 FD E1 0C STD CF_HEAD0750 F9E7 8D 2E BSR WAITRDY0751 *0752 * READ SECTORS FROM CF0753 *0754 F9E9 CC 00 01 LDD #$010755 F9EC FD E1 04 STD CF_SECCNT0756 F9EF 5F CLRB0757 F9F0 FD E1 06 STD CF_SECNUM0758 F9F3 FD E1 08 STD CF_CYLLO0759 F9F6 FD E1 0A STD CF_CYLHI0760 *0761 F9F9 C6 20 LDB #CMDREAD ; IDE READ MULTIPLE0762 F9FB FD E1 0E STD CF_COMAND0763 F9FE 8D 17 BSR WAITRDY0764 FA00 8E C0 00 LDX #$C0000765 *0766 * READ LOOP0767 *0768 FA03 8D 21 RDLOOP BSR WAITDRQ0769 FA05 FC E1 00 LDD CF_DATA0770 FA08 E7 80 STB ,X+0771 FA0A 8C C1 00 CMPX #$C1000772 FA0D 26 F4 BNE RDLOOP0773 *0774 FA0F 8E C0 00 LDX #$C0000775 FA12 AF 4A STX $0A,U0776 FA14 1F 34 TFR U,S0777 FA16 3B RTI0778 *0779 * WAIT UNTIL READY0780 *0781 FA17 FC E1 0E WAITRDY LDD CF_STATUS0782 FA1A C5 80 BITB #BUSY0783 FA1C 26 F9 BNE WAITRDY0784 FA1E FC E1 0E LDD CF_STATUS0785 FA21 C5 40 BITB #DRDY0786 FA23 27 F2 BEQ WAITRDY0787 FA25 39 RTS0788 *0789 * WAIT FOR DATA REQUEST0790 *0791 FA26 FC E1 0E WAITDRQ LDD CF_STATUS0792 FA29 C5 08 BITB #DRQ0793 FA2B 27 F9 BEQ WAITDRQ0794 FA2D 39 RTS0795 ENDIF IDEOPT0796 *0797 IFD RTCOPT0798 *0799 * CLOCK INTER FACE UTILITY0800 *0801 * TIME <Hours> <Minuits> <Seconds>0802 * If no argument is specified, the current time0803 * will be displayed.0804 *0805 * READ A REGISTER FROM THE COUNTER.0806 * The X Index rgister points to the register0807 * to be read. The Status Register is checked0808 * before and after the register is read before0809 * returning a value in accumulator A0810 *0811 RDCLK TST CLKSTA0812 BNE RDCLK0813 RDCLK1 LDA 0,X0814 TST CLKSTA0815 BNE RDCLK10816 RTS0817 *0818 * MAIN PROGRAM:0819 *0820 TIMSET LDX #COUNTR POINT TO TIMER0821 LBSR BYTE READ HOURS0822 BVS SHOWTM NO ARG, DISP TIME0823 STA HOUR,X0824 LBSR OUT1S0825 LBSR BYTE READ MINUITES0826 BVS SHOWTM0827 STA MINUIT,X0828 LBSR OUT1S0829 LBSR BYTE SECONDS.0830 BVS SHOWTM0831 STA SECOND,X0832 *0833 * DISPLAY CURRENT TIME0834 *0835 SHOWTM LBSR PCRLF0836 LDX #COUNTR+HOUR0837 LDB #30838 SHOWLP BSR RDCLK0839 LBSR OUT2H0840 LDA #':0841 LBSR OUTCH0842 LEAX -1,X0843 DECB0844 BNE SHOWLP0845 RTS0846 *0847 * INITIATE CLOCK.0848 * MASK INTERRUPTS.0849 *0850 CLKINZ CLR CINTCR MASK ALL INTERRUPTS0851 TST CINTSR CLEAR ANY INTERRUPTS0852 RTS0853 ENDIF RTCOPT0853 ENDIF RTCOPT0854 IFD DATOPT0855 *0856 ***** LRA LOAD REAL ADDRESS *****0857 *0858 * THE FOLLOWING CODE LOADS THE 20-BIT0859 * PHYSICAL ADDRESS OF A MEMORY BYTE0860 * INTO THE "A" AND "X" REGISTERS. THIS0861 * ROUTINE IS ENTERED WITH THE LOGICAL0862 * ADDRESS OF A MEMORY BYTE IN THE "IX"0863 * REGISTER. EXIT IS MADE WITH THE HIGH-0864 * ORDER FOUR BITS OF THE 20-BIT PHYSICAL0865 * ADDRESS IN THE "A" REGISTER, AND THE0866 * LOW-ORDER 16-BITS OF THE 20-BIT0867 * PHYSICAL ADDRESS IN THE "IX" REGISTER.0868 * ALL OTHER REGISTERS ARE PRESERVED.0869 * THIS ROUTINE IS REQUIRED SINCE THE0870 * DMAF1 AND DMAF2 DISK CONTROLLERS MUST0871 * PRESENT PHYSICAL ADDRESSES ON THE0872 * SYSTEM BUS.0873 *0874 FA2E 34 36 LRA PSHS A,B,X,Y PUSH REGISTERS ON STACK0875 FA30 A6 62 LDA 2,S GET MSB LOGICAL ADDR FRM X REG ON STACK0876 FA32 44 LSRA ;0877 FA33 44 LSRA ADJ FOR INDEXED INTO0878 FA34 44 LSRA CORRESPONDING LOCATION0879 FA35 44 LSRA IN LRA TABLE0880 FA36 10 8E DF D0 LDY #LRARAM LOAD LRA TABLE BASE ADDRESS0881 FA3A E6 A6 LDB A,Y GET PHYSICAL ADDR. DATA FROM LRA TABLE0882 FA3C 54 LSRB ADJ. REAL ADDR. TO REFLECT EXTENDED0883 FA3D 54 LSRB PHYSICAL ADDRESS.0884 FA3E 54 LSRB EXTENDED MS 4-BITS ARE RETURNED0885 FA3F 54 LSRB IN THE "A" ACCUMULATOR0886 FA40 E7 E4 STB ,S MS 4 BITS IN A ACCUM. STORED ON STACK0887 FA42 E6 A6 LDB A,Y LOAD REAL ADDRESS DATA FROM LRA TABLE0888 FA44 53 COMB COMP TO ADJ FOR PHYSICAL ADDR. IN X REG0889 FA45 58 ASLB ADJ DATA FOR RELOCATION IN X REG0890 FA46 58 ASLB ;0891 FA47 58 ASLB $FB970892 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 ADDRESS0895 FA4D A7 62 STA 2,S SAVE IT IN X REG ON STACK0896 FA4F EA 62 ORB 2,S SET MS BYTE IN X REG TO ADJ PHY ADDR.0897 *0898 * PLUS LS NIBBLE OF LOGICAL ADDRESS0899 FA51 E7 62 STB 2,S SAVE AS LS 16 BITS OF PHY ADDR IN X REG0900 * ON STACK0901 FA53 35 B6 PULS A,B,X,Y,PC POP REGS. FROM STACK0902 ENDIF DATOPT0903 *0904 * DELAY LOOP0905 *0906 FA55 34 04 DLY PSHS B SAVE CONTENTS OF "B"0907 FA57 C6 20 LDB #$20 GET LOOP DELAY VALUE0908 FA59 5A SUB1 DECB SUBTRACT ONE FROM VALUE0909 FA5A 26 FD BNE SUB1 LOOP UNTIL ZERO0910 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 ACINIZ0916 FA61 86 11 LDA #$11 LOAD 'DC1' CASS. READ ON CODE0917 FA63 17 02 68 LBSR OUTCH OUTPUT IT TO TERMINAL PORT0918 FA66 7F DF E2 CLR ECHO TURN OFF ECHO FLAG0919 FA69 17 02 2A LOAD1 LBSR ECHON INPUT 8 BIT BYTE WITH NO ECHO0920 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 ECHON0923 FA73 81 39 CMPA #'9 IS IT A "9" , END OF FILE CHAR ?0924 FA75 27 3D BEQ LOAD21 IF SO, EXIT LOAD0925 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 COUNT0928 FA7E 34 02 PSHS A PUSH COUNT ON STACK0929 FA80 29 26 BVS LODERR (V) C-CODE SET, ILLEGAL HEX0930 FA82 17 01 91 LBSR IN1ADR INPUT LOAD ADDRESS0931 FA85 29 21 BVS LODERR (V) C-CODE SET, ADDR NOT HEX0932 FA87 34 10 PSHS X PUSH ADDR ON STACK0933 FA89 E6 E0 LDB ,S+ LOAD MSB OF ADDR AS CHECKSUM BYTE0934 FA8B EB E0 ADDB ,S+ ADD LSB OF ADDR TO CHECKSUM0935 FA8D EB E4 ADDB ,S ADD BYTE COUNT BYTE TO CHECKSUM0936 FA8F 6A E4 DEC ,S $FC37 DECREMENT BYTE COUNT 2 TO BYPASS0937 FA91 6A E4 DEC ,S ADDRESS BYTES.0938 FA93 34 04 LOAD10 PSHS B PUSH CHECKSUM ON STACK0939 FA95 17 01 8E LBSR BYTE INPUT DATA BYTE (2 HEX CHAR)0940 FA98 35 04 PULS B POP CHECKSUM FROM STACK0941 FA9A 29 0C BVS LODERR (V) SET, DATA BYTE NOT HEX0942 FA9C 34 02 PSHS A PUSH DATA BYTE ON STACK0943 FA9E EB E0 ADDB ,S+ ADD DATA TO CHECKSUM, AUTO INC STACK0944 FAA0 6A E4 DEC ,S DECREMENT BYTE COUNT 10945 FAA2 27 05 BEQ LOAD16 IF BYTE COUNT ZERO, TEST CHECKSUM0946 FAA4 A7 80 STA ,X+ SAVE DATA BYTE IN MEMORY0947 FAA6 20 EB BRA LOAD10 GET NEXT DATA BYTE0948 FAA8 5F LODERR CLRB ;ERROR CONDITION, ZERO CHECKSUM ;0949 FAA9 35 02 LOAD16 PULS A ADJUST STACK (REMOVE BYTE COUNT)0950 FAAB C1 FF CMPB #$FF CHECKSUM OK?0951 FAAD 27 BA BEQ LOAD1 IF SO, LOAD NEXT LINE0952 FAAF 86 3F LDA #'? LOAD (?) ERROR INDICATOR0953 FAB1 17 02 1A LBSR OUTCH OUTPUT IT TO TERMINAL0954 FAB4 73 DF E2 LOAD21 COM ECHO TURN ECHO ON0955 FAB7 86 13 LDA #$13 $FC5F LOAD 'DC3' CASS. READ OFF CODE0956 FAB9 16 02 12 LBRA OUTCH OUTPUT IT0957 *0958 ***** "P" PUNCH MIKBUG TAPE *****0959 *0960 FABC 6F E2 PUNCH CLR ,-S CLEAR RESERVED BYTE ON STACK0961 FABE 17 01 4A LBSR IN2ADR GET BEGIN AND END ADDRESS0962 FAC1 34 30 PSHS X,Y SAVE ADDRESSES ON STACK0963 FAC3 29 4D BVS PUNEXT (V) C-CODE SET, EXIT PUNCH0964 FAC5 AC 62 CMPX 2,S COMPARE BEGIN TO END ADDR0965 FAC7 25 49 BCS PUNEXT IF BEGIN GREATER THAN END, EXIT PUNCH0966 FAC9 30 01 LEAX 1,X INCREMENT END ADDRESS0967 FACB AF E4 STX ,S STORE END ADDR ON STACK0968 FACD BD FC E3 JSR ACINIZ0969 FAD0 86 12 LDA #$12 LOAD 'DC2' PUNCH ON CODE0970 FAD2 17 01 F9 LBSR OUTCH OUTPUT IT TO TERMINAL0971 FAD5 EC E4 PUNCH2 LDD ,S LOAD END ADDR IN D-ACC0972 FAD7 A3 62 SUBD 2,S SUBTRACT BEGIN FROM END0973 FAD9 27 06 BEQ PUNCH3 SAME, PUNCH 32 BYTES DEFAULT0974 FADB 10 83 00 20 CMPD #$20 LESS THAN 32 BYTES?0975 FADF 23 02 BLS PUNCH4 PUNCH THAT MANY BYTES0976 FAE1 C6 20 PUNCH3 LDB #$20 LOAD BYTE COUNT OF 32.0977 FAE3 E7 64 PUNCH4 STB 4,S STORE ON STACK AS BYTE COUNT0978 FAE5 8E FE F3 LDX #MSG20 POINT TO MSG "S1"0979 FAE8 17 00 2F LBSR PSTRNG PRINT MSG0980 FAEB CB 03 ADDB #3 ADD 3 BYTES TO BYTE COUNT0981 FAED 1F 98 TFR B,A GET BYTE COUNT IN A-ACC TO PUNCH0982 FAEF 17 01 75 LBSR OUT2H OUTPUT BYTE COUNT0983 FAF2 AE 62 LDX 2,S LOAD BEGIN ADDRESS0984 FAF4 17 01 68 LBSR OUT4H PUNCH ADDRESS0985 FAF7 EB 62 ADDB 2,S ADD ADDR MSB TO CHECKSUM0986 FAF9 EB 63 ADDB 3,S ADD ADDR LSB TO CHECKSUM0987 FAFB EB 84 PUNCHL ADDB ,X ADD DATA BYTE TO CHECKSUM0988 FAFD A6 80 LDA ,X+ LOAD DATA BYTE TO PUNCH0989 FAFF 17 01 65 LBSR OUT2H OUTPUT DATA BYTE0990 FB02 6A 64 DEC 4,S DECREMENT BYTE COUNT0991 FB04 26 F5 BNE PUNCHL NOT DONE, PUNCH NEXT BYTE0992 FB06 53 COMB 1's COMPLIMENT CHECKSUM BYTE0993 FB07 1F 98 TFR B,A GET IT IN A-ACC TO PUNCH0994 FB09 17 01 5B LBSR OUT2H OUTPUT CHECKSUM BYTE0995 FB0C AF 62 STX 2,S SAVE X-REG IN STACK AS NEW PUNCH ADDR0996 FB0E AC E4 CMPX ,S COMPARE IT TO END ADDR0997 FB10 26 C3 BNE PUNCH2 $FCB5 PUNCH NOT DONE, CONT.0998 FB12 86 14 PUNEXT LDA #$14 LOAD 'DC4' PUNCH OFF CODE0999 FB14 17 01 B7 LBSR OUTCH OUTPUT IT1000 FB17 32 65 LEAS 5,S READJUST STACK POINTER1001 FB19 39 RTS ;1002 *1003 * PRINT STRING PRECEEDED BY A CR & LF.1004 *1005 FB1A 8D 02 PSTRNG BSR PCRLF PRINT CR/LF1006 FB1C 20 71 BRA PDATA PRINT STRING POINTED TO BY IX1007 *1008 * PCRLF1009 *1010 FB1E 34 10 PCRLF PSHS X SAVE IX1011 FB20 8E FE A4 LDX #MSG2+1 POINT TO MSG CR/LF + 3 NULS1012 FB23 17 00 69 LBSR PDATA PRINT MSG1013 FB26 35 90 PULS X,PC RESTORE IX & RETURN1014 *1015 * LONG BRANCHES TO COMMON ROUTINES1016 *1017 FB28 16 01 A1 JOUT1S LBRA OUT1S1018 FB2B 16 00 F8 JBYTE LBRA BYTE1019 FB2E 16 00 E5 JIN1ADR LBRA IN1ADR1020 *1021 * ALTER "PC" PROGRAM COUNTER1022 *1023 FB31 17 00 91 ALTRPC LBSR PRTPC $FCF5 PRINT MSG " PC = "1024 FB34 8D F2 ALTPC1 BSR JOUT1S OUTPUT SPACE1025 FB36 8D F6 BSR JIN1ADR GET NEW CONTENTS FOR "PC"1026 FB38 29 02 BVS ALTPCD EXIT IF INVALID HEX1027 FB3A AF 4A STX 10,U POKE IN NEW CONTENTS1028 FB3C 39 ALTPCD RTS ;1029 *1030 * ALTER "U" USER STACK POINTER1031 *1032 FB3D 8D 61 ALTRU BSR PRTUS $FCCA PRINT MSG " US = "1033 FB3F 8D E7 BSR JOUT1S OUTPUT SPACE1034 FB41 8D EB BSR JIN1ADR1035 FB43 29 02 BVS ALTUD1036 FB45 AF 48 STX 8,U1037 FB47 39 ALTUD RTS ;1038 *1039 * ALTER "Y" INDEX REGISTER1040 *1041 FB48 8D 72 ALTRY BSR PRTIY PRINT MSG " IY = "1042 FB4A 8D DC BSR JOUT1S OUTPUT SPACE1043 FB4C 8D E0 BSR JIN1ADR1044 FB4E 29 02 BVS ALTYD1045 FB50 AF 46 STX 6,U $F8F01046 FB52 39 ALTYD RTS ;1047 *1048 * ALTER "X" INDEX REGISTER1049 *1050 FB53 8D 5E ALTRX BSR PRTIX $FCE0 PRINT MSG " IX = "1051 FB55 8D D1 BSR JOUT1S OUTPUT SPACE1052 FB57 8D D5 BSR JIN1ADR1053 FB59 29 02 BVS ALTXD1054 FB5B AF 44 STX 4,U1055 FB5D 39 ALTXD RTS ;1056 *1057 * ALTER "DP" DIRECT PAGE REGISTER1058 *1059 FB5E 8D 49 ALTRDP BSR PRTDP $FCD5 PRINT MSG " DP = "1060 FB60 8D C6 BSR JOUT1S OUTPUT SPACE1061 FB62 8D C7 BSR JBYTE INPUT BYTE (2 HEX CHAR)1062 FB64 29 02 BVS ALTDPD1063 FB66 A7 43 STA 3,U1064 FB68 39 ALTDPD RTS ;1065 *1066 * ALTER "B" ACCUMULATOR1067 *1068 FB69 8D 6C ALTRB BSR PRTB $FD09 PRINT MSG " B = "1069 FB6B 8D BB BSR JOUT1S OUTPUT SPACE1070 FB6D 8D BC BSR JBYTE INPUT BYTE (2 HEX CHAR)1071 FB6F 29 02 BVS ALTBD1072 FB71 A7 42 STA 2,U1073 FB73 39 ALTBD RTS $F91C1074 *1075 * ALTER "A" ACCUMULATOR1076 *1077 FB74 8D 58 ALTRA BSR PRTA $FCFF RINT MSG " A = "1078 FB76 8D B0 BSR JOUT1S OUTPUT SPACE1079 FB78 8D B1 BSR JBYTE INPUT BYTE (2 HEX CHAR)1080 FB7A 29 02 BVS ALTAD1081 FB7C A7 41 STA 1,U1082 FB7E 39 ALTAD RTS ;1083 *1084 * ALTER "CC" REGISTER1085 *1086 FB7F 8D 5F ALTRCC BSR PRTCC $FD13 PRINT MSG " CC: "1087 FB81 8D A5 BSR JOUT1S OUTPUT SPACE1088 FB83 8D A6 BSR JBYTE INPUT BYTE (2 HEX CHAR)1089 FB85 29 04 BVS ALTCCD1090 FB87 8A 80 ORA #$80 SETS "E" FLAG IN PRINT LIST1091 FB89 A7 C4 STA ,U1092 FB8B 39 ALTCCD RTS ;1093 *1094 * PDATA1095 *1096 FB8C 17 01 3F PRINT LBSR OUTCH1097 FB8F A6 80 PDATA LDA ,X+ GET 1st CHAR. TO PRINT1098 FB91 81 04 CMPA #4 IS IT EOT?1099 FB93 26 F7 BNE PRINT IF NOT EOT PRINT IT1100 FB95 39 RTS ;1101 *1102 * PRINT REGISTERS1103 *1104 FB96 8E FE B6 PRTSP LDX #MSG10 POINT TO MSG "SP="1105 FB99 8D F4 BSR PDATA PRINT MSG1106 FB9B 1F 31 TFR U,X1107 FB9D 16 00 BF JOUT4H LBRA OUT4H1108 *1109 FBA0 8E FE C2 PRTUS LDX #MSG12 POINT TO MSG "US="1110 FBA3 8D EA BSR PDATA PRINT MSG1111 FBA5 AE 48 LDX 8,U1112 FBA7 20 F4 BRA JOUT4H1113 *1114 FBA9 8E FE D4 PRTDP LDX #MSG15 POINT TO MSG "DP="1115 FBAC 8D E1 BSR PDATA PRINT MSG1116 FBAE A6 43 LDA 3,U1117 FBB0 16 00 B4 JOUT2H LBRA OUT2H OUTPUT HEX BYTE AS ASCII1118 *1119 FBB3 8E FE CE PRTIX LDX #MSG14 POINT TO MSG "IX="1120 FBB6 8D D7 BSR PDATA PRINT MSG1121 FBB8 AE 44 LDX 4,U $FCE61122 FBBA 20 E1 BRA JOUT4H1123 *1124 FBBC 8E FE C8 PRTIY LDX #MSG13 POINT TO MSG "IY="1125 FBBF 8D CE BSR PDATA PRINT MSG1126 FBC1 AE 46 LDX 6,U1127 FBC3 20 D8 BRA JOUT4H1128 *1129 FBC5 8E FE BC PRTPC LDX #MSG11 POINT TO MSG "PC="1130 FBC8 8D C5 BSR PDATA PRINT MSG1131 FBCA AE 4A LDX 10,U1132 FBCC 20 CF BRA JOUT4H1133 *1134 FBCE 8E FE DA PRTA LDX #MSG16 POINT TO MSG "A="1135 FBD1 8D BC BSR PDATA PRINT MSG1136 FBD3 A6 41 LDA 1,U1137 FBD5 20 D9 BRA JOUT2H OUTPUT HEX BYTE AS ASCII1138 *1139 FBD7 8E FE DF PRTB LDX #MSG17 POINT TO MSG "B="1140 FBDA 8D B3 BSR PDATA PRINT MSG1141 FBDC A6 42 LDA 2,U1142 FBDE 20 D0 BRA JOUT2H OUTPUT HEX BYTE AS ASCII1143 *1144 FBE0 8E FE E4 PRTCC LDX #MSG18 POINT TO MSG "CC:"1145 FBE3 8D AA BSR PDATA PRINT MSG1146 FBE5 A6 C4 LDA ,U1147 FBE7 8E FE EB LDX #MSG19 POINT TO MSG "EFHINZVC"1148 FBEA 16 00 90 LBRA BIASCI OUTPUT IN BINARY/ASCII FORMAT1149 *1150 * "R" DISPLAY REGISTERS1151 *1152 FBED 8E FE B2 REGSTR LDX #MSG5 POINT TO MSG " - "1153 FBF0 17 FF 27 LBSR PSTRNG PRINT MSG1154 FBF3 8D A1 BSR PRTSP $FCBF1155 FBF5 8D A9 BSR PRTUS $FCCA1156 FBF7 8D B0 BSR PRTDP $FCD51157 FBF9 8D B8 BSR PRTIX $FCE01158 FBFB 8D BF BSR PRTIY $FCEB1159 FBFD 8E FE B2 LDX #MSG5 POINT TO MSG " - "1160 FC00 17 FF 17 LBSR PSTRNG PRINT MSG1161 FC03 8D C0 BSR PRTPC $FCF51162 FC05 8D C7 BSR PRTA $FCFF1163 FC07 8D CE BSR PRTB $FD091164 FC09 20 D5 BRA PRTCC $FD131165 *1166 * THE FOLLOWING ROUTINE LOOPS WAITING FOR THE1167 * 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" BIT1170 * IN THE C-CODE REG. IS SET IF AN INVALID HEX1171 * ADDRESS IS INPUT.1172 *1173 FC0B 8D 09 IN2ADR BSR IN1ADR GET FIRST ADDRESS1174 FC0D 29 4D BVS NOTHEX EXIT IF NOT VALID HEX1175 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 THE1180 * OPERATOR TO INPUT ONE VALID HEX ADDRESS. THE1181 * 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 HEX1185 FC1A 1F 01 TFR D,X1186 FC1C 8D 08 BSR BYTE INPUT BYTE (2 HEX CHAR)1187 FC1E 29 3C BVS NOTHEX1188 FC20 34 10 PSHS X1189 FC22 A7 61 STA 1,S1190 FC24 35 90 PULS X,PC1191 *1192 ***** INPUT BYTE (2 HEX CHAR.) *****1193 *1194 FC26 8D 11 BYTE BSR INHEX GET HEX LEFT1195 FC28 29 32 BVS NOTHEX EXIT IF NOT VALID HEX1196 FC2A 48 ASLA ;1197 FC2B 48 ASLA ;1198 FC2C 48 ASLA ; SHIFT INTO LEFT NIBBLE1199 FC2D 48 ASLA ;1200 FC2E 1F 89 TFR A,B PUT HEXL IN "B"1201 FC30 8D 07 BSR INHEX GET HEX RIGHT1202 FC32 29 28 BVS NOTHEX EXIT IF NOT VALID HEX1203 FC34 34 04 PSHS B PUSH HEXL ON STACK1204 FC36 AB E0 ADDA ,S+ ADD HEXL TO HEXR AND ADJ. STK1205 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 HEX1211 FC3F 81 39 CMPA #'9 IS IT < OR = "9" ?1212 FC41 22 03 BHI INHEXA IF > MAYBE IT'S ALPHA1213 FC43 80 30 SUBA #$30 ASCII ADJ. NUMERIC1214 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 HEX1219 FC4A 81 46 CMPA #'F IS IT < OR = "F" ?1220 FC4C 22 03 BHI INHEXL IF > IT AIN'T HEX1221 FC4E 80 37 SUBA #$37 ASCII ADJ. ALPHA1222 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 HEX1226 FC55 81 66 CMPA #'f IS IT < "f"1227 FC57 22 03 BHI NOTHEX IF > IT AIN'T HEX1228 FC59 80 57 SUBA #$57 ADJUST TO LOWER CASE1229 FC5B 39 RTS ;1230 *1231 *1232 FC5C 1A 02 NOTHEX ORCC #2 SET (V) FLAG IN C-CODES REGISTER1233 FC5E 39 RTS ;1234 *1235 *1236 FC5F 34 10 OUT4H PSHS X PUSH X-REG. ON THE STACK1237 FC61 35 02 PULS A POP MS BYTE OF X-REG INTO A-ACC.1238 FC63 8D 02 BSR OUTHL OUTPUT HEX LEFT1239 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 STACK1242 FC69 44 LSRA CONVERT UPPER HEX NIBBLE TO ASCII1243 FC6A 44 LSRA ;1244 FC6B 44 LSRA ;1245 FC6C 44 LSRA ;1246 FC6D 8D 04 BSR XASCII PRINT HEX NIBBLE AS ASCII1247 FC6F 35 02 OUTHR PULS A CONVERT LOWER HEX NIBBLE TO ASCII1248 FC71 84 0F ANDA #$0F STRIP LEFT NIBBLE1249 FC73 8B 30 XASCII ADDA #$30 ASCII ADJ1250 FC75 81 39 CMPA #$39 IS IT < OR = "9" ?1251 FC77 2F 02 BLE OUTC IF LESS, OUTPUT IT1252 FC79 8B 07 ADDA #7 IF > MAKE ASCII LETTER1253 FC7B 20 51 OUTC BRA OUTCH OUTPUT CHAR1254 *1255 * BINARY / ASCII --- THIS ROUTINE1256 * OUTPUTS A BYTE IN ENHANCED1257 * BINARY FORMAT. THE ENHANCEMENT1258 * IS DONE BY SUBSTITUTING ASCII1259 * LETTERS FOR THE ONES IN THE BYTE.1260 * THE ASCII ENHANCEMENT LETTERS1261 * ARE OBTAINED FROM THE STRING1262 * POINTED TO BY THE INDEX REG. "X".1263 *1264 FC7D 34 02 BIASCI PSHS A SAVE "A" ON STACK1265 FC7F C6 08 LDB #8 PRESET LOOP# TO BITS PER BYTE1266 FC81 A6 80 OUTBA LDA ,X+ GET LETTER FROM STRING1267 FC83 68 E4 ASL ,S TEST BYTE FOR "1" IN B71268 FC85 25 02 BCS PRTBA IF ONE PRINT LETTER1269 FC87 86 2D LDA #'- IF ZERO PRINT "-"1270 FC89 8D 43 PRTBA BSR OUTCH PRINT IT1271 FC8B 8D 3F BSR OUT1S PRINT SPACE1272 FC8D 5A DECB SUB 1 FROM #BITS YET TO PRINT1273 FC8E 26 F1 BNE OUTBA1274 FC90 35 82 PULS A,PC1275 *1276 IFD EXTOPT1277 *1278 * EXTENDED USER COMMANDS1279 *1280 FC92 6E 9F F0 00 USRCMD JMP [MONEXT+EXTCMD]1281 ENDIF EXTOPT1282 *1283 *1284 FC96 7D DF E2 ECHON TST ECHO IS ECHO REQUIRED ?1285 FC99 27 06 BEQ INCH ECHO NOT REQ. IF CLEAR1286 *1287 * INCHE1288 *1289 * ---GETS CHARACTER FROM TERMINAL AND1290 * ECHOS SAME. THE CHARACTER IS RETURNED1291 * IN THE "A" ACCUMULATOR WITH THE PARITY1292 * BIT MASKED OFF. ALL OTHER REGISTERS1293 * ARE PRESERVED.1294 *1295 FC9B 8D 04 INCHE BSR INCH GET CHAR FROM TERMINAL1296 FC9D 84 7F ANDA #$7F STRIP PARITY FROM CHAR.1297 FC9F 20 2D BRA OUTCH ECHO CHAR TO TERMINAL1298 *1299 * INCH1300 *1301 * GET CHARACTER FROM TERMINAL. RETURN1302 * CHARACTER IN "A" ACCUMULATOR AND PRESERVE1303 * ALL OTHER REGISTERS. THE INPUT CHARACTER1304 * IS 8 BITS AND IS NOT ECHOED.1305 *1306 *1307 FCA1 34 10 INCH PSHS X SAVE IX1308 FCA3 BE DF E0 GETSTA LDX CPORT POINT TO TERMINAL PORT1309 FCA6 A6 84 LDA ,X FETCH PORT STATUS1310 FCA8 85 01 BITA #1 TEST READY BIT, RDRF ?1311 IFD PS2OPT1312 FCAA 26 09 BNE GETST11313 FCAC 8E E0 20 LDX #PS2KBD1314 FCAF A6 84 LDA ,X1315 FCB1 85 01 BITA #11316 ENDIF PS2OPT1317 FCB3 27 EE BEQ GETSTA IF NOT RDY, THEN TRY AGAIN1318 FCB5 A6 01 GETST1 LDA 1,X FETCH CHAR1319 FCB7 35 90 PULS X,PC RESTORE IX1320 *1321 * INCHEK1322 *1323 * CHECK FOR A CHARACTER AVAILABLE FROM1324 * THE TERMINAL. THE SERIAL PORT IS CHECKED1325 * FOR READ READY. ALL REGISTERS ARE1326 * PRESERVED, AND THE "Z" BIT WILL BE1327 * 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 STATUS1332 FCBF 85 01 BITA #1 TEST READY BIT, RDRF ?1333 IFD PS2OPT1334 FCC1 26 05 BNE INCHEK11335 FCC3 B6 E0 20 LDA PS2KBD1336 FCC6 85 01 BITA #1 TEST READY BIT< RDRF ?1337 ENDIF PS2OPT1338 FCC8 35 82 INCHEK1 PULS A,PC RESTORE A ACCUM.1339 *1340 FCCA 8D 00 OUT2S BSR OUT1S OUTPUT 2 SPACES1341 FCCC 86 20 OUT1S LDA #$20 OUTPUT 1 SPACE1342 *1343 *1344 * OUTCH1345 *1346 * OUTPUT CHARACTER TO TERMINAL.1347 * THE CHAR. TO BE OUTPUT IS1348 * PASSED IN THE A REGISTER.1349 * ALL REGISTERS ARE PRESERVED.1350 *1351 OUTCH IFD VDUOPT1352 FCCE 8D 45 BSR VOUTCH1353 ENDIF VDUOPT1354 IFD DG640OPT1355 BSR VOUTCH1356 ENDIF DG640OPT1356 ENDIF DG640OPT1357 FCD0 34 12 AOUTCH PSHS A,X SAVE A ACCUM AND IX1358 FCD2 BE DF E0 LDX CPORT GET ADDR. OF TERMINAL1359 FCD5 A6 84 FETSTA LDA ,X FETCH PORT STATUS1360 FCD7 85 02 BITA #2 TEST TDRE, OK TO XMIT ?1361 FCD9 27 FA BEQ FETSTA IF NOT LOOP UNTIL RDY1362 FCDB 35 02 PULS A GET CHAR. FOR XMIT1363 FCDD A7 01 STA 1,X XMIT CHAR.1364 FCDF 35 90 PULS X,PC RESTORE IX1365 *1366 * IO INITIALIZATION1367 *1368 FCE1 IOINIZ EQU *1369 IFD VDUOPT1370 FCE1 8D 13 BSR VINIZ1371 ENDIF VDUOPT1372 IFD DG640OPT1373 BSR VINIZ1374 ENDIF DG640OPT1374 ENDIF DG640OPT1375 FCE3 BE DF E0 ACINIZ LDX CPORT POINT TO CONTROL PORT ADDRESS1376 FCE6 86 03 LDA #3 RESET ACIA PORT CODE1377 FCE8 A7 84 STA ,X STORE IN CONTROL REGISTER1378 FCEA 86 11 LDA #$11 SET 8 DATA, 2 STOP AN 0 PARITY1379 FCEC A7 84 STA ,X STORE IN CONTROL REGISTER1380 FCEE 6D 01 TST 1,X ANYTHING IN DATA REGISTER?1381 FCF0 86 FF LDA #$FF TURN ON ECHO FLAG1382 FCF2 B7 DF E2 STA ECHO1383 FCF5 39 RTS1384 *1385 IFD VDUOPT1386 *1387 ***************************************************1388 * VDU8 ADM3A REGISTER-MAPPED EMULATOR *1389 * *1390 * 80 x 25 Characters1391 *1392 ***************************************************1393 *1394 ***************************************************1395 * INITIALIZE EMULATOR *1396 ***************************************************1397 *1398 FCF6 8E E0 30 VINIZ LDX #VDU1399 FCF9 CC 00 00 LDD #01400 FCFC FD DF FB STD COLADX AND ROWADX1401 FCFF A7 02 STA VDUCOL,X1402 FD01 E7 03 STB VDUROW,X1403 FD03 E7 04 STB VDUOFF,X1404 FD05 FD DF FD STD NEWROW AND ESCFLG1405 FD08 C6 02 LDB #$021406 FD0A E7 01 STB VDUATT,X1407 FD0C 7F DF FE CLR ESCFLG1408 FD0F 86 1B LDA #$1B SEND ESCAPE1409 FD11 8D 02 BSR VOUTCH1410 FD13 86 59 LDA #'Y CLEAR TO END OF SCREEN1411 *1412 ** VIDEO OUTPUT ROUTINE1413 *1414 FD15 34 16 VOUTCH PSHS A,B,X SAVE REGISTERS1415 FD17 8E E0 30 LDX #VDU POINT TO VDU REGISTERS1416 *1417 ** CHECK FOR ESCAPE SEQUENCE1418 *1419 FD1A 7D DF FE TST ESCFLG ESCAPE ACTIVE?1420 FD1D 27 04 BEQ SOROU1 BRANCH IF NOT1421 FD1F 8D 74 BSR ESCAPE ELSE DO ESCAPE1422 FD21 20 0D BRA RETURN AND RETURN1423 *1424 ** CHECK FOR CONTROL CHARACTERS1425 *1426 FD23 81 20 SOROU1 CMPA #$20 CONTROL CODES?1427 FD25 24 04 BHS SOROU21428 FD27 8D 09 BSR CONTRL BRANCH IF SO1429 FD29 20 05 BRA RETURN1430 *1431 ** OUTPUT TEXT CHARACTER1432 *1433 FD2B A7 84 SOROU2 STAA VDUCHR,X DISPLAY CHARACTER1434 FD2D 17 00 C5 LBSR NEWCOL UPDATE COLUMN1435 *1436 ** DISPLAY CURSOR AND RETURN1437 *1438 FD30 35 96 RETURN PULS A,B,X,PC RESTORE REGISTERS AND RETURN1439 *1440 ***************************************************1441 * CONTROL CODE HANDLERS *1442 ***************************************************1443 *1444 FD32 81 08 CONTRL CMPA #$08 CTRL H - BACKSPACE ?1445 FD34 10 27 00 41 LBEQ BACKSP1446 FD38 81 1B CMPA #$1B ESCAPE SEQUENCE?1447 FD3A 10 27 00 6C LBEQ SETESC1448 FD3E 81 1A CMPA #$1A CTRL Z - Clear Screen1449 FD40 10 27 00 8E LBEQ CLRSCR1450 FD44 81 16 CMPA #$16 CTRL ^ - Home1451 FD46 10 27 00 45 LBEQ HOME1452 FD4A 81 0D CMPA #$D CTRL M - RETURN?1453 FD4C 10 27 00 99 LBEQ CRETN1454 FD50 81 0C CMPA #$0C CTRL L - CHAR RIGHT1455 FD52 10 27 00 2C LBEQ CHRIGHT1456 FD56 81 0B CMPA #$0B CTRL K - MOVE UP ONE LINE1457 FD58 10 27 00 11 LBEQ LINEUP1458 FD5C 81 0A CMPA #$0A CTRL J - LINE FEED1459 FD5E 26 51 BNE RETESC NONE OF THESE, RETURN1460 *1461 ***************************************** LINE FEED1462 *1463 FD60 FC DF FB LINEFD LDD COLADX GET CURRENT COLUMN AND ROW1464 FD63 5C INCB BUMP ROW1465 FD64 C1 19 CMPB #NUMLIN SCROLL TIME?1466 FD66 10 26 00 83 LBNE NEWCUR POSITION CURSOR IF NOT1467 FD6A 16 00 99 LBRA SCROLL ELSE SCROLL IT1468 *1469 ***************************************** LINE FEED1470 *1471 FD6D FC DF FB LINEUP LDD COLADX GET CURRENT COLUMN AND ROW1472 FD70 5D TSTB AT TOP OF SCREEN ?1473 FD71 10 27 00 3C LBEQ RETESC Yes, Ignore1474 FD75 5A DECB No, Decrement ROW1475 FD76 16 00 74 LBRA NEWCUR POSITION CURSOR1476 *1477 *********************************** BACK SPACE1478 *1479 FD79 B6 DF FB BACKSP LDA COLADX1480 FD7C 27 33 BEQ RETESC RETURN1481 FD7E 4A DECA1482 FD7F 16 00 68 LBRA POSCOL POSITION CURSOR1483 *1484 *********************************** CURSOR RIGHT1485 *1486 FD82 B6 DF FB CHRIGHT LDA COLADX1487 FD85 4C INCA1488 FD86 81 50 CMPA #LINLEN1489 FD88 10 27 00 25 LBEQ RETESC1490 FD8C 16 00 5B LBRA POSCOL1491 *1492 *********************************** CURSOR RIGHT1493 *1494 FD8F CC 00 00 HOME LDD #0 HOME - POSITION TOP OF SCREEN1495 FD92 16 00 58 LBRA NEWCUR1496 *1497 ***************************************************1498 * ESCAPE HANDLERS *1499 ***************************************************1500 *1501 FD95 F6 DF FE ESCAPE LDAB ESCFLG GET FLAG1502 FD98 C1 3D CMPB #'= SETTING CURSOR?1503 FD9A 27 16 BEQ ESCCUR BRANCH IF SO1504 FD9C 81 59 CMPA #'Y CLEAR TO END OF SCREEN?1505 FD9E 10 27 00 6E LBEQ ESCCLS1506 FDA2 81 54 CMPA #'T CLEAR TO END OF LINE?1507 FDA4 27 31 BEQ ESCCLL1508 FDA6 81 3D CMPA #'= STARTING CURSOR SET?1509 FDA8 26 04 BNE CLRESC BRANCH IF NOT1510 *1511 ***************************** START ESCAPE SEQUENCE1512 *1513 FDAA B7 DF FE SETESC STAA ESCFLG ELSE START CURSORING1514 FDAD 39 RTS AND RETURN1515 *1516 FDAE 7F DF FE CLRESC CLR ESCFLG NO OTHERS SUPPORTED1517 FDB1 39 RETESC RTS SO RETURN1518 *1519 ********************************* SET SCREEN CURSOR1520 *1521 FDB2 7D DF FD ESCCUR TST NEWROW ROW SET?1522 FDB5 26 04 BNE ESCCU1 BRANCH IF SO1523 FDB7 B7 DF FD STAA NEWROW ELSE SET NEW ROW1524 FDBA 39 RTS AND RETURN1525 *1526 FDBB 7F DF FE ESCCU1 CLR ESCFLG1527 FDBE 80 20 SUBA #$20 ADJUST COLUMN ADDRESS1528 FDC0 81 4F CMPA #LINLEN-1 CHECK FOR ACCEPTABLE COLUM1529 FDC2 22 ED BHI RETESC NOT OK, DO NOTHING1530 *1531 FDC4 F6 DF FD ESCCU2 LDAB NEWROW1532 FDC7 7F DF FD CLR NEWROW1533 FDCA C0 20 SUBB #$20 ADJUST TO ROW ADDRESS1534 FDCC C1 18 CMPB #NUMLIN-1 CHECK FOR ACCEPTABLE ROW1535 FDCE 22 E1 BHI RETESC ELSE RETURN DOING NOTHING1536 FDD0 20 1B BRA NEWCUR GO SET NEW CURSOR IF SO1537 *1538 ****************** CLEAR FROM CURSOR TO END OF LINE1539 FDD2 CC 00 00 CLRSCR LDD #0 CLEAR FROM TOP OF SCREEN1540 FDD5 8D 16 BSR NEWCUR1541 FDD7 B6 DF FB ESCCLL LDA COLADX1542 FDDA C6 20 LDB #$20 AND CLEAR CHAR1543 FDDC E7 84 ESCCL1 STB VDUCHR,X DISPLAY TEXT1544 FDDE 4C INCA1545 FDDF A7 02 STA VDUCOL,X1546 FDE1 81 50 CMPA #LINLEN UNTIL END OF LINE1547 FDE3 26 F7 BNE ESCCL11548 FDE5 7F DF FE CLR ESCFLG1549 FDE8 39 RTS1550 *1551 *********************************** CARRIAGE RETURN1552 *1553 FDE9 4F CRETN CLRA SET COLUMN ZERO1554 FDEA F6 DF FC POSCOL LDB ROWADX GET CURRENT ROW1555 *1556 *********** GENERATE NEW CURSOR POSITION AND RETURN1557 *1558 FDED FD DF FB NEWCUR STD COLADX SAVE NEW ROW AND COLUMN1559 FDF0 A7 02 STA VDUCOL,X SET NEW COLUMN1560 FDF2 E7 03 STB VDUROW,X SET NEW ROW1561 FDF4 39 RTS AND RETURN1562 *1563 ********************* UPDATE CURRENT COLUMN AND ROW1564 *1565 FDF5 FC DF FB NEWCOL LDD COLADX GET ROW AND COLUMN1566 FDF8 4C INCA BUMP COLUMN1567 FDF9 81 50 CMPA #LINLEN ROLL?1568 FDFB 26 F0 BNE NEWCUR BRANCH IF NOT1569 FDFD 4F CLRA ELSE RESET TO ZERO1570 FDFE 5C INCB AND BUMP ROW1571 FDFF C1 19 CMPB #NUMLIN1572 FE01 26 EA BNE NEWCUR1573 FE03 5A DECB BOTTOM ROW1574 FE04 8D E7 BSR NEWCUR1575 *1576 ********************************* SCROLL THE SCREEN1577 *1578 FE06 E6 04 SCROLL LDB VDUOFF,X1579 FE08 5C INCB1580 FE09 C1 19 CMPB #NUMLIN1581 FE0B 25 01 BLO SCROL11582 FE0D 5F CLRB1583 FE0E E7 04 SCROL1 STB VDUOFF,X1584 *1585 **************** CLEAR FROM CURSOR TO END OF SCREEN1586 *1587 FE10 F6 DF FB ESCCLS LDB COLADX GET CURSOR1588 FE13 86 20 LDA #$20 GET A SPACE1589 FE15 F7 DF FB ESCCLS1 STB COLADX1590 FE18 E7 02 STB VDUCOL,X1591 FE1A A7 84 STA VDUCHR,X1592 FE1C 5C INCB1593 FE1D C1 50 CMPB #LINLEN1594 FE1F 26 F4 BNE ESCCLS11595 *1596 FE21 F6 DF FC LDB ROWADX1597 FE24 5C INCB1598 FE25 C1 19 CMPB #NUMLIN1599 FE27 27 08 BEQ ESCCLS21600 FE29 F7 DF FC STB ROWADX1601 FE2C E7 03 STB VDUROW,X1602 FE2E 5F CLRB1603 FE2F 20 E4 BRA ESCCLS11604 *1605 FE31 5F ESCCLS2 CLRB1606 FE32 F7 DF FB STB COLADX1607 FE35 E7 02 STB VDUCOL,X1608 FE37 F7 DF FE STB ESCFLG1609 FE3A 39 RTS1610 ENDIF VDUOPT1611 *1612 IFD DG640OPT1613 ***************************************************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 ***************************************************16211622 ***************************************************1623 * INITIALIZE EMULATOR *1624 ***************************************************16251626 VINIZ LDX #01627 STX COLADX AND ROWADX1628 STX NEWROW AND ESCFLG1629 LDX #SCREEN POINT TO SCREEN1630 STX CURSOR SET PROGRAM CURSOR1631 LDA #$1B SEND ESCAPE1632 BSR VOUTCH1633 LDA #'Y CLEAR TO END OF SCREEN1634 *1635 ** VIDEO OUTPUT ROUTINE1636 *1637 VOUTCH PSHS A,B,X SAVE REGISTERS1638 *1639 ** CLEAR CURSOR1640 LDX CURSOR1641 LDB 0,X1642 ANDB #$7F1643 STB 0,X1644 *1645 ** CHECK FOR ESCAPE SEQUENCE1646 TST ESCFLG ESCAPE ACTIVE?1647 BEQ SOROU1 BRANCH IF NOT1648 BSR ESCAPE ELSE DO ESCAPE1649 BRA RETURN AND RETURN1650 *1651 ** CHECK FOR CONTROL CHARACTERS1652 SOROU1 CMPA #$20 CONTROL CODES?1653 BHS SOROU21654 BSR CONTRL BRANCH IF SO1655 BRA RETURN1656 *1657 ** OUTPUT TEXT CHARACTER1658 SOROU2 LDX CURSOR ELSE GET CURSOR1659 STAA 0,X DISPLAY CHARACTER1660 LBSR NEWCOL UPDATE COLUMN1661 *1662 ** DISPLAY CURSOR AND RETURN1663 RETURN LDX CURSOR AND DISPLAY IT1664 LDB ,X1665 ORAB #$80 WITH REVID1666 STB ,X1667 PULS A,B,X,PC RESTORE REGISTERS AND RETURN16681669 ***************************************************1670 * CONTROL CODE HANDLERS *1671 ***************************************************16721673 CONTRL CMPA #$08 CTRL H - BACKSPACE ?1674 LBEQ BACKSP1675 CMPA #$1B ESCAPE SEQUENCE?1676 LBEQ SETESC1677 CMPA #$D CTRL M - RETURN?1678 LBEQ CRETN1679 CMPA #$0A CTRL J - LINE FEED1680 BNE RETESC NONE OF THESE, RETURN16811682 ***************************************** LINE FEED16831684 LINEFD LDD COLADX GET CURRENT COLUMN AND ROW1685 INCB BUMP ROW1686 CMPB #NUMLIN SCROLL TIME?1687 LBNE NEWCUR POSITION CURSOR IF NOT1688 LBRA SCROLL ELSE SCROLL IT16891690 ***************************************** LINE FEED16911692 LINEUP LDD COLADX GET CURRENT COLUMN AND ROW1693 TSTB AT TOP OF SCREEN ?1694 BEQ RETESC Yes, Ignore1695 DECB No, Decrement ROW1696 LBRA NEWCUR POSITION CURSOR169716981699 *********************************** BACK SPACE17001701 BACKSP LDA COLADX1702 BEQ RETESC RETURN1703 DECA1704 LBRA POSCOL POSITION CURSOR17051706 *********************************** CURSOR RIGHT17071708 CHRIGHT LDA COLADX1709 INCA1710 CMPA #LINLEN1711 BEQ RETESC1712 LBRA POSCOL17131714 ***************************************************1715 * ESCAPE HANDLERS *1716 ***************************************************17171718 ESCAPE LDAB ESCFLG GET FLAG1719 CMPB #'= SETTING CURSOR?1720 BEQ ESCCUR BRANCH IF SO1721 CMPA #'Y CLEAR TO END OF SCREEN?1722 LBEQ ESCCLS1723 CMPA #'T CLEAR TO END OF LINE?1724 BEQ ESCCLL1725 CMPA #'E INSERT LINE?1726 BEQ ESCINL1727 CMPA #'R DELETE LINE?1728 BEQ ESCDLL1729 CMPA #'= STARTING CURSOR SET?1730 BNE CLRESC BRANCH IF NOT17311732 ***************************** START ESCAPE SEQUENCE17331734 SETESC STAA ESCFLG ELSE START CURSORING1735 RTS AND RETURN17361737 CLRESC CLR ESCFLG NO OTHERS SUPPORTED1738 RETESC RTS SO RETURN17391740 ********************************* SET SCREEN CURSOR17411742 ESCCUR TST NEWROW ROW SET?1743 BNE ESCCU1 BRANCH IF SO1744 STAA NEWROW ELSE SET NEW ROW1745 RTS AND RETURN17461747 ESCCU1 CLR ESCFLG1748 SUBA #$20 ADJUST COLUMN ADDRESS1749 CMPA #LINLEN-1 CHECK FOR ACCEPTABLE COLUM1750 BHI RETESC NOT OK, DO NOTHING17511752 ESCCU2 LDAB NEWROW1753 CLR NEWROW1754 SUBB #$20 ADJUST TO ROW ADDRESS1755 CMPB #NUMLIN-1 CHECK FOR ACCEPTABLE ROW1756 BHI RETESC ELSE RETURN DOING NOTHING1757 BRA NEWCUR GO SET NEW CURSOR IF SO1758 *1759 *************************** DELETE LINE FROM SCREEN17601761 ESCDLL BSR CRETN GO COL. ZERO1762 LDB ROWADX1763 CMPB #NUMLIN-11764 BEQ SCROL31765 BRA SCROL1 AND DELETE THIS LINE17661767 *************************** INSERT LINE INTO SCREEN17681769 ESCINL BSR CRETN GO TO COL. ZERO1770 LDAB ROWADX1771 CMPB #NUMLIN-11772 BEQ ESCCLL1773 *1774 ** SCROLL SCREEN DOWN FROM CURSOR1775 *1776 LDX #SCREEN+SCNLEN-LINLEN1777 ESCIN0 LDAA 0,-X1778 STAA LINLEN,X1779 LDA SCNLEN,X1780 STA SCNLEN+LINLEN,X1781 CPX CURSOR1782 BNE ESCIN017831784 ****************** CLEAR FROM CURSOR TO END OF LINE17851786 ESCCLL LDA COLADX GET CURRENT COLUMN1787 LDX CURSOR GET CURSOR1788 LDB #$20 AND CLEAR CHAR1789 ESCLL1 STB SCNLEN,X CLEAR ATTRIBUTE1790 STB ,X+ CLEAR TEXT1791 INCA1792 CMPA #LINLEN UNTIL END OF LINE1793 BNE ESCLL11794 CLR ESCFLG1795 RTS17961797 *********************************** CARRIAGE RETURN17981799 CRETN CLRA SET COLUMN ZERO1800 POSCOL LDB ROWADX GET CURRENT ROW18011802 *********** GENERATE NEW CURSOR POSITION AND RETURN18031804 NEWCUR STD COLADX SAVE NEW ROW AND COLUMN1805 LDA #LINLEN ELSE ADD A LINE1806 MUL LINLEN * ROWADX1807 ADDB COLADX1808 ADCA #01809 ADDD #SCREEN ADD SCREEN BASE.1810 STD CURSOR SAVE NEW CURSOR1811 TFR D,X GET CURSOR IN X1812 RTS AND RETURN18131814 ********************* UPDATE CURRENT COLUMN AND ROW18151816 NEWCOL LDD COLADX GET ROW AND COLUMN1817 INCA BUMP COLUMN1818 CMPA #LINLEN ROLL?1819 BNE NEWCUR BRANCH IF NOT1820 CLRA ELSE RESET TO ZERO1821 INCB AND BUMP ROW1822 CMPB #NUMLIN1823 BNE NEWCUR1824 DECB BOTTOM ROW1825 BSR NEWCUR18261827 ********************************* SCROLL THE SCREEN18281829 SCROLL LDX #SCREEN POINT TO SCREEN1830 SCROL1 LDA SCNLEN+LINLEN,X1831 STA SCNLEN,X1832 LDAA LINLEN,X MOVE TWO BYTES1833 STAA 0,X+ UP ONE LINE1834 CMPX #SCREEN+SCNLEN-LINLEN1835 BNE SCROL1 LOOP UNTIL DONE1836 BRA SCROL318371838 **************** CLEAR FROM CURSOR TO END OF SCREEN18391840 ESCCLS LDX CURSOR GET CURSOR1841 SCROL3 LDAA #$20 GET A SPACE1842 SCROL2 STA SCNLEN,X CLEAR ATTRIBUTES1843 STA ,X+ AND TEXT1844 CMPX #SCREEN+SCNLEN1845 BNE SCROL2 UNTIL DONE1846 CLR ESCFLG1847 RTS1848 ENDIF DG640OPT1848 ENDIF DG640OPT1849 *1850 IFD PRTOPT1851 *************************************1852 *1853 ** PRINTER DRIVER ROUTINES1854 *1855 *************************************1856 *1857 ** PINIZ - INITIATE PRINTER PORT1858 *1859 PINIZ PSHS B1860 LDD #DIRMSK*256+$04 ACCA=DIRMSK ACCB=$041861 STD PADATA SET DDR AND SELECT DATA1862 *1863 ** RESET PRINTER1864 LDB #PRESET1865 STAB PADATA1866 RESTLP INCB DELAY FOR RESET1867 BNE RESTLP1868 STAA PADATA ACCA=DIRMSK1869 *1870 ** INITALIZE PORT B (DATA PORT)1871 LDAA #$2A1872 STAA PBCTRL1873 LDD #$FF2E ACCA=$FF ACCB =%001011101874 STD PBDATA PBDREG PBCTRL1875 *1876 ** SELECT 66 LINES/PAGE1877 LDAA #$1B1878 BSR POUTCH1879 LDAA #'C1880 BSR POUTCH1881 LDAA #661882 PULS B1883 *************************************1884 *1885 ** OUTPUT A CHARACTER TO THE PRINTER1886 *1887 *************************************1888 POUTCH PSHS B1889 LDAB PBDATA CLEAR INTERRUPT BIT1890 *1891 ** WAIT TILL NOT BUSY1892 BUSYLP LDAB PADATA1893 BITB #PERROR1894 BEQ PEXIT1895 TSTB1896 BMI BUSYLP1897 *1898 ** NOW OUTPUT CHARACTER1899 STAA PBDATA1900 PEXIT PULS B,PC1901 *************************************1902 *1903 ** PCHK TEST IFD PRINTER READY1904 *1905 *************************************1906 PCHK TST PBCTRL TEST STATE OF CRB71907 RTS SET ON ACKNOWLEDGE1908 ENDIF PRTOPT1908 ENDIF PRTOPT1909 *************************************1910 *1911 * MONITOR KEYBOARD COMMAND JUMP TABLE1912 *1913 *************************************1914 *1915 FE3B JMPTAB EQU *1916 FE3B 01 FCB 1 " ^A "1917 FE3C FB 74 FDB ALTRA1918 FE3E 02 FCB 2 " ^B "1919 FE3F FB 69 FDB ALTRB1920 FE41 03 FCB 3 " ^C "1921 FE42 FB 7F FDB ALTRCC1922 FE44 04 FCB 4 " ^D "1923 FE45 FB 5E FDB ALTRDP1924 FE47 10 FCB $10 " ^P "1925 FE48 FB 31 FDB ALTRPC1926 FE4A 15 FCB $15 " ^U "1927 FE4B FB 3D FDB ALTRU1928 FE4D 18 FCB $18 " ^X "1929 FE4E FB 53 FDB ALTRX1930 FE50 19 FCB $19 " ^Y "1931 FE51 FB 48 FDB ALTRY1932 *1933 FE53 42 FCC 'B'1934 FE54 F9 5C FDB BRKPNT1935 FE56 45 FCC 'E'1936 FE57 F8 FD FDB MEMDUMP1937 FE59 47 FCC 'G'1938 FE5A F8 A5 FDB GO1939 FE5C 4C FCC 'L'1940 FE5D FA 5E FDB LOAD1941 FE5F 50 FCC 'P'1942 FE60 FA BC FDB PUNCH1943 FE62 4D FCC 'M'1944 FE63 F8 A8 FDB MEMCHG1945 FE65 52 FCC 'R'1946 FE66 FB ED FDB REGSTR1947 FE68 53 FCC 'S'1948 FE69 F8 F1 FDB DISSTK1949 FE6B 58 FCC 'X'1950 FE6C F9 88 FDB XBKPNT1951 IFD MFDCOPT1952 FCC 'D' *** SWTPC USES 'U' FOR MINIBOOT1953 FDB MINBOOT1954 ENDIF MFDCOPT1954 ENDIF MFDCOPT1955 IFD CF8OPT1956 FCC 'D' *** FPGA 8 BIT USES 'D' FOR CFBOOT1957 FDB CFBOOT1958 ENDIF CF8OPT1958 ENDIF CF8OPT1959 IFD IDEOPT1960 FE6E 44 FCC 'D' *** XESS FPGA 16 BIT IDE USES 'D' FOR IDEBOOT1961 FE6F F9 D5 FDB IDEBOOT1962 ENDIF IDEOPT1963 IFD DMAFOPT1964 FCC 'U' *** SWTPC USES 'D' FOR DMAF2 BOOT1965 FDB DBOOT1966 ENDIF DMAFOPT1966 ENDIF DMAFOPT1967 IFD EXTOPT1968 FE71 55 FCC 'U' *** IF FPGA, 'U' IS FOR USER1969 FE72 FC 92 FDB USRCMD1970 ENDIF EXTOPT1971 IFD RTCOPT1972 FCC 'T'1973 FDB TIMSET1974 ENDIF RTCOPT1974 ENDIF RTCOPT1975 IFD TRAOPT1976 FCC "T"1977 FDB TRACE1978 ENDIF TRAOPT1978 ENDIF TRAOPT1979 *1980 FE74 TABEND EQU *1981 *1982 * ** 6809 VECTOR ADDRESSES **1983 *1984 * FOLLOWING ARE THE ADDRESSES OF THE VECTOR ROUTINES1985 * FOR THE 6809 PROCESSOR. DURING INITIALIZATION THEY1986 * ARE RELOCATED TO RAM FROM $DFC0 TO $DFCF. THEY ARE1987 * RELOCATED TO RAM SO THAT THE USER MAY REVECTOR TO1988 * HIS OWN ROUTINES IF HE SO DESIRES.1989 *1990 *1991 FE74 F9 94 RAMVEC FDB SWIE USER-V1992 FE76 F8 A7 FDB RTI SWI3-V1993 FE78 F8 A7 FDB RTI SWI2-V1994 FE7A F8 A7 FDB RTI FIRQ-V1995 FE7C F8 A7 FDB RTI IRQ-V1996 FE7E F9 94 FDB SWIE SWI-V1997 FE80 FF FF FDB $FFFF SVC-VO1998 FE82 FF FF FDB $FFFF SVC-VL1999 *2000 * PRINTABLE MESSAGE STRINGS2001 *2002 FE84 0D 0A 00 00 00 MSG1 FCB $D,$A,$0,$0,$0 * 0, CR/LF, 02003 FE89 53 59 53 30 39 42 FCC 'SYS09BUG 1.4 FOR '55 47 20 31 2E 3420 46 4F 52 202004 IFD S3EOPT2005 FCC 'S3E '2006 ENDIF S3EOPT2006 ENDIF S3EOPT2007 IFD B5XOPT2008 FCC 'B5-X300 '2009 ENDIF B5XOPT2009 ENDIF B5XOPT2010 IFD S3SOPT2011 FCC 'S3STARTER '2012 ENDIF S3SOPT2012 ENDIF S3SOPT2013 IFD ADSOPT2014 FCC 'ADS6809 '2015 ENDIF ADSOPT2015 ENDIF ADSOPT2016 IFD SWTOPT`2017 FCC 'SWTPC '2018 ENDIF SWTOPT2018 ENDIF SWTOPT2019 IFD XESOPT`2020 FE9A 58 45 53 53 20 FCC 'XESS '2021 ENDIF XESOPT2022 FE9F 20 2D 20 FCC ' - '2023 FEA2 04 FCB 42024 FEA3 4B 0D 0A 00 00 00 MSG2 FCB 'K,$D,$A,$00,$00,$00,$04 K, * CR/LF + 3 NULS042025 FEAA 3E MSG3 FCC '>'2026 FEAB 04 FCB 42027 FEAC 57 48 41 54 3F MSG4 FCC 'WHAT?'2028 FEB1 04 FCB 42029 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 42033 FEBC 20 20 50 43 3D MSG11 FCC ' PC='2034 FEC1 04 FCB 42035 FEC2 20 20 55 53 3D MSG12 FCC ' US='2036 FEC7 04 FCB 42037 FEC8 20 20 49 59 3D MSG13 FCC ' IY='2038 FECD 04 FCB 42039 FECE 20 20 49 58 3D MSG14 FCC ' IX='2040 FED3 04 FCB 42041 FED4 20 20 44 50 3D MSG15 FCC ' DP='2042 FED9 04 FCB 42043 FEDA 20 20 41 3D MSG16 FCC ' A='2044 FEDE 04 FCB 42045 FEDF 20 20 42 3D MSG17 FCC ' B='2046 FEE3 04 FCB 42047 FEE4 20 20 43 43 3A 20 MSG18 FCC ' CC: '2048 FEEA 04 FCB 42049 FEEB 45 46 48 49 4E 5A MSG19 FCC 'EFHINZVC'56 432050 FEF3 53 31 MSG20 FCC 'S1'2051 FEF5 04 FCB 42052 IFD DATOPT2053 *2054 * POWER UP/ RESET/ NMI ENTRY POINT2055 *2056 FF00 ORG $FF002057 *2058 *2059 FF00 8E FF F0 START LDX #IC11 POINT TO DAT RAM IC112060 FF03 86 0F LDA #$F GET COMPLIMENT OF ZERO2061 *2062 *2063 * INITIALIZE DAT RAM --- LOADS $F-$0 IN LOCATIONS $0-$F2064 * OF DAT RAM, THUS STORING COMPLEMENT OF MSB OF ADDRESS2065 * IN THE DAT RAM. THE COMPLEMENT IS REQUIRED BECAUSE THE2066 * OUTPUT OF IC11, A 74S189, IS THE INVERSE OF THE DATA2067 * STORED IN IT.2068 *2069 *2070 FF05 A7 80 DATLP STA ,X+ STORE & POINT TO NEXT RAM LOCATION2071 FF07 4A DECA GET COMP. VALUE FOR NEXT LOCATION2072 FF08 26 FB BNE DATLP ALL 16 LOCATIONS INITIALIZED ?2073 *2074 * NOTE: IX NOW CONTAINS $0000, DAT RAM IS NO LONGER2075 * ADDRESSED, AND LOGICAL ADDRESSES NOW EQUAL2076 * PHYSICAL ADDRESSES.2077 *2078 FF0A 86 F0 LDA #$F02079 FF0C A7 84 STA ,X STORE $F0 AT $FFFF2080 FF0E 8E D0 A0 LDX #$D0A0 ASSUME RAM TO BE AT $D000-$DFFF2081 FF11 10 8E 55 AA LDY #TSTPAT LOAD TEST DATA PATTERN INTO "Y"2082 FF15 EE 84 TSTRAM LDU ,X SAVE DATA FROM TEST LOCATION2083 FF17 10 AF 84 STY ,X STORE TEST PATTERN AT $D0A02084 FF1A 10 AC 84 CMPY ,X IS THERE RAM AT THIS LOCATION ?2085 FF1D 27 0B BEQ CNVADR IF MATCH THERE'S RAM, SO SKIP2086 FF1F 30 89 F0 00 LEAX -$1000,X ELSE POINT 4K LOWER2087 FF23 8C F0 A0 CMPX #$F0A0 DECREMENTED PAST ZER0 YET ?2088 FF26 26 ED BNE TSTRAM IF NOT CONTINUE TESTING FOR RAM2089 FF28 20 D6 BRA START ELSE START ALL OVER AGAIN2090 *2091 *2092 * THE FOLLOWING CODE STORES THE COMPLEMENT OF2093 * THE MS CHARACTER OF THE FOUR CHARACTER HEX2094 * ADDRESS OF THE FIRST 4K BLOCK OF RAM LOCATED2095 * BY THE ROUTINE "TSTRAM" INTO THE DAT RAM. IT2096 * IS STORED IN RAM IN THE LOCATION THAT IS2097 * ADDRESSED WHEN THE PROCESSOR ADDRESS IS $D---,2098 * THUS IF THE FIRST 4K BLOCK OF RAM IS FOUND2099 * WHEN TESTING LOCATION $70A0, MEANING THERE2100 * IS NO RAM PHYSICALLY ADDRESSED IN THE RANGE2101 * $8000-$DFFF, THEN THE COMPLEMENT OF THE2102 * "7" IN THE $70A0 WILL BE STORED IN2103 * THE DAT RAM. THUS WHEN THE PROCESSOR OUTPUTS2104 * AN ADDRESS OF $D---, THE DAT RAM WILL RESPOND2105 * BY RECOMPLEMENTING THE "7" AND OUTPUTTING THE2106 * 7 ONTO THE A12-A15 ADDRESS LINES. THUS THE2107 * RAM THAT IS PHYSICALLY ADDRESSED AT $7---2108 * WILL RESPOND AND APPEAR TO THE 6809 THAT IT2109 * IS AT $D--- SINCE THAT IS THE ADDRESS THE2110 * 6809 WILL BE OUTPUTING WHEN THAT 4K BLOCK2111 * OF RAM RESPONDS.2112 *2113 *2114 FF2A EF 84 CNVADR STU ,X RESTORE DATA AT TEST LOCATION2115 FF2C 1F 10 TFR X,D PUT ADDR. OF PRESENT 4K BLOCK IN D2116 FF2E 43 COMA COMPLEMENT MSB OF THAT ADDRESS2117 FF2F 44 LSRA PUT MS 4 BITS OF ADDRESS IN2118 FF30 44 LSRA LOCATION D0-D3 TO ALLOW STORING2119 FF31 44 LSRA IT IN THE DYNAMIC ADDRESS2120 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 POINTER2124 *2125 *2126 * THE FOLLOWING CHECKS TO FIND THE REAL PHYSICAL ADDRESSES2127 * OF ALL 4K BLKS OF RAM IN THE SYSTEM. WHEN EACH 4K BLK2128 * OF RAM IS LOCATED, THE COMPLEMENT OF IT'S REAL ADDRESS2129 * IS THEN STORED IN A "LOGICAL" TO "REAL" ADDRESS XLATION2130 * TABLE THAT IS BUILT FROM $DFD0 TO $DFDF. FOR EXAMPLE IF2131 * THE SYSTEM HAS RAM THAT IS PHYSICALLY LOCATED (WIRED TO2132 * 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 F2135 * 4K 4K 4K 4K 4K 4K 4K 4K -- 4K 4K 4K 4K -- -- --2136 *2137 * ....FOR A TOTAL OF 48K OF RAM, THEN THE TRANSLATION TABLE2138 * 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 F2141 * 0F 0E 0D 0C 0B 0A 09 08 06 05 00 00 04 03 F1 F02142 *2143 *2144 * HERE WE SEE THE LOGICAL ADDRESSES OF MEMORY FROM $0000-$7FFF2145 * HAVE NOT BEEN SELECTED FOR RELOCATION SO THAT THEIR PHYSICAL2146 * ADDRESS WILL = THEIR LOGICAL ADDRESS; HOWEVER, THE 4K BLOCK2147 * PHYSICALLY AT $9000 WILL HAVE ITS ADDRESS TRANSLATED SO THAT2148 * IT WILL LOGICALLY RESPOND AT $8000. LIKEWISE $A,$B, AND $C0002149 * WILL BE TRANSLATED TO RESPOND TO $9000,$C000, AND $D0002150 * RESPECTIVELY. THE USER SYSTEM WILL LOGICALLY APPEAR TO HAVE2151 * MEMORY ADDRESSED AS FOLLOWS....2152 *2153 * 0 1 2 3 4 5 6 7 8 9 A B C D E F2154 * 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. TABLE2158 FF3E A7 2D STA 13,Y STORE $D--- XLATION FACTOR AT $DFDD2159 FF40 6F 2E CLR 14,Y CLEAR $DFDE2160 FF42 86 F0 LDA #$F0 DESTINED FOR IC8 AN MEM EXPANSION ?2161 FF44 A7 2F STA 15,Y STORE AT $DFDF2162 FF46 86 0C LDA #$0C PRESET NUMBER OF BYTES TO CLEAR2163 FF48 6F A6 CLRLRT CLR A,Y CLEAR $DFDC THRU $DFD02164 FF4A 4A DECA SUB. 1 FROM BYTES LEFT TO CLEAR2165 FF4B 2A FB BPL CLRLRT CONTINUE IF NOT DONE CLEARING2166 FF4D 30 89 F0 00 FNDRAM LEAX -$1000,X POINT TO NEXT LOWER 4K OF RAM2167 FF51 8C F0 A0 CMPX #$F0A0 TEST FOR DECREMENT PAST ZERO2168 FF54 27 22 BEQ FINTAB SKIP IF FINISHED2169 FF56 EE 84 LDU ,X SAVE DATA AT CURRENT TEST LOCATION2170 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 LOCATION2173 FF62 26 E9 BNE FNDRAM IF NO RAM GO LOOK 4K LOWER2174 FF64 EF 84 STU ,X ELSE RESTORE DATA TO TEST LOCATION2175 FF66 10 8E DF D0 LDY #LRARAM POINT TO LOGICAL/REAL ADDR. TABLE2176 FF6A 1F 10 TFR X,D PUT ADDR. OF PRESENT 4K BLOCK IN D2177 FF6C 44 LSRA PUT MS 4 BITS OF ADDR. IN LOC. D0-D32178 FF6D 44 LSRA TO ALLOW STORING IT IN THE DAT RAM.2179 FF6E 44 LSRA2180 FF6F 44 LSRA2181 FF70 1F 89 TFR A,B SAVE OFFSET INTO LRARAM TABLE2182 FF72 88 0F EORA #$0F INVERT MSB OF ADDR. OF CURRENT 4K BLK2183 FF74 A7 A5 STA B,Y SAVE TRANSLATION FACTOR IN LRARAM TABLE2184 FF76 20 D5 BRA FNDRAM GO TRANSLATE ADDR. OF NEXT 4K BLK2185 FF78 86 F1 FINTAB LDA #$F1 DESTINED FOR IC8 AND MEM EXPANSION ?2186 FF7A 10 8E DF D0 LDY #LRARAM POINT TO LRARAM TABLE2187 FF7E A7 2E STA 14,Y STORE $F1 AT $DFCE2188 *2189 * THE FOLLOWING CHECKS TO SEE IF THERE IS A 4K BLK OF2190 * RAM LOCATED AT $C000-$CFFF. IF NONE THERE IT LOCATES2191 * THE NEXT LOWER 4K BLK AN XLATES ITS ADDR SO IT2192 * 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 TABLE2197 FF84 26 05 BNE FOUNDC BRANCH IF RAM THIS PHYSICAL ADDR.2198 FF86 4A DECA ELSE POINT 4K LOWER2199 FF87 2A F9 BPL FINDC GO TRY AGAIN2200 FF89 20 14 BRA XFERTF2201 FF8B 6F A6 FOUNDC CLR A,Y CLR XLATION FACTOR OF 4K BLOCK FOUND2202 FF8D E7 2C STB $C,Y GIVE IT XLATION FACTOR MOVING IT TO $C---2203 *2204 * THE FOLLOWING CODE ADJUSTS THE TRANSLATION2205 * FACTORS SUCH THAT ALL REMAINING RAM WILL2206 * RESPOND TO A CONTIGUOUS BLOCK OF LOGICAL2207 * ADDRESSES FROM $0000 AND UP....2208 *2209 FF8F 4F CLRA START AT ZERO2210 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" TABLE2212 FF94 27 04 BEQ PNTNXT IF IT'S ZER0 SKIP2213 FF96 6F A6 CLR A,Y ELSE ERASE FROM TABLE2214 FF98 E7 80 STB ,X+ AND ENTER ABOVE LAST ENTRY- BUMP2215 FF9A 4C PNTNXT INCA GET OFFSET TO NEXT ENTRY2216 FF9B 81 0C CMPA #$0C LAST ENTRY YET ?2217 FF9D 2D F3 BLT COMPRS2218 *2219 * THE FOLLOWING CODE TRANSFER THE TRANSLATION2220 * FACTORS FROM THE LRARAM TABLE TO IC11 ON2221 * THE MP-09 CPU CARD.2222 *2223 FF9F 8E FF F0 XFERTF LDX #IC11 POINT TO DAT RAM IC112224 FFA2 C6 10 LDB #$10 GET NO. OF BYTES TO MOVE2225 FFA4 A6 A0 FETCH LDA ,Y+ GET BYTE AND POINT TO NEXT2226 FFA6 A7 80 STA ,X+ POKE XLATION FACTOR IN IC112227 FFA8 5A DECB SUB 1 FROM BYTES TO MOVE2228 FFA9 26 F9 BNE FETCH CONTINUE UNTIL 16 MOVED2229 *2230 ELSE2231 LRA RTS2232 START LDS #STACK INITIALIZE STACK POINTER2233 CLRB2234 ENDIF DATOPT2234 ENDIF DATOPT2235 *2236 FFAB 53 COMB SET "B" NON-ZERO2237 FFAC F7 DF E2 STB ECHO TURN ON ECHO FLAG2238 FFAF 16 F8 62 LBRA MONITOR INITIALIZATION IS COMPLETE2239 *2240 ** INTERRUPT JUMP VECTORS2241 *2242 FFB2 6E 9F DF C0 V1 JMP [STACK]2243 FFB6 6E 9F DF C4 V2 JMP [SWI2]2244 FFBA 6E 9F DF C6 V3 JMP [FIRQ]2245 FFBE 6E 9F DF C8 V4 JMP [IRQ]2246 FFC2 6E 9F DF CA V5 JMP [SWI]2247 *2248 * SWI3 ENTRY POINT2249 *2250 FFC6 1F 43 SWI3E TFR S,U2251 FFC8 AE 4A LDX 10,U *$FFC82252 FFCA E6 80 LDB ,X+2253 FFCC AF 4A STX 10,U2254 FFCE 4F CLRA2255 FFCF 58 ASLB2256 FFD0 49 ROLA2257 FFD1 BE DF CC LDX SVCVO2258 FFD4 8C FF FF CMPX #$FFFF2259 FFD7 27 0F BEQ SWI3Z2260 FFD9 30 8B LEAX D,X2261 FFDB BC DF CE CMPX SVCVL2262 FFDE 22 08 BHI SWI3Z2263 FFE0 34 10 PSHS X2264 FFE2 EC C4 LDD ,U2265 FFE4 AE 44 LDX 4,U2266 FFE6 6E F1 JMP [,S++]2267 FFE8 37 1F SWI3Z PULU A,B,X,CC,DP2268 FFEA EE 42 LDU 2,U2269 FFEC 6E 9F DF C2 JMP [SWI3]2270 *2271 * 6809 VECTORS2272 *2273 FFF0 ORG $FFF02274 FFF0 FF B2 FDB V1 USER-V2275 FFF2 FF C6 FDB SWI3E SWI3-V2276 FFF4 FF B6 FDB V2 SWI2-V2277 FFF6 FF BA FDB V3 FIRQ-V2278 FFF8 FF BE FDB V4 IRQ-V2279 FFFA FF C2 FDB V5 SWI-V2280 FFFC FF B2 FDB V1 NMI-V2281 FFFE FF 00 FDB START RESTART-V0005 END START0006 ENDProgram + Init Data = 3583 bytesError count = 0