| Line 1... |
Line 1... |
|
; ============================================================================
|
|
; (C) 2012 Robert Finch
|
|
; All Rights Reserved.
|
|
; robfinch@opencores.org
|
|
;
|
|
; This source file is free software: you can redistribute it and/or modify
|
|
; it under the terms of the GNU Lesser General Public License as published
|
|
; by the Free Software Foundation, either version 3 of the License, or
|
|
; (at your option) any later version.
|
|
;
|
|
; This source file is distributed in the hope that it will be useful,
|
|
; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
; GNU General Public License for more details.
|
|
;
|
|
; You should have received a copy of the GNU General Public License
|
|
; along with this program. If not, see .
|
|
;
|
|
; ============================================================================
|
|
;
|
|
CR EQU 0x0D ;ASCII equates
|
|
LF EQU 0x0A
|
|
TAB EQU 0x09
|
|
CTRLC EQU 0x03
|
|
CTRLH EQU 0x08
|
|
CTRLS EQU 0x13
|
|
CTRLX EQU 0x18
|
|
|
|
STACKTOP EQU 0xFFFF_FFFF_FFFE_FFF8
|
|
Milliseconds EQU 0x400
|
|
Lastloc EQU 0x408
|
|
ScreenColor EQU 0x414
|
|
CursorRow EQU 0x416
|
|
CursorCol EQU 0x418
|
|
KeybdEcho EQU 0x41A
|
|
KeybdBuffer EQU 0x440
|
|
KeybdHead EQU 0x450
|
|
KeybdTail EQU 0x451
|
|
TEXTSCR EQU 0xFFFF_FFFF_FFD0_0000
|
|
COLORSCR EQU 0xFFFF_FFFF_FFD1_0000
|
|
TEXTREG EQU 0xFFFFFFFF_FFDA0000
|
|
TEXT_COLS EQU 0x0
|
|
TEXT_ROWS EQU 0x2
|
|
TEXT_CURPOS EQU 0x16
|
|
KEYBD EQU 0xFFFF_FFFF_FFDC_0000
|
|
KEYBDCLR EQU 0xFFFF_FFFF_FFDC_0002
|
|
UART EQU 0xFFFF_FFFF_FFDC_0A00
|
|
UART_LS EQU 0xFFFF_FFFF_FFDC_0A01
|
|
PIC EQU 0xFFFF_FFFF_FFDC_0FF0
|
|
PSG EQU 0xFFFF_FFFF_FFD5_0000
|
|
AC97 EQU 0xFFFF_FFFF_FFDC_1000
|
|
BOOT_STACK EQU 0xFFFF_FFFF_FFFE_FFF8
|
|
BITMAPSCR EQU 0x00000001_00200000
|
|
|
|
txempty EQU 0x40
|
|
rxfull EQU 0x01
|
|
|
|
; org 0x070
|
|
; iret
|
|
; nop
|
|
; nop
|
|
; nop
|
|
; nop
|
|
; nop
|
|
; nop
|
|
; nop
|
|
;
|
|
0000000000000000.0 code
|
|
FFFFFFFFFFFFE800.0 org 0xFFFF_FFFF_FFFF_E800
|
|
|
|
; jump table
|
|
;
|
|
FFFFFFFFFFFFE800.0 0CFFFFFFA54 jmp SerialGetChar
|
|
FFFFFFFFFFFFE800.1 0CFFFFFFA60 jmp SerialPutChar
|
|
FFFFFFFFFFFFE800.2 0CFFFFFFA90 jmp SetKeyboardEcho
|
|
FFFFFFFFFFFFE810.0 0CFFFFFFAA6 jmp KeybdCheckForKey
|
|
FFFFFFFFFFFFE810.1 0CFFFFFFA92 jmp KeybdGetChar
|
|
FFFFFFFFFFFFE810.2 0CFFFFFFB65 jmp DisplayChar
|
|
FFFFFFFFFFFFE820.0 0CFFFFFFBF5 jmp DisplayString
|
|
|
|
FFFFFFFFFFFFE820.1 start:
|
|
; lea MSGRAM,a1
|
|
; jsr DisplayString
|
|
|
|
FFFFFFFFFFFFE820.1 ColdStart:
|
|
FFFFFFFFFFFFE820.1 0000000000A icache_on ; turn on the ICache
|
|
FFFFFFFFFFFFE820.2 0000000000C dcache_on ; turn on the DCache
|
|
FFFFFFFFFFFFE830.0 0BEFFFEFFF8 setlo sp,#STACKTOP ; top of stack
|
|
FFFFFFFFFFFFE830.1 0C7FFFFFA6E call KeybdInit
|
|
FFFFFFFFFFFFE830.2 0C7FFFFFA50 call PICInit
|
|
FFFFFFFFFFFFE840.0 00000000040 cli ; enable interrupts
|
|
FFFFFFFFFFFFE840.1 0A3000000CE setlo r3,#0xCE ; blue on blue
|
|
FFFFFFFFFFFFE840.2 18806000414 sc r3,ScreenColor
|
|
FFFFFFFFFFFFE850.0 10806000414 lc r3,0x414
|
|
FFFFFFFFFFFFE850.1 0A300000020 setlo r3,#32
|
|
FFFFFFFFFFFFE850.2 18806000416 sc r3,0x416 ; we do a store, then a load through the dcache
|
|
FFFFFFFFFFFFE860.0 10804000416 lc r2,0x416 ;
|
|
FFFFFFFFFFFFE860.1 10804000416 lc r2,0x416 ;
|
|
FFFFFFFFFFFFE860.2 2F8860000A8 beq r2,r3,dcokay
|
|
FFFFFFFFFFFFE870.0 0000000000D dcache_off ; data cache failed
|
|
FFFFFFFFFFFFE870.1 dcokay:
|
|
FFFFFFFFFFFFE870.1 10806000414 lc r3,ScreenColor
|
|
FFFFFFFFFFFFE870.2 0C7FFFFFB06 call ClearScreen
|
|
FFFFFFFFFFFFE880.0 0C7FFFFFAF4 call ClearBmpScreen
|
|
FFFFFFFFFFFFE880.1 18800000416 sc r0,CursorRow
|
|
FFFFFFFFFFFFE880.2 18800000418 sc r0,CursorCol
|
|
FFFFFFFFFFFFE890.0 0A1FFFFE920 setlo r1,#
|
|
FFFFFFFFFFFFE890.1 0E1FFFFFFFF sethi r1,#>MSGSTART
|
|
FFFFFFFFFFFFE890.2 0C7FFFFFBF5 call DisplayString
|
|
; call SetupAC97 ; and Beep
|
|
|
|
; Allow some other contexts to start up
|
|
; equal processing time for sixteen contexts
|
|
;
|
|
FFFFFFFFFFFFE8A0.0 00802000AA8 mfspr r1,AXC ; which context am I
|
|
FFFFFFFFFFFFE8A0.1 2F840000149 bne r1,r0,j4
|
|
FFFFFFFFFFFFE8A0.2 0A176543210 setlo r1,#0x76543210
|
|
FFFFFFFFFFFFE8B0.0 008400008A9 mtspr EP0,r1
|
|
FFFFFFFFFFFFE8B0.1 008400009A9 mtspr EP2,r1
|
|
FFFFFFFFFFFFE8B0.2 0A1FEDCBA98 setlo r1,#0xFEDCBA98
|
|
FFFFFFFFFFFFE8C0.0 00840000929 mtspr EP1,r1
|
|
FFFFFFFFFFFFE8C0.1 00840000A29 mtspr EP3,r1
|
|
FFFFFFFFFFFFE8C0.2 j4:
|
|
FFFFFFFFFFFFE8C0.2 0CFFFFFFCA6 jmp Monitor
|
|
FFFFFFFFFFFFE8D0.0 2F801FFFFCA bra j4
|
|
|
|
; call ramtest
|
|
|
|
;-----------------------------------------
|
|
; Hello World!
|
|
;-----------------------------------------
|
|
FFFFFFFFFFFFE8D0.1 HelloWorld:
|
|
FFFFFFFFFFFFE8D0.1 03FBC000018 subui r30,r30,#24
|
|
FFFFFFFFFFFFE8D0.2 27F40000003 sm [r30],r1/r2/r31
|
|
FFFFFFFFFFFFE8E0.0 0A2FFFFE910 setlo r2,#MSG
|
|
FFFFFFFFFFFFE8E0.1 j3:
|
|
FFFFFFFFFFFFE8E0.1 10082000000 lb r1,[r2]
|
|
FFFFFFFFFFFFE8E0.2 2F840000108 beq r1,r0,j2
|
|
FFFFFFFFFFFFE8F0.0 0C7FFFFFA60 call SerialPutChar
|
|
FFFFFFFFFFFFE8F0.1 02884000001 addui r2,r2,#1
|
|
FFFFFFFFFFFFE8F0.2 2F801FFFFAA bra j3
|
|
FFFFFFFFFFFFE900.0 j2:
|
|
FFFFFFFFFFFFE900.0 27740000003 lm [r30],r1/r2/r31
|
|
FFFFFFFFFFFFE900.1 0DFBE000018 ret #24
|
|
|
|
|
|
FFFFFFFFFFFFE900.2 37800000000 align 16
|
|
FFFFFFFFFFFFE910.0 align 16
|
|
FFFFFFFFFFFFE910.0 MSG:
|
|
FFFFFFFFFFFFE910 6F57206F6C6C6548 DB "Hello World!",0,0,0,0
|
|
FFFFFFFFFFFFE918 0000000021646C72
|
|
FFFFFFFFFFFFE920.0 align 16
|
|
FFFFFFFFFFFFE920.0 MSGSTART:
|
|
FFFFFFFFFFFFE920 3436726F74706152 db "Raptor64 system starting....",CR,LF,0,0
|
|
FFFFFFFFFFFFE928 206D657473797320
|
|
FFFFFFFFFFFFE930 676E697472617473
|
|
FFFFFFFFFFFFE938 00000A0D2E2E2E2E
|
|
|
|
FFFFFFFFFFFFE940.0 align 16
|
|
|
|
;----------------------------------------------------------
|
|
; Initialize programmable interrupt controller (PIC)
|
|
; 0 = nmi
|
|
; 1 = keyboard reset
|
|
; 2 = 1000Hz pulse (cursor flash)
|
|
; 15 = keyboard char
|
|
;----------------------------------------------------------
|
|
FFFFFFFFFFFFE940.0 PICInit:
|
|
FFFFFFFFFFFFE940.0 0A1FFFF8007 setlo r1,#0x8007 ; enable nmi,kbd_rst,and kbd_irq
|
|
FFFFFFFFFFFFE940.1 24803DC0FF2 outc r1,PIC+2
|
|
FFFFFFFFFFFFE940.2 0DFBE000000 ret
|
|
|
|
;-----------------------------------------
|
|
; Get character from serial port
|
|
;-----------------------------------------
|
|
FFFFFFFFFFFFE950.0 SerialGetChar:
|
|
FFFFFFFFFFFFE950.0 03FBC000008 subui r30,r30,#8
|
|
FFFFFFFFFFFFE950.1 19F86000000 sw r3,[r30]
|
|
FFFFFFFFFFFFE950.2 0A1FFDC0A00 setlo r1,#UART
|
|
FFFFFFFFFFFFE960.0 sgc1:
|
|
FFFFFFFFFFFFE960.0 20046000001 inb r3,1[r1] ; uart status
|
|
FFFFFFFFFFFFE960.1 050C6000001 andi r3,r3,#rxfull ; is there a char available ?
|
|
FFFFFFFFFFFFE960.2 2F8C0000008 beq r3,r0,sgc1
|
|
FFFFFFFFFFFFE970.0 11F86000000 lw r3,[r30]
|
|
FFFFFFFFFFFFE970.1 20042000000 inb r1,[r1]
|
|
FFFFFFFFFFFFE970.2 0DFBE000008 ret #8
|
|
|
|
;-----------------------------------------
|
|
; Put character to serial port
|
|
;-----------------------------------------
|
|
FFFFFFFFFFFFE980.0 SerialPutChar:
|
|
FFFFFFFFFFFFE980.0 03FBC000010 subui r30,r30,#16
|
|
FFFFFFFFFFFFE980.1 19F84000008 sw r2,8[r30]
|
|
FFFFFFFFFFFFE980.2 19F86000000 sw r3,[r30]
|
|
FFFFFFFFFFFFE990.0 0A3FFDC0A00 setlo r3,#UART
|
|
FFFFFFFFFFFFE990.1 spc1:
|
|
FFFFFFFFFFFFE990.1 200C4000001 inb r2,1[r3] ; uart status
|
|
FFFFFFFFFFFFE990.2 05084000040 andi r2,r2,#txempty ; is there a char available ?
|
|
FFFFFFFFFFFFE9A0.0 2F881FFFFA8 beq r2,r0,spc1
|
|
FFFFFFFFFFFFE9A0.1 240C2000000 outb r1,[r3]
|
|
FFFFFFFFFFFFE9A0.2 11F86000000 lw r3,[r30]
|
|
FFFFFFFFFFFFE9B0.0 11F84000008 lw r2,8[r30]
|
|
FFFFFFFFFFFFE9B0.1 0DFBE000010 ret #16
|
|
|
|
;==============================================================================
|
|
; Keyboard
|
|
;==============================================================================
|
|
;------------------------------------------------------------------------------
|
|
; Initialize keyboard
|
|
;------------------------------------------------------------------------------
|
|
FFFFFFFFFFFFE9B0.2 KeybdInit:
|
|
FFFFFFFFFFFFE9B0.2 18000000450 sb r0,KeybdHead
|
|
FFFFFFFFFFFFE9C0.0 18000000451 sb r0,KeybdTail
|
|
FFFFFFFFFFFFE9C0.1 0A100000001 setlo r1,#1 ; turn on keyboard echo
|
|
FFFFFFFFFFFFE9C0.2 1800200041A sb r1,KeybdEcho
|
|
FFFFFFFFFFFFE9D0.0 0DFBE000000 ret
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Normal keyboard interrupt, the lowest priority interrupt in the system.
|
|
; Grab the character from the keyboard device and store it in a buffer.
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFE9D0.1 KeybdIRQ:
|
|
FFFFFFFFFFFFE9D0.1 03FBC000018 subui sp,sp,#24
|
|
FFFFFFFFFFFFE9D0.2 27F00000007 sm [sp],r1/r2/r3
|
|
FFFFFFFFFFFFE9E0.0 12802000450 lbu r1,KeybdHead
|
|
FFFFFFFFFFFFE9E0.1 0504200000F andi r1,r1,#0x0f ; r1 = index into buffer
|
|
FFFFFFFFFFFFE9E0.2 0A300000440 setlo r3,#
|
|
FFFFFFFFFFFFE9F0.0 0E300000000 sethi r3,#>KeybdBuffer
|
|
FFFFFFFFFFFFE9F0.1 KeybdIRQa:
|
|
FFFFFFFFFFFFE9F0.1 20805DC0000 inch r2,KEYBD ; get keyboard character
|
|
FFFFFFFFFFFFE9F0.2 24801DC0002 outc r0,KEYBD+2 ; clear keyboard strobe (turns off the IRQ)
|
|
FFFFFFFFFFFFEA00.0 1A8C2200010 sb r2,[r3+r1] ; store character in buffer
|
|
FFFFFFFFFFFFEA00.1 02842000001 addui r1,r1,#1 ; increment head index
|
|
FFFFFFFFFFFFEA00.2 0504200000F andi r1,r1,#0x0f
|
|
FFFFFFFFFFFFEA10.0 18002000450 sb r1,KeybdHead
|
|
FFFFFFFFFFFFEA10.1 KeybdIRQb:
|
|
FFFFFFFFFFFFEA10.1 12804000451 lbu r2,KeybdTail ; check to see if we've collided
|
|
FFFFFFFFFFFFEA10.2 2F844000109 bne r1,r2,KeybdIRQc ; with the tail
|
|
FFFFFFFFFFFFEA20.0 02884000001 addui r2,r2,#1 ; if so, increment the tail index
|
|
FFFFFFFFFFFFEA20.1 0508400000F andi r2,r2,#0x0f ; the oldest character will be lost
|
|
FFFFFFFFFFFFEA20.2 18004000451 sb r2,KeybdTail
|
|
FFFFFFFFFFFFEA30.0 KeybdIRQc:
|
|
FFFFFFFFFFFFEA30.0 27700000007 lm [sp],r1/r2/r3
|
|
FFFFFFFFFFFFEA30.1 02FBC000018 addui sp,sp,#24
|
|
FFFFFFFFFFFFEA30.2 0DFBE000000 ret
|
|
|
|
;------------------------------------------------------------------------------
|
|
; r1 0=echo off, non-zero = echo on
|
|
;------------------------------------------------------------------------------
|
|
FFFFFFFFFFFFEA40.0 SetKeyboardEcho:
|
|
FFFFFFFFFFFFEA40.0 1800200041A sb r1,KeybdEcho
|
|
FFFFFFFFFFFFEA40.1 0DFBE000000 ret
|
|
|
|
;-----------------------------------------
|
|
; Get character from keyboard buffer
|
|
;-----------------------------------------
|
|
FFFFFFFFFFFFEA40.2 KeybdGetChar:
|
|
FFFFFFFFFFFFEA40.2 03FBC000010 subui sp,sp,#16
|
|
FFFFFFFFFFFFEA50.0 27F00000006 sm [sp],r2/r3
|
|
FFFFFFFFFFFFEA50.1 12804000451 lbu r2,KeybdTail
|
|
FFFFFFFFFFFFEA50.2 12802000450 lbu r1,KeybdHead
|
|
FFFFFFFFFFFFEA60.0 2F844000148 beq r1,r2,nochar
|
|
FFFFFFFFFFFFEA60.1 0A300000440 setlo r3,#KeybdBuffer
|
|
FFFFFFFFFFFFEA60.2 1A8C4100005 lbu r1,[r3+r2]
|
|
FFFFFFFFFFFFEA70.0 02884000001 addui r2,r2,#1
|
|
FFFFFFFFFFFFEA70.1 0508400000F andi r2,r2,#0x0f
|
|
FFFFFFFFFFFFEA70.2 18004000451 sb r2,KeybdTail
|
|
FFFFFFFFFFFFEA80.0 27700000006 lm [sp],r2/r3
|
|
FFFFFFFFFFFFEA80.1 0DFBE000010 ret #16
|
|
FFFFFFFFFFFFEA80.2 nochar:
|
|
FFFFFFFFFFFFEA80.2 0A1FFFFFFFF setlo r1,#-1
|
|
FFFFFFFFFFFFEA90.0 27700000006 lm [sp],r2/r3
|
|
FFFFFFFFFFFFEA90.1 0DFBE000010 ret #16
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Check if there is a keyboard character available in the keyboard buffer.
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFEA90.2 KeybdCheckForKey:
|
|
FFFFFFFFFFFFEA90.2 12802000451 lbu r1,KeybdTail
|
|
FFFFFFFFFFFFEAA0.0 12804000450 lbu r2,KeybdHead
|
|
FFFFFFFFFFFFEAA0.1 2F8440000A8 beq r1,r2,kck1
|
|
FFFFFFFFFFFFEAA0.2 0A100000001 setlo r1,#1
|
|
FFFFFFFFFFFFEAB0.0 0DFBE000000 ret
|
|
FFFFFFFFFFFFEAB0.1 kck1:
|
|
FFFFFFFFFFFFEAB0.1 0104210000A xor r1,r1,r1 ; return zero
|
|
FFFFFFFFFFFFEAB0.2 0DFBE000000 ret
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Check if there is a keyboard character available. If so return true (1)
|
|
; otherwise return false (0) in r1.
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFEAC0.0 KeybdCheckForKeyDirect:
|
|
FFFFFFFFFFFFEAC0.0 20803DC0000 inch r1,KEYBD
|
|
FFFFFFFFFFFFEAC0.1 2F8400000A1 bge r1,r0,cfkd1
|
|
FFFFFFFFFFFFEAC0.2 0A100000001 setlo r1,#1
|
|
FFFFFFFFFFFFEAD0.0 0DFBE000000 ret
|
|
FFFFFFFFFFFFEAD0.1 cfkd1:
|
|
FFFFFFFFFFFFEAD0.1 0104210000A xor r1,r1,r1 ; return 0 in r1
|
|
FFFFFFFFFFFFEAD0.2 0DFBE000000 ret
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Get character directly from keyboard. This routine blocks until a key is
|
|
; available.
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFEAE0.0 KeybdGetCharDirect:
|
|
FFFFFFFFFFFFEAE0.0 03FBC000010 subui sp,sp,#16
|
|
FFFFFFFFFFFFEAE0.1 27F40000002 sm [sp],r2/r31
|
|
FFFFFFFFFFFFEAE0.2 0A2FFDC0000 setlo r2,KEYBD
|
|
FFFFFFFFFFFFEAF0.0 kgc1:
|
|
FFFFFFFFFFFFEAF0.0 20803DC0000 inch r1,KEYBD
|
|
FFFFFFFFFFFFEAF0.1 2F840000001 bge r1,r0,kgc1
|
|
FFFFFFFFFFFFEAF0.2 24801DC0002 outc r0,KEYBD+2 ; clear keyboard strobe
|
|
FFFFFFFFFFFFEB00.0 050420000FF andi r1,r1,#0xff ; remove strobe bit
|
|
FFFFFFFFFFFFEB00.1 1000400041A lb r2,KeybdEcho ; is keyboard echo on ?
|
|
FFFFFFFFFFFFEB00.2 2F880000128 beq r2,r0,gk1
|
|
FFFFFFFFFFFFEB10.0 2C84010000D bnei r1,#'\r',gk2 ; convert CR keystroke into CRLF
|
|
FFFFFFFFFFFFEB10.1 0C7FFFFFC09 call CRLF
|
|
FFFFFFFFFFFFEB10.2 2F8000000AA bra gk1
|
|
FFFFFFFFFFFFEB20.0 gk2:
|
|
FFFFFFFFFFFFEB20.0 0C7FFFFFB65 call DisplayChar
|
|
FFFFFFFFFFFFEB20.1 gk1:
|
|
FFFFFFFFFFFFEB20.1 27740000002 lm [sp],r2/r31
|
|
FFFFFFFFFFFFEB20.2 0DFBE000010 ret #16
|
|
|
|
;==============================================================================
|
|
;==============================================================================
|
|
;------------------------------------------------------------------------------
|
|
; 1000 Hz interrupt
|
|
; - takes care of "flashing" the cursor
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFEB30.0 Pulse1000:
|
|
FFFFFFFFFFFFEB30.0 03FBC000018 subui sp,sp,#24
|
|
FFFFFFFFFFFFEB30.1 27F40000003 sm [sp],r1/r2/lr
|
|
FFFFFFFFFFFFEB30.2 11802000400 lw r1,Milliseconds
|
|
FFFFFFFFFFFFEB40.0 02842000001 addui r1,r1,#1
|
|
FFFFFFFFFFFFEB40.1 19802000400 sw r1,Milliseconds
|
|
FFFFFFFFFFFFEB40.2 0A2FFD00000 setlo r2,TEXTSCR
|
|
FFFFFFFFFFFFEB50.0 108820000DE lc r1,222[r2]
|
|
FFFFFFFFFFFFEB50.1 02842000001 addui r1,r1,#1
|
|
FFFFFFFFFFFFEB50.2 188820000DE sc r1,222[r2]
|
|
FFFFFFFFFFFFEB60.0 10801FF0000 lc r0,0xFFFF_FFFF_FFFF_0000 ; clear interrupt
|
|
FFFFFFFFFFFFEB60.1 11802000400 lw r1,Milliseconds
|
|
FFFFFFFFFFFFEB60.2 0504200007F andi r1,r1,#0x7f
|
|
FFFFFFFFFFFFEB70.0 2C840080040 bnei r1,#64,p10001
|
|
FFFFFFFFFFFFEB70.1 0C7FFFFFAE1 call FlashCursor
|
|
FFFFFFFFFFFFEB70.2 p10001:
|
|
FFFFFFFFFFFFEB70.2 27740000003 lm [sp],r1/r2/lr
|
|
FFFFFFFFFFFFEB80.0 0DFBE000018 ret #24
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Flash Cursor
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFEB80.1 FlashCursor:
|
|
FFFFFFFFFFFFEB80.1 03FBC000020 subui sp,sp,#32
|
|
FFFFFFFFFFFFEB80.2 27F40000007 sm [sp],r1/r2/r3/r31
|
|
FFFFFFFFFFFFEB90.0 0C7FFFFFB55 call CalcScreenLoc
|
|
FFFFFFFFFFFFEB90.1 02842010000 addui r1,r1,#0x10000
|
|
; causes screen colors to flip around
|
|
FFFFFFFFFFFFEB90.2 10844000000 lc r2,[r1]
|
|
FFFFFFFFFFFFEBA0.0 02884000001 addui r2,r2,#1
|
|
FFFFFFFFFFFFEBA0.1 18844000000 sc r2,[r1]
|
|
FFFFFFFFFFFFEBA0.2 11804000408 lw r2,Lastloc
|
|
FFFFFFFFFFFFEBB0.0 2F8440000A8 beq r1,r2,flshcrsr1
|
|
; restore the screen colors of the previous cursor location
|
|
FFFFFFFFFFFFEBB0.1 10806000414 lc r3,ScreenColor
|
|
FFFFFFFFFFFFEBB0.2 18886000000 sc r3,[r2]
|
|
FFFFFFFFFFFFEBC0.0 19802000408 sw r1,Lastloc
|
|
FFFFFFFFFFFFEBC0.1 flshcrsr1:
|
|
FFFFFFFFFFFFEBC0.1 27740000007 lm [sp],r1/r2/r3/r31
|
|
FFFFFFFFFFFFEBC0.2 0DFBE000020 ret #32
|
|
|
|
;------------------------------------------------------------------------------
|
|
;------------------------------------------------------------------------------
|
|
FFFFFFFFFFFFEBD0.0 ClearBmpScreen:
|
|
FFFFFFFFFFFFEBD0.0 03FBC000028 subui sp,sp,#40
|
|
FFFFFFFFFFFFEBD0.1 27F4000000F sm [sp],r1/r2/r3/r4/r31
|
|
FFFFFFFFFFFFEBD0.2 0A100000554 setlo r1,#1364 ; calc number to clear
|
|
FFFFFFFFFFFFEBE0.0 0A200000300 setlo r2,#768
|
|
FFFFFFFFFFFFEBE0.1 01044200018 mulu r2,r1,r2 ; r2 = # pixels to clear
|
|
FFFFFFFFFFFFEBE0.2 01004400009 or r4,r0,r2 ; r4 = # pixels to clear
|
|
FFFFFFFFFFFFEBF0.0 0A129292929 setlo r1,#0x29292929 ;
|
|
FFFFFFFFFFFFEBF0.1 0A300200000 setlo r3,#
|
|
FFFFFFFFFFFFEBF0.2 0E300000001 sethi r3,#>BITMAPSCR
|
|
FFFFFFFFFFFFEC00.0 csj4:
|
|
FFFFFFFFFFFFEC00.0 190C2000000 sh r1,[r3]
|
|
FFFFFFFFFFFFEC00.1 028C6000004 addui r3,r3,#4
|
|
FFFFFFFFFFFFEC00.2 2F80400000F loop r2,csj4
|
|
FFFFFFFFFFFFEC10.0 2774000000F lm [sp],r1/r2/r3/r4/r31
|
|
FFFFFFFFFFFFEC10.1 0DFBE000028 ret #40
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Clear the screen and the screen color memory
|
|
; We clear the screen to give a visual indication that the system
|
|
; is working at all.
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFEC10.2 ClearScreen:
|
|
FFFFFFFFFFFFEC10.2 03FBC000028 subui sp,sp,#40
|
|
FFFFFFFFFFFFEC20.0 27F4000000F sm [sp],r1/r2/r3/r4/r31
|
|
FFFFFFFFFFFFEC20.1 0A3FFDA0000 setlo r3,#TEXTREG
|
|
FFFFFFFFFFFFEC20.2 108C2000000 lc r1,TEXT_COLS[r3] ; calc number to clear
|
|
FFFFFFFFFFFFEC30.0 108C4000002 lc r2,TEXT_ROWS[r3]
|
|
FFFFFFFFFFFFEC30.1 01044200018 mulu r2,r1,r2 ; r2 = # chars to clear
|
|
FFFFFFFFFFFFEC30.2 0A100000020 setlo r1,#32 ; space char
|
|
FFFFFFFFFFFFEC40.0 10808000414 lc r4,ScreenColor
|
|
FFFFFFFFFFFFEC40.1 0C7FFFFFB45 call AsciiToScreen
|
|
FFFFFFFFFFFFEC40.2 0A3FFD00000 setlo r3,#TEXTSCR ; text screen address
|
|
FFFFFFFFFFFFEC50.0 csj4:
|
|
FFFFFFFFFFFFEC50.0 188C2000000 sc r1,[r3]
|
|
FFFFFFFFFFFFEC50.1 188C8010000 sc r4,0x10000[r3] ; color screen is 0x10000 higher
|
|
FFFFFFFFFFFFEC50.2 028C6000002 addu r3,r3,#2
|
|
FFFFFFFFFFFFEC60.0 2F805FFFF8F loop r2,csj4
|
|
FFFFFFFFFFFFEC60.1 2774000000F lm [sp],r1/r2/r3/r4/r31
|
|
FFFFFFFFFFFFEC60.2 0DFBE000028 ret #40
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Scroll text on the screen upwards
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFEC70.0 ScrollUp:
|
|
FFFFFFFFFFFFEC70.0 03FBC000028 subui sp,sp,#40
|
|
FFFFFFFFFFFFEC70.1 27F4000000F sm [sp],r1/r2/r3/r4/r31
|
|
FFFFFFFFFFFFEC70.2 0A3FFDA0000 setlo r3,#TEXTREG
|
|
FFFFFFFFFFFFEC80.0 108C2000000 lc r1,TEXT_COLS[r3] ; r1 = # text columns
|
|
FFFFFFFFFFFFEC80.1 108C4000002 lc r2,TEXT_ROWS[r3]
|
|
FFFFFFFFFFFFEC80.2 01044200018 mulu r2,r1,r2 ; calc number of chars to scroll
|
|
FFFFFFFFFFFFEC90.0 01082200005 subu r2,r2,r1 ; one less row
|
|
FFFFFFFFFFFFEC90.1 0A3FFD00000 setlo r3,#TEXTSCR
|
|
FFFFFFFFFFFFEC90.2 scrup1:
|
|
FFFFFFFFFFFFEC90.2 1A8C2400001 lc r4,[r3+r1] ; indexed addressing example
|
|
FFFFFFFFFFFFECA0.0 188C8000000 sc r4,[r3]
|
|
FFFFFFFFFFFFECA0.1 028C6000002 addui r3,r3,#2
|
|
FFFFFFFFFFFFECA0.2 2F805FFFFCF loop r2,scrup1
|
|
|
|
FFFFFFFFFFFFECB0.0 0A3FFDA0000 setlo r3,#TEXTREG
|
|
FFFFFFFFFFFFECB0.1 108C2000002 lc r1,TEXT_ROWS[r3]
|
|
FFFFFFFFFFFFECB0.2 03842000001 subui r1,r1,#1
|
|
FFFFFFFFFFFFECC0.0 0C7FFFFFB34 call BlankLine
|
|
FFFFFFFFFFFFECC0.1 2774000000F lm [sp],r1/r2/r3/r4/r31
|
|
FFFFFFFFFFFFECC0.2 0DFBE000028 ret #40
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Blank out a line on the display
|
|
; line number to blank is in r1
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFECD0.0 BlankLine:
|
|
FFFFFFFFFFFFECD0.0 03FBC000018 subui sp,sp,#24
|
|
FFFFFFFFFFFFECD0.1 27F00000007 sm [sp],r1/r2/r3
|
|
FFFFFFFFFFFFECD0.2 0A3FFDA0000 setlo r3,TEXTREG ; r3 = text register address
|
|
FFFFFFFFFFFFECE0.0 108C4000000 lc r2,TEXT_COLS[r3] ; r2 = # chars to blank out
|
|
FFFFFFFFFFFFECE0.1 01082300018 mulu r3,r2,r1
|
|
FFFFFFFFFFFFECE0.2 018C6080000 shli r3,r3,#1
|
|
FFFFFFFFFFFFECF0.0 028C7D00000 addui r3,r3,#TEXTSCR ; r3 = screen address
|
|
FFFFFFFFFFFFECF0.1 0A100000020 setlo r1,#' '
|
|
FFFFFFFFFFFFECF0.2 blnkln1:
|
|
FFFFFFFFFFFFECF0.2 188C2000000 sc r1,[r3]
|
|
FFFFFFFFFFFFED00.0 028C6000002 addui r3,r3,#2
|
|
FFFFFFFFFFFFED00.1 2F805FFFFCF loop r2,blnkln1
|
|
FFFFFFFFFFFFED00.2 27700000007 lm [sp],r1/r2/r3
|
|
FFFFFFFFFFFFED10.0 0DFBE000018 ret #24
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Convert ASCII character to screen display character.
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFED10.1 AsciiToScreen:
|
|
FFFFFFFFFFFFED10.1 050420000FF andi r1,r1,#0x00ff
|
|
FFFFFFFFFFFFED10.2 2A040240041 bltui r1,#'A',atoscr1
|
|
FFFFFFFFFFFFED20.0 2B04014005A bleui r1,#'Z',atoscr1
|
|
FFFFFFFFFFFFED20.1 2B84014007A bgtui r1,#'z',atoscr1
|
|
FFFFFFFFFFFFED20.2 2A040140061 bltui r1,#'a',atoscr1
|
|
FFFFFFFFFFFFED30.0 03042000060 subi r1,r1,#0x60
|
|
FFFFFFFFFFFFED30.1 atoscr1:
|
|
FFFFFFFFFFFFED30.1 05842000100 ori r1,r1,#0x100
|
|
FFFFFFFFFFFFED30.2 0DFBE000000 ret
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Convert screen character to ascii character
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFED40.0 ScreenToAscii:
|
|
FFFFFFFFFFFFED40.0 050420000FF andi r1,r1,#0xff
|
|
FFFFFFFFFFFFED40.1 2B84010001A bgtui r1,#26,stasc1
|
|
FFFFFFFFFFFFED40.2 0284200003C addui r1,r1,#60
|
|
FFFFFFFFFFFFED50.0 stasc1:
|
|
FFFFFFFFFFFFED50.0 0DFBE000000 ret
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Calculate screen memory location from CursorRow,CursorCol.
|
|
; Also refreshes the cursor location.
|
|
; Destroys r1,r2,r3
|
|
; r1 = screen location
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFED50.1 CalcScreenLoc:
|
|
FFFFFFFFFFFFED50.1 10802000416 lc r1,CursorRow
|
|
FFFFFFFFFFFFED50.2 0504200007F andi r1,r1,#0x7f
|
|
FFFFFFFFFFFFED60.0 0A3FFDA0000 setlo r3,TEXTREG
|
|
FFFFFFFFFFFFED60.1 208C4000000 inch r2,TEXT_COLS[r3]
|
|
FFFFFFFFFFFFED60.2 01082200018 mulu r2,r2,r1
|
|
FFFFFFFFFFFFED70.0 10802000418 lc r1,CursorCol
|
|
FFFFFFFFFFFFED70.1 0504200007F andi r1,r1,#0x7f
|
|
FFFFFFFFFFFFED70.2 01082200003 addu r2,r2,r1
|
|
FFFFFFFFFFFFED80.0 248C4000016 outc r2,TEXT_CURPOS[r3]
|
|
FFFFFFFFFFFFED80.1 01884080000 shli r2,r2,#1
|
|
FFFFFFFFFFFFED80.2 02883D00000 addui r1,r2,#TEXTSCR ; r1 = screen location
|
|
FFFFFFFFFFFFED90.0 0DFBE000000 ret
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Display a character on the screen
|
|
; d1.b = char to display
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFED90.1 DisplayChar:
|
|
FFFFFFFFFFFFED90.1 2C84020000D bnei r1,#'\r',dccr ; carriage return ?
|
|
FFFFFFFFFFFFED90.2 03FBC000020 subui sp,sp,#32
|
|
FFFFFFFFFFFFEDA0.0 27F40000007 sm [sp],r1/r2/r3/lr
|
|
FFFFFFFFFFFFEDA0.1 18800000418 sc r0,CursorCol ; just set cursor column to zero on a CR
|
|
FFFFFFFFFFFFEDA0.2 2F8000001AA bra dcx7
|
|
FFFFFFFFFFFFEDB0.0 dccr:
|
|
FFFFFFFFFFFFEDB0.0 2C840340091 bnei r1,#0x91,dcx6 ; cursor right ?
|
|
FFFFFFFFFFFFEDB0.1 03FBC000020 subui sp,sp,#32
|
|
FFFFFFFFFFFFEDB0.2 27F40000007 sm [sp],r1/r2/r3/lr
|
|
FFFFFFFFFFFFEDC0.0 10804000418 lc r2,CursorCol
|
|
FFFFFFFFFFFFEDC0.1 2C080140038 beqi r2,#56,dcx7
|
|
FFFFFFFFFFFFEDC0.2 02884000001 addui r2,r2,#1
|
|
FFFFFFFFFFFFEDD0.0 18804000418 sc r2,CursorCol
|
|
FFFFFFFFFFFFEDD0.1 dcx7:
|
|
FFFFFFFFFFFFEDD0.1 0C7FFFFFB55 call CalcScreenLoc
|
|
FFFFFFFFFFFFEDD0.2 27740000007 lm [sp],r1/r2/r3/lr
|
|
FFFFFFFFFFFFEDE0.0 0DFBE000020 ret #32
|
|
FFFFFFFFFFFFEDE0.1 dcx6:
|
|
FFFFFFFFFFFFEDE0.1 2C840300090 bnei r1,#0x90,dcx8 ; cursor up ?
|
|
FFFFFFFFFFFFEDE0.2 03FBC000020 subui sp,sp,#32
|
|
FFFFFFFFFFFFEDF0.0 27F40000007 sm [sp],r1/r2/r3/lr
|
|
FFFFFFFFFFFFEDF0.1 10804000416 lc r2,CursorRow
|
|
FFFFFFFFFFFFEDF0.2 2C0BFE40000 beqi r2,#0,dcx7
|
|
FFFFFFFFFFFFEE00.0 03884000001 subui r2,r2,#1
|
|
FFFFFFFFFFFFEE00.1 18804000416 sc r2,CursorRow
|
|
FFFFFFFFFFFFEE00.2 2F801FFFEAA bra dcx7
|
|
FFFFFFFFFFFFEE10.0 dcx8:
|
|
FFFFFFFFFFFFEE10.0 2C840280093 bnei r1,#0x93,dcx9 ; cursor left ?
|
|
FFFFFFFFFFFFEE10.1 03FBC000020 subui sp,sp,#32
|
|
FFFFFFFFFFFFEE10.2 27F40000007 sm [sp],r1/r2/r3/lr
|
|
FFFFFFFFFFFFEE20.0 10804000418 lc r2,CursorCol
|
|
FFFFFFFFFFFFEE20.1 2C0BFB40000 beqi r2,#0,dcx7
|
|
FFFFFFFFFFFFEE20.2 03884000001 subui r2,r2,#1
|
|
FFFFFFFFFFFFEE30.0 18804000418 sc r2,CursorCol
|
|
FFFFFFFFFFFFEE30.1 2F801FFFD2A bra dcx7
|
|
FFFFFFFFFFFFEE30.2 dcx9:
|
|
FFFFFFFFFFFFEE30.2 2C840340092 bnei r1,#0x92,dcx10 ; cursor down ?
|
|
FFFFFFFFFFFFEE40.0 03FBC000020 subui sp,sp,#32
|
|
FFFFFFFFFFFFEE40.1 27F40000007 sm [sp],r1/r2/r3/lr
|
|
FFFFFFFFFFFFEE40.2 10804000416 lc r2,CursorRow
|
|
FFFFFFFFFFFFEE50.0 2C0BF84001E beqi r2,#30,dcx7
|
|
FFFFFFFFFFFFEE50.1 02884000001 addui r2,r2,#1
|
|
FFFFFFFFFFFFEE50.2 18804000416 sc r2,CursorRow
|
|
FFFFFFFFFFFFEE60.0 2F801FFFBAA bra dcx7
|
|
FFFFFFFFFFFFEE60.1 dcx10:
|
|
FFFFFFFFFFFFEE60.1 2C840340094 bnei r1,#0x94,dcx11 ; cursor home ?
|
|
FFFFFFFFFFFFEE60.2 03FBC000020 subui sp,sp,#32
|
|
FFFFFFFFFFFFEE70.0 27F40000007 sm [sp],r1/r2/r3/lr
|
|
FFFFFFFFFFFFEE70.1 10804000418 lc r2,CursorCol
|
|
FFFFFFFFFFFFEE70.2 2F8800000C8 beq r2,r0,dcx12
|
|
FFFFFFFFFFFFEE80.0 18800000418 sc r0,CursorCol
|
|
FFFFFFFFFFFFEE80.1 2F801FFFAAA bra dcx7
|
|
FFFFFFFFFFFFEE80.2 dcx12:
|
|
FFFFFFFFFFFFEE80.2 18800000416 sc r0,CursorRow
|
|
FFFFFFFFFFFFEE90.0 2F801FFFA2A bra dcx7
|
|
FFFFFFFFFFFFEE90.1 dcx11:
|
|
FFFFFFFFFFFFEE90.1 03FBC000030 subui sp,sp,#48
|
|
FFFFFFFFFFFFEE90.2 27F4000001F sm [sp],r1/r2/r3/r4/r5/r31
|
|
FFFFFFFFFFFFEEA0.0 2C840180099 bnei r1,#0x99,dcx13 ; delete ?
|
|
FFFFFFFFFFFFEEA0.1 0C7FFFFFB55 call CalcScreenLoc
|
|
FFFFFFFFFFFFEEA0.2 01002300009 or r3,r0,r1 ; r3 = screen location
|
|
FFFFFFFFFFFFEEB0.0 10802000418 lc r1,CursorCol ; r1 = cursor column
|
|
FFFFFFFFFFFFEEB0.1 2F8000001AA bra dcx5
|
|
FFFFFFFFFFFFEEB0.2 dcx13:
|
|
FFFFFFFFFFFFEEB0.2 2C840680008 bnei r1,#CTRLH,dcx3 ; backspace ?
|
|
FFFFFFFFFFFFEEC0.0 10804000418 lc r2,CursorCol
|
|
FFFFFFFFFFFFEEC0.1 2F8800004A8 beq r2,r0,dcx4
|
|
FFFFFFFFFFFFEEC0.2 03884000001 subui r2,r2,#1
|
|
FFFFFFFFFFFFEED0.0 18804000418 sc r2,CursorCol
|
|
FFFFFFFFFFFFEED0.1 0C7FFFFFB55 call CalcScreenLoc ; a0 = screen location
|
|
FFFFFFFFFFFFEED0.2 01002300009 or r3,r0,r1 ; r3 = screen location
|
|
FFFFFFFFFFFFEEE0.0 10802000418 lc r1,CursorCol
|
|
FFFFFFFFFFFFEEE0.1 dcx5:
|
|
FFFFFFFFFFFFEEE0.1 108C4000002 lc r2,2[r3]
|
|
FFFFFFFFFFFFEEE0.2 188C4000000 sc r2,[r3]
|
|
FFFFFFFFFFFFEEF0.0 028C6000002 addui r3,r3,#2
|
|
FFFFFFFFFFFFEEF0.1 02842000001 addui r1,r1,#1
|
|
FFFFFFFFFFFFEEF0.2 0A4FFDA0000 setlo r4,#TEXTREG
|
|
FFFFFFFFFFFFEF00.0 2090A000000 inch r5,TEXT_COLS[r4]
|
|
FFFFFFFFFFFFEF00.1 2F84BFFFF24 bltu r1,r5,dcx5
|
|
FFFFFFFFFFFFEF00.2 0A200000020 setlo r2,#' '
|
|
FFFFFFFFFFFFEF10.0 188C5FFFFFE sc r2,-2[r3]
|
|
FFFFFFFFFFFFEF10.1 2F80000022A bra dcx4
|
|
FFFFFFFFFFFFEF10.2 dcx3:
|
|
FFFFFFFFFFFFEF10.2 2C04040000A beqi r1,#'\n',dclf ; linefeed ?
|
|
FFFFFFFFFFFFEF20.0 01002400009 or r4,r0,r1 ; save r1 in r4
|
|
FFFFFFFFFFFFEF20.1 0C7FFFFFB55 call CalcScreenLoc ; r1 = screen location
|
|
FFFFFFFFFFFFEF20.2 01002300009 or r3,r0,r1 ; r3 = screen location
|
|
FFFFFFFFFFFFEF30.0 01008100009 or r1,r0,r4 ; restore r1
|
|
FFFFFFFFFFFFEF30.1 0C7FFFFFB45 call AsciiToScreen ; convert ascii char to screen char
|
|
FFFFFFFFFFFFEF30.2 188C2000000 sc r1,[r3]
|
|
FFFFFFFFFFFFEF40.0 0C7FFFFFBD8 call IncCursorPos
|
|
FFFFFFFFFFFFEF40.1 2774000001F lm [sp],r1/r2/r3/r4/r5/r31
|
|
FFFFFFFFFFFFEF40.2 0DFBE000030 ret #48
|
|
FFFFFFFFFFFFEF50.0 dclf:
|
|
FFFFFFFFFFFFEF50.0 0C7FFFFFBE4 call IncCursorRow
|
|
FFFFFFFFFFFFEF50.1 dcx4:
|
|
FFFFFFFFFFFFEF50.1 2774000001F lm [sp],r1/r2/r3/r4/r5/r31
|
|
FFFFFFFFFFFFEF50.2 0DFBE000030 ret #48
|
|
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Increment the cursor position, scroll the screen if needed.
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFEF60.0 IncCursorPos:
|
|
FFFFFFFFFFFFEF60.0 03FBC000020 subui sp,sp,#32
|
|
FFFFFFFFFFFFEF60.1 27F40000007 sm [r30],r1/r2/r3/r31
|
|
FFFFFFFFFFFFEF60.2 10802000418 lc r1,CursorCol
|
|
FFFFFFFFFFFFEF70.0 02842000001 addui r1,r1,#1
|
|
FFFFFFFFFFFFEF70.1 18802000418 sc r1,CursorCol
|
|
FFFFFFFFFFFFEF70.2 20805DA0000 inch r2,TEXTREG+TEXT_COLS
|
|
FFFFFFFFFFFFEF80.0 2F844000226 bleu r1,r2,icc1
|
|
FFFFFFFFFFFFEF80.1 18800000418 sc r0,CursorCol ; column = 0
|
|
FFFFFFFFFFFFEF80.2 2F8000000CA bra icr1
|
|
FFFFFFFFFFFFEF90.0 IncCursorRow:
|
|
FFFFFFFFFFFFEF90.0 03FBC000020 subui sp,sp,#32
|
|
FFFFFFFFFFFFEF90.1 27F40000007 sm [sp],r1/r2/r3/r31
|
|
FFFFFFFFFFFFEF90.2 icr1:
|
|
FFFFFFFFFFFFEF90.2 10802000416 lc r1,CursorRow
|
|
FFFFFFFFFFFFEFA0.0 02842000001 addui r1,r1,#1
|
|
FFFFFFFFFFFFEFA0.1 18802000416 sc r1,CursorRow
|
|
FFFFFFFFFFFFEFA0.2 20805DA0002 inch r2,TEXTREG+TEXT_ROWS
|
|
FFFFFFFFFFFFEFB0.0 2F8440000A6 bleu r1,r2,icc1
|
|
FFFFFFFFFFFFEFB0.1 03884000001 subui r2,r2,#1 ; backup the cursor row, we are scrolling up
|
|
FFFFFFFFFFFFEFB0.2 18804000416 sc r2,CursorRow
|
|
FFFFFFFFFFFFEFC0.0 0C7FFFFFB1C call ScrollUp
|
|
FFFFFFFFFFFFEFC0.1 icc1:
|
|
FFFFFFFFFFFFEFC0.1 0C7FFFFFB55 call CalcScreenLoc
|
|
FFFFFFFFFFFFEFC0.2 27740000007 lm [sp],r1/r2/r3/r31
|
|
FFFFFFFFFFFFEFD0.0 0DFBE000020 ret #32
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Display a string on the screen.
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFEFD0.1 DisplayString:
|
|
FFFFFFFFFFFFEFD0.1 037BC000018 subi sp,sp,#24
|
|
FFFFFFFFFFFFEFD0.2 27F40000003 sm [sp],r1/r2/r31
|
|
FFFFFFFFFFFFEFE0.0 01040200009 or r2,r1,r0 ; r2 = pointer to string
|
|
FFFFFFFFFFFFEFE0.1 dspj1:
|
|
FFFFFFFFFFFFEFE0.1 12882000000 lbu r1,[r2] ; move string char into r1
|
|
FFFFFFFFFFFFEFE0.2 02884000001 addui r2,r2,#1 ; increment pointer
|
|
FFFFFFFFFFFFEFF0.0 2F840000088 beq r1,r0,dsret ; is it end of string ?
|
|
FFFFFFFFFFFFEFF0.1 0C7FFFFFB65 call DisplayChar ; display character
|
|
FFFFFFFFFFFFEFF0.2 2F801FFFFAA bra dspj1 ; go back for next character
|
|
FFFFFFFFFFFFF000.0 dsret:
|
|
FFFFFFFFFFFFF000.0 27740000003 lm [r30],r1/r2/r31
|
|
FFFFFFFFFFFFF000.1 0DFBE000018 ret #24
|
|
|
|
FFFFFFFFFFFFF000.2 DisplayStringCRLF:
|
|
FFFFFFFFFFFFF000.2 03FBC000008 subui r30,r30,#8
|
|
FFFFFFFFFFFFF010.0 19FBE000000 sw r31,[r30]
|
|
FFFFFFFFFFFFF010.1 0C7FFFFFBF5 call DisplayString
|
|
FFFFFFFFFFFFF010.2 11FBE000000 lw r31,[r30]
|
|
FFFFFFFFFFFFF020.0 02FBC000008 addui r30,r30,#8
|
|
|
|
FFFFFFFFFFFFF020.1 CRLF:
|
|
FFFFFFFFFFFFF020.1 03FBC000010 subui r30,r30,#16
|
|
FFFFFFFFFFFFF020.2 19F82000000 sw r1,[r30]
|
|
FFFFFFFFFFFFF030.0 19FBE000008 sw r31,8[r30]
|
|
FFFFFFFFFFFFF030.1 0A10000000D setlo r1,#'\r'
|
|
FFFFFFFFFFFFF030.2 0C7FFFFFB65 call DisplayChar
|
|
FFFFFFFFFFFFF040.0 0A10000000A setlo r1,#'\n'
|
|
FFFFFFFFFFFFF040.1 0C7FFFFFB65 call DisplayChar
|
|
FFFFFFFFFFFFF040.2 11F82000000 lw r1,[r30]
|
|
FFFFFFFFFFFFF050.0 11FBE000008 lw r31,8[r30]
|
|
FFFFFFFFFFFFF050.1 0DFBE000010 ret #16
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Display nybble in r1
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFF050.2 DisplayNybble:
|
|
FFFFFFFFFFFFF050.2 03FBC000010 subui r30,r30,#16
|
|
FFFFFFFFFFFFF060.0 19FBE000008 sw r31,8[r30]
|
|
FFFFFFFFFFFFF060.1 19F82000000 sw r1,[r30]
|
|
FFFFFFFFFFFFF060.2 0504200000F andi r1,r1,#0x0F
|
|
FFFFFFFFFFFFF070.0 02842000030 addui r1,r1,#'0'
|
|
FFFFFFFFFFFFF070.1 2B040100039 bleui r1,#'9',dispnyb1
|
|
FFFFFFFFFFFFF070.2 02842000007 addui r1,r1,#7
|
|
FFFFFFFFFFFFF080.0 dispnyb1:
|
|
FFFFFFFFFFFFF080.0 0C7FFFFFB65 call DisplayChar
|
|
FFFFFFFFFFFFF080.1 11F82000000 lw r1,[r30]
|
|
FFFFFFFFFFFFF080.2 11FBE000008 lw r31,8[r30]
|
|
FFFFFFFFFFFFF090.0 0DFBE000010 ret #16
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Display the byte in r1
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFF090.1 DisplayByte:
|
|
FFFFFFFFFFFFF090.1 03FBC000010 subui sp,sp,#16
|
|
FFFFFFFFFFFFF090.2 27F40000001 sm [sp],r1/r31
|
|
FFFFFFFFFFFFF0A0.0 01842200004 rori r1,r1,#4
|
|
FFFFFFFFFFFFF0A0.1 0C7FFFFFC16 call DisplayNybble
|
|
FFFFFFFFFFFFF0A0.2 01842200002 roli r1,r1,#4
|
|
FFFFFFFFFFFFF0B0.0 0C7FFFFFC16 call DisplayNybble
|
|
FFFFFFFFFFFFF0B0.1 27740000001 lm [sp],r1/r31
|
|
FFFFFFFFFFFFF0B0.2 0DFBE000010 ret #16
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Display the 64 bit word in r1
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFF0C0.0 DisplayWord:
|
|
FFFFFFFFFFFFF0C0.0 03FBC000018 subui sp,sp,#24
|
|
FFFFFFFFFFFFF0C0.1 27F40000005 sm [sp],r1/r3/r31
|
|
FFFFFFFFFFFFF0C0.2 0A300000007 setlo r3,#7
|
|
FFFFFFFFFFFFF0D0.0 dspwd1:
|
|
FFFFFFFFFFFFF0D0.0 01842400002 roli r1,r1,#8
|
|
FFFFFFFFFFFFF0D0.1 0C7FFFFFC25 call DisplayByte
|
|
FFFFFFFFFFFFF0D0.2 2F80600000F loop r3,dspwd1
|
|
FFFFFFFFFFFFF0E0.0 27740000005 lm [sp],r1/r3/r31
|
|
FFFFFFFFFFFFF0E0.1 0DFBE000018 ret #24
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Display memory pointed to by r2.
|
|
; destroys r1,r3
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFF0E0.2 DisplayMem:
|
|
FFFFFFFFFFFFF0E0.2 03FBC000008 subui sp,sp,#8
|
|
FFFFFFFFFFFFF0F0.0 19FBE000000 sw lr,[sp]
|
|
FFFFFFFFFFFFF0F0.1 0A10000003A setlo r1,#':'
|
|
FFFFFFFFFFFFF0F0.2 0C7FFFFFB65 call DisplayChar
|
|
FFFFFFFFFFFFF100.0 01080100009 or r1,r2,r0
|
|
FFFFFFFFFFFFF100.1 0C7FFFFFC30 call DisplayWord
|
|
FFFFFFFFFFFFF100.2 0A300000007 setlo r3,#7
|
|
FFFFFFFFFFFFF110.0 dspmem1:
|
|
FFFFFFFFFFFFF110.0 0A100000020 setlo r1,#' '
|
|
FFFFFFFFFFFFF110.1 0C7FFFFFB65 call DisplayChar
|
|
FFFFFFFFFFFFF110.2 10082000000 lb r1,[r2]
|
|
FFFFFFFFFFFFF120.0 0C7FFFFFC25 call DisplayByte
|
|
FFFFFFFFFFFFF120.1 02884000001 addui r2,r2,#1
|
|
FFFFFFFFFFFFF120.2 2F807FFFF8F loop r3,dspmem1
|
|
FFFFFFFFFFFFF130.0 0C7FFFFFC09 call CRLF
|
|
FFFFFFFFFFFFF130.1 11FBE000000 lw lr,[sp]
|
|
FFFFFFFFFFFFF130.2 0DFBE000008 ret #8
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Converts binary number in r1 into BCD number in r2 and r1.
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFF140.0 BinToBCD:
|
|
FFFFFFFFFFFFF140.0 03FBC000030 subui sp,sp,#48
|
|
FFFFFFFFFFFFF140.1 27F000000FC sm [sp],r3/r4/r5/r6/r7/r8
|
|
FFFFFFFFFFFFF140.2 0A20000000A setlo r2,#10
|
|
FFFFFFFFFFFFF150.0 0A800000013 setlo r8,#19 ; number of digits to produce - 1
|
|
FFFFFFFFFFFFF150.1 bta1:
|
|
FFFFFFFFFFFFF150.1 0104430001C mod r3,r1,r2
|
|
FFFFFFFFFFFFF150.2 018C7E00000 shli r3,r3,#60 ; shift result to uppermost bits
|
|
FFFFFFFFFFFFF160.0 0194FE00000 shli r7,r5,#60 ; copy low order nybble of r5 to r4 topmost nybble
|
|
FFFFFFFFFFFFF160.1 01908200001 shrui r4,r4,#4
|
|
FFFFFFFFFFFFF160.2 0110E400009 or r4,r4,r7
|
|
FFFFFFFFFFFFF170.0 0194A200001 shrui r5,r5,#4
|
|
FFFFFFFFFFFFF170.1 01146500009 or r5,r5,r3 ; copy new bcd digit into uppermost bits of r5
|
|
FFFFFFFFFFFFF170.2 07042000000 divui r1,r1,r2 ; r1=r1/10
|
|
FFFFFFFFFFFFF180.0 2F811FFFEAF loop r8,bta1
|
|
FFFFFFFFFFFFF180.1 01909800001 shrui r4,r4,#48 ; right align number in register
|
|
FFFFFFFFFFFFF180.2 0194C800000 shli r6,r5,#16
|
|
FFFFFFFFFFFFF190.0 0110C400009 or r4,r4,r6 ; copy bits into r4
|
|
FFFFFFFFFFFFF190.1 0194B800001 shrui r5,r5,#48
|
|
FFFFFFFFFFFFF190.2 01008100009 or r1,r0,r4
|
|
FFFFFFFFFFFFF1A0.0 0100A200009 or r2,r0,r5
|
|
FFFFFFFFFFFFF1A0.1 277000000FC lm [sp],r3/r4/r5/r6/r7/r8
|
|
FFFFFFFFFFFFF1A0.2 0DFBE000030 ret #48
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Converts BCD number in r1 into Ascii number in r2 and r1.
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFF1B0.0 BCDToAscii:
|
|
FFFFFFFFFFFFF1B0.0 03FBC000020 subui sp,sp,#32
|
|
FFFFFFFFFFFFF1B0.1 27F0000009C sm [sp],r3/r4/r5/r8
|
|
FFFFFFFFFFFFF1B0.2 0A80000000F setlo r8,#15
|
|
FFFFFFFFFFFFF1C0.0 bta2:
|
|
FFFFFFFFFFFFF1C0.0 0504400000F andi r2,r1,#0x0F
|
|
FFFFFFFFFFFFF1C0.1 05884000030 ori r2,r2,#0x30
|
|
FFFFFFFFFFFFF1C0.2 01885C00000 shli r2,r2,#56
|
|
FFFFFFFFFFFFF1D0.0 01908400001 shrui r4,r4,#8
|
|
FFFFFFFFFFFFF1D0.1 018CBC00000 shli r5,r3,#56
|
|
FFFFFFFFFFFFF1D0.2 0110A400009 or r4,r4,r5
|
|
FFFFFFFFFFFFF1E0.0 018C6400001 shrui r3,r3,#8
|
|
FFFFFFFFFFFFF1E0.1 010C4300009 or r3,r3,r2
|
|
FFFFFFFFFFFFF1E0.2 01842200001 shrui r1,r1,#4
|
|
FFFFFFFFFFFFF1F0.0 2F811FFFE8F loop r8,bta2
|
|
FFFFFFFFFFFFF1F0.1 01008100009 or r1,r0,r4
|
|
FFFFFFFFFFFFF1F0.2 01006200009 or r2,r0,r3
|
|
FFFFFFFFFFFFF200.0 2770000009C lm [sp],r3/r4/r5/r8
|
|
FFFFFFFFFFFFF200.1 0DFBE000020 ret #32
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Convert a binary number into a 20 character ascii string.
|
|
; r1 = number to convert
|
|
; r2 = address of string buffer
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFF200.2 BinToStr:
|
|
FFFFFFFFFFFFF200.2 03FBC000038 subui sp,sp,#56
|
|
FFFFFFFFFFFFF210.0 27F400007C4 sm [sp],r3/r7/r8/r9/r10/r11/r31
|
|
FFFFFFFFFFFFF210.1 01004B00009 or r11,r0,r2
|
|
FFFFFFFFFFFFF210.2 0C7FFFFFC50 call BinToBCD
|
|
FFFFFFFFFFFFF220.0 01004A00009 or r10,r0,r2 ; save off r2
|
|
FFFFFFFFFFFFF220.1 0C7FFFFFC6C call BCDToAscii
|
|
FFFFFFFFFFFFF220.2 0A900000001 setlo r9,#1
|
|
FFFFFFFFFFFFF230.0 btos3:
|
|
FFFFFFFFFFFFF230.0 0A800000007 setlo r8,#7
|
|
FFFFFFFFFFFFF230.1 btos1:
|
|
FFFFFFFFFFFFF230.1 01A4E180000 shli r7,r9,#3
|
|
FFFFFFFFFFFFF230.2 029CE000000 addui r7,r7,r8
|
|
FFFFFFFFFFFFF240.0 029CE000004 addui r7,r7,#4
|
|
FFFFFFFFFFFFF240.1 050460000FF andi r3,r1,#0xff
|
|
FFFFFFFFFFFFF240.2 1A9D6300010 sb r3,[r7+r11]
|
|
FFFFFFFFFFFFF250.0 01842400001 shrui r1,r1,#8
|
|
FFFFFFFFFFFFF250.1 2F811FFFF2F loop r8,btos1
|
|
FFFFFFFFFFFFF250.2 01004100009 or r1,r0,r2
|
|
FFFFFFFFFFFFF260.0 2F813FFFE8F loop r9,btos3
|
|
; the last four digits
|
|
FFFFFFFFFFFFF260.1 01014100009 or r1,r0,r10 ; get back r2
|
|
FFFFFFFFFFFFF260.2 0C7FFFFFC6C call BCDToAscii
|
|
FFFFFFFFFFFFF270.0 0A800000003 setlo r8,#3
|
|
FFFFFFFFFFFFF270.1 btos2:
|
|
FFFFFFFFFFFFF270.1 050460000FF andi r3,r1,#0xff
|
|
FFFFFFFFFFFFF270.2 1AA16300010 sb r3,[r8+r11]
|
|
FFFFFFFFFFFFF280.0 01842400001 shrui r1,r1,#8
|
|
FFFFFFFFFFFFF280.1 2F811FFFFAF loop r8,btos2
|
|
FFFFFFFFFFFFF280.2 182C0000014 sb r0,20[r11] ; null terminate
|
|
FFFFFFFFFFFFF290.0 277400007C4 lm [sp],r3/r7/r8/r9/r10/r11/r31
|
|
FFFFFFFFFFFFF290.1 0DFBE000038 ret #56
|
|
|
|
|
|
;==============================================================================
|
|
;==============================================================================
|
|
FFFFFFFFFFFFF290.2 Monitor:
|
|
FFFFFFFFFFFFF290.2 0BEFFFEFFF8 setlo sp,#STACKTOP ; top of stack; reset the stack pointer
|
|
FFFFFFFFFFFFF2A0.0 1800000041A sb r0,KeybdEcho ; turn off keyboard echo
|
|
FFFFFFFFFFFFF2A0.1 PromptLn:
|
|
FFFFFFFFFFFFF2A0.1 0C7FFFFFC09 call CRLF
|
|
FFFFFFFFFFFFF2A0.2 0A100000024 setlo r1,#'$'
|
|
FFFFFFFFFFFFF2B0.0 0C7FFFFFB65 call DisplayChar
|
|
|
|
; Get characters until a CR is keyed
|
|
;
|
|
FFFFFFFFFFFFF2B0.1 Prompt3:
|
|
FFFFFFFFFFFFF2B0.1 0C7FFFFFA92 call KeybdGetChar
|
|
FFFFFFFFFFFFF2B0.2 2C04007FFFF beqi r1,#-1,Prompt3 ; wait for a character
|
|
FFFFFFFFFFFFF2C0.0 2C04010000D beqi r1,#CR,Prompt1
|
|
FFFFFFFFFFFFF2C0.1 0C7FFFFFB65 call DisplayChar
|
|
FFFFFFFFFFFFF2C0.2 2F801FFFFAA bra Prompt3
|
|
|
|
; Process the screen line that the CR was keyed on
|
|
;
|
|
FFFFFFFFFFFFF2D0.0 Prompt1:
|
|
FFFFFFFFFFFFF2D0.0 18800000418 sc r0,CursorCol ; go back to the start of the line
|
|
FFFFFFFFFFFFF2D0.1 0C7FFFFFB55 call CalcScreenLoc ; r1 = screen memory location
|
|
FFFFFFFFFFFFF2D0.2 01040300009 or r3,r1,r0
|
|
FFFFFFFFFFFFF2E0.0 108C2000000 lc r1,[r3]
|
|
FFFFFFFFFFFFF2E0.1 028C6000002 addui r3,r3,#2
|
|
FFFFFFFFFFFFF2E0.2 0C7FFFFFB50 call ScreenToAscii
|
|
FFFFFFFFFFFFF2F0.0 2C840140024 bnei r1,#'$',Prompt2 ; skip over '$' prompt character
|
|
FFFFFFFFFFFFF2F0.1 108C2000000 lc r1,[r3]
|
|
FFFFFFFFFFFFF2F0.2 028C6000002 addui r3,r3,#2
|
|
FFFFFFFFFFFFF300.0 0C7FFFFFB50 call ScreenToAscii
|
|
|
|
; Dispatch based on command character
|
|
;
|
|
FFFFFFFFFFFFF300.1 Prompt2:
|
|
FFFFFFFFFFFFF300.1 2C04150003A beqi r1,#':',Editmem ; $: - edit memory
|
|
FFFFFFFFFFFFF300.2 2C041A00044 beqi r1,#'D',Dumpmem ; $D - dump memory
|
|
FFFFFFFFFFFFF310.0 2C075140042 beqi r1,#'B',START ; $B - start tiny basic
|
|
FFFFFFFFFFFFF310.1 2C04174004A beqi r1,#'J',ExecuteCode ; $J - execute code
|
|
FFFFFFFFFFFFF310.2 2C04280004C beqi r1,#'L',LoadS19 ; $L - load S19 file
|
|
FFFFFFFFFFFFF320.0 2C04054003F beqi r1,#'?',DisplayHelp ; $? - display help
|
|
FFFFFFFFFFFFF320.1 2C040100043 beqi r1,#'C',TestCLS ; $C - clear screen
|
|
FFFFFFFFFFFFF320.2 2F801FFFBCA bra Monitor
|
|
|
|
FFFFFFFFFFFFF330.0 TestCLS:
|
|
FFFFFFFFFFFFF330.0 108C2000000 lc r1,[r3]
|
|
FFFFFFFFFFFFF330.1 028C6000002 addui r3,r3,#2
|
|
FFFFFFFFFFFFF330.2 0C7FFFFFB50 call ScreenToAscii
|
|
FFFFFFFFFFFFF340.0 2C87F58004C bnei r1,#'L',Monitor
|
|
FFFFFFFFFFFFF340.1 108C2000000 lc r1,[r3]
|
|
FFFFFFFFFFFFF340.2 028C6000002 addui r3,r3,#2
|
|
FFFFFFFFFFFFF350.0 0C7FFFFFB50 call ScreenToAscii
|
|
FFFFFFFFFFFFF350.1 2C87F480053 bnei r1,#'S',Monitor
|
|
FFFFFFFFFFFFF350.2 0C7FFFFFB06 call ClearScreen
|
|
FFFFFFFFFFFFF360.0 18000000418 sb r0,CursorCol
|
|
FFFFFFFFFFFFF360.1 18000000416 sb r0,CursorRow
|
|
FFFFFFFFFFFFF360.2 0C7FFFFFB55 call CalcScreenLoc
|
|
FFFFFFFFFFFFF370.0 2F801FFF94A bra Monitor
|
|
|
|
FFFFFFFFFFFFF370.1 DisplayHelp:
|
|
FFFFFFFFFFFFF370.1 0A1FFFFF390 setlo r1,HelpMsg
|
|
FFFFFFFFFFFFF370.2 0C7FFFFFBF5 call DisplayString
|
|
FFFFFFFFFFFFF380.0 2F801FFF8CA bra Monitor
|
|
|
|
FFFFFFFFFFFFF380.1 37800000000 align 16
|
|
FFFFFFFFFFFFF380.2 37800000000 align 16
|
|
FFFFFFFFFFFFF390.0 align 16
|
|
FFFFFFFFFFFFF390.0 HelpMsg:
|
|
FFFFFFFFFFFFF390 70736944203D203F db "? = Display help",CR,LF
|
|
FFFFFFFFFFFFF398 706C65682079616C
|
|
FFFFFFFFFFFFF3A0 203D20534C430A0D db "CLS = clear screen",CR,LF
|
|
FFFFFFFFFFFFF3A8 6373207261656C63
|
|
FFFFFFFFFFFFF3B0 203A0A0D6E656572 db ": = Edit memory bytes",CR,LF
|
|
FFFFFFFFFFFFF3B8 6D2074696445203D
|
|
FFFFFFFFFFFFF3C0 79622079726F6D65
|
|
FFFFFFFFFFFFF3C8 3D204C0A0D736574 db "L = Load S19 file",CR,LF
|
|
FFFFFFFFFFFFF3D0 31532064616F4C20
|
|
FFFFFFFFFFFFF3D8 0A0D656C69662039
|
|
FFFFFFFFFFFFF3E0 706D7544203D2044 db "D = Dump memory",CR,LF
|
|
FFFFFFFFFFFFF3E8 0D79726F6D656D20
|
|
FFFFFFFFFFFFF3F0 617473203D20420A db "B = start tiny basic",CR,LF
|
|
FFFFFFFFFFFFF3F8 20796E6974207472
|
|
FFFFFFFFFFFFF400 4A0A0D6369736162 db "J = Jump to code",CR,LF,0
|
|
FFFFFFFFFFFFF408 20706D754A203D20
|
|
FFFFFFFFFFFFF410 0D65646F63206F74
|
|
FFFFFFFFFFFFF418 000000000000000A align 16
|
|
FFFFFFFFFFFFF420.0 align 16
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Ignore blanks in the input
|
|
; r3 = text pointer
|
|
; r1 destroyed
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFF420.0 ignBlanks:
|
|
FFFFFFFFFFFFF420.0 03FBC000008 subui sp,sp,#8
|
|
FFFFFFFFFFFFF420.1 19FBE000000 sw r31,[sp]
|
|
FFFFFFFFFFFFF420.2 ignBlanks1:
|
|
FFFFFFFFFFFFF420.2 108C2000000 lc r1,[r3]
|
|
FFFFFFFFFFFFF430.0 028C6000002 addui r3,r3,#2
|
|
FFFFFFFFFFFFF430.1 0C7FFFFFB50 call ScreenToAscii
|
|
FFFFFFFFFFFFF430.2 2C07FF80020 beqi r1,#' ',ignBlanks1
|
|
FFFFFFFFFFFFF440.0 038C6000002 subui r3,r3,#2
|
|
FFFFFFFFFFFFF440.1 11FBE000000 lw r31,[sp]
|
|
FFFFFFFFFFFFF440.2 0DFBE000008 ret #8
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Edit memory byte(s).
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFF450.0 EditMem:
|
|
FFFFFFFFFFFFF450.0 0C7FFFFFD08 call ignBlanks
|
|
FFFFFFFFFFFFF450.1 0C7FFFFFD39 call GetHexNumber
|
|
FFFFFFFFFFFFF450.2 01040500009 or r5,r1,r0
|
|
FFFFFFFFFFFFF460.0 0A400000007 setlo r4,#7
|
|
FFFFFFFFFFFFF460.1 edtmem1:
|
|
FFFFFFFFFFFFF460.1 0C7FFFFFD08 call ignBlanks
|
|
FFFFFFFFFFFFF460.2 0C7FFFFFD39 call GetHexNumber
|
|
FFFFFFFFFFFFF470.0 18142000000 sb r1,[r5]
|
|
FFFFFFFFFFFFF470.1 0294A000001 addui r5,r5,#1
|
|
FFFFFFFFFFFFF470.2 2F809FFFFAF loop r4,edtmem1
|
|
FFFFFFFFFFFFF480.0 2F801FFF0CA bra Monitor
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Execute code at the specified address.
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFF480.1 ExecuteCode:
|
|
FFFFFFFFFFFFF480.1 0C7FFFFFD08 call ignBlanks
|
|
FFFFFFFFFFFFF480.2 0C7FFFFFD39 call GetHexNumber
|
|
FFFFFFFFFFFFF490.0 01040300009 or r3,r1,r0
|
|
FFFFFFFFFFFFF490.1 0D0FE000000 jal r31,[r3]
|
|
FFFFFFFFFFFFF490.2 2F801FFF04A bra Monitor
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Do a memory dump of the requested location.
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFF4A0.0 DumpMem:
|
|
FFFFFFFFFFFFF4A0.0 0C7FFFFFD08 call ignBlanks
|
|
FFFFFFFFFFFFF4A0.1 0C7FFFFFD39 call GetHexNumber
|
|
FFFFFFFFFFFFF4A0.2 01040200009 or r2,r1,r0
|
|
FFFFFFFFFFFFF4B0.0 0C7FFFFFC09 call CRLF
|
|
FFFFFFFFFFFFF4B0.1 0C7FFFFFC3A call DisplayMem
|
|
FFFFFFFFFFFFF4B0.2 0C7FFFFFC3A call DisplayMem
|
|
FFFFFFFFFFFFF4C0.0 0C7FFFFFC3A call DisplayMem
|
|
FFFFFFFFFFFFF4C0.1 0C7FFFFFC3A call DisplayMem
|
|
FFFFFFFFFFFFF4C0.2 0C7FFFFFC3A call DisplayMem
|
|
FFFFFFFFFFFFF4D0.0 0C7FFFFFC3A call DisplayMem
|
|
FFFFFFFFFFFFF4D0.1 0C7FFFFFC3A call DisplayMem
|
|
FFFFFFFFFFFFF4D0.2 0C7FFFFFC3A call DisplayMem
|
|
FFFFFFFFFFFFF4E0.0 2F801FFEDCA bra Monitor
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Get a hexidecimal number. Maximum of sixteen digits.
|
|
; R3 = text pointer (updated)
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFF4E0.1 GetHexNumber:
|
|
FFFFFFFFFFFFF4E0.1 03FBC000018 subui sp,sp,#24
|
|
FFFFFFFFFFFFF4E0.2 27F4000000A sm [sp],r2/r4/r31
|
|
FFFFFFFFFFFFF4F0.0 0A200000000 setlo r2,#0
|
|
FFFFFFFFFFFFF4F0.1 0A40000000F setlo r4,#15
|
|
FFFFFFFFFFFFF4F0.2 gthxn2:
|
|
FFFFFFFFFFFFF4F0.2 108C2000000 lc r1,[r3]
|
|
FFFFFFFFFFFFF500.0 028C6000002 addui r3,r3,#2
|
|
FFFFFFFFFFFFF500.1 0C7FFFFFB50 call ScreenToAscii
|
|
FFFFFFFFFFFFF500.2 0C7FFFFFD4E call AsciiToHexNybble
|
|
FFFFFFFFFFFFF510.0 2C0401BFFFF beqi r1,#-1,gthxn1
|
|
FFFFFFFFFFFFF510.1 01884200000 shli r2,r2,#4
|
|
FFFFFFFFFFFFF510.2 0504200000F andi r1,r1,#0x0f
|
|
FFFFFFFFFFFFF520.0 01082200009 or r2,r2,r1
|
|
FFFFFFFFFFFFF520.1 2F809FFFECF loop r4,gthxn2
|
|
FFFFFFFFFFFFF520.2 gthxn1:
|
|
FFFFFFFFFFFFF520.2 01080100009 or r1,r2,r0
|
|
FFFFFFFFFFFFF530.0 2774000000A lm [sp],r2/r4/r31
|
|
FFFFFFFFFFFFF530.1 0DFBE000018 ret #24
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Convert ASCII character in the range '0' to '9', 'a' to 'f' or 'A' to 'F'
|
|
; to a hex nybble.
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFF530.2 AsciiToHexNybble:
|
|
FFFFFFFFFFFFF530.2 2A040540030 bltui r1,#'0',gthx3
|
|
FFFFFFFFFFFFF540.0 2B840100039 bgtui r1,#'9',gthx5
|
|
FFFFFFFFFFFFF540.1 03842000030 subui r1,r1,#'0'
|
|
FFFFFFFFFFFFF540.2 0DFBE000000 ret
|
|
FFFFFFFFFFFFF550.0 gthx5:
|
|
FFFFFFFFFFFFF550.0 2A040340041 bltui r1,#'A',gthx3
|
|
FFFFFFFFFFFFF550.1 2B840180046 bgtui r1,#'F',gthx6
|
|
FFFFFFFFFFFFF550.2 03842000041 subui r1,r1,#'A'
|
|
FFFFFFFFFFFFF560.0 0284200000A addui r1,r1,#10
|
|
FFFFFFFFFFFFF560.1 0DFBE000000 ret
|
|
FFFFFFFFFFFFF560.2 gthx6:
|
|
FFFFFFFFFFFFF560.2 2A040240061 bltui r1,#'a',gthx3
|
|
FFFFFFFFFFFFF570.0 2B840140066 bgtui r1,#'f',gthx3
|
|
FFFFFFFFFFFFF570.1 03842000061 subui r1,r1,#'a'
|
|
FFFFFFFFFFFFF570.2 0284200000A addui r1,r1,#10
|
|
FFFFFFFFFFFFF580.0 0DFBE000000 ret
|
|
FFFFFFFFFFFFF580.1 gthx3:
|
|
FFFFFFFFFFFFF580.1 0A1FFFFFFFF setlo r1,#-1 ; not a hex number
|
|
FFFFFFFFFFFFF580.2 0DFBE000000 ret
|
|
|
|
;==============================================================================
|
|
; Load an S19 format file
|
|
;==============================================================================
|
|
;
|
|
FFFFFFFFFFFFF590.0 LoadS19:
|
|
FFFFFFFFFFFFF590.0 2F80000008A bra ProcessRec
|
|
FFFFFFFFFFFFF590.1 NextRec:
|
|
FFFFFFFFFFFFF590.1 0C7FFFFFDFC call sGetChar
|
|
FFFFFFFFFFFFF590.2 2C84004000A bne r1,#LF,NextRec
|
|
FFFFFFFFFFFFF5A0.0 ProcessRec:
|
|
FFFFFFFFFFFFF5A0.0 0C7FFFFFDFC call sGetChar
|
|
FFFFFFFFFFFFF5A0.1 2C07CF8001A beqi r1,#26,Monitor ; CTRL-Z ?
|
|
FFFFFFFFFFFFF5A0.2 2C87FF40053 bnei r1,#'S',NextRec
|
|
FFFFFFFFFFFFF5B0.0 0C7FFFFFDFC call sGetChar
|
|
FFFFFFFFFFFFF5B0.1 2807FE40030 blt r1,#'0',NextRec
|
|
FFFFFFFFFFFFF5B0.2 2987FE40039 bgt r1,#'9',NextRec
|
|
FFFFFFFFFFFFF5C0.0 01040400009 or r4,r1,r0 ; r4 = record type
|
|
FFFFFFFFFFFFF5C0.1 0C7FFFFFDFC call sGetChar
|
|
FFFFFFFFFFFFF5C0.2 0C7FFFFFD4E call AsciiToHexNybble
|
|
FFFFFFFFFFFFF5D0.0 01040200009 or r2,r1,r0
|
|
FFFFFFFFFFFFF5D0.1 0C7FFFFFDFC call sGetChar
|
|
FFFFFFFFFFFFF5D0.2 0C7FFFFFD4E call AsciiToHexNybble
|
|
FFFFFFFFFFFFF5E0.0 01884200000 shli r2,r2,#4
|
|
FFFFFFFFFFFFF5E0.1 01082200009 or r2,r2,r1 ; r2 = byte count
|
|
FFFFFFFFFFFFF5E0.2 01082300009 or r3,r2,r1 ; r3 = byte count
|
|
FFFFFFFFFFFFF5F0.0 2C13FA40030 beqi r4,#'0',NextRec ; manufacturer ID record, ignore
|
|
FFFFFFFFFFFFF5F0.1 2C100A40031 beqi r4,#'1',ProcessS1
|
|
FFFFFFFFFFFFF5F0.2 2C100B00032 beqi r4,#'2',ProcessS2
|
|
FFFFFFFFFFFFF600.0 2C100A80033 beqi r4,#'3',ProcessS3
|
|
FFFFFFFFFFFFF600.1 2C13F940035 beqi r4,#'5',NextRec ; record count record, ignore
|
|
FFFFFFFFFFFFF600.2 2C100B40037 beqi r4,#'7',ProcessS7
|
|
FFFFFFFFFFFFF610.0 2C100B40038 beqi r4,#'8',ProcessS8
|
|
FFFFFFFFFFFFF610.1 2C100C40039 beqi r4,#'9',ProcessS9
|
|
FFFFFFFFFFFFF610.2 2F801FFFC2A bra NextRec
|
|
|
|
FFFFFFFFFFFFF620.0 pcssxa:
|
|
FFFFFFFFFFFFF620.0 050C60000FF andi r3,r3,#0xff
|
|
FFFFFFFFFFFFF620.1 038C6000001 subui r3,r3,#1 ; one less for loop
|
|
FFFFFFFFFFFFF620.2 pcss1a:
|
|
FFFFFFFFFFFFF620.2 0C7FFFFFDFC call sGetChar
|
|
FFFFFFFFFFFFF630.0 0C7FFFFFD4E call AsciiToHexNybble
|
|
FFFFFFFFFFFFF630.1 01884200000 shli r2,r2,#4
|
|
FFFFFFFFFFFFF630.2 01082200009 or r2,r2,r1
|
|
FFFFFFFFFFFFF640.0 0C7FFFFFDFC call sGetChar
|
|
FFFFFFFFFFFFF640.1 0C7FFFFFD4E call AsciiToHexNybble
|
|
FFFFFFFFFFFFF640.2 01884200000 shli r2,r2,#4
|
|
FFFFFFFFFFFFF650.0 01082200009 or r2,r2,r1
|
|
FFFFFFFFFFFFF650.1 18144000000 sb r2,[r5]
|
|
FFFFFFFFFFFFF650.2 0294A000001 addui r5,r5,#1
|
|
FFFFFFFFFFFFF660.0 2F807FFFE4F loop r3,pcss1a
|
|
; Get the checksum byte
|
|
FFFFFFFFFFFFF660.1 0C7FFFFFDFC call sGetChar
|
|
FFFFFFFFFFFFF660.2 0C7FFFFFD4E call AsciiToHexNybble
|
|
FFFFFFFFFFFFF670.0 01884200000 shli r2,r2,#4
|
|
FFFFFFFFFFFFF670.1 01082200009 or r2,r2,r1
|
|
FFFFFFFFFFFFF670.2 0C7FFFFFDFC call sGetChar
|
|
FFFFFFFFFFFFF680.0 0C7FFFFFD4E call AsciiToHexNybble
|
|
FFFFFFFFFFFFF680.1 01884200000 shli r2,r2,#4
|
|
FFFFFFFFFFFFF680.2 01082200009 or r2,r2,r1
|
|
FFFFFFFFFFFFF690.0 2F801FFF82A bra NextRec
|
|
|
|
FFFFFFFFFFFFF690.1 ProcessS1:
|
|
FFFFFFFFFFFFF690.1 0C7FFFFFDB9 call S19Get16BitAddress
|
|
FFFFFFFFFFFFF690.2 2F801FFFC8A bra pcssxa
|
|
FFFFFFFFFFFFF6A0.0 ProcessS2:
|
|
FFFFFFFFFFFFF6A0.0 0C7FFFFFDC1 call S19Get24BitAddress
|
|
FFFFFFFFFFFFF6A0.1 2F801FFFC0A bra pcssxa
|
|
FFFFFFFFFFFFF6A0.2 ProcessS3:
|
|
FFFFFFFFFFFFF6A0.2 0C7FFFFFDC9 call S19Get32BitAddress
|
|
FFFFFFFFFFFFF6B0.0 2F801FFFB8A bra pcssxa
|
|
FFFFFFFFFFFFF6B0.1 ProcessS7:
|
|
FFFFFFFFFFFFF6B0.1 0C7FFFFFDC9 call S19Get32BitAddress
|
|
FFFFFFFFFFFFF6B0.2 1980A000000 sw r5,S19StartAddress
|
|
FFFFFFFFFFFFF6C0.0 2F801FFDECA bra Monitor
|
|
FFFFFFFFFFFFF6C0.1 ProcessS8:
|
|
FFFFFFFFFFFFF6C0.1 0C7FFFFFDC1 call S19Get24BitAddress
|
|
FFFFFFFFFFFFF6C0.2 1980A000000 sw r5,S19StartAddress
|
|
FFFFFFFFFFFFF6D0.0 2F801FFDE4A bra Monitor
|
|
FFFFFFFFFFFFF6D0.1 ProcessS9:
|
|
FFFFFFFFFFFFF6D0.1 0C7FFFFFDB9 call S19Get16BitAddress
|
|
FFFFFFFFFFFFF6D0.2 1980A000000 sw r5,S19StartAddress
|
|
FFFFFFFFFFFFF6E0.0 2F801FFDDCA bra Monitor
|
|
|
|
FFFFFFFFFFFFF6E0.1 S19Get16BitAddress:
|
|
FFFFFFFFFFFFF6E0.1 03FBC000008 subui sp,sp,#8
|
|
FFFFFFFFFFFFF6E0.2 19FBE000000 sw r31,[sp]
|
|
FFFFFFFFFFFFF6F0.0 0C7FFFFFDFC call sGetChar
|
|
FFFFFFFFFFFFF6F0.1 0C7FFFFFD4E call AsciiToHexNybble
|
|
FFFFFFFFFFFFF6F0.2 01040200009 or r2,r1,r0
|
|
FFFFFFFFFFFFF700.0 2F8000004AA bra S1932b
|
|
|
|
FFFFFFFFFFFFF700.1 S19Get24BitAddress:
|
|
FFFFFFFFFFFFF700.1 03FBC000008 subui sp,sp,#8
|
|
FFFFFFFFFFFFF700.2 19FBE000000 sw r31,[sp]
|
|
FFFFFFFFFFFFF710.0 0C7FFFFFDFC call sGetChar
|
|
FFFFFFFFFFFFF710.1 0C7FFFFFD4E call AsciiToHexNybble
|
|
FFFFFFFFFFFFF710.2 01040200009 or r2,r1,r0
|
|
FFFFFFFFFFFFF720.0 2F80000024A bra S1932a
|
|
|
|
FFFFFFFFFFFFF720.1 S19Get32BitAddress:
|
|
FFFFFFFFFFFFF720.1 03FBC000008 subui sp,sp,#8
|
|
FFFFFFFFFFFFF720.2 19FBE000000 sw r31,[sp]
|
|
FFFFFFFFFFFFF730.0 0C7FFFFFDFC call sGetChar
|
|
FFFFFFFFFFFFF730.1 0C7FFFFFD4E call AsciiToHexNybble
|
|
FFFFFFFFFFFFF730.2 01040200009 or r2,r1,r0
|
|
FFFFFFFFFFFFF740.0 0C7FFFFFDFC call sGetChar
|
|
FFFFFFFFFFFFF740.1 0C7FFFFFD4E call AsciiToHexNybble
|
|
FFFFFFFFFFFFF740.2 01884200000 shli r2,r2,#4
|
|
FFFFFFFFFFFFF750.0 01044200009 or r2,r1,r2
|
|
FFFFFFFFFFFFF750.1 0C7FFFFFDFC call sGetChar
|
|
FFFFFFFFFFFFF750.2 0C7FFFFFD4E call AsciiToHexNybble
|
|
FFFFFFFFFFFFF760.0 01884200000 shli r2,r2,#4
|
|
FFFFFFFFFFFFF760.1 01082200009 or r2,r2,r1
|
|
FFFFFFFFFFFFF760.2 S1932a:
|
|
FFFFFFFFFFFFF760.2 0C7FFFFFDFC call sGetChar
|
|
FFFFFFFFFFFFF770.0 0C7FFFFFD4E call AsciiToHexNybble
|
|
FFFFFFFFFFFFF770.1 01884200000 shli r2,r2,#4
|
|
FFFFFFFFFFFFF770.2 01082200009 or r2,r2,r1
|
|
FFFFFFFFFFFFF780.0 0C7FFFFFDFC call sGetChar
|
|
FFFFFFFFFFFFF780.1 0C7FFFFFD4E call AsciiToHexNybble
|
|
FFFFFFFFFFFFF780.2 01884200000 shli r2,r2,#4
|
|
FFFFFFFFFFFFF790.0 01082200009 or r2,r2,r1
|
|
FFFFFFFFFFFFF790.1 S1932b:
|
|
FFFFFFFFFFFFF790.1 0C7FFFFFDFC call sGetChar
|
|
FFFFFFFFFFFFF790.2 0C7FFFFFD4E call AsciiToHexNybble
|
|
FFFFFFFFFFFFF7A0.0 01884200000 shli r2,r2,#4
|
|
FFFFFFFFFFFFF7A0.1 01082200009 or r2,r2,r1
|
|
FFFFFFFFFFFFF7A0.2 0C7FFFFFDFC call sGetChar
|
|
FFFFFFFFFFFFF7B0.0 0C7FFFFFD4E call AsciiToHexNybble
|
|
FFFFFFFFFFFFF7B0.1 01884200000 shli r2,r2,#4
|
|
FFFFFFFFFFFFF7B0.2 01082200009 or r2,r2,r1
|
|
FFFFFFFFFFFFF7C0.0 0C7FFFFFDFC call sGetChar
|
|
FFFFFFFFFFFFF7C0.1 0C7FFFFFD4E call AsciiToHexNybble
|
|
FFFFFFFFFFFFF7C0.2 01884200000 shli r2,r2,#4
|
|
FFFFFFFFFFFFF7D0.0 01082200009 or r2,r2,r1
|
|
FFFFFFFFFFFFF7D0.1 0110840000A xor r4,r4,r4
|
|
FFFFFFFFFFFFF7D0.2 01080500009 or r5,r2,r0
|
|
FFFFFFFFFFFFF7E0.0 11FBE000000 lw r31,[sp]
|
|
FFFFFFFFFFFFF7E0.1 02FBC000008 addui sp,sp,#8
|
|
FFFFFFFFFFFFF7E0.2 0DFBE000000 ret
|
|
|
|
;------------------------------------------------------------------------------
|
|
; Get a character from auxillary input, checking the keyboard status for a
|
|
; CTRL-C
|
|
;------------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFF7F0.0 sGetChar:
|
|
FFFFFFFFFFFFF7F0.0 03FBC000008 subui sp,sp,#8
|
|
FFFFFFFFFFFFF7F0.1 19FBE000000 sw r31,[sp]
|
|
FFFFFFFFFFFFF7F0.2 sgc2:
|
|
FFFFFFFFFFFFF7F0.2 0C7FFFFFAA6 call KeybdCheckForKey
|
|
FFFFFFFFFFFFF800.0 2F841FF8B08 beq r1,r0,sgc1
|
|
FFFFFFFFFFFFF800.1 0C7FFFFFA92 call KeybdGetchar
|
|
FFFFFFFFFFFFF800.2 2C07A980000 beqi r1,#CRTLC,Monitor
|
|
FFFFFFFFFFFFF810.0 sgc1:
|
|
FFFFFFFFFFFFF810.0 0C7FFFFFE30 call AUXIN
|
|
FFFFFFFFFFFFF810.1 2F841FFFF48 beq r1,r0,sgc2
|
|
FFFFFFFFFFFFF810.2 11FBE000000 lw r31,[sp]
|
|
FFFFFFFFFFFFF820.0 02FBC000008 addui sp,sp,#8
|
|
FFFFFFFFFFFFF820.1 0DFBE000000 ret
|
|
|
|
;--------------------------------------------------------------------------
|
|
; Sound a 800 Hz beep
|
|
;--------------------------------------------------------------------------
|
|
;
|
|
FFFFFFFFFFFFF820.2 SetupAC97:
|
|
FFFFFFFFFFFFF820.2 05802000000 ori r1,r0,#0 ; trigger a read of register 26
|
|
FFFFFFFFFFFFF830.0 18803DC1026 sc r1,AC97+0x26
|
|
FFFFFFFFFFFFF830.1 sac971: ; wait for status to register 0xF (all ready)
|
|
FFFFFFFFFFFFF830.1 10803DC1026 lc r1,AC97+0x26
|
|
FFFFFFFFFFFFF830.2 2C84004000F bnei r1,#0x0F,sac971
|
|
FFFFFFFFFFFFF840.0 05802000000 ori r1,r0,#0 ; master volume, 0db attenuation, mute off
|
|
FFFFFFFFFFFFF840.1 18803DC1002 sc r1,AC97+2
|
|
FFFFFFFFFFFFF840.2 18803DC1004 sc r1,AC97+4 ; headphone volume, 0db attenuation, mute off
|
|
FFFFFFFFFFFFF850.0 05802001F40 ori r1,r0,#8000 ; wait a while for the settings to take effect
|
|
FFFFFFFFFFFFF850.1 sac972:
|
|
FFFFFFFFFFFFF850.1 2F80200002F loop r1,sac972
|
|
|
|
FFFFFFFFFFFFF850.2 Beep:
|
|
FFFFFFFFFFFFF850.2 0580200000F ori r1,r0,#15 ; master volume to max
|
|
FFFFFFFFFFFFF860.0 18803D50080 sc r1,PSG+128
|
|
FFFFFFFFFFFFF860.1 0580200346E ori r1,r0,#13422 ; 800Hz
|
|
FFFFFFFFFFFFF860.2 18803D50000 sc r1,PSG
|
|
FFFFFFFFFFFFF870.0 05802000020 ori r1,r0,#32 ; attack (8.192 ms)
|
|
FFFFFFFFFFFFF870.1 18803D50008 sc r1,PSG+8
|
|
FFFFFFFFFFFFF870.2 05802000040 ori r1,r0,#64 ; decay (16.384 ms)
|
|
FFFFFFFFFFFFF880.0 18803D5000A sc r1,PSG+10
|
|
FFFFFFFFFFFFF880.1 058020000C0 ori r1,r0,#0xC0 ; sustain level
|
|
FFFFFFFFFFFFF880.2 18803D5000C sc r1,PSG+12
|
|
FFFFFFFFFFFFF890.0 05802000FA0 ori r1,r0,#4000 ; release (1.024 s)
|
|
FFFFFFFFFFFFF890.1 18803D5000E sc r1,PSG+14
|
|
FFFFFFFFFFFFF890.2 05802001104 ori r1,r0,#0x1104 ; gate, output enable, triangle waveform
|
|
FFFFFFFFFFFFF8A0.0 18803D50004 sc r1,PSG+4
|
|
FFFFFFFFFFFFF8A0.1 38000000000
|
|
FFFFFFFFFFFFF8A0.2 058037D7840 ori r1,r0,#25000000 ; delay about 1s
|
|
FFFFFFFFFFFFF8B0.0 beep1:
|
|
FFFFFFFFFFFFF8B0.0 2F80200000F loop r1,beep1
|
|
FFFFFFFFFFFFF8B0.1 05802000000 ori r1,r0,#0x0000 ; gate off, output enable off, no waveform
|
|
FFFFFFFFFFFFF8B0.2 0DFBE000000 ret
|
|
|
|
;*
|
|
;* ===== Input a character from the host into register D0 (or
|
|
;* return Zero status if there's no character available).
|
|
;*
|
|
FFFFFFFFFFFFF8C0.0 AUXIN:
|
|
FFFFFFFFFFFFF8C0.0 20003DC0A01 inb r1,UART_LS ; is character ready ?
|
|
FFFFFFFFFFFFF8C0.1 05042000001 andi r1,r1,#rxfull
|
|
FFFFFFFFFFFFF8C0.2 2F8400000C8 beq r1,r0,AXIRET ;if not, return Zero status
|
|
FFFFFFFFFFFFF8D0.0 20003DC0A00 inb r1,UART ; else get the character
|
|
FFFFFFFFFFFFF8D0.1 0504200007F andi r1,r1,#0x7f ;zero out the high bit
|
|
FFFFFFFFFFFFF8D0.2 AXIRET:
|
|
FFFFFFFFFFFFF8D0.2 0DFBE000000 ret
|
|
|
|
;*
|
|
;* ===== Return to the resident monitor, operating system, etc.
|
|
;*
|
|
FFFFFFFFFFFFF8E0.0 BYEBYE:
|
|
FFFFFFFFFFFFF8E0.0 0CFFFFFFCA6 jmp Monitor
|
|
; MOVE.B #228,D7 ;return to Tutor
|
|
; TRAP #14
|
|
|
|
FFFFFFFFFFFFF8E0.1 37800000000 align 16
|
|
FFFFFFFFFFFFF8E0.2 37800000000 align 16
|
|
FFFFFFFFFFFFF8F0.0 align 16
|
|
FFFFFFFFFFFFF8F0 726F747061520A0D msgInit db CR,LF,"Raptor64 Tiny BASIC v1.0",CR,LF,"(C) 2012 Robert Finch",CR,LF,LF,0
|
|
FFFFFFFFFFFFF8F8 20796E6954203436
|
|
FFFFFFFFFFFFF900 3176204349534142
|
|
FFFFFFFFFFFFF908 202943280A0D302E
|
|
FFFFFFFFFFFFF910 6F52202032313032
|
|
FFFFFFFFFFFFF918 6E69462074726562
|
|
FFFFFFFFFFFFF920 0A0D000A0A0D6863 OKMSG db CR,LF,"OK",CR,LF,0
|
|
FFFFFFFFFFFFF928 616857000A0D4B4F msgWhat db "What?",CR,LF,0
|
|
FFFFFFFFFFFFF930 726F53000A0D3F74 SRYMSG db "Sorry."
|
|
FFFFFFFFFFFFF938 6F43000A0D2E7972 msgReadError db "Compact FLASH read error",CR,LF,0
|
|
FFFFFFFFFFFFF940 4C4620746361706D
|
|
FFFFFFFFFFFFF948 6461657220485341
|
|
FFFFFFFFFFFFF950 0A0D726F72726520
|
|
FFFFFFFFFFFFF958 207265626D754E00 msgNumTooBig db "Number is too big",CR,LF,0
|
|
FFFFFFFFFFFFF960 62206F6F74207369
|
|
FFFFFFFFFFFFF968 766944000A0D6769 msgDivZero db "Division by zero",CR,LF,0
|
|
FFFFFFFFFFFFF970 7962206E6F697369
|
|
FFFFFFFFFFFFF978 000A0D6F72657A20
|
|
FFFFFFFFFFFFF980 7620666F2074754F msgVarSpace db "Out of variable space",CR,LF,0
|
|
FFFFFFFFFFFFF988 20656C6261697261
|
|
FFFFFFFFFFFFF990 000A0D6563617073
|
|
FFFFFFFFFFFFF998 6620736574796220 msgBytesFree db " bytes free",CR,LF,0
|
|
FFFFFFFFFFFFF9A0 0A0D000A0D656572 msgReady db CR,LF,"Ready",CR,LF,0
|
|
FFFFFFFFFFFFF9A8 000A0D7964616552
|
|
FFFFFFFFFFFFF9B0 6E69746365707845 msgComma db "Expecting a comma",CR,LF,0
|
|
FFFFFFFFFFFFF9B8 6D6D6F6320612067
|
|
FFFFFFFFFFFFF9C0 656E694C000A0D61 msgLineRange db "Line number too big",CR,LF,0
|
|
FFFFFFFFFFFFF9C8 207265626D756E20
|
|
FFFFFFFFFFFFF9D0 0D676962206F6F74
|
|
FFFFFFFFFFFFF9D8 746365707845000A msgVar db "Expecting a variable",CR,LF,0
|
|
FFFFFFFFFFFFF9E0 6176206120676E69
|
|
FFFFFFFFFFFFF9E8 0A0D656C62616972
|
|
FFFFFFFFFFFFF9F0 64616220444E5200 msgRNDBad db "RND bad parameter",CR,LF,0
|
|
FFFFFFFFFFFFF9F8 74656D6172617020
|
|
FFFFFFFFFFFFFA00 535953000A0D7265 msgSYSBad db "SYS bad address",CR,LF,0
|
|
FFFFFFFFFFFFFA08 6464612064616220
|
|
FFFFFFFFFFFFFA10 49000A0D73736572 msgInputVar db "INPUT expecting a variable",CR,LF,0
|
|
FFFFFFFFFFFFFA18 707865205455504E
|
|
FFFFFFFFFFFFFA20 6120676E69746365
|
|
FFFFFFFFFFFFFA28 6C62616972617620
|
|
FFFFFFFFFFFFFA30 5458454E000A0D65 msgNextFor db "NEXT without FOR",CR,LF,0
|
|
FFFFFFFFFFFFFA38 74756F6874697720
|
|
FFFFFFFFFFFFFA40 4E000A0D524F4620 msgNextVar db "NEXT expecting a defined variable",CR,LF,0
|
|
FFFFFFFFFFFFFA48 6570786520545845
|
|
FFFFFFFFFFFFFA50 206120676E697463
|
|
FFFFFFFFFFFFFA58 2064656E69666564
|
|
FFFFFFFFFFFFFA60 656C626169726176
|
|
FFFFFFFFFFFFFA68 2F4F544F47000A0D msgBadGotoGosub db "GOTO/GOSUB bad line number",CR,LF,0
|
|
FFFFFFFFFFFFFA70 6162204255534F47
|
|
FFFFFFFFFFFFFA78 6E20656E696C2064
|
|
FFFFFFFFFFFFFA80 000A0D7265626D75
|
|
FFFFFFFFFFFFFA88 77204E5255544552 msgRetWoGosub db "RETURN without GOSUB",CR,LF,0
|
|
FFFFFFFFFFFFFA90 472074756F687469
|
|
FFFFFFFFFFFFFA98 50000A0D4255534F msgTooBig db "Program is too big",CR,LF,0
|
|
FFFFFFFFFFFFFAA0 69206D6172676F72
|
|
FFFFFFFFFFFFFAA8 6962206F6F742073
|
|
FFFFFFFFFFFFFAB0 72747845000A0D67 msgExtraChars db "Extra characters on line ignored",CR,LF,0
|
|
FFFFFFFFFFFFFAB8 6361726168632061
|
|
FFFFFFFFFFFFFAC0 206E6F2073726574
|
|
FFFFFFFFFFFFFAC8 6E676920656E696C
|
|
|
|
FFFFFFFFFFFFFAD7.0 INITMSG:
|
|
FFFFFFFFFFFFFAD0 0D000A0D6465726F db CR,LF,'Raptor64 Tiny BASIC, v1.0',CR,LF,LF,0
|
|
FFFFFFFFFFFFFADF.0 OKMSG:
|
|
FFFFFFFFFFFFFAD8 0D000A0A0D00520A db CR,LF,'OK',CR,LF,0
|
|
FFFFFFFFFFFFFAE6.0 HOWMSG:
|
|
FFFFFFFFFFFFFAE0 0048000A0D004F0A db 'How?',CR,LF,0
|
|
FFFFFFFFFFFFFAEB.0 WHTMSG:
|
|
FFFFFFFFFFFFFAE8 000A0D0057000A0D db 'What?',CR,LF,0
|
|
FFFFFFFFFFFFFAF0.0 SRYMSG:
|
|
FFFFFFFFFFFFFAF2.0 CLMSG:
|
|
; DC.B 0 ;<- for aligning on a word boundary
|
|
FFFFFFFFFFFFFAF0 000000000A0D0053 align 16
|
|
FFFFFFFFFFFFFAF8 0000000000000000
|
|
FFFFFFFFFFFFFB00.0 align 16
|
|
|
|
LSTROM EQU $
|
|
; end of possible ROM area
|
|
|
|
0000000000000110 bss
|
|
0000000000000110 align 16
|
|
|
|
0000000000000080 org 0x0080
|
|
0000000000000088 align 8
|
|
0000000000000088 0000000000000001 OSSP dw 1 ; OS value of sp
|
|
0000000000000090 0000000000000001 CURRNT dw 1 ; Current line pointer
|
|
0000000000000098 0000000000000001 STKGOS dw 1 ; Saves stack pointer in 'GOSUB'
|
|
00000000000000A0 0000000000000001 STKINP dw 1 ; Saves stack pointer during 'INPUT'
|
|
00000000000000A8 0000000000000001 LOPVAR dw 1 ; 'FOR' loop save area
|
|
00000000000000B0 0000000000000001 LOPINC dw 1 ; increment
|
|
00000000000000B8 0000000000000001 LOPLMT dw 1 ; limit
|
|
00000000000000C0 0000000000000001 LOPLN dw 1 ; line number
|
|
00000000000000C8 0000000000000001 LOPPT dw 1 ; text pointer
|
|
00000000000000D0 0000000000000001 TXTUNF dw 1 ; points to unfilled text area
|
|
00000000000000D8 0000000000000001 VARBGN dw 1 ; points to variable area
|
|
00000000000000E0 0000000000000001 IVARBGN dw 1 ; points to integer variable area
|
|
00000000000000E8 0000000000000001 SVARBGN dw 1 ; points to string variable area
|
|
00000000000000F0 0000000000000001 FVARBGN dw 1 ; points to float variable area
|
|
00000000000000F8 0000000000000001 STKBOT dw 1 ; holds lower limit for stack growth
|
|
FF 0000000000000000 NUMWKA fill.b 12,0 ; numeric work area
|
|
107 00000000000000
|
|
107 0000000000000000 BUFFER fill.b BUFLEN,0x00 ; Keyboard input buffer
|
|
10F 00
|
|
|
FFFFFFFFFFFFF000.0 org 0xFFFF_FFFF_FFFF_F000
|
|
FFFFFFFFFFFFF000.0 start:
|
|
FFFFFFFFFFFFF000.0 048020013FD ori r1,r0,#5117 ; test data
|
|
FFFFFFFFFFFFF000.1 00848000018 sqrt r4,r1
|
|
FFFFFFFFFFFFF000.2 00848000018 sqrt r4,r1
|
|
FFFFFFFFFFFFF010.0 0480400042B ori r2,r0,#1067
|
|
FFFFFFFFFFFFF010.1 01044500018 mulu r5,r1,r2
|
|
FFFFFFFFFFFFF010.2 04803D00000 ori r1,r0,#0xFFFF_FFFF_FFD0_0000
|
|
FFFFFFFFFFFFF020.0 04804000032 ori r2,r0,#0x32
|
|
FFFFFFFFFFFFF020.1 0480600064C ori r3,r0,#1612
|
|
FFFFFFFFFFFFF020.2 j1:
|
|
FFFFFFFFFFFFF020.2 18844000000 sc r2,[r1]
|
|
FFFFFFFFFFFFF030.0 02042000002 addi r1,r1,#2
|
|
FFFFFFFFFFFFF030.1 028C6000001 subi r3,r3,#1
|
|
FFFFFFFFFFFFF030.2 288C1FFFFFE bne r3,r0,j1
|
|
FFFFFFFFFFFFF040.0 0C7FFFFFC16 call Getkey
|
|
FFFFFFFFFFFFF040.1 37800000000 nop
|
|
FFFFFFFFFFFFF040.2 37800000000 nop
|
|
FFFFFFFFFFFFF050.0 37800000000 nop
|
|
FFFFFFFFFFFFF050.1 37800000000 nop
|
|
|
|
FFFFFFFFFFFFF050.2 Getkey:
|
|
FFFFFFFFFFFFF050.2 04803DC0000 ori r1,r0,#0xFFFF_FFFF_FFDC_0000
|
|
FFFFFFFFFFFFF060.0 sr1:
|
|
FFFFFFFFFFFFF060.0 10044000000 lb r2,[r1]
|
|
FFFFFFFFFFFFF060.1 2A880000000 bge r2,r0,sr1
|
|
FFFFFFFFFFFFF060.2 10040000001 lb r0,1[r1] ; clear keyboard strobe
|
|
FFFFFFFFFFFFF070.0 0D83E000000 ret
|
|
|
|
;==============================================================================
|
;==============================================================================
|
; Checkerboard RAM tester
|
; Checkerboard RAM tester
|
;==============================================================================
|
;==============================================================================
|
;
|
;
|
FFFFFFFFFFFFF070.1 ramtest:
|
FFFFFFFFFFFFFB00.0 code
|
FFFFFFFFFFFFF070.1 01000800009 or r8,r0,r0 ; r8 = 0
|
FFFFFFFFFFFFFB00.0 align 16
|
FFFFFFFFFFFFF070.2 3D5552AAAD5
|
FFFFFFFFFFFFFB00.0 ramtest:
|
FFFFFFFFFFFFF080.0 04802AA5555 ori r1,r0,#0xAAAA5555AAAA5555 ; checkerboard pattern
|
FFFFFFFFFFFFFB00.0 01000800009 or r8,r0,r0 ; r8 = 0
|
FFFFFFFFFFFFF080.1 ramtest2:
|
FFFFFFFFFFFFFB00.1 3D5552AAAD5
|
FFFFFFFFFFFFF080.1 19A02000000 sw r1,[r8] ; save the checkerboard to memory
|
FFFFFFFFFFFFFB00.2 05802AA5555 ori r1,r0,#0xAAAA5555AAAA5555 ; checkerboard pattern
|
FFFFFFFFFFFFF080.2 11A04000000 lw r2,[r8] ; read it back
|
FFFFFFFFFFFFFB10.0 ramtest2:
|
FFFFFFFFFFFFF090.0 01044300006 cmp r3,r1,r2 ; is it the same ?
|
FFFFFFFFFFFFFB10.0 19A02000000 sw r1,[r8] ; save the checkerboard to memory
|
FFFFFFFFFFFFF090.1 080C2000008 bnez r3,r0,ramtest1
|
FFFFFFFFFFFFFB10.1 11A04000000 lw r2,[r8] ; read it back
|
FFFFFFFFFFFFF090.2 02210000008 addi r8,r8,#8 ; increment RAM pointer
|
FFFFFFFFFFFFFB10.2 01044300006 cmp r3,r1,r2 ; is it the same ?
|
FFFFFFFFFFFFF0A0.0 38000000000
|
FFFFFFFFFFFFFB20.0 2F8C00000C9 bne r3,r0,ramtest1
|
FFFFFFFFFFFFF0A0.1 03207000000 cmpi r3,r8,#0x0000_0000_0100_0000
|
FFFFFFFFFFFFFB20.1 02A10000008 addui r8,r8,#8 ; increment RAM pointer
|
FFFFFFFFFFFFF0A0.2 080C5FFFFF9 bltz r3,r0,ramtest2
|
FFFFFFFFFFFFFB20.2 38000000002
|
FFFFFFFFFFFFF0B0.0 ramtest1:
|
FFFFFFFFFFFFFB30.0 04206000000 cmpi r3,r8,#0x0000_0000_0400_0000
|
FFFFFFFFFFFFF0B0.0 01200A00009 or r10,r8,r0 ; r10 = max ram address
|
FFFFFFFFFFFFFB30.1 2F8C1FFFF00 blt r3,r0,ramtest2
|
|
FFFFFFFFFFFFFB30.2 ramtest1:
|
|
FFFFFFFFFFFFFB30.2 01200A00009 or r10,r8,r0 ; r10 = max ram address
|
; readback the checkerboard pattern
|
; readback the checkerboard pattern
|
FFFFFFFFFFFFF0B0.1 01000800009 or r8,r0,r0 ; r8 = 0
|
FFFFFFFFFFFFFB40.0 01000800009 or r8,r0,r0 ; r8 = 0
|
FFFFFFFFFFFFF0B0.2 ramtest4:
|
FFFFFFFFFFFFFB40.1 ramtest4:
|
FFFFFFFFFFFFF0B0.2 11A04000000 lw r2,[r8]
|
FFFFFFFFFFFFFB40.1 11A04000000 lw r2,[r8]
|
FFFFFFFFFFFFF0C0.0 3D5552AAAD5
|
FFFFFFFFFFFFFB40.2 3D5552AAAD5
|
FFFFFFFFFFFFF0C0.1 03086AA5555 cmpi r3,r2,#0xAAAA5555AAAA5555
|
FFFFFFFFFFFFFB50.0 04086AA5555 cmpi r3,r2,#0xAAAA5555AAAA5555
|
FFFFFFFFFFFFF0C0.2 080C2000009 bnez r3,r0,ramtest3
|
FFFFFFFFFFFFFB50.1 2F8C0000109 bne r3,r0,ramtest3
|
FFFFFFFFFFFFF0D0.0 02210000008 addi r8,r8,#8
|
FFFFFFFFFFFFFB50.2 02210000008 addi r8,r8,#8
|
FFFFFFFFFFFFF0D0.1 38000000000
|
FFFFFFFFFFFFFB60.0 38000000000
|
FFFFFFFFFFFFF0D0.2 03207000000 cmpi r3,r8,#0x0000_0000_0100_0000
|
FFFFFFFFFFFFFB60.1 04207000000 cmpi r3,r8,#0x0000_0000_0100_0000
|
FFFFFFFFFFFFF0E0.0 080C5FFFFF6 bltz r3,r0,ramtest4
|
FFFFFFFFFFFFFB60.2 2F8C1FFFF20 blt r3,r0,ramtest4
|
FFFFFFFFFFFFF0E0.1 ramtest3:
|
FFFFFFFFFFFFFB70.0 ramtest3:
|
FFFFFFFFFFFFF0E0.1 28A1400001E bne r8,r10,ramtest8 ; check for equal maximum address
|
FFFFFFFFFFFFFB70.0 2FA140003A9 bne r8,r10,ramtest8 ; check for equal maximum address
|
|
|
; perform ramtest again with inverted checkerboard
|
; perform ramtest again with inverted checkerboard
|
FFFFFFFFFFFFF0E0.2 01000800009 or r8,r0,r0 ; r8 = 0
|
FFFFFFFFFFFFFB70.1 01000800009 or r8,r0,r0 ; r8 = 0
|
FFFFFFFFFFFFF0F0.0 3AAAAD5552A
|
FFFFFFFFFFFFFB70.2 3AAAAD5552A
|
FFFFFFFFFFFFF0F0.1 0480355AAAA ori r1,r0,#0x5555AAAA5555AAAA
|
FFFFFFFFFFFFFB80.0 0580355AAAA ori r1,r0,#0x5555AAAA5555AAAA
|
FFFFFFFFFFFFF0F0.2 ramtest5:
|
FFFFFFFFFFFFFB80.1 ramtest5:
|
FFFFFFFFFFFFF0F0.2 19A02000000 sw r1,[r8]
|
FFFFFFFFFFFFFB80.1 19A02000000 sw r1,[r8]
|
FFFFFFFFFFFFF100.0 11A04000000 lw r2,[r8]
|
FFFFFFFFFFFFFB80.2 11A04000000 lw r2,[r8]
|
FFFFFFFFFFFFF100.1 01044300006 cmp r3,r1,r2
|
FFFFFFFFFFFFFB90.0 01044300006 cmp r3,r1,r2
|
FFFFFFFFFFFFF100.2 080C2000009 bnez r3,r0,ramtest6
|
FFFFFFFFFFFFFB90.1 2F8C0000109 bne r3,r0,ramtest6
|
FFFFFFFFFFFFF110.0 02210000008 addi r8,r8,#8
|
FFFFFFFFFFFFFB90.2 02210000008 addi r8,r8,#8
|
FFFFFFFFFFFFF110.1 38000000000
|
FFFFFFFFFFFFFBA0.0 38000000000
|
FFFFFFFFFFFFF110.2 03207000000 cmpi r3,r8,#0x0000_0000_0100_0000
|
FFFFFFFFFFFFFBA0.1 04207000000 cmpi r3,r8,#0x0000_0000_0100_0000
|
FFFFFFFFFFFFF120.0 080C5FFFFF6 bltz r3,r0,ramtest5
|
FFFFFFFFFFFFFBA0.2 2F8C1FFFF20 blt r3,r0,ramtest5
|
FFFFFFFFFFFFF120.1 ramtest6:
|
FFFFFFFFFFFFFBB0.0 ramtest6:
|
FFFFFFFFFFFFF120.1 01200B00009 or r11,r8,r0 ; r11 = max ram address
|
FFFFFFFFFFFFFBB0.0 01200B00009 or r11,r8,r0 ; r11 = max ram address
|
; readback checkerboard
|
; readback checkerboard
|
FFFFFFFFFFFFF120.2 01000800009 or r8,r0,r0
|
FFFFFFFFFFFFFBB0.1 01000800009 or r8,r0,r0
|
FFFFFFFFFFFFF130.0 ramtest7:
|
FFFFFFFFFFFFFBB0.2 ramtest7:
|
FFFFFFFFFFFFF130.0 11A04000000 lw r2,[r8]
|
FFFFFFFFFFFFFBB0.2 11A04000000 lw r2,[r8]
|
FFFFFFFFFFFFF130.1 3AAAAD5552A
|
FFFFFFFFFFFFFBC0.0 3AAAAD5552A
|
FFFFFFFFFFFFF130.2 0308755AAAA cmpi r3,r2,#0x5555AAAA5555AAAA
|
FFFFFFFFFFFFFBC0.1 0408755AAAA cmpi r3,r2,#0x5555AAAA5555AAAA
|
FFFFFFFFFFFFF140.0 080C2000006 bnez r3,r0,ramtest8
|
FFFFFFFFFFFFFBC0.2 2F8C0000129 bne r3,r0,ramtest8
|
FFFFFFFFFFFFF140.1 02210000008 addi r8,r8,#8
|
FFFFFFFFFFFFFBD0.0 02210000008 addi r8,r8,#8
|
FFFFFFFFFFFFF140.2 38000000000
|
FFFFFFFFFFFFFBD0.1 38000000000
|
FFFFFFFFFFFFF150.0 03207000000 cmpi r3,r8,#0x0000_0000_0100_0000
|
FFFFFFFFFFFFFBD0.2 04207000000 cmpi r3,r8,#0x0000_0000_0100_0000
|
FFFFFFFFFFFFF150.1 080C5FFFFF8 bltz r3,r0,ramtest7
|
FFFFFFFFFFFFFBE0.0 2F8C1FFFEC0 blt r3,r0,ramtest7
|
FFFFFFFFFFFFF150.2 ramtest8:
|
FFFFFFFFFFFFFBE0.1 ramtest8:
|
FFFFFFFFFFFFF150.2 28216000005 beq r8,r11,ramtest9
|
FFFFFFFFFFFFFBE0.1 2FA16000088 beq r8,r11,ramtest9
|
FFFFFFFFFFFFF160.0 01216800014 min r8,r8,r11
|
FFFFFFFFFFFFFBE0.2 01216800014 min r8,r8,r11
|
FFFFFFFFFFFFF160.1 ramtest9:
|
FFFFFFFFFFFFFBF0.0 ramtest9:
|
FFFFFFFFFFFFF160.1 28214000004 beq r8,r10,ramtest10
|
FFFFFFFFFFFFFBF0.0 2FA14000048 beq r8,r10,ramtest10
|
FFFFFFFFFFFFF160.2 01214800014 min r8,r8,r10
|
FFFFFFFFFFFFFBF0.1 01214800014 min r8,r8,r10
|
FFFFFFFFFFFFF170.0 ramtest10:
|
FFFFFFFFFFFFFBF0.2 ramtest10:
|
FFFFFFFFFFFFF170.0 19810000400 sw r8,0x00000400 ;memend
|
FFFFFFFFFFFFFBF0.2 19810000400 sw r8,0x00000400 ;memend
|
|
FFFFFFFFFFFFFC00.0 0DFBE000000 ret
|
|
|
|
;-------------------------------------------
|
|
; IRQ routine
|
|
;-------------------------------------------
|
|
FFFFFFFFFFFFFC00.1 irqrout:
|
|
FFFFFFFFFFFFFC00.1 03FBC000010 subui sp,sp,#16
|
|
FFFFFFFFFFFFFC00.2 27F40000001 sm [sp],r1/lr
|
|
FFFFFFFFFFFFFC10.0 20803DC0FF0 inch r1,PIC
|
|
FFFFFFFFFFFFFC10.1 2C06C140001 beqi r1,#1,ColdStart
|
|
FFFFFFFFFFFFFC10.2 irqrout3:
|
|
FFFFFFFFFFFFFC10.2 2C840180002 bnei r1,#2,irqrout2
|
|
FFFFFFFFFFFFFC20.0 0C7FFFFFACC call Pulse1000
|
|
FFFFFFFFFFFFFC20.1 2F8000000AA bra irqrout1
|
|
FFFFFFFFFFFFFC20.2 irqrout2:
|
|
FFFFFFFFFFFFFC20.2 2C84014000F bnei r1,#15,irqrout1
|
|
FFFFFFFFFFFFFC30.0 0C7FFFFFA75 call KeybdIRQ
|
|
FFFFFFFFFFFFFC30.1 irqrout1:
|
|
FFFFFFFFFFFFFC30.1 27740000001 lm [sp],r1/lr
|
|
FFFFFFFFFFFFFC30.2 02FBC000010 addui sp,sp,#16
|
|
FFFFFFFFFFFFFC40.0 00000000020 iret
|
|
|
|
;-------------------------------------------
|
|
; NMI routine
|
|
;-------------------------------------------
|
|
FFFFFFFFFFFFFC40.1 nmirout:
|
|
FFFFFFFFFFFFFC40.1 00000000020 iret
|
|
|
|
;-------------------------------------------
|
|
; Handle miss on Data TLB
|
|
;-------------------------------------------
|
|
FFFFFFFFFFFFFC40.2 DTLBHandler:
|
|
FFFFFFFFFFFFFC40.2 19803FF0000 sw r1,0xFFFF_FFFF_FFFF_0000
|
|
FFFFFFFFFFFFFC50.0 19805FF0008 sw r2,0xFFFF_FFFF_FFFF_0008
|
|
FFFFFFFFFFFFFC50.1 dh1:
|
|
FFFFFFFFFFFFFC50.1 00802000034 omgi r1,#0 ; try open mutex gate #0 (TLB protector)
|
|
FFFFFFFFFFFFFC50.2 2F840000029 bne r1,r0,dh1 ; spinlock if gate is closed
|
|
FFFFFFFFFFFFFC60.0 00802000228 mfspr r1,PTA ; get the page table address
|
|
FFFFFFFFFFFFFC60.1 00804000428 mfspr r2,BadVAddr ; get the bad virtual address
|
|
FFFFFFFFFFFFFC60.2 008800005A9 mtspr TLBVirtPage,r2 ; which virtual address to update
|
|
FFFFFFFFFFFFFC70.0 01884680001 shrui r2,r2,#13 ; turn va into index
|
|
FFFFFFFFFFFFFC70.1 01044100003 addu r1,r1,r2
|
|
FFFFFFFFFFFFFC70.2 11844000000 lw r2,[r1] ; get the physical address from the table
|
|
FFFFFFFFFFFFFC80.0 05084000000 and r2,r2,#FFFF_FFFF_FFFF_E000 ; mask off lower bits
|
|
FFFFFFFFFFFFFC80.1 00880000529 mtspr TLBPhysPage0,r2 ;
|
|
FFFFFFFFFFFFFC80.2 11844000008 lw r2,8[r1] ; get the physical address from the table
|
|
FFFFFFFFFFFFFC90.0 05084000000 and r2,r2,#FFFF_FFFF_FFFF_E000 ; mask off lower bits
|
|
FFFFFFFFFFFFFC90.1 008800005A9 mtspr TLBPhysPage1,r2 ;
|
|
FFFFFFFFFFFFFC90.2 00800000034 tlbwr ; update a random entry in the TLB
|
|
FFFFFFFFFFFFFCA0.0 00800000035 cmgi #0 ; close the mutex gate
|
|
FFFFFFFFFFFFFCA0.1 11803FF0000 lw r1,0xFFFF_FFFF_FFFF_0000
|
|
FFFFFFFFFFFFFCA0.2 11805FF0008 lw r2,0xFFFF_FFFF_FFFF_0008
|
|
FFFFFFFFFFFFFCB0.0 00000000020 iret
|
|
FFFFFFFFFFFFFCB0.1 37800000000 nop
|
|
FFFFFFFFFFFFFCB0.2 37800000000 nop
|
|
|
|
FFFFFFFFFFFFFFB0.0 org 0xFFFF_FFFF_FFFF_FFB0
|
|
FFFFFFFFFFFFFFB0.0 0CFFFFFFF12 jmp DTLBHandler
|
|
FFFFFFFFFFFFFFB0.1 37800000000 nop
|
|
FFFFFFFFFFFFFFB0.2 37800000000 nop
|
FFFFFFFFFFFFFFC0.0 org 0xFFFF_FFFF_FFFF_FFC0
|
FFFFFFFFFFFFFFC0.0 org 0xFFFF_FFFF_FFFF_FFC0
|
FFFFFFFFFFFFFFC0.0 37800000000 nop
|
FFFFFFFFFFFFFFC0.0 0CFFFFFFF12 jmp DTLBHandler
|
FFFFFFFFFFFFFFC0.1 37800000000 nop
|
FFFFFFFFFFFFFFC0.1 37800000000 nop
|
FFFFFFFFFFFFFFC0.2 37800000000 nop
|
FFFFFFFFFFFFFFC0.2 37800000000 nop
|
FFFFFFFFFFFFFFD0.0 37800000000 nop
|
FFFFFFFFFFFFFFD0.0 org 0xFFFF_FFFF_FFFF_FFD0
|
|
FFFFFFFFFFFFFFD0.0 0CFFFFFFF01 jmp irqrout
|
FFFFFFFFFFFFFFD0.1 37800000000 nop
|
FFFFFFFFFFFFFFD0.1 37800000000 nop
|
FFFFFFFFFFFFFFD0.2 37800000000 nop
|
FFFFFFFFFFFFFFD0.2 37800000000 nop
|
FFFFFFFFFFFFFFE0.0 37800000000 nop
|
FFFFFFFFFFFFFFE0.0 org 0xFFFF_FFFF_FFFF_FFE0
|
|
FFFFFFFFFFFFFFE0.0 0CFFFFFFF11 jmp nmirout
|
FFFFFFFFFFFFFFE0.1 37800000000 nop
|
FFFFFFFFFFFFFFE0.1 37800000000 nop
|
FFFFFFFFFFFFFFE0.2 37800000000 nop
|
FFFFFFFFFFFFFFE0.2 37800000000 nop
|
FFFFFFFFFFFFFFF0.0 org 0xFFFF_FFFF_FFFF_FFF0
|
FFFFFFFFFFFFFFF0.0 org 0xFFFF_FFFF_FFFF_FFF0
|
FFFFFFFFFFFFFFF0.0 0CFFFFFFC00 jmp start
|
FFFFFFFFFFFFFFF0.0 0CFFFFFFA09 jmp start
|
|
FFFFFFFFFFFFFFF0.1 37800000000 nop
|
|
FFFFFFFFFFFFFFF0.2 37800000000 nop
|
|
|
|
|
|
|
|
0000000000000000.0 00000000000
|
|
0000000000000000.1 00000000000
|
|
|
|
|
FFFFFFFFFFFFFFF0.1 00000000000
|
Symbol Table:
|
FFFFFFFFFFFFFFF0.2 00000000000
|
==========================================================
|
|
Name Typ Segment Address/Value
|
|
----------------------------------------------------------
|
|
CR C constant 000000000000000D
|
|
LF C constant 000000000000000A
|
|
TAB C constant 0000000000000009
|
|
CTRLC C constant 0000000000000003
|
|
CTRLH C constant 0000000000000008
|
|
CTRLS C constant 0000000000000013
|
|
CTRLX C constant 0000000000000018
|
|
STACKTOP C constant FFFFFFFFFFFEFFF8
|
|
Milliseconds C constant 0000000000000400
|
|
Lastloc C constant 0000000000000408
|
|
ScreenColor C constant 0000000000000414
|
|
CursorRow C constant 0000000000000416
|
|
CursorCol C constant 0000000000000418
|
|
KeybdEcho C constant 000000000000041A
|
|
KeybdBuffer C constant 0000000000000440
|
|
KeybdHead C constant 0000000000000450
|
|
KeybdTail C constant 0000000000000451
|
|
TEXTSCR C constant FFFFFFFFFFD00000
|
|
COLORSCR C constant FFFFFFFFFFD10000
|
|
TEXTREG C constant FFFFFFFFFFDA0000
|
|
TEXT_COLS C constant 0000000000000000
|
|
TEXT_ROWS C constant 0000000000000002
|
|
TEXT_CURPOS C constant 0000000000000016
|
|
KEYBD C constant FFFFFFFFFFDC0000
|
|
KEYBDCLR C constant FFFFFFFFFFDC0002
|
|
UART C constant FFFFFFFFFFDC0A00
|
|
UART_LS C constant FFFFFFFFFFDC0A01
|
|
PIC C constant FFFFFFFFFFDC0FF0
|
|
PSG C constant FFFFFFFFFFD50000
|
|
AC97 C constant FFFFFFFFFFDC1000
|
|
BOOT_STACK C constant FFFFFFFFFFFEFFF8
|
|
BITMAPSCR C constant 0000000100200000
|
|
txempty C constant 0000000000000040
|
|
rxfull C constant 0000000000000001
|
|
SerialGetChar L code FFFFFFFFFFFFE950.0
|
|
SerialPutChar L code FFFFFFFFFFFFE980.0
|
|
SetKeyboardEcho L code FFFFFFFFFFFFEA40.0
|
|
KeybdCheckForKey L code FFFFFFFFFFFFEA90.2
|
|
KeybdGetChar L code FFFFFFFFFFFFEA40.2
|
|
DisplayChar L code FFFFFFFFFFFFED90.1
|
|
DisplayString L code FFFFFFFFFFFFEFD0.1
|
|
start L code FFFFFFFFFFFFE820.1
|
|
ColdStart L code FFFFFFFFFFFFE820.1
|
|
KeybdInit L code FFFFFFFFFFFFE9B0.2
|
|
PICInit L code FFFFFFFFFFFFE940.0
|
|
dcokay L code FFFFFFFFFFFFE870.1
|
|
ClearScreen L code FFFFFFFFFFFFEC10.2
|
|
ClearBmpScreen L code FFFFFFFFFFFFEBD0.0
|
|
j4 L code FFFFFFFFFFFFE8C0.2
|
|
Monitor L code FFFFFFFFFFFFF290.2
|
|
HelloWorld L code FFFFFFFFFFFFE8D0.1
|
|
j3 L code FFFFFFFFFFFFE8E0.1
|
|
j2 L code FFFFFFFFFFFFE900.0
|
|
MSG L code FFFFFFFFFFFFE910.0
|
|
MSGSTART L code FFFFFFFFFFFFE920.0
|
|
sgc1 L code FFFFFFFFFFFFF810.0
|
|
spc1 L code FFFFFFFFFFFFE990.1
|
|
KeybdIRQ L code FFFFFFFFFFFFE9D0.1
|
|
KeybdIRQa L code FFFFFFFFFFFFE9F0.1
|
|
KeybdIRQb L code FFFFFFFFFFFFEA10.1
|
|
KeybdIRQc L code FFFFFFFFFFFFEA30.0
|
|
nochar L code FFFFFFFFFFFFEA80.2
|
|
kck1 L code FFFFFFFFFFFFEAB0.1
|
|
KeybdCheckForKeyDirect L code FFFFFFFFFFFFEAC0.0
|
|
cfkd1 L code FFFFFFFFFFFFEAD0.1
|
|
KeybdGetCharDirect L code FFFFFFFFFFFFEAE0.0
|
|
kgc1 L code FFFFFFFFFFFFEAF0.0
|
|
gk1 L code FFFFFFFFFFFFEB20.1
|
|
gk2 L code FFFFFFFFFFFFEB20.0
|
|
CRLF L code FFFFFFFFFFFFF020.1
|
|
Pulse1000 L code FFFFFFFFFFFFEB30.0
|
|
p10001 L code FFFFFFFFFFFFEB70.2
|
|
FlashCursor L code FFFFFFFFFFFFEB80.1
|
|
CalcScreenLoc L code FFFFFFFFFFFFED50.1
|
|
flshcrsr1 L code FFFFFFFFFFFFEBC0.1
|
|
csj4 L code FFFFFFFFFFFFEC50.0
|
|
AsciiToScreen L code FFFFFFFFFFFFED10.1
|
|
ScrollUp L code FFFFFFFFFFFFEC70.0
|
|
scrup1 L code FFFFFFFFFFFFEC90.2
|
|
BlankLine L code FFFFFFFFFFFFECD0.0
|
|
blnkln1 L code FFFFFFFFFFFFECF0.2
|
|
atoscr1 L code FFFFFFFFFFFFED30.1
|
|
ScreenToAscii L code FFFFFFFFFFFFED40.0
|
|
stasc1 L code FFFFFFFFFFFFED50.0
|
|
dccr L code FFFFFFFFFFFFEDB0.0
|
|
dcx7 L code FFFFFFFFFFFFEDD0.1
|
|
dcx6 L code FFFFFFFFFFFFEDE0.1
|
|
dcx8 L code FFFFFFFFFFFFEE10.0
|
|
dcx9 L code FFFFFFFFFFFFEE30.2
|
|
dcx10 L code FFFFFFFFFFFFEE60.1
|
|
dcx11 L code FFFFFFFFFFFFEE90.1
|
|
dcx12 L code FFFFFFFFFFFFEE80.2
|
|
dcx13 L code FFFFFFFFFFFFEEB0.2
|
|
dcx5 L code FFFFFFFFFFFFEEE0.1
|
|
dcx3 L code FFFFFFFFFFFFEF10.2
|
|
dcx4 L code FFFFFFFFFFFFEF50.1
|
|
dclf L code FFFFFFFFFFFFEF50.0
|
|
IncCursorPos L code FFFFFFFFFFFFEF60.0
|
|
IncCursorRow L code FFFFFFFFFFFFEF90.0
|
|
icc1 L code FFFFFFFFFFFFEFC0.1
|
|
icr1 L code FFFFFFFFFFFFEF90.2
|
|
dspj1 L code FFFFFFFFFFFFEFE0.1
|
|
dsret L code FFFFFFFFFFFFF000.0
|
|
DisplayStringCRLF L code FFFFFFFFFFFFF000.2
|
|
DisplayNybble L code FFFFFFFFFFFFF050.2
|
|
dispnyb1 L code FFFFFFFFFFFFF080.0
|
|
DisplayByte L code FFFFFFFFFFFFF090.1
|
|
DisplayWord L code FFFFFFFFFFFFF0C0.0
|
|
dspwd1 L code FFFFFFFFFFFFF0D0.0
|
|
DisplayMem L code FFFFFFFFFFFFF0E0.2
|
|
dspmem1 L code FFFFFFFFFFFFF110.0
|
|
BinToBCD L code FFFFFFFFFFFFF140.0
|
|
bta1 L code FFFFFFFFFFFFF150.1
|
|
BCDToAscii L code FFFFFFFFFFFFF1B0.0
|
|
bta2 L code FFFFFFFFFFFFF1C0.0
|
|
BinToStr L code FFFFFFFFFFFFF200.2
|
|
btos3 L code FFFFFFFFFFFFF230.0
|
|
btos1 L code FFFFFFFFFFFFF230.1
|
|
btos2 L code FFFFFFFFFFFFF270.1
|
|
PromptLn L code FFFFFFFFFFFFF2A0.1
|
|
Prompt3 L code FFFFFFFFFFFFF2B0.1
|
|
Prompt1 L code FFFFFFFFFFFFF2D0.0
|
|
Prompt2 L code FFFFFFFFFFFFF300.1
|
|
Editmem L code FFFFFFFFFFFFF450.0
|
|
Dumpmem L code FFFFFFFFFFFFF4A0.0
|
|
ExecuteCode L code FFFFFFFFFFFFF480.1
|
|
LoadS19 L code FFFFFFFFFFFFF590.0
|
|
DisplayHelp L code FFFFFFFFFFFFF370.1
|
|
TestCLS L code FFFFFFFFFFFFF330.0
|
|
HelpMsg L code FFFFFFFFFFFFF390.0
|
|
ignBlanks L code FFFFFFFFFFFFF420.0
|
|
ignBlanks1 L code FFFFFFFFFFFFF420.2
|
|
GetHexNumber L code FFFFFFFFFFFFF4E0.1
|
|
edtmem1 L code FFFFFFFFFFFFF460.1
|
|
gthxn2 L code FFFFFFFFFFFFF4F0.2
|
|
AsciiToHexNybble L code FFFFFFFFFFFFF530.2
|
|
gthxn1 L code FFFFFFFFFFFFF520.2
|
|
gthx3 L code FFFFFFFFFFFFF580.1
|
|
gthx5 L code FFFFFFFFFFFFF550.0
|
|
gthx6 L code FFFFFFFFFFFFF560.2
|
|
ProcessRec L code FFFFFFFFFFFFF5A0.0
|
|
NextRec L code FFFFFFFFFFFFF590.1
|
|
sGetChar L code FFFFFFFFFFFFF7F0.0
|
|
ProcessS1 L code FFFFFFFFFFFFF690.1
|
|
ProcessS2 L code FFFFFFFFFFFFF6A0.0
|
|
ProcessS3 L code FFFFFFFFFFFFF6A0.2
|
|
ProcessS7 L code FFFFFFFFFFFFF6B0.1
|
|
ProcessS8 L code FFFFFFFFFFFFF6C0.1
|
|
ProcessS9 L code FFFFFFFFFFFFF6D0.1
|
|
pcssxa L code FFFFFFFFFFFFF620.0
|
|
pcss1a L code FFFFFFFFFFFFF620.2
|
|
S19Get16BitAddress L code FFFFFFFFFFFFF6E0.1
|
|
S19Get24BitAddress L code FFFFFFFFFFFFF700.1
|
|
S19Get32BitAddress L code FFFFFFFFFFFFF720.1
|
|
S1932b L code FFFFFFFFFFFFF790.1
|
|
S1932a L code FFFFFFFFFFFFF760.2
|
|
sgc2 L code FFFFFFFFFFFFF7F0.2
|
|
AUXIN L code FFFFFFFFFFFFF8C0.0
|
|
SetupAC97 L code FFFFFFFFFFFFF820.2
|
|
sac971 L code FFFFFFFFFFFFF830.1
|
|
sac972 L code FFFFFFFFFFFFF850.1
|
|
Beep L code FFFFFFFFFFFFF850.2
|
|
beep1 L code FFFFFFFFFFFFF8B0.0
|
|
AXIRET L code FFFFFFFFFFFFF8D0.2
|
|
BYEBYE L code FFFFFFFFFFFFF8E0.0
|
|
msgInit L code FFFFFFFFFFFFF8F0.0
|
|
OKMSG L code FFFFFFFFFFFFFADF.0
|
|
msgWhat L code FFFFFFFFFFFFF92D.0
|
|
SRYMSG L code FFFFFFFFFFFFFAF0.0
|
|
CLMSG L code FFFFFFFFFFFFFAF2.0
|
|
msgReadError L code FFFFFFFFFFFFF93E.0
|
|
msgNumTooBig L code FFFFFFFFFFFFF959.0
|
|
msgDivZero L code FFFFFFFFFFFFF96D.0
|
|
msgVarSpace L code FFFFFFFFFFFFF980.0
|
|
msgBytesFree L code FFFFFFFFFFFFF998.0
|
|
msgReady L code FFFFFFFFFFFFF9A6.0
|
|
msgComma L code FFFFFFFFFFFFF9B0.0
|
|
msgLineRange L code FFFFFFFFFFFFF9C4.0
|
|
msgVar L code FFFFFFFFFFFFF9DA.0
|
|
msgRNDBad L code FFFFFFFFFFFFF9F1.0
|
|
msgSYSBad L code FFFFFFFFFFFFFA05.0
|
|
msgInputVar L code FFFFFFFFFFFFFA17.0
|
|
msgNextFor L code FFFFFFFFFFFFFA34.0
|
|
msgNextVar L code FFFFFFFFFFFFFA47.0
|
|
msgBadGotoGosub L code FFFFFFFFFFFFFA6B.0
|
|
msgRetWoGosub L code FFFFFFFFFFFFFA88.0
|
|
msgTooBig L code FFFFFFFFFFFFFA9F.0
|
|
msgExtraChars L code FFFFFFFFFFFFFAB4.0
|
|
INITMSG L code FFFFFFFFFFFFFAD7.0
|
|
HOWMSG L code FFFFFFFFFFFFFAE6.0
|
|
WHTMSG L code FFFFFFFFFFFFFAEB.0
|
|
LSTROM C constant 0000000000000000
|
|
typef L bss 0000000000000080
|
|
OSSP L bss 0000000000000088
|
|
CURRNT L bss 0000000000000090
|
|
STKGOS L bss 0000000000000098
|
|
STKINP L bss 00000000000000A0
|
|
LOPVAR L bss 00000000000000A8
|
|
LOPINC L bss 00000000000000B0
|
|
LOPLMT L bss 00000000000000B8
|
|
LOPLN L bss 00000000000000C0
|
|
LOPPT L bss 00000000000000C8
|
|
TXTUNF L bss 00000000000000D0
|
|
VARBGN L bss 00000000000000D8
|
|
IVARBGN L bss 00000000000000E0
|
|
SVARBGN L bss 00000000000000E8
|
|
FVARBGN L bss 00000000000000F0
|
|
STKBOT L bss 00000000000000F8
|
|
NUMWKA L bss 0000000000000100
|
|
BUFFER L bss 000000000000010E
|
|
ramtest L code FFFFFFFFFFFFFB00.0
|
|
ramtest2 L code FFFFFFFFFFFFFB10.0
|
|
ramtest1 L code FFFFFFFFFFFFFB30.2
|
|
ramtest4 L code FFFFFFFFFFFFFB40.1
|
|
ramtest3 L code FFFFFFFFFFFFFB70.0
|
|
ramtest8 L code FFFFFFFFFFFFFBE0.1
|
|
ramtest5 L code FFFFFFFFFFFFFB80.1
|
|
ramtest6 L code FFFFFFFFFFFFFBB0.0
|
|
ramtest7 L code FFFFFFFFFFFFFBB0.2
|
|
ramtest9 L code FFFFFFFFFFFFFBF0.0
|
|
ramtest10 L code FFFFFFFFFFFFFBF0.2
|
|
irqrout L code FFFFFFFFFFFFFC00.1
|
|
irqrout3 L code FFFFFFFFFFFFFC10.2
|
|
irqrout2 L code FFFFFFFFFFFFFC20.2
|
|
irqrout1 L code FFFFFFFFFFFFFC30.1
|
|
nmirout L code FFFFFFFFFFFFFC40.1
|
|
DTLBHandler L code FFFFFFFFFFFFFC40.2
|
|
dh1 L code FFFFFFFFFFFFFC50.1
|
