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Enable 80 columns for command line

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This commit is contained in:
Terence Boldt 2021-03-28 13:48:45 -04:00
parent 590575de77
commit d74c8452f1
4 changed files with 84 additions and 94 deletions
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11
Apple2/CommandFirmware.asm
View File

@ -46,6 +46,7 @@ DriverEntry:
sta OutputFlags sta OutputFlags
Start: Start:
jsr $c300 ;enable 80 columns
lda $33 lda $33
pha pha
lda #$a4 lda #$a4
@ -53,17 +54,11 @@ Start:
GetCommand: GetCommand:
jsr $fd67 jsr $fd67
lda $0200 lda $0200
cmp #$8d ;stop when return found cmp #$8d ;skip when return found
beq ExitApp beq GetCommand
jsr DumpOutput jsr DumpOutput
clc clc
bcc GetCommand bcc GetCommand
ExitApp:
pla
sta $33
lda #$00
sty $34
rts
DumpOutput: DumpOutput:
lda #$05 ;send command 5 = exec lda #$05 ;send command 5 = exec

167
Apple2/CommandFirmware.lst
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@ -50,92 +50,87 @@ Current file: CommandFirmware.asm
00C516 1 8D D7 C0 sta OutputFlags 00C516 1 8D D7 C0 sta OutputFlags
00C519 1 00C519 1
00C519 1 Start: 00C519 1 Start:
00C519 1 A5 33 lda $33 00C519 1 20 00 C3 jsr $c300 ;enable 80 columns
00C51B 1 48 pha 00C51C 1 A5 33 lda $33
00C51C 1 A9 A4 lda #$a4 00C51E 1 48 pha
00C51E 1 85 33 sta $33 00C51F 1 A9 A4 lda #$a4
00C520 1 GetCommand: 00C521 1 85 33 sta $33
00C520 1 20 67 FD jsr $fd67 00C523 1 GetCommand:
00C523 1 AD 00 02 lda $0200 00C523 1 20 67 FD jsr $fd67
00C526 1 C9 8D cmp #$8d ;stop when return found 00C526 1 AD 00 02 lda $0200
00C528 1 F0 06 beq ExitApp 00C529 1 C9 8D cmp #$8d ;skip when return found
00C52A 1 20 38 C5 jsr DumpOutput 00C52B 1 F0 F6 beq GetCommand
00C52D 1 18 clc 00C52D 1 20 33 C5 jsr DumpOutput
00C52E 1 90 F0 bcc GetCommand 00C530 1 18 clc
00C530 1 ExitApp: 00C531 1 90 F0 bcc GetCommand
00C530 1 68 pla 00C533 1
00C531 1 85 33 sta $33 00C533 1 DumpOutput:
00C533 1 A9 00 lda #$00 00C533 1 A9 05 lda #$05 ;send command 5 = exec
00C535 1 84 34 sty $34 00C535 1 20 5C C5 jsr SendByte
00C537 1 60 rts 00C538 1 A0 00 ldy #$00
00C538 1 00C53A 1 getInput:
00C538 1 DumpOutput: 00C53A 1 B9 00 02 lda $0200,y
00C538 1 A9 05 lda #$05 ;send command 5 = exec 00C53D 1 C9 8D cmp #$8d
00C53A 1 20 61 C5 jsr SendByte 00C53F 1 F0 08 beq sendNullTerminator
00C53D 1 A0 00 ldy #$00 00C541 1 29 7F and #$7f
00C53F 1 getInput: 00C543 1 20 5C C5 jsr SendByte
00C53F 1 B9 00 02 lda $0200,y 00C546 1 C8 iny
00C542 1 C9 8D cmp #$8d 00C547 1 D0 F1 bne getInput
00C544 1 F0 08 beq sendNullTerminator 00C549 1 sendNullTerminator:
00C546 1 29 7F and #$7f 00C549 1 A9 00 lda #$00
00C548 1 20 61 C5 jsr SendByte 00C54B 1 20 5C C5 jsr SendByte
00C54B 1 C8 iny 00C54E 1 getOutput:
00C54C 1 D0 F1 bne getInput 00C54E 1 20 7A C5 jsr GetByte
00C54E 1 sendNullTerminator: 00C551 1 C9 00 cmp #$00
00C54E 1 A9 00 lda #$00 00C553 1 F0 06 beq endOutput
00C550 1 20 61 C5 jsr SendByte 00C555 1 20 ED FD jsr $fded
00C553 1 getOutput: 00C558 1 18 clc
00C553 1 20 7F C5 jsr GetByte 00C559 1 90 F3 bcc getOutput
00C556 1 C9 00 cmp #$00 00C55B 1 endOutput:
00C558 1 F0 06 beq endOutput 00C55B 1 60 rts
00C55A 1 20 ED FD jsr $fded 00C55C 1
00C55D 1 18 clc 00C55C 1 SendByte:
00C55E 1 90 F3 bcc getOutput 00C55C 1 48 pha
00C560 1 endOutput: 00C55D 1 waitWrite:
00C560 1 60 rts 00C55D 1 AD DB C0 lda InputFlags
00C561 1 00C560 1 2A rol
00C561 1 SendByte: 00C561 1 2A rol
00C561 1 48 pha 00C562 1 B0 F9 bcs waitWrite
00C562 1 waitWrite: 00C564 1 68 pla
00C562 1 AD DB C0 lda InputFlags 00C565 1 8D DD C0 sta OutputByte
00C565 1 2A rol 00C568 1 A9 1E lda #$1e ; set bit 0 low to indicate write started
00C566 1 2A rol 00C56A 1 8D D7 C0 sta OutputFlags
00C567 1 B0 F9 bcs waitWrite 00C56D 1 finishWrite:
00C569 1 68 pla 00C56D 1 AD DB C0 lda InputFlags
00C56A 1 8D DD C0 sta OutputByte 00C570 1 2A rol
00C56D 1 A9 1E lda #$1e ; set bit 0 low to indicate write started 00C571 1 2A rol
00C56F 1 8D D7 C0 sta OutputFlags 00C572 1 90 F9 bcc finishWrite
00C572 1 finishWrite: 00C574 1 A9 1F lda #$1f
00C572 1 AD DB C0 lda InputFlags 00C576 1 8D D7 C0 sta OutputFlags
00C575 1 2A rol 00C579 1 60 rts
00C576 1 2A rol 00C57A 1
00C577 1 90 F9 bcc finishWrite 00C57A 1 GetByte:
00C579 1 A9 1F lda #$1f 00C57A 1 A9 1D lda #$1d ;set read flag low
00C57B 1 8D D7 C0 sta OutputFlags 00C57C 1 8D D7 C0 sta OutputFlags
00C57E 1 60 rts 00C57F 1 waitRead:
00C57F 1 00C57F 1 AD DB C0 lda InputFlags
00C57F 1 GetByte: 00C582 1 2A rol
00C57F 1 A9 1D lda #$1d ;set read flag low 00C583 1 B0 FA bcs waitRead
00C581 1 8D D7 C0 sta OutputFlags 00C585 1 AD DE C0 lda InputByte
00C584 1 waitRead: 00C588 1 48 pha
00C584 1 AD DB C0 lda InputFlags 00C589 1 A9 1F lda #$1f ;set all flags high
00C587 1 2A rol 00C58B 1 8D D7 C0 sta OutputFlags
00C588 1 B0 FA bcs waitRead 00C58E 1 finishRead:
00C58A 1 AD DE C0 lda InputByte 00C58E 1 AD DB C0 lda InputFlags
00C58D 1 48 pha 00C591 1 2A rol
00C58E 1 A9 1F lda #$1f ;set all flags high 00C592 1 90 FA bcc finishRead
00C590 1 8D D7 C0 sta OutputFlags 00C594 1 68 pla
00C593 1 finishRead: 00C595 1 end:
00C593 1 AD DB C0 lda InputFlags 00C595 1 60 rts
00C596 1 2A rol 00C596 1
00C597 1 90 FA bcc finishRead 00C596 1 00 00 00 00 .repeat 251-<end
00C599 1 68 pla 00C59A 1 00 00 00 00
00C59A 1 end: 00C59E 1 00 00 00 00
00C59A 1 60 rts
00C59B 1
00C59B 1 00 00 00 00 .repeat 251-<end
00C59F 1 00 00 00 00
00C5A3 1 00 00 00 00
00C5FC 1 .byte 0 00C5FC 1 .byte 0
00C5FC 1 .endrepeat 00C5FC 1 .endrepeat
00C5FC 1 00 00 .byte 0,0 ;0000 blocks = check status 00C5FC 1 00 00 .byte 0,0 ;0000 blocks = check status

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Apple2/Firmware_27256_EPROM.bin
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Apple2/Firmware_AT28C64B_EEPROM.bin
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