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Apple2-IO-RPi
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Update firmware with command changes

This commit is contained in:
Terence Boldt 2021-03-28 11:34:52 -04:00
parent cf9ff791fc
commit 590575de77
3 changed files with 67 additions and 68 deletions
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135
Apple2/CommandFirmware.lst
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@ -55,7 +55,7 @@ Current file: CommandFirmware.asm
00C51C 1 A9 A4 lda #$a4
00C51E 1 85 33 sta $33
00C520 1 GetCommand:
00C520 1 20 6A FD jsr $fd6a
00C520 1 20 67 FD jsr $fd67
00C523 1 AD 00 02 lda $0200
00C526 1 C9 8D cmp #$8d ;stop when return found
00C528 1 F0 06 beq ExitApp
@ -70,73 +70,72 @@ Current file: CommandFirmware.asm
00C537 1 60 rts
00C538 1
00C538 1 DumpOutput:
00C538 1 A2 50 ldx #$50
00C53A 1 A9 05 lda #$05 ;send command 5 = exec
00C53C 1 20 63 C5 jsr SendByte
00C53F 1 A0 00 ldy #$00
00C541 1 getInput:
00C541 1 B9 00 02 lda $0200,y
00C544 1 C9 8D cmp #$8d
00C546 1 F0 08 beq sendNullTerminator
00C548 1 29 7F and #$7f
00C54A 1 20 63 C5 jsr SendByte
00C54D 1 C8 iny
00C54E 1 D0 F1 bne getInput
00C550 1 sendNullTerminator:
00C550 1 A9 00 lda #$00
00C552 1 20 63 C5 jsr SendByte
00C555 1 getOutput:
00C555 1 20 81 C5 jsr GetByte
00C558 1 C9 00 cmp #$00
00C55A 1 F0 06 beq endOutput
00C55C 1 20 ED FD jsr $fded
00C55F 1 18 clc
00C560 1 90 F3 bcc getOutput
00C562 1 endOutput:
00C562 1 60 rts
00C563 1
00C563 1 SendByte:
00C563 1 48 pha
00C564 1 waitWrite:
00C564 1 AD DB C0 lda InputFlags
00C567 1 2A rol
00C568 1 2A rol
00C569 1 B0 F9 bcs waitWrite
00C56B 1 68 pla
00C56C 1 8D DD C0 sta OutputByte
00C56F 1 A9 0E lda #$0e ; set bit 0 low to indicate write started
00C571 1 8D D7 C0 sta OutputFlags
00C574 1 finishWrite:
00C574 1 AD DB C0 lda InputFlags
00C577 1 2A rol
00C578 1 2A rol
00C579 1 90 F9 bcc finishWrite
00C57B 1 A9 0F lda #$0f
00C57D 1 8D D7 C0 sta OutputFlags
00C580 1 60 rts
00C581 1
00C581 1 GetByte:
00C581 1 A9 0D lda #$0d ;set read flag low
00C583 1 8D D7 C0 sta OutputFlags
00C586 1 waitRead:
00C586 1 AD DB C0 lda InputFlags
00C589 1 2A rol
00C58A 1 B0 FA bcs waitRead
00C58C 1 AD DE C0 lda InputByte
00C58F 1 48 pha
00C590 1 A9 0F lda #$0f ;set all flags high
00C592 1 8D D7 C0 sta OutputFlags
00C595 1 finishRead:
00C595 1 AD DB C0 lda InputFlags
00C598 1 2A rol
00C599 1 90 FA bcc finishRead
00C59B 1 68 pla
00C59C 1 end:
00C59C 1 60 rts
00C59D 1
00C59D 1 00 00 00 00 .repeat 251-<end
00C5A1 1 00 00 00 00
00C5A5 1 00 00 00 00
00C538 1 A9 05 lda #$05 ;send command 5 = exec
00C53A 1 20 61 C5 jsr SendByte
00C53D 1 A0 00 ldy #$00
00C53F 1 getInput:
00C53F 1 B9 00 02 lda $0200,y
00C542 1 C9 8D cmp #$8d
00C544 1 F0 08 beq sendNullTerminator
00C546 1 29 7F and #$7f
00C548 1 20 61 C5 jsr SendByte
00C54B 1 C8 iny
00C54C 1 D0 F1 bne getInput
00C54E 1 sendNullTerminator:
00C54E 1 A9 00 lda #$00
00C550 1 20 61 C5 jsr SendByte
00C553 1 getOutput:
00C553 1 20 7F C5 jsr GetByte
00C556 1 C9 00 cmp #$00
00C558 1 F0 06 beq endOutput
00C55A 1 20 ED FD jsr $fded
00C55D 1 18 clc
00C55E 1 90 F3 bcc getOutput
00C560 1 endOutput:
00C560 1 60 rts
00C561 1
00C561 1 SendByte:
00C561 1 48 pha
00C562 1 waitWrite:
00C562 1 AD DB C0 lda InputFlags
00C565 1 2A rol
00C566 1 2A rol
00C567 1 B0 F9 bcs waitWrite
00C569 1 68 pla
00C56A 1 8D DD C0 sta OutputByte
00C56D 1 A9 1E lda #$1e ; set bit 0 low to indicate write started
00C56F 1 8D D7 C0 sta OutputFlags
00C572 1 finishWrite:
00C572 1 AD DB C0 lda InputFlags
00C575 1 2A rol
00C576 1 2A rol
00C577 1 90 F9 bcc finishWrite
00C579 1 A9 1F lda #$1f
00C57B 1 8D D7 C0 sta OutputFlags
00C57E 1 60 rts
00C57F 1
00C57F 1 GetByte:
00C57F 1 A9 1D lda #$1d ;set read flag low
00C581 1 8D D7 C0 sta OutputFlags
00C584 1 waitRead:
00C584 1 AD DB C0 lda InputFlags
00C587 1 2A rol
00C588 1 B0 FA bcs waitRead
00C58A 1 AD DE C0 lda InputByte
00C58D 1 48 pha
00C58E 1 A9 1F lda #$1f ;set all flags high
00C590 1 8D D7 C0 sta OutputFlags
00C593 1 finishRead:
00C593 1 AD DB C0 lda InputFlags
00C596 1 2A rol
00C597 1 90 FA bcc finishRead
00C599 1 68 pla
00C59A 1 end:
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 .endrepeat
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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