2021-10-27 03:13:06 +00:00
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ca65 V2.17 - Raspbian 2.17-1
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2021-03-27 14:25:42 +00:00
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Main file : MenuFirmware.asm
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Current file: MenuFirmware.asm
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000000r 1 ;ProDOS Zero Page
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000000r 1 Command = $42 ;ProDOS Command
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000000r 1 Unit = $43 ;ProDOS unit (SDDD0000)
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000000r 1 BufferLo = $44
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000000r 1 BufferHi = $45
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000000r 1 BlockLo = $46
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000000r 1 BlockHi = $47
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000000r 1
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000000r 1 ; ProDOS Error Codes
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000000r 1 IOError = $27
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000000r 1 NoDevice = $28
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000000r 1 WriteProtect = $2B
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000000r 1
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2021-03-27 15:07:36 +00:00
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000000r 1 InputByte = $c08e+SLOT*$10
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000000r 1 OutputByte = $c08d+SLOT*$10
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000000r 1 InputFlags = $c08b+SLOT*$10
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000000r 1 OutputFlags = $c087+SLOT*$10
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2021-03-27 14:25:42 +00:00
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000000r 1
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2021-11-25 23:45:56 +00:00
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000000r 1 ResetCommand = $00
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2021-03-27 14:25:42 +00:00
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000000r 1 ReadBlockCommand = $01
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000000r 1 WriteBlockCommand = $02
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000000r 1 GetTimeCommand = $03
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000000r 1 ChangeDriveCommand = $04
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000000r 1 ExecCommand = $05
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000000r 1 LoadFileCommand = $06
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000000r 1 SaveFileCommand = $07
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2021-06-01 23:08:21 +00:00
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000000r 1 MenuCommand = $08
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2021-03-27 14:25:42 +00:00
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000000r 1
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2021-07-02 02:34:09 +00:00
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000000r 1 Wait = $fca8
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000000r 1 PrintChar = $fded
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000000r 1 Home = $fc58
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000000r 1 ReadChar = $fd0c
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2021-11-25 23:45:56 +00:00
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000000r 1 BasCalc = $fbc1
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000000r 1 htab = $24
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000000r 1 vtab = $25
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000000r 1 BasL = $28
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000000r 1 htab80 = $057b
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2021-07-02 02:34:09 +00:00
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000000r 1
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2021-03-27 14:25:42 +00:00
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000000r 1 .org SLOT*$100 + $C000
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2021-04-01 12:43:04 +00:00
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00C700 1 ;ID bytes for booting and drive detection
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00C700 1 E0 20 cpx #$20 ;ID bytes for ProDOS and the
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00C702 1 E0 00 cpx #$00 ; Apple Autostart ROM
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00C704 1 E0 03 cpx #$03 ;
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00C706 1
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00C706 1 A2 70 ldx #SLOT*$10
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00C708 1 86 2B stx $2b
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00C70A 1 86 43 stx Unit
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00C70C 1
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00C70C 1 ;force EPROM to second page on boot
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00C70C 1 A9 3F lda #$3f ;set all flags high and page 1 of EPROMi
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00C70E 1 PageJump:
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00C70E 1 8D F7 C0 sta OutputFlags
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00C711 1 4C 19 C7 jmp Start
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00C714 1
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00C714 1 ;entry points for ProDOS
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00C714 1 DriverEntry:
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00C714 1 A9 0F lda #$0f ;set all flags high and page 0 of EPROM
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00C716 1 8D F7 C0 sta OutputFlags
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00C719 1 ;since the firmware page changes to 0, this falls through to the driver
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00C719 1
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00C719 1 Start:
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00C719 1 A9 F0 lda #$f0 ;restore COUT after PR# called
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00C71B 1 85 36 sta $36
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00C71D 1 A9 FD lda #$fd
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00C71F 1 85 37 sta $37
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2021-11-25 23:45:56 +00:00
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00C721 1 ;jsr Home ;clear screen and show menu options
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00C721 1 A9 10 lda #$10
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00C723 1 85 25 sta vtab
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00C725 1 20 C1 FB jsr BasCalc
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00C728 1 A0 00 ldy #$00
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00C72A 1 PrintString:
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00C72A 1 B9 BC C7 lda Text,y
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00C72D 1 F0 08 beq WaitForRPi
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00C72F 1 09 80 ora #$80
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00C731 1 20 ED FD jsr PrintChar
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00C734 1 C8 iny
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00C735 1 D0 F3 bne PrintString
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00C737 1
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00C737 1 WaitForRPi:
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00C737 1 AD FB C0 lda InputFlags
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00C73A 1 2A rol
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00C73B 1 B0 0D bcs Reset
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00C73D 1 A9 FF lda #$ff
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00C73F 1 20 A8 FC jsr Wait
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00C742 1 A9 AE lda #'.'+$80
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00C744 1 20 ED FD jsr PrintChar
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00C747 1 4C 37 C7 jmp WaitForRPi
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00C74A 1
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00C74A 1 Reset:
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00C74A 1 A9 DF lda #'_'|$80
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00C74C 1 20 ED FD jsr PrintChar
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00C74F 1 A9 00 lda #ResetCommand
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00C751 1 20 7A C7 jsr SendByte
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00C754 1 A9 88 lda #$88
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00C756 1 20 ED FD jsr PrintChar
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00C759 1 A9 AE lda #'.'|$80
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00C75B 1 20 ED FD jsr PrintChar
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00C75E 1 20 98 C7 jsr GetByte
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00C761 1 F0 03 beq Ok
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00C763 1 4C 4A C7 jmp Reset
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00C766 1
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00C766 1 Ok:
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00C766 1 A9 8D lda #$8D
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00C768 1 20 ED FD jsr PrintChar
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00C76B 1 A9 CF lda #'O'|$80
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00C76D 1 20 ED FD jsr PrintChar
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00C770 1 A9 CB lda #'K'|$80
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00C772 1 20 ED FD jsr PrintChar
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00C775 1
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00C775 1 Boot:
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00C775 1 A9 0F lda #$0f
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00C777 1 4C 0E C7 jmp PageJump
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00C77A 1
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00C77A 1 SendByte:
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00C77A 1 48 pha
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00C77B 1 waitWrite:
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2021-06-30 04:12:32 +00:00
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00C77B 1 AD FB C0 lda InputFlags
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00C77E 1 2A rol
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00C77F 1 2A rol
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2021-11-25 23:45:56 +00:00
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00C780 1 B0 F9 bcs waitWrite
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00C782 1 68 pla
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00C783 1 8D FD C0 sta OutputByte
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00C786 1 A9 3E lda #$3e ; set bit 0 low to indicate write started
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00C788 1 8D F7 C0 sta OutputFlags
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00C78B 1 finishWrite:
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00C78B 1 AD FB C0 lda InputFlags
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00C78E 1 2A rol
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00C78F 1 2A rol
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00C790 1 90 F9 bcc finishWrite
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00C792 1 A9 3F lda #$3f
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00C794 1 8D F7 C0 sta OutputFlags
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00C797 1 60 rts
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00C798 1
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00C798 1 GetByte:
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00C798 1 A9 3D lda #$3d ;set read flag low
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00C79A 1 8D F7 C0 sta OutputFlags
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00C79D 1 waitRead:
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00C79D 1 AD FB C0 lda InputFlags
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00C7A0 1 2A rol
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00C7A1 1 B0 FA bcs waitRead
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00C7A3 1 AD FE C0 lda InputByte
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00C7A6 1 48 pha
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00C7A7 1 A9 3F lda #$3f ;set all flags high
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00C7A9 1 8D F7 C0 sta OutputFlags
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00C7AC 1 finishRead:
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00C7AC 1 AD FB C0 lda InputFlags
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00C7AF 1 2A rol
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00C7B0 1 90 FA bcc finishRead
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00C7B2 1 68 pla
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00C7B3 1 end:
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00C7B3 1 60 rts
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00C7B4 1
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00C7B4 1 00 00 00 00 .repeat 187-<end
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2021-10-06 23:30:20 +00:00
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00C7B8 1 00 00 00 00
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00C7BC 1 .byte 0
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00C7BC 1 .endrepeat
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00C7BC 1
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00C7BC 1 Text:
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00C7BC 1 41 70 70 6C .byte "Apple2-IO-RPi",$8d
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00C7C0 1 65 32 2D 49
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00C7C4 1 4F 2D 52 50
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00C7C8 1 69 8D
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00C7CA 1 28 63 29 32 .byte "(c)2020-2021 Terence J. Boldt",$8d
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00C7CE 1 30 32 30 2D
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00C7D2 1 32 30 32 31
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00C7D6 1 20 54 65 72
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00C7DA 1 65 6E 63 65
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00C7DE 1 20 4A 2E 20
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00C7E2 1 42 6F 6C 64
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00C7E6 1 74 8D
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00C7E8 1 8D .byte $8d
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00C7E9 1 57 61 69 74 .byte "Waiting for RPi...",$00
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00C7ED 1 69 6E 67 20
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00C7F1 1 66 6F 72 20
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00C7F5 1 52 50 69 2E
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00C7F9 1 2E 2E 00
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2021-06-30 04:12:32 +00:00
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00C7FC 1
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2021-04-01 12:43:04 +00:00
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00C7FC 1 00 00 .byte 0,0 ;0000 blocks = check status
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00C7FE 1 07 .byte 7 ;bit set(0=status 1=read 2=write) unset(3=format, 4/5=number of volumes, 6=interruptable, 7=removable)
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00C7FF 1 14 .byte DriverEntry&$00FF ;low byte of entry
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00C800 1
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00C800 1
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