Removed (pretty inconsistently used) tab chars from source code base.
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@@ -4,87 +4,87 @@
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; char cgetc (void);
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;
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.export _cgetc
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.import cursor
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.export _cgetc
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.import cursor
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.include "plus4.inc"
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.include "plus4.inc"
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; --------------------------------------------------------------------------
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.segment "LOWCODE" ; Accesses the ROM - must go into low mem
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_cgetc: lda KEY_COUNT ; Get number of characters
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ora FKEY_COUNT ; Or with number of function key chars
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bne L2 ; Jump if there are already chars waiting
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_cgetc: lda KEY_COUNT ; Get number of characters
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ora FKEY_COUNT ; Or with number of function key chars
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bne L2 ; Jump if there are already chars waiting
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; Switch on the cursor if needed
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ldy CURS_X
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lda (CRAM_PTR),y ; Get current char
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pha ; And save it
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lda CHARCOLOR
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sta (CRAM_PTR),y
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ldy CURS_X
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lda (CRAM_PTR),y ; Get current char
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pha ; And save it
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lda CHARCOLOR
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sta (CRAM_PTR),y
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lda cursor
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beq L1 ; Jump if no cursor
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tya
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clc
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adc SCREEN_PTR
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sta TED_CURSLO
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lda SCREEN_PTR+1
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adc #$00
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sbc #$0B ; + carry = $C00 (screen address)
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sta TED_CURSHI
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lda cursor
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beq L1 ; Jump if no cursor
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tya
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clc
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adc SCREEN_PTR
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sta TED_CURSLO
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lda SCREEN_PTR+1
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adc #$00
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sbc #$0B ; + carry = $C00 (screen address)
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sta TED_CURSHI
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L1: lda KEY_COUNT
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ora FKEY_COUNT
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beq L1
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pla
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sta (CRAM_PTR),y
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lda #$ff
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sta TED_CURSLO ; Cursor off
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sta TED_CURSHI
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L1: lda KEY_COUNT
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ora FKEY_COUNT
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beq L1
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pla
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sta (CRAM_PTR),y
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lda #$ff
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sta TED_CURSLO ; Cursor off
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sta TED_CURSHI
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L2: sta ENABLE_ROM ; Bank in the ROM
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jsr KBDREAD ; Read char and return in A (ROM routine)
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L2: sta ENABLE_ROM ; Bank in the ROM
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jsr KBDREAD ; Read char and return in A (ROM routine)
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sta ENABLE_RAM ; Reenable the RAM
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ldx #0
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rts
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ldx #0
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rts
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; --------------------------------------------------------------------------
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; Make the function keys return function key codes instead of the current
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; strings so the program will see and may handle them.
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; Undo this change when the program ends
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.constructor initkbd
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.destructor donekbd
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.constructor initkbd
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.destructor donekbd
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.segment "INIT" ; Special init code segment may get overwritten
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.proc initkbd
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.proc initkbd
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ldy #15
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@L1: lda fnkeys,y
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sta FKEY_SPACE,y
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dey
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bpl @L1
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rts
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ldy #15
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@L1: lda fnkeys,y
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sta FKEY_SPACE,y
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dey
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bpl @L1
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rts
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.endproc
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.segment "LOWCODE" ; Accesses the ROM - must go into low mem
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.proc donekbd
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.proc donekbd
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ldx #$39 ; Copy the original function keys
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ldx #$39 ; Copy the original function keys
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sta ENABLE_ROM ; Bank in the ROM
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@L1: lda FKEY_ORIG,x
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sta FKEY_SPACE,x
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dex
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bpl @L1
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@L1: lda FKEY_ORIG,x
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sta FKEY_SPACE,x
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dex
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bpl @L1
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sta ENABLE_RAM ; Bank out the ROM
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rts
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rts
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.endproc
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@@ -92,6 +92,6 @@ L2: sta ENABLE_ROM ; Bank in the ROM
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; Function key table, readonly
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.rodata
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fnkeys: .byte $01, $01, $01, $01, $01, $01, $01, $01
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.byte 133, 137, 134, 138, 135, 139, 136, 140
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fnkeys: .byte $01, $01, $01, $01, $01, $01, $01, $01
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.byte 133, 137, 134, 138, 135, 139, 136, 140
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