mirror of
https://github.com/forth-ev/VolksForth.git
synced 2024-06-01 06:41:37 +00:00
3a4eff97c4
Also remove the code referencing the old R38 RAM/ROM bank switching registers. Finally remove some unused Kernal variable labels.
129 lines
2.5 KiB
Forth
129 lines
2.5 KiB
Forth
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include vf-lbls-cbm.fth
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\ *** Block No. 127, Hexblock 7f
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7f fthpage
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\ C64-Labels clv13.4.87)
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0E716 >label ConOut
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090 >label IOStatus
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09d >label MsgFlg
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0d020 >label BrdCol
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0d021 >label BkgCol
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0286 >label PenCol
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0d4 >label CurFlg
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0d8 >label InsCnt
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028a >label KeyRep
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0cc >label blnsw
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0cd >label blnct
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0ce >label gdbln
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0cf >label blnon
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0d1 >label pnt
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0d3 >label pntr
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\ *** Block No. 129, Hexblock 81
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81 fthpage
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\ C64 c64key? getkey
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Code c64key? ( -- flag)
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0C6 lda
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0<> ?[ 0FF # lda ]? pha
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Push jmp end-code
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Code getkey ( -- 8b)
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0C6 lda 0<>
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?[ sei 0277 ldy
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[[ 0277 1+ ,X lda 0277 ,X sta inx
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0C6 cpx 0= ?]
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0C6 dec tya cli 0A0 # cmp
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0= ?[ bl # lda ]?
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]?
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Push0A jmp end-code
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\ *** Block No. 130, Hexblock 82
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82 fthpage
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\ C64 curon curoff
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Code curon ( --)
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pntr ldy pnt )Y lda gdbln sta blnsw stx
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xyNext jmp end-code
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Code curoff ( --)
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iny blnsw sty blnct sty blnon stx
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gdbln lda pntr ldy pnt )Y sta
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1 # ldy Next jmp end-code
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include vf-sys-cbm.fth
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\ *** Block No. 143, Hexblock 8f
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\ ... continued
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8f fthpage
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Create ink-pot
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\ border bkgnd pen 0
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6 c, 6 c, 3 c, 0 c, \ Forth
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0E c, 6 c, 3 c, 0 c, \ Edi
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6 c, 6 c, 3 c, 0 c, \ User
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\ *** Block No. 144, Hexblock 90
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90 fthpage
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\ C64 restore
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Label asave 0 c, Label 1save 0 c,
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Label continue
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pha 1save lda 1 sta pla rti
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Label restore sei asave sta
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continue $100 /mod
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# lda pha # lda pha php \ for RTI
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asave lda pha txa pha tya pha
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1 lda 1save sta
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$36 # lda 1 sta \ Basic off ROM on
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$7F # lda $DD0D sta
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$DD0D ldy 0< ?[
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Label 6526-NMI $FE72 jmp ]?
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UDTIM jsr STOP jsr \ RUN/STOP ?
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6526-NMI bne \ not >>-->
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' restart @ jmp end-code
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\ *** Block No. 145, Hexblock 91
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91 fthpage
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\ C64:Init 06nov87re
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: init-system $FF40 dup $C0 cmove
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[ restore ] Literal dup
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$FFFA ! $318 ! ; \ NMI-Vector to RAM
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Label first-init
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sei cld
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IOINIT jsr CINT jsr RESTOR jsr
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\ init. and set I/O-Vectors
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$36 # lda 01 sta \ Basic off
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ink-pot lda BrdCol sta \ border
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ink-pot 1+ lda BkgCol sta \ backgrnd
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ink-pot 2+ lda PenCol sta \ pen
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$80 # lda KeyRep sta \ repeat all keys
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$17 # lda $D018 sta \ low/upp +
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0 # lda $D01A sta \ VIC-IRQ off
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$1B # lda $D011 sta \ Textmode on
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4 # lda $288 sta \ low screen
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cli rts end-code
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first-init dup bootsystem 1+ !
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warmboot 1+ !
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Code c64init first-init jsr
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xyNext jmp end-code
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| Create (bye $FCE2 here 2- !
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