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added peek functions for soft80

This commit is contained in:
mrdudz 2017-12-28 01:58:03 +01:00
parent 9a8b7d9a23
commit 0543ecabe2
7 changed files with 323 additions and 0 deletions
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19
libsrc/c64/extra/soft80.s
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@ -15,6 +15,22 @@
.export _textcolor := soft80_textcolor ; color.s
.export _bgcolor := soft80_bgcolor ; color.s
; soft80_cpeekc.s
.import soft80_cpeekc
.export _cpeekc := soft80_cpeekc ; cpeekc.s
; soft80_cpeekcolor.s
.import soft80_cpeekcolor
.export _cpeekcolor := soft80_cpeekcolor ; cpeekcolor.s
; soft80_cpeekrevers.s
.import soft80_cpeekrevers
.export _cpeekrevers := soft80_cpeekrevers ; cpeekrevers.s
; soft80_cpeeks.s
.import soft80_cpeeks
.export _cpeeks := soft80_cpeeks ; cpeeks.s
; soft80_cputc.s
.import soft80_cputc
.import soft80_cputcxy
@ -50,3 +66,6 @@
; Chars used by chline () and cvline ()
.exportzp chlinechar = CH_HLINE
.exportzp cvlinechar = CH_VLINE
.import return1
.export _doesclrscrafterexit := return1

19
libsrc/c64/extra/soft80mono.s
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@ -18,6 +18,22 @@
.export _textcolor := soft80mono_textcolor ; color.s
.export _bgcolor := soft80mono_bgcolor ; color.s
; soft80mono_cpeekc.s
.import soft80_cpeekc
.export _cpeekc := soft80_cpeekc ; cpeekc.s
; soft80mono_cpeekcolor.s
.import soft80mono_cpeekcolor
.export _cpeekcolor := soft80mono_cpeekcolor ; cpeekcolor.s
; soft80mono_cpeekrevers.s
.import soft80_cpeekrevers
.export _cpeekrevers := soft80_cpeekrevers ; cpeekrevers.s
; soft80mono_cpeeks.s
.import soft80_cpeeks
.export _cpeeks := soft80_cpeeks ; cpeeks.s
; soft80mono_cputc.s
.import soft80mono_cputc
.import soft80mono_cputcxy
@ -53,3 +69,6 @@
; Chars used by chline () and cvline ()
.exportzp chlinechar = CH_HLINE
.exportzp cvlinechar = CH_VLINE
.import return1
.export _doesclrscrafterexit := return1

168
libsrc/c64/soft80_cpeekc.s Normal file
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@ -0,0 +1,168 @@
.export soft80_cpeekc, soft80_cpeekchar
.include "c64.inc"
.include "soft80.inc"
.macpack longbranch
.segment "CODE"
soft80_cpeekc:
jsr soft80_cpeekchar
ldx #0
rts
soft80_cpeekchar:
sei
;;dec $01 ;; assumed = $36
;;dec $01 ;; assumed = $36
lda #$34
sta $01
lda CURS_X
and #$01
jne @l1a
; test non-inverted character (left side)
ldx #0
@l2aa:
ldy #0
;; stx $d020
.repeat 8,line
;; jsr readdirect
lda (SCREEN_PTR),y
and #$f0
; sta $e100,y
cmp soft80_hi_charset+(line*$80),x
; cmp #0
bne @l2b
.if (line < 7)
iny
.endif
.endrepeat
@backok:
;inc $d020
; inc $01
; inc $01
lda #$36
sta $01
cli
txa ; return char in A
; sec
; sbc #$20
ldx #$00 ; revers flag
;inc $d020
rts
@l2b:
;jmp *
inx
cpx #$80
jne @l2aa
; test inverted character (left side)
ldx #0
@l2aa2:
ldy #0
;; stx $d020
.repeat 8,line
;; jsr readdirect
lda (SCREEN_PTR),y
and #$f0
eor #$f0
cmp soft80_hi_charset+(line*$80),x
; cmp #0
bne @l2b2
.if (line < 7)
iny
.endif
.endrepeat
@backokrevers:
;inc $d020
; inc $01
; inc $01
lda #$36
sta $01
cli
txa ; return char in A
; sec
; sbc #$20
ldx #$01 ; revers flag
;inc $d020
rts
@l2b2:
inx
cpx #$80
jne @l2aa2
@backerr:
;inc $d020
;; inc $01
;; inc $01
lda #$36
sta $01
cli
ldx #0
txa
rts
; test non-inverted character (right side)
@l1a:
ldx #0
@l1aa:
ldy #0
.repeat 8,line
;; jsr readdirect
lda (SCREEN_PTR),y
and #$0f
eor soft80_lo_charset+(line*$80),x
bne @l2bb
.if line < 7
iny
.endif
.endrepeat
jmp @backok
@l2bb:
inx
cpx #$80
bne @l1aa
; test inverted character (right side)
ldx #0
@l1aa2:
ldy #0
.repeat 8,line
;; jsr readdirect
lda (SCREEN_PTR),y
and #$0f
eor #$0f
eor soft80_lo_charset+(line*$80),x
bne @l2bb2
.if line < 7
iny
.endif
.endrepeat
jmp @backokrevers
@l2bb2:
inx
cpx #$80
bne @l1aa2
jmp @backerr

19
libsrc/c64/soft80_cpeekcolor.s Normal file
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@ -0,0 +1,19 @@
;
; 2017-12-27, Groepaz
;
; unsigned char cpeekcolor (void);
;
.export soft80_cpeekcolor
.include "c64.inc"
.include "soft80.inc"
.segment "CODE"
soft80_cpeekcolor:
ldy #0
lda (CRAM_PTR),y
and #$0f
ldx #0
rts

10
libsrc/c64/soft80_cpeekrevers.s Normal file
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@ -0,0 +1,10 @@
.import soft80_cpeekchar
.export soft80_cpeekrevers
soft80_cpeekrevers:
jsr soft80_cpeekchar
txa
ldx #0
rts

71
libsrc/c64/soft80_cpeeks.s Normal file
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@ -0,0 +1,71 @@
;
; 2017-12-27, groepaz
;
; void cpeeks (char* s, unsigned length);
;
.export soft80_cpeeks
.import soft80_cpeekc, soft80_kplot, popax
.importzp ptr1, ptr2
.include "c64.inc"
.include "soft80.inc"
soft80_cpeeks:
eor #<$FFFF ; counting a word upward is faster
sta ptr2 ; so, we use -(length + 1)
txa
eor #>$FFFF
sta ptr2+1
jsr popax
sta ptr1
stx ptr1+1
; save current cursor position
lda CURS_X
pha
lda CURS_Y
pha
; get the string
@lp:
jsr soft80_cpeekc
ldy #0
sta (ptr1),y
; advance cursor position
ldy CURS_X
ldx CURS_Y
iny
cpy #charsperline
bne @sk2
ldy #0
inx
@sk2:
sty CURS_X
stx CURS_Y
clc
jsr soft80_kplot
inc ptr1
bne @sk
inc ptr1+1
@sk:
inc ptr2
bne @lp
inc ptr2+1
bne @lp
; terminate the string
lda #0
ldy #0
sta (ptr1),y
; restore the cursor position
pla
tax ; CURS_Y
pla
tay ; CURS_X
clc
jmp soft80_kplot

17
libsrc/c64/soft80mono_cpeekcolor.s Normal file
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@ -0,0 +1,17 @@
;
; 2017-12-27, Groepaz
;
; unsigned char cpeekcolor (void);
;
.export soft80mono_cpeekcolor
.include "c64.inc"
.include "soft80.inc"
.segment "CODE"
soft80mono_cpeekcolor:
lda CHARCOLOR
ldx #0
rts