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include bitmap and vram row tables directly rather than generating them (saves space)

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This commit is contained in:
mrdudz 2015-09-27 18:49:30 +02:00
parent fba28f46f6
commit b5a6578dca
2 changed files with 16 additions and 59 deletions
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4
libsrc/c64/soft80_conio.s
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@ -5,7 +5,7 @@
.constructor soft80_init, 24
.destructor soft80_shutdown
.import soft80_kclrscr, soft80_plotinit
.import soft80_kclrscr
.import soft80_textcolor, soft80_bgcolor
.include "c64.inc"
@ -50,8 +50,6 @@ soft80_init:
sta $01
cli
jsr soft80_plotinit
lda 646 ; use current textcolor
jsr soft80_textcolor

71
libsrc/c64/soft80_kplot.s
View File

@ -1,6 +1,5 @@
.export soft80_kplot
.export soft80_plotinit
.include "c64.inc"
.include "soft80.inc"
@ -32,70 +31,30 @@ soft80_kplot:
ldy CURS_X
rts
; FIXME: perhaps just include the respective tables directly?
soft80_plotinit:
; create screen-rows base tables (bitmap)
lda #<soft80_bitmap
sta SCREEN_PTR
lda #>soft80_bitmap
sta SCREEN_PTR+1
ldx #$00
l1:
lda SCREEN_PTR
sta _bitmaplo,x
clc
adc #<(40*8)
sta SCREEN_PTR
lda SCREEN_PTR+1
sta _bitmaphi,x
adc #>(40*8)
sta SCREEN_PTR+1
inx
cpx #25
bne l1
; create screen-rows base tables (colorram)
lda #<soft80_vram
sta CRAM_PTR
lda #>soft80_vram
sta CRAM_PTR+1
ldx #$00
l1b:
lda CRAM_PTR
sta _vramlo,x
clc
adc #<(40)
sta CRAM_PTR
lda CRAM_PTR+1
sta _vramhi,x
adc #>(40)
sta CRAM_PTR+1
inx
cpx #25
bne l1b
rts
.rodata
_bitmapxlo:
.repeat 80,col1
.byte <((col1/2)*8)
.repeat 80,col
.byte <((col/2)*8)
.endrepeat
_bitmapxhi:
.repeat 80,col
.byte >((col/2)*8)
.endrepeat
.bss
_vramlo:
.res 25
.repeat 25,row
.byte <(soft80_vram+(row*40))
.endrepeat
_vramhi:
.res 25
.repeat 25,row
.byte >(soft80_vram+(row*40))
.endrepeat
_bitmaplo:
.res 25
.repeat 25,row
.byte <(soft80_bitmap+(row*40*8))
.endrepeat
_bitmaphi:
.res 25
.repeat 25,row
.byte >(soft80_bitmap+(row*40*8))
.endrepeat