mirror of
https://github.com/cc65/cc65.git
synced 2024-12-27 00:29:31 +00:00
160 lines
4.2 KiB
ArmAsm
160 lines
4.2 KiB
ArmAsm
;
|
|
; Groepaz/Hitmen, 12.10.2015
|
|
;
|
|
; high level implementation for the soft80 implementation
|
|
;
|
|
; unsigned char __fastcall__ textcolor (unsigned char color);
|
|
; unsigned char __fastcall__ bgcolor (unsigned char color);
|
|
;
|
|
|
|
.export soft80_textcolor, soft80_bgcolor
|
|
.import soft80_internal_cellcolor, soft80_internal_bgcolor
|
|
.import soft80_internal_cursorxlsb
|
|
.import soft80_kplot, soft80_checkchar
|
|
|
|
.importzp tmp1, tmp2
|
|
|
|
.include "c64.inc"
|
|
.include "soft80.inc"
|
|
|
|
soft80_textcolor:
|
|
ldx CHARCOLOR ; get old value
|
|
sta CHARCOLOR ; set new value
|
|
|
|
mkcharcolor:
|
|
lda soft80_internal_bgcolor
|
|
asl a
|
|
asl a
|
|
asl a
|
|
asl a
|
|
sta tmp1 ; remember new bg color (high nibble)
|
|
ora CHARCOLOR
|
|
sta soft80_internal_cellcolor ; text/bg combo for new chars
|
|
|
|
txa ; get old value
|
|
rts
|
|
|
|
soft80_bgcolor:
|
|
ldx soft80_internal_bgcolor ; get old value
|
|
stx tmp2 ; save old value
|
|
sta soft80_internal_bgcolor ; set new value
|
|
|
|
jsr mkcharcolor
|
|
|
|
lda CURS_X
|
|
pha
|
|
lda CURS_Y
|
|
pha
|
|
|
|
ldy #0
|
|
ldx #0
|
|
clc
|
|
jsr soft80_kplot
|
|
|
|
sei
|
|
lda $01
|
|
pha
|
|
ldx #$34
|
|
stx $01 ; $34
|
|
|
|
;ldy #0 ; is still 0
|
|
|
|
lda #24
|
|
sta CURS_Y
|
|
lpy:
|
|
lda #39
|
|
sta CURS_X
|
|
lpx:
|
|
|
|
.if SOFT80COLORVOODOO = 1
|
|
; if the old bg color is equal to color ram of that cell, then also
|
|
; update the color ram to the new value.
|
|
|
|
inc $01 ; $35
|
|
lda (CRAM_PTR),y ; colram
|
|
stx $01 ; $34
|
|
|
|
and #$0f
|
|
cmp tmp2 ; old bg color
|
|
bne @sk1
|
|
|
|
; if the left character in the cell is not a space, then dont update
|
|
; the color ram
|
|
lda #1
|
|
sta soft80_internal_cursorxlsb
|
|
jsr soft80_checkchar
|
|
bcc @sk1
|
|
lda soft80_internal_bgcolor ; new bg color
|
|
|
|
inc $01 ; $35
|
|
sta (CRAM_PTR),y ; colram
|
|
stx $01 ; $34
|
|
@sk1:
|
|
.endif
|
|
; if the old bg color is equal to text color in this cell, then also
|
|
; update the text color to the new value.
|
|
|
|
lda (CRAM_PTR),y ; vram
|
|
and #$0f
|
|
cmp tmp2 ; old bg color
|
|
bne @sk2
|
|
|
|
; if there are non space characters in the cell, do not update the
|
|
; color ram
|
|
pha
|
|
lda #0
|
|
sta soft80_internal_cursorxlsb
|
|
jsr soft80_checkchar
|
|
pla
|
|
bcc @sk2
|
|
|
|
pha
|
|
inc soft80_internal_cursorxlsb
|
|
jsr soft80_checkchar
|
|
pla
|
|
bcc @sk2
|
|
|
|
lda soft80_internal_bgcolor ; new bg color
|
|
@sk2:
|
|
ora tmp1 ; new bg color (high nibble)
|
|
sta (CRAM_PTR),y ; vram
|
|
|
|
inc CRAM_PTR
|
|
bne @sk3
|
|
inc CRAM_PTR+1
|
|
@sk3:
|
|
|
|
lda SCREEN_PTR
|
|
clc
|
|
adc #8
|
|
sta SCREEN_PTR
|
|
bcc @sk4
|
|
inc SCREEN_PTR+1
|
|
@sk4:
|
|
|
|
dec CURS_X
|
|
bpl lpx
|
|
|
|
dec CURS_Y
|
|
bpl lpy
|
|
|
|
pla
|
|
sta $01 ; enable I/O
|
|
cli
|
|
|
|
pla ; CURS_Y
|
|
tax
|
|
pla ; CURS_X
|
|
tay
|
|
clc
|
|
jsr soft80_kplot
|
|
|
|
lda tmp2 ; get old value
|
|
rts
|
|
|
|
;-------------------------------------------------------------------------------
|
|
; force the init constructor to be imported
|
|
|
|
.import soft80_init
|
|
conio_init = soft80_init
|