mirror of
https://github.com/cc65/cc65.git
synced 2024-12-23 04:30:10 +00:00
another size optimization, make bgcolor() much more robust
This commit is contained in:
mrdudz
parent
f462c173fb
commit
08d7eefdd7
@ -7,6 +7,8 @@
|
||||
|
||||
.export soft80_textcolor, soft80_bgcolor
|
||||
.import soft80_internal_textcolor, soft80_internal_bgcolor
|
||||
.import soft80_internal_cursorxlsb
|
||||
.import soft80_kplot, soft80_checkchar
|
||||
|
||||
.importzp tmp1, tmp2
|
||||
|
||||
@ -17,74 +19,6 @@ soft80_textcolor:
|
||||
ldx soft80_internal_textcolor ; get old value
|
||||
sta soft80_internal_textcolor ; set new value
|
||||
|
||||
jsr mkcharcolor
|
||||
|
||||
txa ; get old value
|
||||
rts
|
||||
|
||||
soft80_bgcolor:
|
||||
ldx soft80_internal_bgcolor ; get old value
|
||||
sta soft80_internal_bgcolor ; set new value
|
||||
|
||||
jsr mkcharcolor
|
||||
|
||||
stx tmp2 ; save old value
|
||||
|
||||
.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.
|
||||
; FIXME: perhaps we must also check if the non visible character is not
|
||||
; a space, and NOT update the color ram in that case.
|
||||
ldx #$00
|
||||
lp1:
|
||||
.repeat $4,page
|
||||
.scope
|
||||
lda soft80_colram+(page*250),x
|
||||
and #$0f
|
||||
cmp tmp2 ; old bg color
|
||||
bne @sk1
|
||||
lda soft80_internal_bgcolor ; new bg color
|
||||
sta soft80_colram+(page*250),x
|
||||
@sk1:
|
||||
.endscope
|
||||
.endrepeat
|
||||
|
||||
inx
|
||||
bne lp1
|
||||
.endif
|
||||
|
||||
sei
|
||||
ldy $01
|
||||
lda #$34 ; disable I/O
|
||||
sta $01
|
||||
|
||||
; if the old bg color is equal to text color in this cell, then also
|
||||
; update the text color to the new value.
|
||||
; FIXME: perhaps we need to check for space, see note above
|
||||
ldx #$00
|
||||
lp2:
|
||||
.repeat $4,page
|
||||
.scope
|
||||
lda soft80_vram+(page*250),x
|
||||
and #$0f
|
||||
cmp tmp2 ; old bg color
|
||||
bne @sk2
|
||||
lda soft80_internal_bgcolor ; new bg color
|
||||
@sk2:
|
||||
ora tmp1 ; new bg color (high nibble)
|
||||
sta soft80_vram+(page*250),x
|
||||
.endscope
|
||||
.endrepeat
|
||||
|
||||
inx
|
||||
bne lp2
|
||||
|
||||
sty $01 ; enable I/O
|
||||
cli
|
||||
|
||||
lda tmp2 ; get old value
|
||||
rts
|
||||
|
||||
mkcharcolor:
|
||||
lda soft80_internal_bgcolor
|
||||
asl a
|
||||
@ -94,6 +28,126 @@ mkcharcolor:
|
||||
sta tmp1 ; remember new bg color (high nibble)
|
||||
ora soft80_internal_textcolor
|
||||
sta CHARCOLOR ; 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
|
||||
|
||||
;-------------------------------------------------------------------------------
|
||||
|
||||
@ -8,6 +8,7 @@
|
||||
.export soft80_cputcxy, soft80_cputc
|
||||
.export soft80_cputdirect, soft80_putchar
|
||||
.export soft80_newline, soft80_plot
|
||||
.export soft80_checkchar
|
||||
|
||||
.import popa, _gotoxy
|
||||
|
||||
@ -470,15 +471,14 @@ soft80_putcolor:
|
||||
; test if there is a space or a character at current position
|
||||
;
|
||||
; in: x = $34
|
||||
; y must be $00
|
||||
; $01 must be $34
|
||||
;
|
||||
; out: SEC: space
|
||||
; CLC: character
|
||||
; x = $34
|
||||
; y = $00
|
||||
soft80_checkchar:
|
||||
|
||||
;ldy #$00 ; is still $00
|
||||
|
||||
lda soft80_internal_cursorxlsb
|
||||
bne @l1a
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user