mirror of
https://github.com/cc65/cc65.git
synced 2024-10-01 00:57:11 +00:00
some more rework, second attempt on fixing the color issues. added ifdefs to disable the color voodoo alltogether for debugging purposes.
This commit is contained in:
mrdudz
parent
67dabb8489
commit
e54ad81ce8
@ -21,3 +21,10 @@ CH_BTEE = 177
|
||||
CH_TTEE = 178
|
||||
CH_RTEE = 179
|
||||
CH_LRCORNER = 189
|
||||
|
||||
;-------------------------------------------------------------------------------
|
||||
; set to 0 to disable the color-ram "voodoo" for debugging purposes
|
||||
.define SOFT80COLORVOODOO 1
|
||||
; set to 0 to disable special case optimization for the "space" character
|
||||
.define SOFT80FASTSPACE 1
|
||||
|
||||
|
||||
@ -4,87 +4,66 @@
|
||||
|
||||
.export soft80_cgetc
|
||||
.import cursor
|
||||
.import soft80_putcolor
|
||||
|
||||
.include "c64.inc"
|
||||
.include "soft80.inc"
|
||||
|
||||
.if SOFT80COLORVOODOO = 1
|
||||
.import soft80_putcolor
|
||||
.endif
|
||||
|
||||
soft80_cgetc:
|
||||
lda KEY_COUNT ; Get number of characters
|
||||
bne L3 ; Jump if there are already chars waiting
|
||||
|
||||
; Switch on the cursor if needed
|
||||
|
||||
lda cursor
|
||||
jsr setcursor ; set cursor on or off accordingly
|
||||
jsr invertcursor ; set cursor on or off accordingly
|
||||
|
||||
L1: lda KEY_COUNT ; wait for key
|
||||
beq L1
|
||||
|
||||
ldx #0
|
||||
lda CURS_FLAG
|
||||
bne L2
|
||||
inx
|
||||
L2: txa
|
||||
jsr setcursor
|
||||
jsr invertcursor ; set cursor on or off accordingly
|
||||
|
||||
L3: jsr KBDREAD ; Read char and return in A
|
||||
ldx #0
|
||||
rts
|
||||
|
||||
; Switch the cursor on or off
|
||||
; Switch the cursor on or off (invert)
|
||||
|
||||
; A= 0: cursor off
|
||||
; 1: cursor on
|
||||
|
||||
.proc setcursor
|
||||
|
||||
; On or off?
|
||||
cmp CURS_STATE
|
||||
bne @set
|
||||
invertcursor:
|
||||
lda cursor
|
||||
bne @invert
|
||||
rts
|
||||
@set:
|
||||
sta CURS_STATE
|
||||
@invert:
|
||||
|
||||
sei
|
||||
lda $01
|
||||
pha
|
||||
lda #$34
|
||||
lda #$34 ; enable RAM under I/O
|
||||
sta $01
|
||||
|
||||
jsr soft80_putcolor
|
||||
|
||||
ldy #$00
|
||||
.if SOFT80COLORVOODOO = 1
|
||||
jsr soft80_putcolor
|
||||
.else
|
||||
lda CHARCOLOR
|
||||
sta (CRAM_PTR),y ; vram
|
||||
.endif
|
||||
|
||||
lda CURS_X
|
||||
and #$01
|
||||
bne @l1
|
||||
|
||||
.repeat 8,line
|
||||
tax
|
||||
@lp1:
|
||||
lda (SCREEN_PTR),y
|
||||
eor #$f0
|
||||
eor nibble,x
|
||||
sta (SCREEN_PTR),y
|
||||
.if (line < 7)
|
||||
iny
|
||||
.endif
|
||||
.endrepeat
|
||||
cpy #8
|
||||
bne @lp1
|
||||
|
||||
@back:
|
||||
pla
|
||||
sta $01
|
||||
cli
|
||||
rts
|
||||
|
||||
@l1:
|
||||
.repeat 8,line
|
||||
lda (SCREEN_PTR),y
|
||||
eor #$0f
|
||||
sta (SCREEN_PTR),y
|
||||
.if line < 7
|
||||
iny
|
||||
.endif
|
||||
.endrepeat
|
||||
|
||||
jmp @back
|
||||
|
||||
.endproc
|
||||
.rodata
|
||||
nibble: .byte $f0, $0f
|
||||
|
||||
@ -30,57 +30,54 @@ soft80_bgcolor:
|
||||
|
||||
jsr mkcharcolor
|
||||
|
||||
.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 $3,page
|
||||
.repeat $4,page
|
||||
.scope
|
||||
lda soft80_colram+(page*$100),x
|
||||
lda soft80_colram+(page*250),x
|
||||
and #$0f
|
||||
cmp tmp2 ; old bg color
|
||||
bne @sk1
|
||||
lda __bgcolor
|
||||
sta soft80_colram+(page*$100),x
|
||||
lda __bgcolor ; new bg color
|
||||
sta soft80_colram+(page*250),x
|
||||
@sk1:
|
||||
.endscope
|
||||
.endrepeat
|
||||
|
||||
.scope
|
||||
lda soft80_colram+$2e8,x
|
||||
and #$0f
|
||||
cmp tmp2 ; old bg color
|
||||
bne @sk1
|
||||
lda __bgcolor
|
||||
sta soft80_colram+$2e8,x
|
||||
@sk1:
|
||||
.endscope
|
||||
|
||||
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 $3,page
|
||||
lda soft80_vram+(page*$100),x
|
||||
lp2:
|
||||
.repeat $4,page
|
||||
.scope
|
||||
lda soft80_vram+(page*250),x
|
||||
and #$0f
|
||||
cmp tmp2 ; old bg color
|
||||
bne @sk2
|
||||
lda __bgcolor ; new bg color
|
||||
@sk2:
|
||||
ora tmp1 ; new bg color (high nibble)
|
||||
sta soft80_vram+(page*$100),x
|
||||
sta soft80_vram+(page*250),x
|
||||
.endscope
|
||||
.endrepeat
|
||||
lda soft80_vram+$2e8,x
|
||||
and #$0f
|
||||
ora tmp1 ; new bg color (high nibble)
|
||||
sta soft80_vram+$2e8,x
|
||||
|
||||
inx
|
||||
bne @lp2
|
||||
bne lp2
|
||||
|
||||
sty $01 ; enable I/O
|
||||
cli
|
||||
|
||||
@ -6,7 +6,7 @@
|
||||
.destructor soft80_shutdown
|
||||
|
||||
.import soft80_kclrscr
|
||||
.import soft80_textcolor, soft80_bgcolor
|
||||
.import __textcolor, __bgcolor
|
||||
|
||||
.importzp ptr1, ptr2, ptr3
|
||||
|
||||
@ -67,11 +67,18 @@ soft80_init:
|
||||
cli
|
||||
|
||||
lda 646 ; use current textcolor
|
||||
jsr soft80_textcolor
|
||||
and #$0f
|
||||
sta __textcolor
|
||||
|
||||
lda VIC_BG_COLOR0 ; use current bgcolor
|
||||
and #$0f
|
||||
jsr soft80_bgcolor
|
||||
sta __bgcolor
|
||||
asl a
|
||||
asl a
|
||||
asl a
|
||||
asl a
|
||||
ora __textcolor
|
||||
sta CHARCOLOR
|
||||
|
||||
jmp soft80_kclrscr
|
||||
|
||||
|
||||
@ -5,7 +5,6 @@
|
||||
|
||||
.export soft80_cputcxy, soft80_cputc
|
||||
.export soft80_cputdirect, soft80_putchar
|
||||
.export soft80_putcolor
|
||||
.export soft80_newline, soft80_plot
|
||||
|
||||
.import popa, _gotoxy
|
||||
@ -20,6 +19,10 @@
|
||||
.include "c64.inc"
|
||||
.include "soft80.inc"
|
||||
|
||||
.if SOFT80COLORVOODOO = 1
|
||||
.export soft80_putcolor
|
||||
.endif
|
||||
|
||||
soft80_cputcxy:
|
||||
pha ; Save C
|
||||
jsr popa ; Get Y
|
||||
@ -125,163 +128,17 @@ L5:
|
||||
; returns: Y: cursor X position
|
||||
; this function is going to be used a lot so we unroll it a bit for speed
|
||||
|
||||
;--- start color vodoo
|
||||
|
||||
; remove color from cell
|
||||
; y unmodified
|
||||
remcolor:
|
||||
|
||||
;ldy #$00 ; is still $00
|
||||
|
||||
lda (CRAM_PTR),y ; vram
|
||||
and #$0f
|
||||
cmp __bgcolor
|
||||
jeq @l2b ; vram==bgcolor
|
||||
|
||||
inc $01
|
||||
lda (CRAM_PTR),y ; colram
|
||||
stx $01 ;$34
|
||||
and #$0f
|
||||
cmp __bgcolor
|
||||
beq @l2s ; colram==bgcolor
|
||||
|
||||
; vram = colram
|
||||
;inc $01
|
||||
;lda (CRAM_PTR),y ; colram
|
||||
;stx $01 ;$34
|
||||
;and #$0f
|
||||
|
||||
sta tmp3
|
||||
lda (CRAM_PTR),y ; vram
|
||||
and #$f0
|
||||
ora tmp3
|
||||
sta (CRAM_PTR),y ; vram
|
||||
|
||||
; colram = bgcolor
|
||||
lda __bgcolor
|
||||
inc $01
|
||||
sta (CRAM_PTR),y ; colram
|
||||
stx $01 ;$34
|
||||
|
||||
jmp @l2b
|
||||
|
||||
@l2s:
|
||||
; colram is bgcolor
|
||||
; => only one char in cell used
|
||||
|
||||
jsr soft80_checkchar
|
||||
bcc @l2b ; space at current position
|
||||
|
||||
; vram = bgcolor
|
||||
lda (CRAM_PTR),y ; vram
|
||||
and #$f0
|
||||
ora __bgcolor
|
||||
sta (CRAM_PTR),y ; vram
|
||||
@l2b:
|
||||
rts
|
||||
|
||||
; put color to cell
|
||||
; y unmodified
|
||||
soft80_putcolor:
|
||||
|
||||
;ldy #$00 ; is still $00
|
||||
|
||||
lda (CRAM_PTR),y ; vram
|
||||
and #$0f
|
||||
cmp __bgcolor
|
||||
beq @l2s ; vram==bgcolor => first char in cell
|
||||
|
||||
; vram!=bgcolor => second char in cell
|
||||
|
||||
inc $01 ;$35
|
||||
lda (CRAM_PTR),y ; colram
|
||||
stx $01 ;$34
|
||||
and #$0f
|
||||
cmp __bgcolor
|
||||
bne @l2s ; colram!=bgcolor
|
||||
|
||||
; colram==bgcolor => second char in cell or overwrite 1st char
|
||||
|
||||
jsr soft80_checkchar
|
||||
bcs @l2a ; char at current position => overwrite 1st
|
||||
|
||||
; colram=vram
|
||||
lda (CRAM_PTR),y ; vram
|
||||
inc $01
|
||||
sta (CRAM_PTR),y ; colram
|
||||
stx $01 ;$34
|
||||
|
||||
;jmp @l2a
|
||||
|
||||
@l2s:
|
||||
; colram!=bgcolor => alread 2 chars in cell
|
||||
@l2a:
|
||||
|
||||
; Set color
|
||||
lda CHARCOLOR
|
||||
sta (CRAM_PTR),y ; vram
|
||||
|
||||
rts
|
||||
|
||||
|
||||
;--- end color vodoo
|
||||
|
||||
.export soft80_checkchar
|
||||
|
||||
; test if there is a space or a character at current position
|
||||
; CLC: space SEC: character
|
||||
soft80_checkchar:
|
||||
|
||||
;ldy #$00 ; is still $00
|
||||
|
||||
lda CURS_X
|
||||
and #$01
|
||||
jne @l1a
|
||||
|
||||
.repeat 8,line
|
||||
lda (SCREEN_PTR),y
|
||||
and #$f0
|
||||
cmp #$f0
|
||||
bne @l2b
|
||||
.if (line < 7)
|
||||
iny
|
||||
.endif
|
||||
.endrepeat
|
||||
|
||||
ldy #$00
|
||||
clc
|
||||
rts
|
||||
@l2b:
|
||||
ldy #$00
|
||||
sec
|
||||
rts
|
||||
@l1a:
|
||||
.repeat 8,line
|
||||
lda (SCREEN_PTR),y
|
||||
and #$0f
|
||||
cmp #$0f
|
||||
bne @l2bb
|
||||
.if line < 7
|
||||
iny
|
||||
.endif
|
||||
.endrepeat
|
||||
ldy #$00
|
||||
clc
|
||||
rts
|
||||
@l2bb:
|
||||
ldy #$00
|
||||
sec
|
||||
rts
|
||||
|
||||
.if SOFT80FASTSPACE = 1
|
||||
; output space
|
||||
|
||||
; in: y must be $00
|
||||
_space:
|
||||
|
||||
lda RVS
|
||||
jne _spaceinvers
|
||||
|
||||
.if SOFT80COLORVOODOO = 1
|
||||
jsr remcolor
|
||||
|
||||
.endif
|
||||
;ldy #$00 ; is still $00
|
||||
|
||||
lda CURS_X
|
||||
@ -310,10 +167,15 @@ _space:
|
||||
jmp _back
|
||||
|
||||
; output inverted space
|
||||
|
||||
; in: y must be $00
|
||||
_spaceinvers:
|
||||
|
||||
.if SOFT80COLORVOODOO = 1
|
||||
jsr soft80_putcolor
|
||||
.else
|
||||
lda CHARCOLOR
|
||||
sta (CRAM_PTR),y ; vram
|
||||
.endif
|
||||
|
||||
lda CURS_X
|
||||
and #$01
|
||||
@ -339,11 +201,12 @@ _spaceinvers:
|
||||
.endrepeat
|
||||
|
||||
jmp _back
|
||||
.endif
|
||||
|
||||
; output a character
|
||||
|
||||
soft80_putchar:
|
||||
sta tmp3
|
||||
sta tmp3 ; remember charcode
|
||||
|
||||
sei
|
||||
ldx $01
|
||||
@ -353,14 +216,20 @@ soft80_putchar:
|
||||
stx $01 ; will stay $34 for space
|
||||
ldy #$00 ; will be $00 from now on
|
||||
|
||||
.if SOFT80FASTSPACE = 1
|
||||
cmp #' ' ; space is a special (optimized) case
|
||||
jeq _space
|
||||
.endif
|
||||
|
||||
.if SOFT80COLORVOODOO = 1
|
||||
jsr soft80_putcolor
|
||||
.else
|
||||
lda CHARCOLOR
|
||||
sta (CRAM_PTR),y ; vram
|
||||
.endif
|
||||
; output character
|
||||
|
||||
; output character
|
||||
char:
|
||||
ldx tmp3
|
||||
ldx tmp3 ; get charcode
|
||||
|
||||
lda RVS
|
||||
jne _invers
|
||||
@ -429,3 +298,166 @@ _invers:
|
||||
.endif
|
||||
.endrepeat
|
||||
jmp _back
|
||||
|
||||
;-------------------------------------------------------------------------------
|
||||
|
||||
.if SOFT80COLORVOODOO = 1
|
||||
;--- start color vodoo
|
||||
|
||||
; remove color from cell, called before putting a "space" character to the bitmap
|
||||
; y unmodified
|
||||
remcolor:
|
||||
|
||||
;ldy #$00 ; is still $00
|
||||
|
||||
; if the textcolor in vram is equal to the background color, then
|
||||
; no (visible) character is in the current cell and we can exit
|
||||
; immediately.
|
||||
lda (CRAM_PTR),y ; vram (textcolor)
|
||||
and #$0f
|
||||
cmp __bgcolor
|
||||
jeq @l2b ; yes, vram==bgcolor
|
||||
|
||||
; now check if the textcolor in color ram is equal the background color,
|
||||
; if yes then there is only one (visible) character in the current cell
|
||||
inc $01
|
||||
lda (CRAM_PTR),y ; colram (2nd textcolor)
|
||||
stx $01 ;$34
|
||||
and #$0f
|
||||
cmp __bgcolor
|
||||
beq @l2s ; yes, colram==bgcolor
|
||||
|
||||
; two characters in the current cell, of which one will get removed
|
||||
|
||||
; vram = colram
|
||||
;inc $01
|
||||
;lda (CRAM_PTR),y ; colram
|
||||
;stx $01 ;$34
|
||||
;and #$0f
|
||||
|
||||
; move 2nd text color to vram
|
||||
sta tmp3
|
||||
lda (CRAM_PTR),y ; vram
|
||||
and #$f0
|
||||
ora tmp3
|
||||
sta (CRAM_PTR),y ; vram
|
||||
|
||||
; colram = bgcolor
|
||||
lda __bgcolor
|
||||
inc $01
|
||||
sta (CRAM_PTR),y ; colram
|
||||
stx $01 ;$34
|
||||
|
||||
jmp @l2b
|
||||
|
||||
@l2s:
|
||||
; colram is bgcolor
|
||||
; => only one char in cell used
|
||||
|
||||
jsr soft80_checkchar
|
||||
bcc @l2b ; space at current position
|
||||
|
||||
; vram (textcolor) = bgcolor
|
||||
lda (CRAM_PTR),y ; vram
|
||||
and #$f0
|
||||
ora __bgcolor
|
||||
sta (CRAM_PTR),y ; vram
|
||||
@l2b:
|
||||
rts
|
||||
|
||||
; put color to cell
|
||||
; in: $01 is $34 (RAM under I/O) when entering
|
||||
; y must be $00
|
||||
; out: y = $00
|
||||
soft80_putcolor:
|
||||
|
||||
;ldy #$00 ; is still $00
|
||||
|
||||
lda (CRAM_PTR),y ; vram
|
||||
and #$0f
|
||||
cmp __bgcolor
|
||||
beq @l2s ; vram==bgcolor => first char in cell
|
||||
|
||||
; vram!=bgcolor => second char in cell
|
||||
|
||||
inc $01 ;$35
|
||||
lda (CRAM_PTR),y ; colram
|
||||
stx $01 ;$34
|
||||
and #$0f
|
||||
cmp __bgcolor
|
||||
bne @l2s ; colram!=bgcolor
|
||||
|
||||
; colram==bgcolor => second char in cell or overwrite 1st char
|
||||
|
||||
jsr soft80_checkchar
|
||||
bcs @l2a ; char at current position => overwrite 1st
|
||||
|
||||
; colram=vram
|
||||
lda (CRAM_PTR),y ; vram
|
||||
inc $01
|
||||
sta (CRAM_PTR),y ; colram
|
||||
stx $01 ;$34
|
||||
|
||||
;jmp @l2a
|
||||
|
||||
@l2s:
|
||||
; colram!=bgcolor => alread 2 chars in cell
|
||||
@l2a:
|
||||
|
||||
; Set color
|
||||
lda CHARCOLOR
|
||||
sta (CRAM_PTR),y ; vram
|
||||
|
||||
rts
|
||||
|
||||
;.export soft80_checkchar
|
||||
|
||||
; test if there is a space or a character at current position
|
||||
; in: y must be $00
|
||||
; out: CLC: space SEC: character
|
||||
; y = $00
|
||||
soft80_checkchar:
|
||||
|
||||
;ldy #$00 ; is still $00
|
||||
|
||||
lda CURS_X
|
||||
and #$01
|
||||
jne @l1a
|
||||
|
||||
.repeat 8,line
|
||||
lda (SCREEN_PTR),y
|
||||
and #$f0
|
||||
cmp #$f0
|
||||
bne @l2b
|
||||
.if (line < 7)
|
||||
iny
|
||||
.endif
|
||||
.endrepeat
|
||||
|
||||
ldy #$00
|
||||
clc
|
||||
rts
|
||||
@l2b:
|
||||
ldy #$00
|
||||
sec
|
||||
rts
|
||||
@l1a:
|
||||
.repeat 8,line
|
||||
lda (SCREEN_PTR),y
|
||||
and #$0f
|
||||
cmp #$0f
|
||||
bne @l2bb
|
||||
.if line < 7
|
||||
iny
|
||||
.endif
|
||||
.endrepeat
|
||||
ldy #$00
|
||||
clc
|
||||
rts
|
||||
@l2bb:
|
||||
ldy #$00
|
||||
sec
|
||||
rts
|
||||
|
||||
;--- end color vodoo
|
||||
.endif
|
||||
|
||||
@ -33,9 +33,14 @@ soft80_kclrscr:
|
||||
inx
|
||||
bne @lp3
|
||||
|
||||
.if SOFT80COLORVOODOO = 1
|
||||
lda __bgcolor
|
||||
jsr clear ; clear color ram
|
||||
.endif
|
||||
|
||||
sei
|
||||
ldy $01
|
||||
lda #$34
|
||||
lda #$34 ; enable RAM under I/O
|
||||
sta $01
|
||||
|
||||
lda CHARCOLOR
|
||||
@ -43,11 +48,6 @@ soft80_kclrscr:
|
||||
ora __bgcolor
|
||||
jsr clear ; clear vram
|
||||
|
||||
inc $01 ; -> $35
|
||||
|
||||
lda __bgcolor
|
||||
jsr clear ; clear color ram
|
||||
|
||||
sty $01
|
||||
cli
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user