mirror of
https://github.com/cc65/cc65.git
synced 2025-01-19 17:31:31 +00:00
some code shuffling to get rid of long branches
This commit is contained in:
mrdudz
parent
cf8b21b27e
commit
ead9950044
@ -70,6 +70,10 @@ soft80_init:
|
||||
sta $01
|
||||
cli
|
||||
|
||||
; the "color voodoo" in other parts of the code relies on the vram and
|
||||
; colorram being set up as expected, which is why we cant use the
|
||||
; _bgcolor and _textcolor functions here.
|
||||
|
||||
lda 646 ; use current textcolor
|
||||
and #$0f
|
||||
sta soft80_internal_textcolor
|
||||
|
||||
@ -10,22 +10,16 @@
|
||||
.export soft80_newline, soft80_plot
|
||||
|
||||
.import popa, _gotoxy
|
||||
.import xsize
|
||||
|
||||
.import soft80_kplot
|
||||
.import soft80_internal_bgcolor, soft80_internal_textcolor
|
||||
.import soft80_internal_cursorxlsb
|
||||
|
||||
.importzp tmp4,tmp3
|
||||
|
||||
.macpack longbranch
|
||||
|
||||
.include "c64.inc"
|
||||
.include "soft80.inc"
|
||||
|
||||
.if SOFT80COLORVOODOO = 1
|
||||
.export soft80_putcolor
|
||||
.endif
|
||||
|
||||
soft80_cputcxy:
|
||||
pha ; Save C
|
||||
jsr popa ; Get Y
|
||||
@ -51,10 +45,18 @@ soft80_plot:
|
||||
L1: cmp #$0D ; LF?
|
||||
beq soft80_newline ; Recalculate pointers
|
||||
|
||||
; Printable char of some sort
|
||||
; shortcut for codes < $80 ... codes $20-$7f can be printed directly,
|
||||
; codes $00-$1f are control codes which are not printable and thus may
|
||||
; give undefined result.
|
||||
tay
|
||||
bpl L10
|
||||
|
||||
; codes $80-$ff must get converted like this:
|
||||
; $80-$9f -> dont care (control codes)
|
||||
; $a0-$bf -> $00-$1f
|
||||
; $c0-$df -> $60-$7f
|
||||
; $e0-$ff -> $00-$1f
|
||||
|
||||
; extra check for petscii codes 160-191, these have been moved to
|
||||
; 0-31 in the charset
|
||||
and #%11100000
|
||||
@ -77,9 +79,7 @@ L10:
|
||||
soft80_cputdirect:
|
||||
jsr soft80_putchar ; Write the character to the screen
|
||||
|
||||
; Advance cursor position
|
||||
|
||||
advance:
|
||||
; Advance cursor position
|
||||
iny ; contains CURS_X
|
||||
cpy #charsperline
|
||||
beq L3
|
||||
@ -130,53 +130,29 @@ L5:
|
||||
inc CURS_Y
|
||||
rts
|
||||
|
||||
; Write one character to the screen without doing anything else
|
||||
; in: A: character
|
||||
; returns: Y: cursor X position
|
||||
; this function is going to be used a lot so we unroll it a bit for speed
|
||||
;-------------------------------------------------------------------------------
|
||||
; All following code belongs to the character output to bitmap
|
||||
;
|
||||
; this stuff is going to be used a lot so we unroll it a bit for speed
|
||||
;-------------------------------------------------------------------------------
|
||||
|
||||
.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
|
||||
;and #$01
|
||||
lda soft80_internal_cursorxlsb
|
||||
bne @l1
|
||||
|
||||
; output inverted space (odd)
|
||||
draw_spaceinvers_odd:
|
||||
.repeat 8,line
|
||||
lda (SCREEN_PTR),y
|
||||
ora #$f0
|
||||
sta (SCREEN_PTR),y
|
||||
.if (line < 7)
|
||||
iny
|
||||
.endif
|
||||
.endrepeat
|
||||
jmp _back
|
||||
@l1:
|
||||
.repeat 8,line
|
||||
lda (SCREEN_PTR),y
|
||||
ora #$0f
|
||||
and #$f0
|
||||
sta (SCREEN_PTR),y
|
||||
.if line < 7
|
||||
iny
|
||||
.endif
|
||||
.endrepeat
|
||||
@l2:
|
||||
jmp _back
|
||||
jmp draw_back
|
||||
|
||||
; output inverted space
|
||||
; output inverted space (general entry point)
|
||||
; in: y must be $00
|
||||
_spaceinvers:
|
||||
draw_spaceinvers:
|
||||
|
||||
.if SOFT80COLORVOODOO = 1
|
||||
jsr soft80_putcolor
|
||||
@ -188,8 +164,9 @@ _spaceinvers:
|
||||
;lda CURS_X
|
||||
;and #$01
|
||||
lda soft80_internal_cursorxlsb
|
||||
bne @l1
|
||||
bne draw_spaceinvers_odd
|
||||
|
||||
; output inverted space (even)
|
||||
.repeat 8,line
|
||||
lda (SCREEN_PTR),y
|
||||
and #$0f
|
||||
@ -198,23 +175,57 @@ _spaceinvers:
|
||||
iny
|
||||
.endif
|
||||
.endrepeat
|
||||
jmp _back
|
||||
@l1:
|
||||
jmp draw_back
|
||||
|
||||
; output space (odd)
|
||||
draw_space_odd:
|
||||
.repeat 8,line
|
||||
lda (SCREEN_PTR),y
|
||||
and #$f0
|
||||
ora #$0f
|
||||
sta (SCREEN_PTR),y
|
||||
.if line < 7
|
||||
iny
|
||||
.endif
|
||||
.endrepeat
|
||||
jmp draw_back
|
||||
|
||||
jmp _back
|
||||
; output space (general entry point)
|
||||
; in: y must be $00
|
||||
draw_space:
|
||||
|
||||
lda RVS
|
||||
bne draw_spaceinvers
|
||||
|
||||
.if SOFT80COLORVOODOO = 1
|
||||
jsr remcolor
|
||||
.endif
|
||||
;ldy #$00 ; is still $00
|
||||
|
||||
;lda CURS_X
|
||||
;and #$01
|
||||
lda soft80_internal_cursorxlsb
|
||||
bne draw_space_odd
|
||||
|
||||
; output space (even)
|
||||
.repeat 8,line
|
||||
lda (SCREEN_PTR),y
|
||||
ora #$f0
|
||||
sta (SCREEN_PTR),y
|
||||
.if (line < 7)
|
||||
iny
|
||||
.endif
|
||||
.endrepeat
|
||||
jmp draw_back
|
||||
.endif
|
||||
|
||||
; entry point for outputting one character in internal encoding
|
||||
; without advancing cursor position
|
||||
; - the following may not modify tmp1
|
||||
;-------------------------------------------------------------------------------
|
||||
; output one character in internal encoding without advancing cursor position
|
||||
; generic entry point
|
||||
;
|
||||
; - the following may not modify tmp1
|
||||
; in: A: charcode
|
||||
; out: Y: CURS_X
|
||||
;
|
||||
soft80_putchar:
|
||||
sta tmp3 ; remember charcode
|
||||
|
||||
@ -228,7 +239,7 @@ soft80_putchar:
|
||||
|
||||
.if SOFT80FASTSPACE = 1
|
||||
cmp #' ' ; space is a special (optimized) case
|
||||
jeq _space
|
||||
beq draw_space
|
||||
.endif
|
||||
|
||||
.if SOFT80COLORVOODOO = 1
|
||||
@ -237,18 +248,18 @@ soft80_putchar:
|
||||
lda CHARCOLOR
|
||||
sta (CRAM_PTR),y ; vram
|
||||
.endif
|
||||
; output character
|
||||
|
||||
; output character
|
||||
ldx tmp3 ; get charcode
|
||||
|
||||
lda RVS
|
||||
jne _invers
|
||||
|
||||
;lda CURS_X
|
||||
;and #$01
|
||||
beq @skp
|
||||
jmp draw_charinvers
|
||||
@skp:
|
||||
lda soft80_internal_cursorxlsb
|
||||
bne @l1
|
||||
bne draw_char_even
|
||||
|
||||
; output character (odd)
|
||||
.repeat 8,line
|
||||
lda (SCREEN_PTR),y
|
||||
and #$0f
|
||||
@ -258,9 +269,10 @@ soft80_putchar:
|
||||
iny
|
||||
.endif
|
||||
.endrepeat
|
||||
jmp @l2
|
||||
@l1:
|
||||
jmp draw_back
|
||||
|
||||
; output character (even)
|
||||
draw_char_even:
|
||||
.repeat 8,line
|
||||
lda (SCREEN_PTR),y
|
||||
and #$f0
|
||||
@ -271,9 +283,7 @@ soft80_putchar:
|
||||
.endif
|
||||
.endrepeat
|
||||
|
||||
@l2:
|
||||
|
||||
_back:
|
||||
draw_back:
|
||||
lda tmp4
|
||||
sta $01
|
||||
cli
|
||||
@ -281,13 +291,23 @@ _back:
|
||||
ldy CURS_X
|
||||
rts
|
||||
|
||||
; output inverted character
|
||||
_invers:
|
||||
; output inverted character (odd)
|
||||
draw_charinvers_odd:
|
||||
.repeat 8,line
|
||||
lda (SCREEN_PTR),y
|
||||
ora #$0f
|
||||
eor soft80_lo_charset+(line*$80),x
|
||||
sta (SCREEN_PTR),y
|
||||
.if line < 7
|
||||
iny
|
||||
.endif
|
||||
.endrepeat
|
||||
jmp draw_back
|
||||
|
||||
;lda CURS_X
|
||||
;and #$01
|
||||
; output inverted character (generic)
|
||||
draw_charinvers:
|
||||
lda soft80_internal_cursorxlsb
|
||||
bne @l1
|
||||
bne draw_charinvers_odd
|
||||
|
||||
.repeat 8,line
|
||||
lda (SCREEN_PTR),y
|
||||
@ -298,18 +318,7 @@ _invers:
|
||||
iny
|
||||
.endif
|
||||
.endrepeat
|
||||
jmp _back
|
||||
@l1:
|
||||
.repeat 8,line
|
||||
lda (SCREEN_PTR),y
|
||||
ora #$0f
|
||||
eor soft80_lo_charset+(line*$80),x
|
||||
sta (SCREEN_PTR),y
|
||||
.if line < 7
|
||||
iny
|
||||
.endif
|
||||
.endrepeat
|
||||
jmp _back
|
||||
jmp draw_back
|
||||
|
||||
;-------------------------------------------------------------------------------
|
||||
; optional "color voodoo". the problem is that each 8x8 cell can only contain
|
||||
@ -500,7 +509,7 @@ soft80_checkchar:
|
||||
bne @l1a
|
||||
|
||||
; check charset data from bottom up, since a lot of eg lowercase chars
|
||||
; have no data in the top rows, but all of the DO have data in the
|
||||
; have no data in the top rows, but all of them DO have data in the
|
||||
; second to bottom row, this will likely be faster in average.
|
||||
|
||||
ldy #7
|
||||
@ -513,7 +522,6 @@ soft80_checkchar:
|
||||
dey
|
||||
.endif
|
||||
.endrepeat
|
||||
|
||||
;ldy #$00 ; is 0
|
||||
clc
|
||||
rts
|
||||
@ -527,7 +535,7 @@ soft80_checkchar:
|
||||
lda (SCREEN_PTR),y
|
||||
and #$0f
|
||||
cmp #$0f
|
||||
bne @l2bb
|
||||
bne @l2b
|
||||
.if line < 7
|
||||
dey
|
||||
.endif
|
||||
@ -535,9 +543,9 @@ soft80_checkchar:
|
||||
;ldy #$00 ; is 0
|
||||
clc
|
||||
rts
|
||||
@l2bb:
|
||||
ldy #$00
|
||||
sec
|
||||
rts
|
||||
;@l2bb:
|
||||
; ldy #$00
|
||||
; sec
|
||||
; rts
|
||||
|
||||
.endif
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user