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removed duplicate copy of charset and shift it at init time, saves 1k

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mrdudz
2015-09-27 19:34:43 +02:00
parent c221fe22f6
commit 257183fa55
4 changed files with 31 additions and 169 deletions
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43
libsrc/c64/soft80_conio.s
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@@ -8,6 +8,8 @@
.import soft80_kclrscr
.import soft80_textcolor, soft80_bgcolor
.importzp ptr1, ptr2, ptr3
.include "c64.inc"
.include "soft80.inc"
@@ -28,22 +30,36 @@ soft80_init:
lda #$34
sta $01
lda #>soft80_lo_charset0
sta @hi1+2
lda #>$d000
sta @hi2+2
lda #>soft80_charset
sta ptr1+1
lda #<soft80_charset
sta ptr1
lda #>soft80_lo_charset
sta ptr2+1
lda #<soft80_lo_charset
sta ptr2
lda #>soft80_hi_charset
sta ptr3+1
lda #<soft80_hi_charset
sta ptr3
ldy #8
ldx #4
@l2:
ldx #0
ldy #0
@l1:
@hi1: lda soft80_lo_charset0,x
@hi2: sta $d000,x
inx
lda (ptr1),y
sta (ptr2),y
asl a
asl a
asl a
asl a
sta (ptr3),y
iny
bne @l1
inc @hi1+2
inc @hi2+2
dey
inc ptr1+1
inc ptr2+1
inc ptr3+1
dex
bne @l2
pla
@@ -68,7 +84,6 @@ soft80_shutdown:
sta VIC_VIDEO_ADR
rts
; FIXME: generate the charset at init time, and put it into RAM under I/O
soft80_charset:
.include "soft80_charset.s"