From: cuz Date: Fri, 21 Sep 2001 12:55:27 +0000 (+0000) Subject: Color RAM initialization was missing X-Git-Tag: V2.12.0~2626 X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=edcc015a4832257e59326d048bdfc6bfe6d2855c;p=cc65 Color RAM initialization was missing git-svn-id: svn://svn.cc65.org/cc65/trunk@959 b7a2c559-68d2-44c3-8de9-860c34a00d81 --- diff --git a/libsrc/cbm510/clrscr.s b/libsrc/cbm510/clrscr.s index a2bb4e2db..206833cc1 100644 --- a/libsrc/cbm510/clrscr.s +++ b/libsrc/cbm510/clrscr.s @@ -16,28 +16,47 @@ lda #0 sta CURS_X sta CURS_Y - jsr plot ; Set cursor to top left corner + jsr plot ; Set cursor to top left corner - lda #$20 ; Screencode for blank - ldx #$00 - ldy #$00 + ldx #$00 ; Count jsr clearpage jsr clearpage jsr clearpage - ldx #<(40*25) - jsr clearpage ; Clear remainder of last page - jmp plot ; Set screen pointer again + ldx #<(40*25) ; Count + jsr clearpage ; Clear remainder of last page + jmp plot ; Set screen pointer again .endproc .proc clearpage + + txa + pha ; Save count + lda #$20 ; Screencode for blank + ldy #$00 @L1: sta (SCREEN_PTR),y iny dex bne @L1 inc SCREEN_PTR+1 + + pla + tax ; Reload count + lda IndReg + pha + lda #$0F + sta IndReg ; Switch to the system bank + lda CHARCOLOR ; Load color + ldy #$00 +@L2: sta (CRAM_PTR),y + iny + dex + bne @L2 + inc CRAM_PTR+1 + pla + sta IndReg ; Restore the old indirect bank rts .endproc