Fixed bugs; and, improved the efficiency of some pce library functions.

[cc65] / libsrc / pce / clrscr.s

diff --git a/libsrc/pce/clrscr.s b/libsrc/pce/clrscr.s
index 907a78899b73fe46a91fe00a5034e52f0ea6567f..47627788683e2ec0074526474b837b2d245df293 100644 (file)
--- a/libsrc/pce/clrscr.s
+++ b/libsrc/pce/clrscr.s
@@ -12,20 +12,15 @@
         .include        "extzp.inc"
 
 _clrscr:
-        st0     #VDC_MAWR
-        st1     #<$0000
-        st2     #>$0000
-
+        VREG    VDC_MAWR, $0000
         st0     #VDC_VWR
+
         ldy     #$40
 rowloop:
         ldx     #$80
 colloop:
-        lda     #' '            ; low byte of char. index
-        sta     VDC_DATA_LO
-        lda     #$02            ; background color, high nybble of char. index
-        sta     VDC_DATA_HI
-
+        st1     #' '            ; low byte of char. index
+        st2     #$02            ; background color, high nybble of char. index
         dex
         bne     colloop
         dey