size optimization

2015-10-12 17:12:44 +02:00 · 2015-10-12 17:12:44 +02:00 · cf8b21b27e
commit cf8b21b27e
parent bc85d90468
1 changed files with 4 additions and 5 deletions
--- a/libsrc/c64/soft80_cgetc.s
+++ b/libsrc/c64/soft80_cgetc.s
@ -16,13 +16,13 @@ soft80_cgetc:
        lda     KEY_COUNT       ; Get number of characters
        bne     L3              ; Jump if there are already chars waiting

-        ldx     #1
+        sec
        jsr     invertcursor    ; set cursor on or off accordingly

 L1:     lda     KEY_COUNT       ; wait for key
        beq     L1

-        ldx     #0
+        clc
        jsr     invertcursor    ; set cursor on or off accordingly

 L3:     jsr     KBDREAD         ; Read char and return in A
@ -59,7 +59,7 @@ invertcursor:
        bne     @lp1

        pla
-        sta     $01
+        sta     $01             ; enable I/O
        cli
        rts

@ -68,8 +68,7 @@ invertcursor:
        ; in soft80_cputc
 setcolor:
        ;ldy     #0              ; is 0
-        txa
-        bne     @set
+        bcs     @set
        ; restore old value
        lda     tmp1
        sta     (CRAM_PTR),y    ; vram