Minor math optimizations

2019-02-28 17:30:34 +01:00
parent 0ea78be056
commit cc6559c3f6
4 changed files with 16 additions and 10 deletions
--- a/libsrc/runtime/udiv32by16r16.s
+++ b/libsrc/runtime/udiv32by16r16.s
@@ -34,19 +34,19 @@ L0:     asl     ptr1
        rol     a
        rol     sreg+1

-        pha
+        tax
        cmp     ptr3
        lda     sreg+1
        sbc     ptr3+1
        bcc     L1

        sta     sreg+1
-        pla
+        txa
        sbc     ptr3
-        pha
+        tax
        inc     ptr1

-L1:     pla
+L1:     txa
        dey
        bne     L0
        sta     sreg