Tiny optimizations for multiplication.

2020-08-29 16:21:45 +02:00
parent 5158ee2092
commit f54e01781b
2 changed files with 5 additions and 6 deletions
--- a/libsrc/runtime/lmul.s
+++ b/libsrc/runtime/lmul.s
@@ -63,7 +63,7 @@ L0:     lsr     tmp4
        bcc     L1
        clc
        adc     ptr3
-        pha
+        tax
        lda     ptr3+1
        adc     tmp2
        sta     tmp2
@@ -73,7 +73,7 @@ L0:     lsr     tmp4
        lda     ptr4+1
        adc     tmp4
        sta     tmp4
-        pla
+        txa
 L1:     dey
        bpl     L0
        lda     ptr1            ; Load the low result word