Small lz4 optimizations

2017-06-09 16:57:47 +03:00 · 2017-06-09 16:57:47 +03:00 · 4235e569d2
parent 135041ac3c
commit 4235e569d2
1 changed files with 3 additions and 3 deletions
--- a/libsrc/common/lz4.s
+++ b/libsrc/common/lz4.s
@ -137,7 +137,7 @@ L001A:  lda     offset
        ldx     in+1
        sta     ptr1
        stx     ptr1+1
-        ldy     #$00
+;        ldy     #$00 - not needed as pushax zeroes Y
        jsr     memcpy_upwards
 ;
 ; written += offset;
@ -195,11 +195,11 @@ L0047:  ldy     #$00
 L002F:  lda     out
        clc
        adc     written
-        pha
+        tay
        lda     out+1
        adc     written+1
        tax
-        pla
+        tya
        sec
        sbc     offset
        sta     ptr1