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a few small optimizations

This commit is contained in:
mgcaret 2020-05-02 01:46:16 -07:00
parent f13459e452
commit 0c0674cec3
2 changed files with 8 additions and 22 deletions
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4
asm/forth-dictionary.s
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@ -1709,9 +1709,7 @@ hword RPICK,"RPICK"
ldy #$02
lda [WR],y
pha
dey
dey
lda [WR],y
lda [WR]
tay
pla
NEXT

26
asm/interpreter.s
View File

@ -495,9 +495,7 @@ docmp: cmp STK_TOP
pushv2: ldy #$02
lda [WR],y ; high word
pha ; save for now
dey
dey
lda [WR],y ; low word
lda [WR] ; low word
tay
pla
PUSHNEXT
@ -516,13 +514,11 @@ pushv2: ldy #$02
and #$FF
adc #$00
sta WR+2
ldy #$00
lda [WR],y ; low word
lda [WR] ; low word
clc
adc STACKBASE+0,x
sta STACKBASE+0,x
iny
iny
ldy #$02
lda [WR],y ; low word
adc STACKBASE+0,x
sta STACKBASE+0,x
@ -590,9 +586,7 @@ pushv2: ldy #$02
sep #SHORT_A
pha ; bank byte on stack
rep #SHORT_A
dey
dey
lda [WR],y ; low word
lda [WR] ; low word
pha ; address on stack
rtl ; really a jump
.endproc
@ -614,9 +608,7 @@ pushv2: ldy #$02
sep #SHORT_A
pha ; bank byte on stack
rep #SHORT_A
dey
dey
lda [WR],y ; low word
lda [WR] ; low word
pha ; RTS address on stack
jsr _popay
rts ; really a jump
@ -744,9 +736,7 @@ done: rts
ldy #$02
lda [WR],y
pha
dey
dey
lda [WR],y
lda [WR]
tay
pla
rts
@ -757,10 +747,8 @@ done: rts
phy
ldy #$02
sta [WR],y
dey
dey
pla
sta [WR],y
sta [WR]
rts
.endproc