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Optimizations: ld a, 0 -> xor a, a

This commit is contained in:
Randy Thiemann 2023-11-13 03:35:09 +01:00
parent 932666b5bb
commit 7503937b22
10 changed files with 2081 additions and 2081 deletions
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bin/DMGTRIS.GBC
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2180
bin/DMGTRIS.map
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bin/DMGTRIS.pocket
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bin/DMGTRIS.sym
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2
src/field.asm
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@ -4667,7 +4667,7 @@ BigClearLines:
ld [hl+], a
ld [hl+], a
ld [hl+], a
ld a, 0
xor a, a
ld [hl+], a
ld [hl+], a
ld [hl+], a

26
src/gbc.asm
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@ -109,7 +109,7 @@ ToATTR::
ldh [rHDMA4], a
ld a, 41
ldh [rHDMA5], a
ld a, 0
xor a, a
ldh [rVBK], a
ret
@ -268,7 +268,7 @@ GBCTitleProcess::
inc a
cp a, $07
jr c, .nores
ld a, $00
xor a, a
.nores
ld [wTitlePal], a
.noinc
@ -303,7 +303,7 @@ GBCTitleProcess::
inc a
cp a, $07
jr c, .nores3
ld a, $00
xor a, a
.nores3
ld [wTitlePal], a
.noinc3
@ -338,7 +338,7 @@ GBCTitleProcess::
inc a
cp a, $07
jr c, .nores1
ld a, $00
xor a, a
.nores1
ld [wTitlePal], a
.noinc1
@ -373,7 +373,7 @@ GBCTitleProcess::
inc a
cp a, $07
jr c, .nores4
ld a, $00
xor a, a
.nores4
ld [wTitlePal], a
.noinc4
@ -395,7 +395,7 @@ GBCTitleProcess::
inc a
cp a, $07
jr c, .nores2
ld a, $00
xor a, a
.nores2
ld [wTitlePal], a
.noinc2
@ -429,11 +429,11 @@ GBCGameplayProcess::
jr z, .goverride
ld a, [wSpeedCurveState]
cp a, SCURVE_DEAT
ld a, $00 ;Red
xor a, a ;Red
jr z, .goverride
ld a, [wSpeedCurveState]
cp a, SCURVE_SHIR
ld a, $00 ;Red
xor a, a ;Red
jr z, .goverride ;Always red
ld a, [wSpeedCurveState]
cp a, SCURVE_CHIL
@ -447,7 +447,7 @@ GBCGameplayProcess::
ldh a, [hCurrentIntegerGravity]
cp a, 20
jr c, :+
ld a, $00
xor a, a
ld d, a
jr .colorfield
: cp a, 3
@ -645,11 +645,11 @@ GBCBigGameplayProcess::
jr z, .goverride
ld a, [wSpeedCurveState]
cp a, SCURVE_DEAT
ld a, $00 ;Red
xor a, a ;Red
jr z, .goverride
ld a, [wSpeedCurveState]
cp a, SCURVE_SHIR
ld a, $00 ;Red
xor a, a ;Red
jr z, .goverride ;Always red
ld a, [wSpeedCurveState]
cp a, SCURVE_CHIL
@ -663,7 +663,7 @@ GBCBigGameplayProcess::
ldh a, [hCurrentIntegerGravity]
cp a, 20
jr c, :+
ld a, $00
xor a, a
ld d, a
jr .colorfield
: cp a, 3
@ -860,7 +860,7 @@ ToVRAM::
ldh [rHDMA5], a
; Bank 0
ld a, 0
xor a, a
ldh [rVBK], a
ld a, HIGH(wShadowTilemap)
ldh [rHDMA1], a

2
src/level.asm
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@ -497,7 +497,7 @@ AdjustSpeedCurveForced:
jr z, .continue
ld a, 20
ldh [hCurrentIntegerGravity], a
ld a, $00
xor a, a
ldh [hCurrentFractionalGravity], a
.continue

2
src/rng.asm
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@ -331,7 +331,7 @@ GetNextTGM3Piece:
jr z, :+ ; Same.
jr c, :+ ; Nope.
ld e, a
ld a, 0
xor a, a
ld [wTGM3WorstDroughtIdx], a
; Is idx 1 worse?

2
src/sprites.asm
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@ -163,7 +163,7 @@ ApplyTells::
ld [wSPRModeRot+3], a
ld a, 4
ld [wSPRModeDrop+3], a
ld a, 0
xor a, a
ld [wSPRModeHiG+3], a
ret

2
src/sram.asm
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@ -230,7 +230,7 @@ InitializeSRAM:
ld [rCheck+2], a
ld a, "T"
ld [rCheck+3], a
ld a, 0
xor a, a
ld [rCheck+4], a
ld a, 4
ld [rCheck+5], a