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[BotW] Fix fence methods

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Accidentally budged up performance fence which would be active when it wasn't selected...

Also added comments, so the code should be slightly easier to understand.
This commit is contained in:
Crementif 2019-04-07 17:40:27 +02:00
parent 4aca768f40
commit adb112620c
1 changed files with 56 additions and 60 deletions
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116
Mods/BreathOfTheWild_FPS++/Fence Method/patches.txt
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@ -2,84 +2,80 @@
moduleMatches = 0x6267BFD0 moduleMatches = 0x6267BFD0
# Code Cave # Code Cave
#codeCaveSize = 0x50 codeCaveSize = 0x50
# Fence Method Value # Fence Method Value
#_fenceMethod = 0x0000000 _fenceMethod = 0x0000000
#0x0000000 = .int $fenceMethod 0x0000000 = .int $fenceMethod
# Performance Fence method # Performance Fence method
#_conditionalPerformanceFence = 0x0000004 _conditionalPerformanceFence = 0x0000004
#0x0000004 = lis r11, _fenceMethod@ha 0x0000004 = lis r11, _fenceMethod@ha
#0x0000008 = lwz r11, _fenceMethod@l(r11) 0x0000008 = lwz r11, _fenceMethod@l(r11) ; Load the fence method value
#0x000000C = cmpwi r11, 1 0x000000C = cmpwi r11, 1 ; Compare the skip fence method with the fence method that's set, store comparison to the conditional register
#0x0000010 = beq .+0x0C 0x0000010 = bne .+0x0C ; If the conditional register isn't equel to the performance fence method, skip the next two instructions
#0x0000014 = li r0, 1 0x0000014 = li r0, 1 # Performance fence always set the fence skip value to 1
#0x0000018 = blr 0x0000018 = blr ; Return to the instruction that jumped to this part to the code cave
#0x000001C = lwz r0, 0x388(r31) 0x000001C = lwz r0, 0x388(r31) ; Instruction that gets executed if performance fence isn't used, this is the original instruction.
#0x0000020 = blr 0x0000020 = blr ; Return to the instruction that jumped to this part to the code cave
# Accuracy and Skip Fence methods # Accurate and Skip Fence methods
#_conditionalAccuracyAndSkipFence = 0x0000024 _conditionalAccurateAndSkipFence = 0x0000024
#0x0000024 = lis r5, _fenceMethod@ha 0x0000024 = lis r5, _fenceMethod@ha
#0x0000028 = lwz r11, _fenceMethod@l(r5) 0x0000028 = lwz r11, _fenceMethod@l(r5) ; Load the fence method value
#0x000002C = cmpwi r11, 2 0x000002C = cmpwi r11, 2 ; Compare the accurate fence method with the fence method that's set, store comparison to the conditional register
#0x0000030 = li r5, 6 0x0000030 = li r5, 6 ; Original instruction that got replaced with the jump
#0x0000034 = add r6, r12, r0 0x0000034 = add r6, r12, r0 ; Instruction that got replaced with the fence skip check
#0x0000038 = bne .+0x10 0x0000038 = bne .+0x10 ; If the conditional register isn't equel to accurate fence, skip the next three instructions (the ones that are the accurate fence) to the next comparison instruction.
#0x000003C = cmpwi r6, 500 0x000003C = cmpwi r6, 500 # Accurate fence basically checks if it's the first 500 frames of the game, in which case it does a full fence.
#0x0000040 = blt .+0x08 0x0000040 = blt .+0x08
#0x0000044 = subi r6, r6, 1 0x0000044 = subi r6, r6, 1
#0x0000048 = cmpwi r11, 3 0x0000048 = cmpwi r11, 3 ; Compare the skip fence method with the fence method that's set, in preparation of the fence skip since it stores the result in the conditional register.
#0x000004C = blr 0x000004C = blr ; Return to the instruction that jumped to this part to the code cave
#0x31FAAE8 = bla _conditionalPerformanceFence 0x31FAAE8 = bla _conditionalPerformanceFence ; Jumps to the conditional performance part of the code cave that creates the performance fence skip if that preset has been chosen.
#0x31FAAF8 = bla _conditionalAccuracyAndSkipFence 0x31FAAF8 = bla _conditionalAccurateAndSkipFence ; Jumps to the conditional accurate part of the code cave that creates the accurate fence skip if that preset has been chosen.
#0x31FAAFC = beq .+0x08 0x31FAAFC = beq .+0x08 ; This part is the crucial part of the fence skip method. It skips the GX2SetGPUFence call in which case there's no fence skip, if the conditional register that has previously been set by the accurate code cave was true.
0x031FAAE8 = li r0, 1
[BotwFenceV176V192] [BotwFenceV176V192]
moduleMatches = 0xFD091F9F, 0xD472D8A5 moduleMatches = 0xFD091F9F, 0xD472D8A5
# Code Cave # Code Cave
#codeCaveSize = 0x50 codeCaveSize = 0x50
# Fence Method Value # Fence Method Value
#_fenceMethod = 0x0000000 _fenceMethod = 0x0000000
#0x0000000 = .int $fenceMethod 0x0000000 = .int $fenceMethod
# Performance Fence method # Performance Fence method
#_conditionalPerformanceFence = 0x0000004 _conditionalPerformanceFence = 0x0000004
#0x0000004 = lis r11, _fenceMethod@ha 0x0000004 = lis r11, _fenceMethod@ha
#0x0000008 = lwz r11, _fenceMethod@l(r11) 0x0000008 = lwz r11, _fenceMethod@l(r11)
#0x000000C = cmpwi r11, 1 0x000000C = cmpwi r11, 1
#0x0000010 = beq .+0x0C 0x0000010 = bne .+0x0C
#0x0000014 = li r0, 1 0x0000014 = li r0, 1
#0x0000018 = blr 0x0000018 = blr
#0x000001C = lwz r0, 0x388(r31) 0x000001C = lwz r0, 0x388(r31)
#0x0000020 = blr 0x0000020 = blr
# Accuracy and Skip Fence methods # Accurate and Skip Fence methods
#_conditionalAccuracyAndSkipFence = 0x0000024 _conditionalAccurateAndSkipFence = 0x0000024
#0x0000024 = lis r5, _fenceMethod@ha 0x0000024 = lis r5, _fenceMethod@ha
#0x0000028 = lwz r11, _fenceMethod@l(r5) 0x0000028 = lwz r11, _fenceMethod@l(r5)
#0x000002C = cmpwi r11, 2 0x000002C = cmpwi r11, 2
#0x0000030 = li r5, 6 0x0000030 = li r5, 6
#0x0000034 = add r6, r12, r0 0x0000034 = add r6, r12, r0
#0x0000038 = bne .+0x10 0x0000038 = bne .+0x10
#0x000003C = cmpwi r6, 500 0x000003C = cmpwi r6, 500
#0x0000040 = blt .+0x08 0x0000040 = blt .+0x08
#0x0000044 = subi r6, r6, 1 0x0000044 = subi r6, r6, 1
#0x0000048 = cmpwi r11, 3 0x0000048 = cmpwi r11, 3
#0x000004C = blr 0x000004C = blr
#0x31F9FEC = bla _conditionalPerformanceFence 0x31F9FEC = bla _conditionalPerformanceFence
#0x31F9FFC = bla _conditionalAccuracyAndSkipFence 0x31F9FFC = bla _conditionalAccurateAndSkipFence
#0x31FA000 = beq .+0x08 0x31FA000 = beq .+0x08
0x031F9FEC = li r0, 1