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6a0bf28b6d
powermac-rom/NanoKernel/MROptabCode.s
Elliot Nunn 6a0bf28b6d deleted
2018-07-24 12:59:11 +08:00

494 lines
11 KiB
ArmAsm
Executable File
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MRCrash ; C00
bl SystemCrash
MRSecFail ; C04
b MRIOInstFail
########################################################################
MRPrimSTFSx ; C08
rlwinm r17, r17, 0,16,10
MRPrimSTFSUx ; C0C
crclr cr7_so
b MRDoTableSTFD
MRPrimSTFDx ; C14
rlwinm r17, r17, 0,16,10
MRPrimSTFDUx ; C18
crset cr7_so
MRDoTableSTFD ; C1C
; This table is of the form:
; stfd <reg>, KDP.FloatEmScratch(r1)
; b
clrrwi r19, r25, 10
rlwimi r19, r17, 14,24,28
addi r19, r19, STFDTable-MRTop
mtlr r19
rlwimi r14, r11, 0,18,18
mtmsr r14
blr
MRDoneTableSTFD ; c38
ori r11, r11, 0x2000
lwz r20, KDP.FloatEmScratch(r1)
lwz r21, KDP.FloatEmScratch+4(r1)
bso cr7, MRPrimUpdLoad
extrwi r23, r20, 11,1
cmpwi r23, 0x380
insrwi r20, r20, 27,2
inslwi r20, r21, 3,29
mr r21, r20
bgt MRPrimUpdLoad
cmpwi r23, 0x36A
clrrwi r21, r20, 31
blt MRPrimUpdLoad
oris r20, r20, 0x80
neg r23, r23
clrlwi r20, r20, 8
srw r20, r20, r23
rlwimi r21, r20, 31,9,31
b MRPrimUpdLoad
########################################################################
MRPrimSTWBRX ; C84
rlwinm r28, r17, 13,25,29
lwbrx r21, r1, r28
b MRPrimPlainLoad
MRPrimSTHBRX ; C90
rlwinm r28, r17, 13,25,29
addi r21, r1, 2
lhbrx r21, r21, r28
b MRPrimPlainLoad
########################################################################
MRPrimUpdStore ; CA0
rlwinm r28, r17, 13,25,29
lwzx r21, r1, r28
b MRPrimUpdLoad
MRPrimPlainStore ; CAC
rlwinm r28, r17, 13,25,29
lwzx r21, r1, r28
MRPrimPlainLoad ; CB4
rlwinm r17, r17, 0,16,10
MRPrimUpdLoad ; CB8
extrwi. r22, r17, 4,27
add r19, r18, r22
########################################################################
MRDoMemAccess ; CC0
clrrwi r25, r25, 10
insrwi r25, r19, 3,28
insrwi r25, r17, 4,24
lha r22, MRMemtab-MRTop(r25)
addi r23, r1, KDP.VecTblMemRetry
add r22, r22, r25
mtlr r22
mtsprg 3, r23
mtmsr r15
insrwi r25, r26, 8,22
bnelr
b MRDoneMemAccess
MRStore22Fast ; Fast return paths from MemAccess code
srwi r23, r21, 16
sth r23, -4(r19)
addi r17, r17, -4
sth r21, -2(r19)
b MRDoneMemAccess
MRLoad22Fast
lhz r23, -4(r19)
addi r17, r17, -4
insrwi r21, r23, 16,0
MRLoad2Fast
lhz r23, -2(r19)
insrwi r21, r23, 16,16
MRDoneMemAccess ; D18
sync
rlwinm. r28, r17, 18,25,29
mtlr r25
cror cr0_eq, cr0_eq, cr3_eq
mtmsr r14
mtsprg 3, r24
beqlr
crset cr3_so
stwx r18, r1, r28
blr
########################################################################
MRSecLoadExt ; D40
extsh r21, r21
MRSecLoad ; D44
rlwinm r28, r17, 13,25,29
crset cr3_so
stwx r21, r1, r28
########################################################################
MRExit ; D50
andi. r23, r16, 0x20
addi r10, r10, 4
mtsrr0 r10
mtsrr1 r11
bne @trace
mtlr r12
bns cr3, @otherway
mtcr r13
lmw r2, KDP.r2(r1)
lwz r0, KDP.r0(r1)
lwz r1, KDP.r1(r1)
rfi
@otherway
mtcr r13
lmw r10, KDP.r10(r1)
lwz r1, KDP.r1(r1)
rfi
@trace
mfsprg r24, 3
mtsprg 2, r12
rlwinm r16, r16, 0,27,25
lwz r12, VecTbl.Trace(r24)
stw r16, KDP.Flags(r1)
mtcr r13
mtlr r12
lmw r2, KDP.r2(r1)
lwz r0, KDP.r0(r1)
lwz r1, KDP.r1(r1)
mtsprg 1, r1
blrl
########################################################################
MRSecLHBRX ; DC0
slwi r21, r21, 16
MRSecLWBRX ; DC4
rlwinm r28, r17, 13,25,29
crset cr3_so
stwbrx r21, r1, r28
b MRExit
########################################################################
MRSecLFSu ; DD4
clrrwi r20, r21, 31
xor. r21, r20, r21
beq MRSecLFDu
rlwinm. r23, r21, 16,17,24
addi r23, r23, 0x80
rlwimi r20, r21, 29,5,31
extsh r23, r23
rlwimi r20, r21, 0,1,1
slwi r21, r21, 29
addi r23, r23, -0x4080
rlwimi r20, r23, 0,2,4
bne MRSecLFDu
srwi r21, r21, 20
insrwi r21, r20, 20,0
cntlzw r23, r21
slw r21, r21, r23
neg r23, r23
rlwimi r20, r21, 21,12,31
addi r23, r23, 0x380
slwi r21, r21, 21
insrwi r20, r23, 11,1
MRSecLFDu ; E28
; This table is of the form:
; lfd <reg>, KDP.FloatEmScratch(r1)
; b MRExit
rlwimi r23, r17, 14,24,28
addi r23, r23, LFDTable-MRTop
mtlr r23
stw r20, KDP.FloatEmScratch(r1)
stw r21, KDP.FloatEmScratch+4(r1)
rlwimi r14, r11, 0,18,18
mtmsr r14
ori r11, r11, 0x2000
blr
########################################################################
MRSecLMW ; E50
rlwinm. r28, r17, 13,25,29
rlwinm r23, r17, 18,25,29
cmpw cr7, r28, r23
addis r17, r17, 0x20
beq loc_E68
beq cr7, loc_E6C
loc_E68 ; E68
stwx r21, r1, r28
loc_E6C ; E6C
cmpwi r28, 0x7C
li r22, 9
insrwi r17, r22, 6,26
addi r19, r19, 4
bne MRDoMemAccess
b MRExit
MRSecSTMW ; E84
addis r17, r17, 0x20
rlwinm. r28, r17, 13,25,29
beq MRExit
lwzx r21, r1, r28
li r22, 8
insrwi r17, r22, 6,26
addi r19, r19, 4
b MRDoMemAccess
########################################################################
MRPrimDCBZ ; Zero four 8b chunks of the cache blk
clrrwi r19, r18, 5 ; r19 = address of chunk to zero
b MRComDCBZ ; (for use by this code only)
MRSecDCBZ ; EAC
andi. r22, r19, 0x18
clrrwi r19, r19, 3 ; MemAccess code decrements this reg
beq MRExit ; Zeroed all foun chunks -> done!
MRComDCBZ ; EB8
li r22, 0x10 ; Set 8 bytes (? set bit 27)
insrwi. r17, r22, 6,26
addi r19, r19, 8 ; Align ptr to right hand size of chunk
li r20, 0 ; Contents = zeros
li r21, 0
b MRDoMemAccess ; Go, then come back to MRSecDCBZ
########################################################################
MRSecLWARX ; ED0
rlwinm r28, r17, 13,25,29
crset cr3_so
stwx r21, r1, r28
stwcx. r21, r1, r28
b MRExit
MRSecSTWCX ; EE4
stwcx. r0, 0, r1
mfcr r23
rlwinm r23, r23, 0,3,1
rlwimi r13, r23, 0,0,3
b MRExit
########################################################################
MRSecCacheWang ; EF8
rlwinm r16, r16, 0,28,25
addi r10, r10, -4
stw r16, KDP.Flags(r1)
b MRExit
########################################################################
MRIOInstFail ; F08
li r8, ecDataInvalidAddress
b ExceptionMemRetried
########################################################################
MRPrimSTSWI ; F10
addi r22, r27, -0x800
extrwi r22, r22, 5,16
b loc_F2C
MRPrimSTSWX ; F1C
mfxer r22
andi. r22, r22, 0x7F
addi r22, r22, -1
beq MRExit
loc_F2C ; F2C
rlwimi r17, r22, 4,21,25
not r22, r22
insrwi r17, r22, 2,4
mr r19, r18
b loc_1008
MRSecStrStore ; F40
andi. r22, r17, 0x7C0
addis r28, r17, 0x20
rlwimi r17, r28, 0,6,10
addi r17, r17, -0x40
bne loc_1008
b MRExit
########################################################################
MRPrimLSWI ; F58
addi r22, r27, -0x800
extrwi r22, r22, 5,16
addis r28, r27, 0x3E0
rlwimi r17, r28, 22,16,20
b loc_F80
MRPrimLSWX ; F6C
mfxer r22
andi. r22, r22, 0x7F
rlwimi r17, r27, 0,16,20
addi r22, r22, -1
beq MRExit
loc_F80 ; F80
andis. r23, r17, 0x1F
rlwimi r17, r22, 4,21,25
not r22, r22
insrwi r17, r22, 2,4
mr r19, r18
bne loc_1070
rlwimi r17, r17, 5,11,15
b loc_1070
MRSecLSWix ; FA0
andi. r22, r17, 0x7C0
rlwinm r28, r17, 13,25,29
bne loc_1044
rlwinm r22, r17, 9,27,28
slw r21, r21, r22
b loc_1044
########################################################################
MRPrimUnknown ; FB8
mfxer r22
andi. r22, r22, 0x7F
rlwimi r17, r27, 0,16,20
insrwi r17, r27, 1,3
addi r22, r22, -1
beq MRExit
andis. r23, r17, 0x1F
rlwimi r17, r22, 4,21,25
not r22, r22
insrwi r17, r22, 2,4
mr r19, r18
bne loc_10C8
rlwimi r17, r17, 5,11,15
b loc_10C8
MRSecUnknown ; FF0
rlwinm. r22, r17, 28,25,29
rlwinm r28, r17, 13,25,29
bne loc_109C
rlwinm r23, r17, 9,27,28
loc_1000 ; 1000
slw r21, r21, r23
b loc_109C
loc_1008 ; 1008
andi. r23, r17, 0x7C0
rlwinm r28, r17, 13,25,29
lwzx r21, r1, r28
li r22, 8
insrwi r17, r22, 6,26
addi r19, r19, 4
bne MRDoMemAccess
rlwinm r22, r17, 9,27,28
srw r21, r21, r22
extrwi r22, r17, 2,4
neg r22, r22
add r19, r19, r22
addi r22, r22, 4
insrwi. r17, r22, 5,26
b MRDoMemAccess
loc_1044 ; 1044
rlwinm r23, r17, 18,25,29
cmpw cr7, r28, r23
rlwinm r23, r17, 23,25,29
cmpw cr6, r28, r23
beq cr7, loc_1060
beq cr6, loc_1060
stwx r21, r1, r28
loc_1060 ; 1060
addis r28, r17, 0x20
rlwimi r17, r28, 0,6,10
addi r17, r17, -0x40
beq MRExit
loc_1070 ; 1070
andi. r23, r17, 0x7C0
li r22, 9
insrwi r17, r22, 6,26
addi r19, r19, 4
bne MRDoMemAccess
extrwi r22, r17, 2,4
neg r22, r22
add r19, r19, r22
addi r22, r22, 4
insrwi. r17, r22, 5,26
b MRDoMemAccess
loc_109C ; 109C
rlwinm r23, r17, 18,25,29
cmpw cr7, r28, r23
rlwinm r23, r17, 23,25,29
cmpw cr6, r28, r23
beq cr7, loc_10B8
beq cr6, loc_10B8
stwx r21, r1, r28
loc_10B8 ; 10B8
addis r28, r17, 0x20
rlwimi r17, r28, 0,6,10
addi r17, r17, -0x40
beq MRExit
loc_10C8 ; 10C8
not r22, r22
rlwimi r22, r17, 6,30,31
li r28, 1
mfxer r23
extrwi r23, r23, 8,16
srwi r20, r21, 24
cmpw cr7, r20, r23
add. r22, r22, r28
beq cr7, loc_112C
beq loc_112C
extrwi r20, r21, 8,8
cmpw cr7, r20, r23
add. r22, r22, r28
beq cr7, loc_112C
beq loc_112C
extrwi r20, r21, 8,16
cmpw cr7, r20, r23
add. r22, r22, r28
beq cr7, loc_112C
beq loc_112C
clrlwi r20, r21, 24
cmpw cr7, r20, r23
add. r22, r22, r28
beq cr7, loc_112C
bne loc_1070
loc_112C ; 112C
rlwinm. r28, r17, 0,3,3
mfxer r23
add r22, r22, r23
insrwi r23, r22, 7,25
mtxer r23
beq MRExit
mfcr r23
clrlwi r23, r23, 30
insrwi r13, r23, 4,0
b MRExit
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