Macintosh-SW/powermac-rom
1
0
Fork 0
mirror of https://github.com/elliotnunn/powermac-rom.git synced 2024-06-01 01:41:30 +00:00
Code Issues Projects Releases Wiki Activity

clear up kdp accesses

Browse Source
This commit is contained in:
Elliot Nunn 2018-07-15 18:48:20 +08:00
parent dbb5a001b8
commit 2bbb5c24c8
1 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
NanoKernel/NKLegacyVM.s
View File

@ -133,7 +133,7 @@ VMInit ; OUTSIDE REFERER
stw r5, KDP.PARPageListPtr(r1) ; where did NK find this???
lwz r6, 0x05e8(r1)
lwz r6, KDP.CurrentMemLayout.SegMapPtr(r1)
li r5, 0x00
li r4, 0x00
@ -278,7 +278,7 @@ VMInit_0x218
cmpwi r5, 0x00
addi r15, r15, 0x04
bgt VMInit_0x218
lwz r6, 0x05e8(r1)
lwz r6, KDP.CurrentMemLayout.SegMapPtr(r1)
li r9, 0
ori r7, r9, 0xffff
li r8, 0xa00
@ -293,7 +293,7 @@ VMInit_0x250
addi r9, r9, 1
cmpwi r9, 3
ble VMInit_0x250
lwz r6, 0x05e8(r1)
lwz r6, KDP.CurrentMemLayout.SegMapPtr(r1)
lwz r9, KDP.VMLogicalPages(r1)
lwz r15, KDP.PARPageListPtr(r1)
@ -838,7 +838,7 @@ VMAllocateMemory_0xc0
rlwinm. r9, r7, 0, 0, 11
blt cr7, VMReturnMinus1
bne VMReturnMinus1
lwz r14, 0x05e8(r1)
lwz r14, KDP.CurrentMemLayout.SegMapPtr(r1)
rlwinm r9, r7, 19, 25, 28
lwzx r14, r14, r9
clrlwi r9, r7, 0x10
@ -963,7 +963,7 @@ GetPARPageInfo_0x40 ;some kind of little-used code path for when VMMaxVirtualPag
rlwinm. r9, r4, 0, 0, 11
blt cr4, VMReturnMinus1;return failure if r4<VMMaxVirtualPages
bne VMReturnMinus1 ;return failure if bits 0-11 of r4 are non-zero
lwz r15, 0x05e8(r1);this appears to be an array of 8-byte structures.
lwz r15, KDP.CurrentMemLayout.SegMapPtr(r1);this appears to be an array of 8-byte structures.
rlwinm r9, r4, 19, 25, 28;copy bits 12-15 or r4 to bits 25-28 of r9
lwzx r15, r15, r9 ;do an index for some reason
clrlwi r9, r4, 0x10 ;copy bits 16-31 to r9