Macintosh-Tools/tbxi-patches
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Fix show-stopper RockHopper bugs

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This commit is contained in:
Elliot Nunn 2019-10-10 09:52:42 +08:00
parent ed6c44d99a
commit 9ed5ba495c
1 changed files with 13 additions and 7 deletions
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20
macmini.py
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@ -358,6 +358,7 @@ def patch_rockhopper_ndrv(src, dest=None):
code.extend(assemble(f"""
mflr r0 # Standard stack setup
stw r0, 8(r1)
stw r2, 0x14(r1) # Essential, caller uses this
stwu r1, -0x40(r1)
stw r4, 0x38(r1) # Make the call,
@ -373,13 +374,13 @@ def patch_rockhopper_ndrv(src, dest=None):
lwz r5, 0x3c(r1) # If wrong returned value, punt
lwz r8, 0(r5)
lis r7, 0x1002
ori r7, r7, 0x5962
lis r7, 0x5962
ori r7, r7, 0x1002
cmpw cr0, r7, r8
bne cr0, _return
lis r8, 0x1002 # Save the new returned value
ori r8, r8, 0x5961
lis r8, 0x5961 # Save the new returned value
ori r8, r8, 0x1002
stw r8, 0(r5)
_return: # Stack teardown
@ -437,9 +438,14 @@ for (parent, folders, files) in os.walk(src):
patch_rockhopper_ndrv(ndrv2, ndrv2)
# compatible w/ ATY,RockHopper2 and device_type=display, override existing
with open(full, 'a') as f:
f.write('prop flags=0x0000c a=ATY,RockHopper2 b=display\n')
f.write('\tndrv flags=0x00004 name=driver,AAPL,MacOS,PowerPC src=%s\n\n' % path.basename(ndrv2))
# must come before the cofb parcel
with open(full, 'r+') as f:
lines = f.readlines()
idx = next(i for (i, ln) in enumerate(lines) if ' b=display' in ln)
lines[idx:idx] = ['prop flags=0x0000c a=ATY,RockHopper2 b=display\n',
'\tndrv flags=0x00004 name=driver,AAPL,MacOS,PowerPC src=%s\n\n' % path.basename(ndrv2)]
f.seek(0)
f.writelines(lines)
if path.exists(path.join(parent, 'MotherBoardHAL.pef')):
print('ROM has MotherBoardHAL (< ROM 6.7), therefore unlikely to work')