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core: set default cpu stacks, necessary for bitbox demo sound

This commit is contained in:
zeromus 2010-01-14 00:18:32 +00:00
parent c80f085444
commit e03efa73ef
1 changed files with 16 additions and 0 deletions
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16
desmume/src/NDSSystem.cpp
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@ -2062,8 +2062,24 @@ void NDS_Reset()
armcpu_init(&NDS_ARM7, header->ARM7exe);
armcpu_init(&NDS_ARM9, header->ARM9exe);
//bitbox 4k demo is so stripped down it relies on default stack values
//otherwise the arm7 will crash before making a sound
//(these according to gbatek softreset bios docs)
NDS_ARM7.R13_svc = 0x0380FFDC;
NDS_ARM7.R13_irq = 0x0380FFB0;
NDS_ARM7.R13_usr = 0x0380FF00;
NDS_ARM7.R[13] = NDS_ARM7.R13_usr;
//and let's set these for the arm9 while we're at it, though we have no proof
NDS_ARM9.R13_svc = 0x00803FC0;
NDS_ARM9.R13_irq = 0x00803FA0;
NDS_ARM9.R13_usr = 0x00803EC0;
NDS_ARM9.R[13] = NDS_ARM9.R13_usr;
//n.b.: im not sure about all these, I dont know enough about arm9 svc/irq/etc modes
//and how theyre named in desmume to match them up correctly. i just guessed.
}
nds.wifiCycle = 0;
memset(nds.timerCycle, 0, sizeof(u64) * 2 * 4);
nds.VCount = 0;