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DSPLLE: fix some comments, returned andc and orc (according to tests)

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but andc'ls still behaves strange and we couldn't merge them together.



git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@3915 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
nakeee
2009-07-31 15:21:35 +00:00
parent 903346e06f
commit 45a71bf3ef
5 changed files with 108 additions and 97 deletions
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23
Source/Core/DSPCore/Src/DspIntArithmetic.cpp
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@ -176,7 +176,7 @@ void orr(const UDSPInstruction& opc)
Update_SR_Register64(acc);
}
/*
// FIXME: How does it fit what we know about andc'ls
// ANDC $acD.m, $ac(1-D).m
// 0011 110d xxxx xxxx
// Logic AND middle part of accumulator $acD.m with middle part of
@ -184,31 +184,24 @@ void orr(const UDSPInstruction& opc)
void andc(const UDSPInstruction& opc)
{
u8 D = (opc.hex >> 8) & 0x1;
g_dsp.r[DSP_REG_ACM0+D] &= dsp_get_acc_m(1-D);
u16 ac1 = dsp_get_acc_m(D);
u16 ac2 = dsp_get_acc_m(1 - D);
dsp_set_long_acc(D, ac1 & ac2);
Update_SR_Register64(dsp_get_long_acc(D));
Update_SR_Register16(dsp_get_acc_m(D));
}
// FIXME: How does it fit what we know about orc'ls
// ORC $acD.m, $ac(1-D).m
// 0011 111d xxxx xxxx
// Logic OR middle part of accumulator $acD.m with middle part of
// accumulator $ax(1-D).m.
// accumulator $ac(1-D).m.
void orc(const UDSPInstruction& opc)
{
u8 D = (opc.hex >> 8) & 0x1;
g_dsp.r[DSP_REG_ACM0+D] |= dsp_get_acc_m(1-D);
u16 ac1 = dsp_get_acc_m(D);
u16 ac2 = dsp_get_acc_m(1 - D);
dsp_set_long_acc(D, ac1 | ac2);
Update_SR_Register64(dsp_get_long_acc(D));
Update_SR_Register16(dsp_get_acc_m(D));
}
*/
void orf(const UDSPInstruction& opc)
{
ERROR_LOG(DSPLLE, "orf not implemented");