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Fixed RSP core VRSQL implementation. [Harmony]

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This commit is contained in:
Ryan Holtz 2011-01-02 23:27:52 +00:00
parent bc563f265b
commit d899ca454f
1 changed files with 32 additions and 4 deletions
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34
src/emu/cpu/rsp/rspdrc.c
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@ -3272,13 +3272,34 @@ INLINE void cfunc_rsp_vrsql(void *param)
int sel = EL & 7;
INT32 shifter = 0;
INT32 rec = (INT16)(VREG_S(VS2REG, sel));
INT32 datainput = (rec < 0) ? (-rec) : rec;
INT32 rec = ((UINT16)(VREG_S(VS2REG, sel)) | ((UINT32)(rsp->reciprocal_high) & 0xffff0000));
INT32 datainput = rec;
if (rec < 0)
{
if (rsp->dp_allowed)
{
if (rec < -32768)//VDIV.C,208
{
datainput = ~datainput;
}
else
{
datainput = -datainput;
}
}
else
{
datainput = -datainput;
}
}
if (datainput)
{
for (i = 0; i < 32; i++)
{
if (datainput & (1 << ((~i) & 0x1f)))//ò.æ.÷òî 31 - i
if (datainput & (1 << ((~i) & 0x1f)))
{
shifter = i;
break;
@ -3286,9 +3307,16 @@ INLINE void cfunc_rsp_vrsql(void *param)
}
}
else
{
if (rsp->dp_allowed)
{
shifter = 0;
}
else
{
shifter = 0x10;
}
}
INT32 address = ((datainput << shifter) & 0x7fc00000) >> 22;
address = ((address | 0x200) & 0x3fe) | (shifter & 1);