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drcbex64: Change SSE control to not use Denormals-Are-Zero. Allows MIPs DRC to function correctly and fixes mismatch between MIPs DRC and non-DRC modes. Fixes gauntdl MT06724. (nw)

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This commit is contained in:
Ted Green 2017-10-21 12:40:47 -06:00
parent 4ba1b37392
commit c3192b25ab
1 changed files with 4 additions and 4 deletions
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8
src/devices/cpu/drcbex64.cpp
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@ -635,10 +635,10 @@ drcbe_x64::drcbe_x64(drcuml_state &drcuml, device_t &device, drc_cache &cache, u
// build up necessary arrays
static const uint32_t sse_control[4] =
{
0xffc0, // ROUND_TRUNC
0x9fc0, // ROUND_ROUND
0xdfc0, // ROUND_CEIL
0xbfc0 // ROUND_FLOOR
0xff80, // ROUND_TRUNC
0x9f80, // ROUND_ROUND
0xdf80, // ROUND_CEIL
0xbf80 // ROUND_FLOOR
};
memcpy(m_near.ssecontrol, sse_control, sizeof(m_near.ssecontrol));
m_near.single1 = 1.0f;