Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-23 00:39:36 +03:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

i386: emms should trap too

Browse Source
This commit is contained in:
cracyc 2023-02-06 09:00:39 -06:00
parent 241cdf4fea
commit b4732de782
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
src/devices/cpu/i386/pentops.hxx
View File

@ -1912,6 +1912,11 @@ void i386_device::mmx_paddd_r64_rm64() // Opcode 0f fe
void i386_device::mmx_emms() // Opcode 0f 77
{
if (m_cr[0] & 0xc)
{
i386_trap(FAULT_NM, 0, 0);
return;
}
m_x87_tw = 0xffff; // tag word = 0xffff
// TODO
CYCLES(1); // TODO: correct cycle count