invalid opcode 0f44
Posted: Wed 06 Dec, 2017 3:32 pm
PCem v12
CPU: Pentium MMX 233 and WinChip 240 are tried with same result.
CPU: Pentium MMX 233 and WinChip 240 are tried with same result.
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Re: invalid opcode 0f44
Posted: Wed 06 Dec, 2017 3:54 pm
Oops, thtat is a CMOV instruction. Is any of PCem emulated CPU support this?
Re: invalid opcode 0f44
Posted: Wed 06 Dec, 2017 4:55 pm
quick google, and it appears that it first was introduced in Pentium Pro so 686 cpu's, PCem does emulate up to 586.
Re: invalid opcode 0f44
Posted: Wed 06 Dec, 2017 5:24 pm
"PCem does emulate up to (a) 5x86" is a dangerous statement imo
the AMD 5x86 was introduced in November 1995, that would lead one's to think PCem doesn't have the Pentium 150 onward (those were launched in early 1996), let alone, the Pentium MMX in 1997
the AMD 5x86 was introduced in November 1995, that would lead one's to think PCem doesn't have the Pentium 150 onward (those were launched in early 1996), let alone, the Pentium MMX in 1997
Re: invalid opcode 0f44
Posted: Wed 06 Dec, 2017 5:51 pm
Cyrix 6x86MX is the only CPU PCem emulates that supports CMOV.
Re: invalid opcode 0f44
Posted: Wed 06 Dec, 2017 6:42 pm
It was dangerous statement, but i wasnt sure about 6x86MX 