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Extended information for AMD and Intel processors (CPUID)

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This commit is contained in:
Stanislav Shwartsman 2005-02-14 21:17:20 +00:00
parent b69345225b
commit a01347f17d
1 changed files with 66 additions and 14 deletions
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80
bochs/cpu/cpuid.cc
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@ -272,20 +272,11 @@ void BX_CPU_C::CPUID(bxInstruction_c *i)
RDX = get_std_cpuid_features ();
break;
#if 0
#if BX_CPU_LEVEL >= 6
case 2:
RAX = 0; // cache and TLB information (still not implemented)
RBX = 0; // cache and TLB information (still not implemented)
RCX = 0; // cache and TLB information (still not implemented)
RDX = 0; // cache and TLB information (still not implemented)
#endif
#endif
// Here should be extended information for Pentum 4 processor
// still not implemented ...
#if BX_CPU_LEVEL >= 6 && BX_SUPPORT_SSE >= 2
#if BX_SUPPORT_X86_64
// Extended information for AMD Athlon processor
// x86-64 functions
case 0x80000000:
// max function supported.
@ -333,14 +324,75 @@ void BX_CPU_C::CPUID(bxInstruction_c *i)
RCX = 0;
break;
// Processor Brand String, use the value given
// in AMD manuals.
case 0x80000002:
RAX = 0x20444D41; // "AMD "
RBX = 0x6C687441; // "Athl"
RCX = 0x74286E6F; // "on(t"
RDX = 0x7020296D; // "m) p"
break;
case 0x80000003:
RAX = 0x65636F72; // "roce"
RBX = 0x6C687441; // "ssor"
RCX = 0x00000000;
RDX = 0x00000000;
break;
case 0x80000004:
RAX = 0x00000000;
RBX = 0x00000000;
RCX = 0x00000000;
RDX = 0x00000000;
break;
case 0x80000008:
// virtual & phys address size in low 2 bytes.
RAX = 0x00003028;
RAX = 0x00003020; // 48-bit virtual address and 32 bit physical
RBX = 0;
RCX = 0;
RDX = 0; // Reserved, undefined
break;
#endif // #if BX_SUPPORT_X86_64
#else
// Extended information for Intel P4 processor
case 0x80000000:
// max function supported.
RAX = 0x80000004;
RBX = 0x756e6547; // "Genu"
RDX = 0x49656e69; // "ineI"
RCX = 0x6c65746e; // "ntel"
break;
case 0x80000001: // Reserved
RAX = 0;
RBX = 0;
RCX = 0;
RDX = 0;
break;
// Processor Brand String, use the value that is returned
// by the first processor in the Pentium 4 family
// (according to Intel manual)
case 0x80000002:
RAX = 0x20202020; // " "
RBX = 0x20202020; // " "
RCX = 0x20202020; // " "
RCX = 0x6E492020; // " In"
break;
case 0x80000003:
RAX = 0x286C6574; // "tel("
RBX = 0x50202952; // "R) P"
RCX = 0x69746E65; // "enti"
RCX = 0x52286D75; // "um(R"
break;
case 0x80000004:
RAX = 0x20342029; // ") 4 "
RBX = 0x20555043; // "CPU "
RCX = 0x20202020; // " "
RCX = 0x00202020; // " "
break;
#endif
#endif
default:
RAX = 0;