Various 486 improvements

- Added SL-Enhanced versions of Intel 486 CPUs and Enhanced AMD Am486DX2/DX4 CPUs
- Cleaned up the 486 CPU types and updated intel_4x0.c to reflect this
- Fixed some incorrect EDX reset and CPUID values
- Blacklisted non-SMM capable 486 CPUs on the Soyo 4SA2 motherboard
- Merged the non-OverDrive and OverDrive Intel DX4s because of further research confirming them to be functionally identical
- Removed SMM support on early 486 CPUs
This commit is contained in:
nerd73
2021-04-15 21:38:03 -06:00
parent ebe6a16be3
commit 8e3b09f323
8 changed files with 120 additions and 111 deletions

View File

@@ -313,17 +313,29 @@ const cpu_family_t cpu_families[] = {
{"16", CPU_i486SX, fpus_486sx, 16000000, 1, 5000, 0x420, 0, 0, CPU_SUPPORTS_DYNAREC, 3, 3,3,3, 2},
{"20", CPU_i486SX, fpus_486sx, 20000000, 1, 5000, 0x420, 0, 0, CPU_SUPPORTS_DYNAREC, 4, 4,3,3, 3},
{"25", CPU_i486SX, fpus_486sx, 25000000, 1, 5000, 0x422, 0, 0, CPU_SUPPORTS_DYNAREC, 4, 4,3,3, 3},
{"33", CPU_i486SX, fpus_486sx, 33333333, 1, 5000, 0x42a, 0, 0, CPU_SUPPORTS_DYNAREC, 6, 6,3,3, 4},
{"33", CPU_i486SX, fpus_486sx, 33333333, 1, 5000, 0x422, 0, 0, CPU_SUPPORTS_DYNAREC, 6, 6,3,3, 4},
{"", 0}
}
}, {
},
{
.package = CPU_PKG_SOCKET1,
.manufacturer = "Intel",
.name = "i486SX (SL-Enhanced)",
.internal_name = "i486sx_slenh",
.cpus = (const CPU[]) {
{"25", CPU_i486SX_SLENH, fpus_486sx, 25000000, 1, 5000, 0x423, 0x423, 0, CPU_SUPPORTS_DYNAREC, 4, 4,3,3, 3},
{"33", CPU_i486SX_SLENH, fpus_486sx, 33333333, 1, 5000, 0x42a, 0x42a, 0, CPU_SUPPORTS_DYNAREC, 6, 6,3,3, 4},
{"", 0}
}
},
{
.package = CPU_PKG_SOCKET1,
.manufacturer = "Intel",
.name = "i486SX2",
.internal_name = "i486sx2",
.cpus = (const CPU[]) {
{"50", CPU_i486SX2, fpus_486sx, 50000000, 2, 5000, 0x45b, 0, 0, CPU_SUPPORTS_DYNAREC, 8, 8,6,6, 6},
{"66 (Q0569)", CPU_i486SX2, fpus_486sx, 66666666, 2, 5000, 0x45b, 0, 0, CPU_SUPPORTS_DYNAREC, 8, 8,6,6, 8},
{"50", CPU_i486SX_SLENH, fpus_486sx, 50000000, 2, 5000, 0x45b, 0x45b, 0, CPU_SUPPORTS_DYNAREC, 8, 8,6,6, 6},
{"66 (Q0569)", CPU_i486SX_SLENH, fpus_486sx, 66666666, 2, 5000, 0x45b, 0x45b, 0, CPU_SUPPORTS_DYNAREC, 8, 8,6,6, 8},
{"", 0}
}
}, {
@@ -333,49 +345,62 @@ const cpu_family_t cpu_families[] = {
.internal_name = "i486dx",
.cpus = (const CPU[]) {
{"25", CPU_i486DX, fpus_internal, 25000000, 1, 5000, 0x404, 0, 0, CPU_SUPPORTS_DYNAREC, 4, 4,3,3, 3},
{"33", CPU_i486DX, fpus_internal, 33333333, 1, 5000, 0x414, 0, 0, CPU_SUPPORTS_DYNAREC, 6, 6,3,3, 4},
{"33", CPU_i486DX, fpus_internal, 33333333, 1, 5000, 0x404, 0, 0, CPU_SUPPORTS_DYNAREC, 6, 6,3,3, 4},
{"50", CPU_i486DX, fpus_internal, 50000000, 1, 5000, 0x411, 0, 0, CPU_SUPPORTS_DYNAREC, 8, 8,4,4, 6},
{"", 0}
}
},
{
.package = CPU_PKG_SOCKET1,
.manufacturer = "Intel",
.name = "i486DX (SL-Enhanced)",
.internal_name = "i486dx_slenh",
.cpus = (const CPU[]) {
{"33", CPU_i486DX_SLENH, fpus_internal, 33333333, 1, 5000, 0x414, 0x414, 0, CPU_SUPPORTS_DYNAREC, 6, 6,3,3, 4},
{"50", CPU_i486DX_SLENH, fpus_internal, 50000000, 1, 5000, 0x414, 0x414, 0, CPU_SUPPORTS_DYNAREC, 8, 8,4,4, 6},
{"", 0}
}
}, {
.package = CPU_PKG_SOCKET1,
.manufacturer = "Intel",
.name = "i486DX2",
.internal_name = "i486dx2",
.cpus = (const CPU[]) {
{"40", CPU_i486DX2, fpus_internal, 40000000, 2, 5000, 0x430, 0x430, 0, CPU_SUPPORTS_DYNAREC, 7, 7,6,6, 5},
{"50", CPU_i486DX2, fpus_internal, 50000000, 2, 5000, 0x433, 0x433, 0, CPU_SUPPORTS_DYNAREC, 8, 8,6,6, 6},
{"66", CPU_i486DX2, fpus_internal, 66666666, 2, 5000, 0x435, 0x435, 0, CPU_SUPPORTS_DYNAREC, 12,12,6,6, 8},
{"40", CPU_i486DX, fpus_internal, 40000000, 2, 5000, 0x430, 0, 0, CPU_SUPPORTS_DYNAREC, 7, 7,6,6, 5},
{"50", CPU_i486DX, fpus_internal, 50000000, 2, 5000, 0x433, 0, 0, CPU_SUPPORTS_DYNAREC, 8, 8,6,6, 6},
{"66", CPU_i486DX, fpus_internal, 66666666, 2, 5000, 0x433, 0, 0, CPU_SUPPORTS_DYNAREC, 12,12,6,6, 8},
{"", 0}
}
}, {
},
{
.package = CPU_PKG_SOCKET1,
.manufacturer = "Intel",
.name = "i486DX2 (SL-Enhanced)",
.internal_name = "i486dx2_slenh",
.cpus = (const CPU[]) {
{"40", CPU_i486DX_SLENH, fpus_internal, 40000000, 2, 5000, 0x435, 0x435, 0, CPU_SUPPORTS_DYNAREC, 7, 7,6,6, 5},
{"50", CPU_i486DX_SLENH, fpus_internal, 50000000, 2, 5000, 0x435, 0x435, 0, CPU_SUPPORTS_DYNAREC, 8, 8,6,6, 6},
{"66", CPU_i486DX_SLENH, fpus_internal, 66666666, 2, 5000, 0x435, 0x435, 0, CPU_SUPPORTS_DYNAREC, 12,12,6,6, 8},
{"", 0}
}
}, {
.package = CPU_PKG_SOCKET3_PC330,
.manufacturer = "Intel",
.name = "i486DX2",
.internal_name = "i486dx2_pc330",
.cpus = (const CPU[]) {
{"50", CPU_i486DX2, fpus_internal, 50000000, 2, 5000, 0x470, 0x470, 0, CPU_SUPPORTS_DYNAREC, 8, 8,6,6, 6},
{"66", CPU_i486DX2, fpus_internal, 66666666, 2, 5000, 0x470, 0x470, 0, CPU_SUPPORTS_DYNAREC, 12,12,6,6, 8},
{"50", CPU_i486DX_SLENH, fpus_internal, 50000000, 2, 5000, 0x470, 0x470, 0, CPU_SUPPORTS_DYNAREC, 8, 8,6,6, 6},
{"66", CPU_i486DX_SLENH, fpus_internal, 66666666, 2, 5000, 0x470, 0x470, 0, CPU_SUPPORTS_DYNAREC, 12,12,6,6, 8},
{"", 0}
}
}, {
.package = CPU_PKG_SOCKET3 | CPU_PKG_SOCKET3_PC330,
.package = CPU_PKG_SOCKET1 | CPU_PKG_SOCKET3_PC330, /*OEM versions are 3.3V, Retail versions are 3.3V with a 5V regulator for installation in older boards. hey are functionally identical*/
.manufacturer = "Intel",
.name = "iDX4",
.internal_name = "idx4",
.cpus = (const CPU[]) {
{"75", CPU_iDX4, fpus_internal, 75000000, 3.0, 5000, 0x480, 0x480, 0x0000, CPU_SUPPORTS_DYNAREC, 12,12, 9, 9, 9}, /*CPUID available on DX4, >= 75 MHz*/
{"100", CPU_iDX4, fpus_internal, 100000000, 3.0, 5000, 0x483, 0x483, 0x0000, CPU_SUPPORTS_DYNAREC, 18,18, 9, 9, 12}, /*Is on some real Intel DX2s, limit here is pretty arbitary*/
{"", 0}
}
}, {
.package = CPU_PKG_SOCKET1,
.manufacturer = "Intel",
.name = "iDX4 OverDrive",
.internal_name = "idx4_od",
.cpus = (const CPU[]) {
{"75", CPU_iDX4, fpus_internal, 75000000, 3, 5000, 0x1480, 0x1480, 0, CPU_SUPPORTS_DYNAREC, 12,12,9,9, 9}, /*Only added the DX4 OverDrive as the others would be redundant*/
{"100", CPU_iDX4, fpus_internal, 100000000, 3, 5000, 0x1480, 0x1480, 0, CPU_SUPPORTS_DYNAREC, 18,18,9,9, 12},
{"75", CPU_i486DX_SLENH, fpus_internal, 75000000, 3.0, 5000, 0x480, 0x480, 0x0000, CPU_SUPPORTS_DYNAREC, 12,12, 9, 9, 9},
{"100", CPU_i486DX_SLENH, fpus_internal, 100000000, 3.0, 5000, 0x483, 0x483, 0x0000, CPU_SUPPORTS_DYNAREC, 18,18, 9, 9, 12},
{"", 0}
}
}, {
@@ -394,8 +419,8 @@ const cpu_family_t cpu_families[] = {
.name = "Am486SX",
.internal_name = "am486sx",
.cpus = (const CPU[]) {
{"33", CPU_Am486SX, fpus_486sx, 33333333, 1, 5000, 0x42a, 0, 0, CPU_SUPPORTS_DYNAREC, 6, 6, 3, 3, 4},
{"40", CPU_Am486SX, fpus_486sx, 40000000, 1, 5000, 0x42a, 0, 0, CPU_SUPPORTS_DYNAREC, 7, 7, 3, 3, 5},
{"33", CPU_Am486SX, fpus_486sx, 33333333, 1, 5000, 0x422, 0, 0, CPU_SUPPORTS_DYNAREC, 6, 6, 3, 3, 4},
{"40", CPU_Am486SX, fpus_486sx, 40000000, 1, 5000, 0x422, 0, 0, CPU_SUPPORTS_DYNAREC, 7, 7, 3, 3, 5},
{"", 0}
}
}, {
@@ -404,8 +429,8 @@ const cpu_family_t cpu_families[] = {
.name = "Am486SX2",
.internal_name = "am486sx2",
.cpus = (const CPU[]) {
{"50", CPU_Am486SX2, fpus_486sx, 50000000, 2, 5000, 0x45b, 0x45b, 0, CPU_SUPPORTS_DYNAREC, 8, 8, 6, 6, 6}, /*CPUID available on SX2, DX2, DX4, 5x86, >= 50 MHz*/
{"66", CPU_Am486SX2, fpus_486sx, 66666666, 2, 5000, 0x45b, 0x45b, 0, CPU_SUPPORTS_DYNAREC, 12,12, 6, 6, 8}, /*Isn't on all real AMD SX2s and DX2s, availability here is pretty arbitary (and distinguishes them from the Intel chips)*/
{"50", CPU_Am486SX, fpus_486sx, 50000000, 2, 5000, 0x45b, 0, 0, CPU_SUPPORTS_DYNAREC, 8, 8, 6, 6, 6},
{"66", CPU_Am486SX, fpus_486sx, 66666666, 2, 5000, 0x45b, 0, 0, CPU_SUPPORTS_DYNAREC, 12,12, 6, 6, 8},
{"", 0}
}
}, {
@@ -414,8 +439,8 @@ const cpu_family_t cpu_families[] = {
.name = "Am486DX",
.internal_name = "am486dx",
.cpus = (const CPU[]) {
{"33", CPU_Am486DX, fpus_internal, 33333333, 1, 5000, 0x430, 0, 0, CPU_SUPPORTS_DYNAREC, 6, 6, 3, 3, 4},
{"40", CPU_Am486DX, fpus_internal, 40000000, 1, 5000, 0x430, 0, 0, CPU_SUPPORTS_DYNAREC, 7, 7, 3, 3, 5},
{"33", CPU_Am486DX, fpus_internal, 33333333, 1, 5000, 0x412, 0, 0, CPU_SUPPORTS_DYNAREC, 6, 6, 3, 3, 4},
{"40", CPU_Am486DX, fpus_internal, 40000000, 1, 5000, 0x412, 0, 0, CPU_SUPPORTS_DYNAREC, 7, 7, 3, 3, 5},
{"", 0}
}
}, {
@@ -424,9 +449,9 @@ const cpu_family_t cpu_families[] = {
.name = "Am486DX2",
.internal_name = "am486dx2",
.cpus = (const CPU[]) {
{"50", CPU_Am486DX2, fpus_internal, 50000000, 2, 5000, 0x470, 0x470, 0, CPU_SUPPORTS_DYNAREC, 8, 8, 6, 6, 6},
{"66", CPU_Am486DX2, fpus_internal, 66666666, 2, 5000, 0x470, 0x470, 0, CPU_SUPPORTS_DYNAREC, 12,12, 6, 6, 8},
{"80", CPU_Am486DX2, fpus_internal, 80000000, 2, 5000, 0x470, 0x470, 0, CPU_SUPPORTS_DYNAREC, 14,14, 6, 6, 10},
{"50", CPU_Am486DX, fpus_internal, 50000000, 2, 5000, 0x432, 0, 0, CPU_SUPPORTS_DYNAREC, 8, 8, 6, 6, 6},
{"66", CPU_Am486DX, fpus_internal, 66666666, 2, 5000, 0x432, 0, 0, CPU_SUPPORTS_DYNAREC, 12,12, 6, 6, 8},
{"80", CPU_Am486DX, fpus_internal, 80000000, 2, 5000, 0x432, 0, 0, CPU_SUPPORTS_DYNAREC, 14,14, 6, 6, 10},
{"", 0}
}
}, {
@@ -435,10 +460,32 @@ const cpu_family_t cpu_families[] = {
.name = "Am486DX4",
.internal_name = "am486dx4",
.cpus = (const CPU[]) {
{"75", CPU_Am486DX4, fpus_internal, 75000000, 3.0, 5000, 0x482, 0x482, 0, CPU_SUPPORTS_DYNAREC, 12,12, 9, 9, 9},
{"90", CPU_Am486DX4, fpus_internal, 90000000, 3.0, 5000, 0x482, 0x482, 0, CPU_SUPPORTS_DYNAREC, 15,15, 9, 9, 12},
{"100", CPU_Am486DX4, fpus_internal, 100000000, 3.0, 5000, 0x482, 0x482, 0, CPU_SUPPORTS_DYNAREC, 15,15, 9, 9, 12},
{"120", CPU_Am486DX4, fpus_internal, 120000000, 3.0, 5000, 0x482, 0x482, 0, CPU_SUPPORTS_DYNAREC, 21,21, 9, 9, 15},
{"75", CPU_Am486DX, fpus_internal, 75000000, 3.0, 5000, 0x432, 0, 0, CPU_SUPPORTS_DYNAREC, 12,12, 9, 9, 9},
{"90", CPU_Am486DX, fpus_internal, 90000000, 3.0, 5000, 0x432, 0, 0, CPU_SUPPORTS_DYNAREC, 15,15, 9, 9, 12},
{"100", CPU_Am486DX, fpus_internal, 100000000, 3.0, 5000, 0x432, 0, 0, CPU_SUPPORTS_DYNAREC, 15,15, 9, 9, 12},
{"120", CPU_Am486DX, fpus_internal, 120000000, 3.0, 5000, 0x432, 0, 0, CPU_SUPPORTS_DYNAREC, 21,21, 9, 9, 15},
{"", 0}
}
},
{
.package = CPU_PKG_SOCKET3,
.manufacturer = "AMD",
.name = "Am486DX2 (Enhanced)",
.internal_name = "enh_am486dx2",
.cpus = (const CPU[]) {
{"66", CPU_ENH_Am486DX, fpus_internal, 66666666, 2, 5000, 0x435, 0x435, 0, CPU_SUPPORTS_DYNAREC, 12,12, 6, 6, 8},
{"80", CPU_ENH_Am486DX, fpus_internal, 80000000, 2, 5000, 0x435, 0x435, 0, CPU_SUPPORTS_DYNAREC, 14,14, 6, 6, 10},
{"", 0}
}
}, {
.package = CPU_PKG_SOCKET3,
.manufacturer = "AMD",
.name = "Am486DX4 (Enhanced)",
.internal_name = "enh_am486dx4",
.cpus = (const CPU[]) {
{"75", CPU_ENH_Am486DX, fpus_internal, 75000000, 3.0, 5000, 0x482, 0x482, 0, CPU_SUPPORTS_DYNAREC, 12,12, 9, 9, 9},
{"100", CPU_ENH_Am486DX, fpus_internal, 100000000, 3.0, 5000, 0x482, 0x482, 0, CPU_SUPPORTS_DYNAREC, 15,15, 9, 9, 12},
{"120", CPU_ENH_Am486DX, fpus_internal, 120000000, 3.0, 5000, 0x482, 0x482, 0, CPU_SUPPORTS_DYNAREC, 21,21, 9, 9, 15},
{"", 0}
}
}, {
@@ -447,9 +494,9 @@ const cpu_family_t cpu_families[] = {
.name = "Am5x86",
.internal_name = "am5x86",
.cpus = (const CPU[]) {
{"P75", CPU_Am5x86, fpus_internal, 133333333, 4.0, 5000, 0x4e0, 0x4e0, 0, CPU_SUPPORTS_DYNAREC, 24,24,12,12, 16},
{"P75+", CPU_Am5x86, fpus_internal, 150000000, 3.0, 5000, 0x482, 0x482, 0, CPU_SUPPORTS_DYNAREC, 28,28,12,12, 20},/*The rare P75+ was indeed a triple-clocked 150 MHz according to research*/
{"P90", CPU_Am5x86, fpus_internal, 160000000, 4.0, 5000, 0x4e0, 0x4e0, 0, CPU_SUPPORTS_DYNAREC, 28,28,12,12, 20},/*160 MHz on a 40 MHz bus was a common overclock and "5x86/P90" was used by a number of BIOSes to refer to that configuration*/
{"P75", CPU_ENH_Am486DX, fpus_internal, 133333333, 4.0, 5000, 0x4e0, 0x4e0, 0, CPU_SUPPORTS_DYNAREC, 24,24,12,12, 16},
{"P75+", CPU_ENH_Am486DX, fpus_internal, 150000000, 3.0, 5000, 0x482, 0x482, 0, CPU_SUPPORTS_DYNAREC, 28,28,12,12, 20},/*The rare P75+ was indeed a triple-clocked 150 MHz according to research*/
{"P90", CPU_ENH_Am486DX, fpus_internal, 160000000, 4.0, 5000, 0x4e0, 0x4e0, 0, CPU_SUPPORTS_DYNAREC, 28,28,12,12, 20},/*160 MHz on a 40 MHz bus was a common overclock and "5x86/P90" was used by a number of BIOSes to refer to that configuration*/
{"", 0}
}
}, {
@@ -479,9 +526,9 @@ const cpu_family_t cpu_families[] = {
.name = "Cx486DX2",
.internal_name = "cx486dx2",
.cpus = (const CPU[]) {
{"50", CPU_Cx486DX2, fpus_internal, 50000000, 2.0, 5000, 0x430, 0, 0x081b, CPU_SUPPORTS_DYNAREC, 8, 8, 6, 6, 6},
{"66", CPU_Cx486DX2, fpus_internal, 66666666, 2.0, 5000, 0x430, 0, 0x0b1b, CPU_SUPPORTS_DYNAREC, 12,12, 6, 6, 8},
{"80", CPU_Cx486DX2, fpus_internal, 80000000, 2.0, 5000, 0x430, 0, 0x311b, CPU_SUPPORTS_DYNAREC, 14,14, 6, 6, 10},
{"50", CPU_Cx486DX, fpus_internal, 50000000, 2.0, 5000, 0x430, 0, 0x081b, CPU_SUPPORTS_DYNAREC, 8, 8, 6, 6, 6},
{"66", CPU_Cx486DX, fpus_internal, 66666666, 2.0, 5000, 0x430, 0, 0x0b1b, CPU_SUPPORTS_DYNAREC, 12,12, 6, 6, 8},
{"80", CPU_Cx486DX, fpus_internal, 80000000, 2.0, 5000, 0x430, 0, 0x311b, CPU_SUPPORTS_DYNAREC, 14,14, 6, 6, 10},
{"", 0}
}
}, {
@@ -490,8 +537,8 @@ const cpu_family_t cpu_families[] = {
.name = "Cx486DX4",
.internal_name = "cx486dx4",
.cpus = (const CPU[]) {
{"75", CPU_Cx486DX4, fpus_internal, 75000000, 3.0, 5000, 0x480, 0, 0x361f, CPU_SUPPORTS_DYNAREC, 12,12, 9, 9, 9},
{"100", CPU_Cx486DX4, fpus_internal, 100000000, 3.0, 5000, 0x480, 0, 0x361f, CPU_SUPPORTS_DYNAREC, 15,15, 9, 9, 12},
{"75", CPU_Cx486DX, fpus_internal, 75000000, 3.0, 5000, 0x480, 0, 0x361f, CPU_SUPPORTS_DYNAREC, 12,12, 9, 9, 9},
{"100", CPU_Cx486DX, fpus_internal, 100000000, 3.0, 5000, 0x480, 0, 0x361f, CPU_SUPPORTS_DYNAREC, 15,15, 9, 9, 12},
{"", 0}
}
}, {
@@ -522,7 +569,7 @@ const cpu_family_t cpu_families[] = {
.name = "STPC-DX2",
.internal_name = "stpc_dx2",
.cpus = (const CPU[]) {
{"133", CPU_Cx486DX2, fpus_internal, 133333333, 2.0, 3300, 0x430, 0, 0x0b1b, CPU_SUPPORTS_DYNAREC, 14,14, 6, 6, 10},
{"133", CPU_Cx486DX, fpus_internal, 133333333, 2.0, 3300, 0x430, 0, 0x0b1b, CPU_SUPPORTS_DYNAREC, 14,14, 6, 6, 10},
{"", 0}
}
}, {