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Added Cirrus Logic GD5428 emulation.

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As part of this, added emulation of the GD5428-based IBM 1MB SVGA Adapter/A,
along with support for external graphics cards on MCA platforms, adding the
ability to override the onboard VGA controller.
This commit is contained in:
SarahW 2020-02-01 16:30:34 +00:00
commit 68a2d8cb3c
14 changed files with 342 additions and 43 deletions
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14
src/model.c
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@ -127,7 +127,7 @@ void xt_zenith_init();
void at_mvp3_init();
int model;
int AMSTRAD, AT, PCI, TANDY;
int AMSTRAD, AT, PCI, TANDY, MCA;
MODEL models[] =
{
@ -174,7 +174,7 @@ MODEL models[] =
{"[286] IBM AT", ROM_IBMAT, "ibmat", { {"", cpus_ibmat}, {"", NULL}, {"", NULL}}, MODEL_GFX_NONE|MODEL_AT, 256,15872, 128, ibm_at_init, NULL},
{"[286] IBM PS/1 model 2011", ROM_IBMPS1_2011, "ibmps1es", { {"", cpus_ps1_m2011}, {"", NULL}, {"", NULL}}, MODEL_GFX_FIXED|MODEL_AT|MODEL_PS2, 512,16384, 512, ps1_m2011_init, NULL},
{"[286] IBM PS/2 Model 30-286", ROM_IBMPS2_M30_286, "ibmps2_m30_286", { {"", cpus_ps2_m30_286}, {"", NULL}, {"", NULL}}, MODEL_GFX_FIXED|MODEL_AT|MODEL_PS2, 1, 16, 1, ps2_m30_286_init, NULL},
{"[286] IBM PS/2 Model 50", ROM_IBMPS2_M50, "ibmps2_m50", { {"", cpus_ps2_m30_286}, {"", NULL}, {"", NULL}}, MODEL_GFX_FIXED|MODEL_AT|MODEL_PS2|MODEL_MCA, 1, 16, 1, ps2_model_50_init, NULL},
{"[286] IBM PS/2 Model 50", ROM_IBMPS2_M50, "ibmps2_m50", { {"", cpus_ps2_m30_286}, {"", NULL}, {"", NULL}}, MODEL_GFX_DISABLE_SW|MODEL_AT|MODEL_PS2|MODEL_MCA, 1, 16, 1, ps2_model_50_init, NULL},
{"[286] IBM XT Model 286", ROM_IBMXT286, "ibmxt286", { {"", cpus_ibmxt286}, {"", NULL}, {"", NULL}}, MODEL_GFX_NONE|MODEL_AT, 256,15872, 128, ibm_at_init, NULL},
{"[286] Samsung SPC-4200P", ROM_SPC4200P, "spc4200p", { {"", cpus_286}, {"", NULL}, {"", NULL}}, MODEL_GFX_NONE|MODEL_AT|MODEL_PS2|MODEL_HAS_IDE, 512, 2048, 128, at_scat_init, NULL},
{"[286] Samsung SPC-4216P", ROM_SPC4216P, "spc4216p", { {"", cpus_286}, {"", NULL}, {"", NULL}}, MODEL_GFX_NONE|MODEL_AT|MODEL_PS2|MODEL_HAS_IDE, 1, 5, 1, at_scat_init, NULL},
@ -190,21 +190,21 @@ MODEL models[] =
{"[386SX] DTK 386SX clone", ROM_DTK386, "dtk386", { {"Intel", cpus_i386SX}, {"AMD", cpus_Am386SX}, {"Cyrix", cpus_486SLC}}, MODEL_GFX_NONE|MODEL_AT|MODEL_HAS_IDE, 512,16384, 128, at_neat_init, NULL},
{"[386SX] Epson PC AX3", ROM_EPSON_PCAX3, "epson_pcax3", { {"Intel", cpus_i386SX}, {"AMD", cpus_Am386SX}, {"Cyrix", cpus_486SLC}}, MODEL_GFX_NONE|MODEL_AT, 256,15872, 128, at_init, NULL},
{"[386SX] IBM PS/1 model 2121", ROM_IBMPS1_2121, "ibmps1_2121", { {"Intel", cpus_i386SX}, {"AMD", cpus_Am386SX}, {"Cyrix", cpus_486SLC}}, MODEL_GFX_FIXED|MODEL_AT|MODEL_PS2|MODEL_HAS_IDE, 1, 16, 1, ps1_m2121_init, NULL},
{"[386SX] IBM PS/2 Model 55SX", ROM_IBMPS2_M55SX, "ibmps2_m55sx", { {"Intel", cpus_i386SX}, {"AMD", cpus_Am386SX}, {"Cyrix", cpus_486SLC}}, MODEL_GFX_FIXED|MODEL_AT|MODEL_PS2|MODEL_MCA, 1, 8, 1, ps2_model_55sx_init, NULL},
{"[386SX] IBM PS/2 Model 55SX", ROM_IBMPS2_M55SX, "ibmps2_m55sx", { {"Intel", cpus_i386SX}, {"AMD", cpus_Am386SX}, {"Cyrix", cpus_486SLC}}, MODEL_GFX_DISABLE_SW|MODEL_AT|MODEL_PS2|MODEL_MCA, 1, 8, 1, ps2_model_55sx_init, NULL},
{"[386SX] KMX-C-02", ROM_KMXC02, "kmxc02", { {"Intel", cpus_i386SX}, {"AMD", cpus_Am386SX}, {"Cyrix", cpus_486SLC}}, MODEL_GFX_NONE|MODEL_AT, 512,16384, 512, at_scatsx_init, NULL},
{"[386SX] Packard Bell Legend 300SX", ROM_PB_L300SX, "pb_l300sx", { {"Intel", cpus_i386SX}, {"AMD", cpus_Am386SX}, {"Cyrix", cpus_486SLC}}, MODEL_GFX_NONE|MODEL_AT|MODEL_PS2|MODEL_HAS_IDE, 1, 16, 1, pb_l300sx_init, NULL},
{"[386DX] AMI 386DX clone", ROM_AMI386DX_OPTI495, "ami386dx", { {"Intel", cpus_i386DX}, {"AMD", cpus_Am386DX}, {"Cyrix", cpus_486DLC}}, MODEL_GFX_NONE|MODEL_AT|MODEL_HAS_IDE, 1, 256, 1, at_opti495_init, NULL},
{"[386DX] Compaq Deskpro 386", ROM_DESKPRO_386, "deskpro386", { {"Intel", cpus_i386DX}, {"AMD", cpus_Am386DX}, {"Cyrix", cpus_486DLC}}, MODEL_GFX_NONE|MODEL_AT, 1, 15, 1, deskpro386_init, NULL},
{"[386DX] IBM PS/2 Model 70 (type 3)", ROM_IBMPS2_M70_TYPE3, "ibmps2_m70_type3", { {"Intel", cpus_i386DX}, {"AMD", cpus_Am386DX}, {"Cyrix", cpus_486DLC}}, MODEL_GFX_FIXED|MODEL_AT|MODEL_PS2|MODEL_MCA, 2, 16, 2, ps2_model_70_init, NULL},
{"[386DX] IBM PS/2 Model 80", ROM_IBMPS2_M80, "ibmps2_m80", { {"Intel", cpus_i386DX}, {"AMD", cpus_Am386DX}, {"Cyrix", cpus_486DLC}}, MODEL_GFX_FIXED|MODEL_AT|MODEL_PS2|MODEL_MCA, 1, 12, 1, ps2_model_80_init, NULL},
{"[386DX] IBM PS/2 Model 70 (type 3)", ROM_IBMPS2_M70_TYPE3, "ibmps2_m70_type3", { {"Intel", cpus_i386DX}, {"AMD", cpus_Am386DX}, {"Cyrix", cpus_486DLC}}, MODEL_GFX_DISABLE_SW|MODEL_AT|MODEL_PS2|MODEL_MCA, 2, 16, 2, ps2_model_70_init, NULL},
{"[386DX] IBM PS/2 Model 80", ROM_IBMPS2_M80, "ibmps2_m80", { {"Intel", cpus_i386DX}, {"AMD", cpus_Am386DX}, {"Cyrix", cpus_486DLC}}, MODEL_GFX_DISABLE_SW|MODEL_AT|MODEL_PS2|MODEL_MCA, 1, 12, 1, ps2_model_80_init, NULL},
{"[386DX] MR 386DX clone", ROM_MR386DX_OPTI495, "mr386dx", { {"Intel", cpus_i386DX}, {"AMD", cpus_Am386DX}, {"Cyrix", cpus_486DLC}}, MODEL_GFX_NONE|MODEL_AT|MODEL_HAS_IDE, 1, 256, 1, at_opti495_init, NULL},
{"[486] AMI 486 clone", ROM_AMI486, "ami486", { {"Intel", cpus_i486}, {"AMD", cpus_Am486}, {"Cyrix", cpus_Cx486}}, MODEL_GFX_NONE|MODEL_AT|MODEL_HAS_IDE, 1, 256, 1, at_ali1429_init, NULL},
{"[486] AMI WinBIOS 486", ROM_WIN486, "win486", { {"Intel", cpus_i486}, {"AMD", cpus_Am486}, {"Cyrix", cpus_Cx486}}, MODEL_GFX_NONE|MODEL_AT|MODEL_HAS_IDE, 1, 256, 1, at_ali1429_init, NULL},
{"[486] Award SiS 496/497", ROM_SIS496, "sis496", { {"Intel", cpus_i486}, {"AMD", cpus_Am486}, {"Cyrix", cpus_Cx486}}, MODEL_GFX_NONE|MODEL_AT|MODEL_PCI|MODEL_HAS_IDE, 1, 256, 1, at_sis496_init, NULL},
{"[486] Elonex PC-425X", ROM_ELX_PC425X, "elx_pc425x", { {"Intel", cpus_i486}, {"AMD", cpus_Am486}, {"Cyrix", cpus_Cx486}}, MODEL_GFX_FIXED|MODEL_AT|MODEL_HAS_IDE, 1, 256, 1, at_sl82c460_init, NULL},
{"[486] IBM PS/2 Model 70 (type 4)", ROM_IBMPS2_M70_TYPE4, "ibmps2_m70_type4", { {"Intel", cpus_i486}, {"AMD", cpus_Am486}, {"Cyrix", cpus_Cx486}}, MODEL_GFX_FIXED|MODEL_AT|MODEL_PS2|MODEL_MCA, 2, 16, 2, ps2_model_70_init, NULL},
{"[486] IBM PS/2 Model 70 (type 4)", ROM_IBMPS2_M70_TYPE4, "ibmps2_m70_type4", { {"Intel", cpus_i486}, {"AMD", cpus_Am486}, {"Cyrix", cpus_Cx486}}, MODEL_GFX_DISABLE_SW|MODEL_AT|MODEL_PS2|MODEL_MCA, 2, 16, 2, ps2_model_70_init, NULL},
{"[486] Packard Bell PB410A", ROM_PB410A, "pb410a", { {"Intel", cpus_i486}, {"AMD", cpus_Am486}, {"Cyrix", cpus_Cx486}}, MODEL_GFX_DISABLE_SW|MODEL_AT|MODEL_PS2|MODEL_HAS_IDE, 1, 64, 1, at_pb410a_init, NULL},
{"[Socket 4] Intel Premiere/PCI", ROM_REVENGE, "revenge", { {"Intel", cpus_Pentium5V}, {"", NULL}, {"", NULL}}, MODEL_GFX_NONE|MODEL_AT|MODEL_PCI|MODEL_PS2|MODEL_HAS_IDE, 1, 128, 1, at_batman_init, NULL},
@ -788,7 +788,7 @@ void at_mvp3_init()
void model_init()
{
pclog("Initting as %s\n", model_getname());
AMSTRAD = AT = PCI = TANDY = 0;
AMSTRAD = AT = PCI = TANDY = MCA = 0;
ide_set_bus_master(NULL, NULL, NULL, NULL);
models[model].init();