From 9521237b0b8718a31f47f52448108d21776114d4 Mon Sep 17 00:00:00 2001
From: SarahW <SarahW@localhost>
Date: Sun, 16 Jul 2017 16:17:59 +0100
Subject: [PATCH] Added Samsung SPC-4200P emulation. IDE Drive Diagnostics
 command now doesn't complete immediately (required by SPC-4200P BIOS). Patch
 from Greatpsycho.

---
 src/ibm.h   | 1 +
 src/ide.c   | 6 ++++++
 src/mem.c   | 7 +++++++
 src/model.c | 1 +
 src/nvr.c   | 2 ++
 5 files changed, 17 insertions(+)

diff --git a/src/ibm.h b/src/ibm.h
index 81e5ae4..df8dcfa 100644
--- a/src/ibm.h
+++ b/src/ibm.h
@@ -404,6 +404,7 @@ enum
         ROM_CMDPC30,
         ROM_AMI286,
         ROM_AWARD286,
+        ROM_SPC4200P,
         ROM_DELL200,
         ROM_MISC286,
         ROM_IBMAT386,
diff --git a/src/ide.c b/src/ide.c
index 6d5d4e3..085097b 100644
--- a/src/ide.c
+++ b/src/ide.c
@@ -1045,6 +1045,12 @@ void writeide(int ide_board, uint16_t addr, uint8_t val)
                         return;
 
                 case WIN_DRIVE_DIAGNOSTICS: /* Execute Drive Diagnostics */
+                        ide->atastat = BUSY_STAT;
+                        timer_process();
+                        idecallback[ide_board]=200*IDE_TIME;
+                        timer_update_outstanding();
+                        return;
+
                 case WIN_PIDENTIFY: /* Identify Packet Device */
                 case WIN_SET_MULTIPLE_MODE: /*Set Multiple Mode*/
 //                output=1;
diff --git a/src/mem.c b/src/mem.c
index a9eb585..031d1f8 100644
--- a/src/mem.c
+++ b/src/mem.c
@@ -385,6 +385,13 @@ int loadbios()
                 fclose(f);
                 return 1;
 
+                case ROM_SPC4200P:
+                f=romfopen("spc4200p/u8.01","rb");
+                if (!f) break;
+                fread(rom,65536,1,f);
+                fclose(f);
+                return 1;
+
                 case ROM_EUROPC:
 //                return 0;
                 f=romfopen("europc/50145","rb");
diff --git a/src/model.c b/src/model.c
index 1a0d512..ca64a94 100644
--- a/src/model.c
+++ b/src/model.c
@@ -123,6 +123,7 @@ MODEL models[] =
         {"[286] IBM PS/1 model 2011",     ROM_IBMPS1_2011,      "ibmps1es",       { {"",      cpus_ps1_m2011},   {"",    NULL},         {"",      NULL}},        1, 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}},        1, 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}},        1, MODEL_AT|MODEL_PS2|MODEL_MCA,       1,  16,   1,   ps2_model_50_init, NULL},
+        {"[286] Samsung SPC-4200P",       ROM_SPC4200P,         "spc4200p",       { {"",      cpus_286},         {"",    NULL},         {"",      NULL}},        0, MODEL_AT|MODEL_PS2|MODEL_HAS_IDE,   512,2048, 128,      at_scat_init, NULL},
 
         {"[386SX] Acer 386SX25/N",        ROM_ACER386,          "acer386",        { {"Intel", cpus_acer},        {"",    NULL},         {"",      NULL}},        1, MODEL_AT|MODEL_PS2|MODEL_HAS_IDE,   1,  16,   1,   at_acer386sx_init, NULL},
         {"[386SX] AMI 386SX clone",       ROM_AMI386SX,         "ami386",         { {"Intel", cpus_i386SX},      {"AMD", cpus_Am386SX}, {"Cyrix", cpus_486SLC}}, 0, MODEL_AT|MODEL_HAS_IDE,              512,16384,128, at_headland_init, NULL},
diff --git a/src/nvr.c b/src/nvr.c
index 33df4b6..9258eea 100644
--- a/src/nvr.c
+++ b/src/nvr.c
@@ -227,6 +227,7 @@ void loadnvr()
                 case ROM_CMDPC30:     f = nvrfopen("cmdpc30.nvr",     "rb"); nvrmask = 127; break;
                 case ROM_AMI286:      f = nvrfopen("ami286.nvr",      "rb"); nvrmask = 127; break;
                 case ROM_AWARD286:    f = nvrfopen("award286.nvr",    "rb"); nvrmask = 127; break;
+                case ROM_SPC4200P:    f = nvrfopen("spc4200p.nvr",    "rb"); nvrmask = 127; break;
                 case ROM_DELL200:     f = nvrfopen("dell200.nvr",     "rb"); nvrmask = 127; break;
                 case ROM_IBMAT386:    f = nvrfopen("at386.nvr",       "rb"); nvrmask = 127; break;
                 case ROM_DESKPRO_386: f = nvrfopen("deskpro386.nvr",  "rb"); break;
@@ -290,6 +291,7 @@ void savenvr()
                 case ROM_CMDPC30:     f = nvrfopen("cmdpc30.nvr",     "wb"); break;
                 case ROM_AMI286:      f = nvrfopen("ami286.nvr",      "wb"); break;
                 case ROM_AWARD286:    f = nvrfopen("award286.nvr",    "wb"); break;
+                case ROM_SPC4200P:    f = nvrfopen("spc4200p.nvr",    "wb"); break;
                 case ROM_DELL200:     f = nvrfopen("dell200.nvr",     "wb"); break;
                 case ROM_IBMAT386:    f = nvrfopen("at386.nvr",       "wb"); break;
                 case ROM_DESKPRO_386: f = nvrfopen("deskpro386.nvr",  "wb"); break;