From 874fb283ab481b8024e7e802f908b7db79b7e168 Mon Sep 17 00:00:00 2001
From: Dimitar Angelov <funkamateur@gmail.com>
Date: Wed, 19 Oct 2022 02:41:35 +0200
Subject: [PATCH] Adding [8088] Pravetz-16 / IMKO-4 mainboard

---
 src/include/86box/machine.h |  1 +
 src/machine/m_xt.c          | 15 +++++++++++++++
 src/machine/machine_table.c | 36 ++++++++++++++++++++++++++++++++++++
 3 files changed, 52 insertions(+)

diff --git a/src/include/86box/machine.h b/src/include/86box/machine.h
index d8ec3b5f2..0ba9e38f3 100644
--- a/src/include/86box/machine.h
+++ b/src/include/86box/machine.h
@@ -784,6 +784,7 @@ extern int machine_xt_sansx16_init(const machine_t *);
 extern int machine_xt_bw230_init(const machine_t *);
 
 extern int machine_xt_iskra3104_init(const machine_t *);
+extern int machine_xt_pravetz16_imko4_init(const machine_t *);
 
 /* m_xt_compaq.c */
 extern int machine_xt_compaq_deskpro_init(const machine_t *);
diff --git a/src/machine/m_xt.c b/src/machine/m_xt.c
index cd9a78df6..17089b9f0 100644
--- a/src/machine/m_xt.c
+++ b/src/machine/m_xt.c
@@ -328,6 +328,21 @@ machine_xt_iskra3104_init(const machine_t *model)
     return ret;
 }
 
+int
+machine_xt_pravetz16_imko4_init(const machine_t *model)
+{
+	int ret;
+    
+    ret = bios_load_linear("roms/machines/pravetz16/BIOS_IMKO4_FE00.bin",
+			   0x000fe000, 8192, 0);
+
+    if (bios_only || !ret)
+	    return ret;
+
+    machine_xt_init_ex(model);
+    return ret;
+}
+
 int
 machine_xt_pc4i_init(const machine_t *model)
 {
diff --git a/src/machine/machine_table.c b/src/machine/machine_table.c
index f3a56fc98..cbfdccab9 100644
--- a/src/machine/machine_table.c
+++ b/src/machine/machine_table.c
@@ -1610,6 +1610,42 @@ const machine_t machines[] = {
         .snd_device = NULL,
         .net_device = NULL
     },
+    {
+        .name = "[8088] Pravetz 16 / IMKO-4",
+        .internal_name = "pravetz16",
+        .type = MACHINE_TYPE_8088,
+        .chipset = MACHINE_CHIPSET_DISCRETE,
+        .init = machine_xt_pravetz16_imko4_init,
+        .pad = 0,
+        .pad0 = 0,
+        .pad1 = MACHINE_AVAILABLE,
+        .pad2 = 0,
+        .cpu = {
+            .package = CPU_PKG_8088,
+            .block = CPU_BLOCK_NONE,
+            .min_bus = 0,
+            .max_bus = 0,
+            .min_voltage = 0,
+            .max_voltage = 0,
+            .min_multi = 0,
+            .max_multi = 0
+        },
+        .bus_flags = MACHINE_PC,
+        .flags = MACHINE_FLAGS_NONE,
+        .ram = {
+            .min = 64,
+            .max = 640,
+            .step = 64
+        },
+        .nvrmask = 0,
+        .kbc = KBC_IBM_PC_XT,
+        .kbc_p1 = 0xff00,
+        .gpio = 0xffffffff,
+        .device = NULL,
+        .vid_device = NULL,
+        .snd_device = NULL,
+        .net_device = NULL
+    },
 
     /* 8086 Machines */
     {