From 5b0267e4d3738ece390f664cc0cac9ebe31939fe Mon Sep 17 00:00:00 2001
From: MaxwellS04 <tongpauz@gmail.com>
Date: Tue, 21 Oct 2025 16:28:37 +0700
Subject: [PATCH] Added the 1999 v4.51PG BIOS to P5VX-B

---
 src/include/86box/machine.h |  3 ++
 src/machine/m_at_socket7.c  | 65 ++++++++++++++++++++++++++++++++++---
 src/machine/machine_table.c |  2 +-
 3 files changed, 64 insertions(+), 6 deletions(-)

diff --git a/src/include/86box/machine.h b/src/include/86box/machine.h
index 061c6473f..8cc928f91 100644
--- a/src/include/86box/machine.h
+++ b/src/include/86box/machine.h
@@ -1062,6 +1062,9 @@ extern int             machine_at_8500tvxa_init(const machine_t *);
 extern int             machine_at_presario2240_init(const machine_t *);
 extern int             machine_at_presario4500_init(const machine_t *);
 extern int             machine_at_dellhannibalp_init(const machine_t *);
+#ifdef EMU_DEVICE_H
+extern const device_t  p5vxb_device;
+#endif
 extern int             machine_at_p5vxb_init(const machine_t *);
 extern int             machine_at_p55va_init(const machine_t *);
 extern int             machine_at_gw2kte_init(const machine_t *);
diff --git a/src/machine/m_at_socket7.c b/src/machine/m_at_socket7.c
index 7916db2d4..15e0316f2 100644
--- a/src/machine/m_at_socket7.c
+++ b/src/machine/m_at_socket7.c
@@ -813,17 +813,72 @@ machine_at_dellhannibalp_init(const machine_t *model)
     return ret;
 }
 
+static const device_config_t p5vxb_config[] = {
+    // clang-format off
+    {
+        .name           = "bios",
+        .description    = "BIOS Version",
+        .type           = CONFIG_BIOS,
+        .default_string = "p5vxb",
+        .default_int    = 0,
+        .file_filter    = NULL,
+        .spinner        = { 0 },
+        .selection      = { { 0 } },
+        .bios           = {
+            {
+                .name          = "Award Modular BIOS v4.50PG - Revision 1.0",
+                .internal_name = "p5vxb",
+                .bios_type     = BIOS_NORMAL,
+                .files_no      = 1,
+                .local         = 0,
+                .size          = 131072,
+                .files         = { "roms/machines/p5vxb/P5VXB10.BIN", "" }
+            },
+            {
+                .name          = "Award Modular BIOS v4.51PG - Revision 1.5c",
+                .internal_name = "p5vxb_451pg",
+                .bios_type     = BIOS_NORMAL,
+                .files_no      = 1,
+                .local         = 0,
+                .size          = 131072,
+                .files         = { "roms/machines/p5vxb/P5VXB15C.BIN", "" }
+            },
+            { .files_no = 0 }
+        }
+    },
+    { .name = "", .description = "", .type = CONFIG_END }
+    // clang-format on
+};
+
+const device_t p5vxb_device = {
+    .name          = "ECS P5VX-B",
+    .internal_name = "p5vxb_device",
+    .flags         = 0,
+    .local         = 0,
+    .init          = NULL,
+    .close         = NULL,
+    .reset         = NULL,
+    .available     = NULL,
+    .speed_changed = NULL,
+    .force_redraw  = NULL,
+    .config        = p5vxb_config
+};
+
 int
 machine_at_p5vxb_init(const machine_t *model)
 {
-    int ret;
+    int         ret = 0;
+    const char *fn;
 
-    ret = bios_load_linear("roms/machines/p5vxb/P5VXB10.BIN",
-                           0x000e0000, 131072, 0);
-
-    if (bios_only || !ret)
+    /* No ROMs available */
+    if (!device_available(model->device))
         return ret;
 
+    device_context(model->device);
+    fn  = device_get_bios_file(machine_get_device(machine), device_get_config_bios("bios"), 0);
+    ret = bios_load_linear(fn, 0x000e0000, 131072, 0);
+    device_context_restore();
+
     machine_at_common_init(model);
 
     pci_init(PCI_CONFIG_TYPE_1);
diff --git a/src/machine/machine_table.c b/src/machine/machine_table.c
index 47fb21303..244bf83df 100644
--- a/src/machine/machine_table.c
+++ b/src/machine/machine_table.c
@@ -15218,7 +15218,7 @@ const machine_t machines[] = {
         .kbc_p1                   = 0x00000cf0,
         .gpio                     = 0xffffffff,
         .gpio_acpi                = 0xffffffff,
-        .device                   = NULL,
+        .device                   = &p5vxb_device,
         .kbd_device               = NULL,
         .fdc_device               = NULL,
         .sio_device               = NULL,