From 4621e6b8a49902071dc34d2195a230384f1fc4a8 Mon Sep 17 00:00:00 2001
From: BurnedPinguin <placeholder@hotmail.com>
Date: Fri, 19 Jan 2024 12:34:56 +0100
Subject: [PATCH] Add Northgate Computer Systems ELEGANCE PENTIUM 90

---
 src/include/86box/machine.h |  1 +
 src/machine/m_at_socket5.c  | 30 ++++++++++++++++++++++++++++
 src/machine/machine_table.c | 39 +++++++++++++++++++++++++++++++++++++
 3 files changed, 70 insertions(+)

diff --git a/src/include/86box/machine.h b/src/include/86box/machine.h
index f730bbdd7..358a7af07 100644
--- a/src/include/86box/machine.h
+++ b/src/include/86box/machine.h
@@ -632,6 +632,7 @@ extern int machine_at_hawk_init(const machine_t *);
 extern int machine_at_pat54pv_init(const machine_t *);
 
 extern int machine_at_hot543_init(const machine_t *);
+extern int machine_at_ncselp90_init(const machine_t *);
 
 extern int machine_at_p54sp4_init(const machine_t *);
 extern int machine_at_sq588_init(const machine_t *);
diff --git a/src/machine/m_at_socket5.c b/src/machine/m_at_socket5.c
index 0b67976af..f8cda984d 100644
--- a/src/machine/m_at_socket5.c
+++ b/src/machine/m_at_socket5.c
@@ -349,6 +349,36 @@ machine_at_hot543_init(const machine_t *model)
     return ret;
 }
 
+int
+machine_at_ncselp90_init(const machine_t *model)
+{
+    int ret;
+
+    ret = bios_load_linear("roms/machines/ncselp90/elegancep90.bin",
+                           0x000e0000, 131072, 0);
+
+    if (bios_only || !ret)
+        return ret;
+
+    machine_at_common_init(model);
+
+    pci_init(PCI_CONFIG_TYPE_1);
+    pci_register_slot(0x10, PCI_CARD_NORTHBRIDGE, 0, 0, 0, 0);
+    pci_register_slot(0x11, PCI_CARD_NORMAL,      1, 2, 3, 4);
+    pci_register_slot(0x12, PCI_CARD_NORMAL,      2, 3, 4, 1);
+    pci_register_slot(0x13, PCI_CARD_NORMAL,      3, 4, 1, 2);
+
+    device_add(&opti5x7_pci_device);
+    device_add(&opti822_device);
+    device_add(&sst_flash_29ee010_device);
+    device_add(&keyboard_ps2_ami_pci_device);
+    device_add(&ide_opti611_vlb_device);
+    device_add(&fdc37c665_ide_sec_device);
+    device_add(&ide_vlb_2ch_device);
+
+    return ret;
+}
+
 int
 machine_at_p54sp4_init(const machine_t *model)
 {
diff --git a/src/machine/machine_table.c b/src/machine/machine_table.c
index 099ef62ea..f2ac6e818 100644
--- a/src/machine/machine_table.c
+++ b/src/machine/machine_table.c
@@ -9501,6 +9501,45 @@ const machine_t machines[] = {
         .snd_device = NULL,
         .net_device = NULL
     },
+    {
+        .name = "[OPTi 597] Northgate Computer Systems Elegance Pentium 90",
+        .internal_name = "ncselp90",
+        .type = MACHINE_TYPE_SOCKET5,
+        .chipset = MACHINE_CHIPSET_OPTI_547_597,
+        .init = machine_at_ncselp90_init,
+        .p1_handler = NULL,
+        .gpio_handler = NULL,
+        .available_flag = MACHINE_AVAILABLE,
+        .gpio_acpi_handler = NULL,
+        .cpu = {
+            .package = CPU_PKG_SOCKET5_7,
+            .block = CPU_BLOCK_NONE,
+            .min_bus = 50000000,
+            .max_bus = 66666667,
+            .min_voltage = 3520,
+            .max_voltage = 3520,
+            .min_multi = 1.5,
+            .max_multi = 2.0
+        },
+        .bus_flags = MACHINE_PCIV | MACHINE_PS2,
+        .flags = MACHINE_APM | MACHINE_IDE_DUAL | MACHINE_SUPER_IO,
+        .ram = {
+            .min = 8192,
+            .max = 131072,
+            .step = 8192
+        },
+        .nvrmask = 127,
+        .kbc_device = NULL,
+        .kbc_p1 = 0xff,
+        .gpio = 0xffffffff,
+        .gpio_acpi = 0xffffffff,
+        .device = NULL,
+        .fdc_device = NULL,
+        .sio_device = NULL,
+        .vid_device = NULL,
+        .snd_device = NULL,
+        .net_device = NULL
+    },
 
     /* SiS 85C50x */
     /* This has an AMIKey-2, which is an updated version of type 'H'. */