From aa77a484c0254c4a0a13545c80f8605defa23a06 Mon Sep 17 00:00:00 2001
From: BurnedPinguin <placeholder@hotmail.com>
Date: Fri, 19 Jan 2024 20:35:50 +0100
Subject: [PATCH] Add AMI Atlas PCI-II.

---
 src/include/86box/machine.h   |  1 +
 src/machine/m_at_socket7_3v.c | 29 +++++++++++++++++++++++++
 src/machine/machine_table.c   | 40 +++++++++++++++++++++++++++++++++++
 3 files changed, 70 insertions(+)

diff --git a/src/include/86box/machine.h b/src/include/86box/machine.h
index fc51ba629..3bb697888 100644
--- a/src/include/86box/machine.h
+++ b/src/include/86box/machine.h
@@ -665,6 +665,7 @@ extern int machine_at_gw2kte_init(const machine_t *);
 
 extern int machine_at_ap5s_init(const machine_t *);
 extern int machine_at_ms5124_init(const machine_t *);
+extern int machine_at_amis727_init(const machine_t *);
 extern int machine_at_vectra54_init(const machine_t *);
 
 /* m_at_socket7.c */
diff --git a/src/machine/m_at_socket7_3v.c b/src/machine/m_at_socket7_3v.c
index 0e420aa3b..9410b656d 100644
--- a/src/machine/m_at_socket7_3v.c
+++ b/src/machine/m_at_socket7_3v.c
@@ -797,6 +797,35 @@ machine_at_ms5124_init(const machine_t *model)
     return ret;
 }
 
+int
+machine_at_amis727_init(const machine_t *model)
+{
+    int ret;
+
+    ret = bios_load_linear("roms/machines/amis727/S727p.rom",
+                           0x000e0000, 131072, 0);
+
+    if (bios_only || !ret)
+        return ret;
+
+    machine_at_common_init_ex(model, 2);
+
+    pci_init(PCI_CONFIG_TYPE_1 | FLAG_TRC_CONTROLS_CPURST);
+    pci_register_slot(0x00, PCI_CARD_NORTHBRIDGE, 0, 0, 0, 0);
+    pci_register_slot(0x01, PCI_CARD_SOUTHBRIDGE, 0xFE, 0xFF, 0, 0);
+    pci_register_slot(0x0A, PCI_CARD_NORMAL,      1, 2, 3, 4);
+    pci_register_slot(0x0B, PCI_CARD_NORMAL,      2, 3, 4, 1);
+    pci_register_slot(0x0C, PCI_CARD_NORMAL,      3, 4, 1, 2);
+    pci_register_slot(0x0D, PCI_CARD_NORMAL,      4, 1, 2, 3);
+
+    device_add(&sis_5511_device);
+    device_add(&keyboard_ps2_intel_ami_pci_device);
+    device_add(&fdc37c665_device);
+    device_add(&intel_flash_bxt_device);
+
+    return ret;
+}
+
 int
 machine_at_vectra54_init(const machine_t *model)
 {
diff --git a/src/machine/machine_table.c b/src/machine/machine_table.c
index 38e498f6e..dd737593a 100644
--- a/src/machine/machine_table.c
+++ b/src/machine/machine_table.c
@@ -10608,6 +10608,46 @@ const machine_t machines[] = {
         .snd_device = NULL,
         .net_device = NULL
     },
+    /* Has Megakey 'R' KBC */
+    {
+        .name = "[SiS 5511] AMI Atlas PCI-II",
+        .internal_name = "AMIS727",
+        .type = MACHINE_TYPE_SOCKET7_3V,
+        .chipset = MACHINE_CHIPSET_SIS_5511,
+        .init = machine_at_amis727_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 = 3380,
+            .max_voltage = 3520,
+            .min_multi = 1.5,
+            .max_multi = 3.0
+        },
+        .bus_flags = MACHINE_PS2_PCI,
+        .flags = MACHINE_IDE_DUAL | MACHINE_APM,
+        .ram = {
+            .min = 8192,
+            .max = 524288,
+            .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
+    },
 
     /* Socket 7 (Dual Voltage) machines */
     /* 430HX */