Hook up Bidirectional LPT, EPP, and ECP to all Super I/O chips (missing is vendor-specific Configuration Register B behavior but that's next on my list), fixed Super I/O chip mistakes for a number of machines, split 286/386SX/M6117D machines into three separate files and reordered them as well.

src/machine/m_at_m6117.c

@@ -0,0 +1,88 @@
+/*
+ * 86Box    A hypervisor and IBM PC system emulator that specializes in
+ *          running old operating systems and software designed for IBM
+ *          PC systems and compatibles from 1981 through fairly recent
+ *          system designs based on the PCI bus.
+ *
+ *          This file is part of the 86Box distribution.
+ *
+ *          Implementation of 386SX machines.
+ *
+ * Authors: Miran Grca, <mgrca8@gmail.com>
+ *          EngiNerd <webmaster.crrc@yahoo.it>
+ *
+ *          Copyright 2016-2025 Miran Grca.
+ *          Copyright 2020-2025 EngiNerd.
+ */
+#include <stdarg.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+#include <wchar.h>
+#define HAVE_STDARG_H
+#include <86box/86box.h>
+#include "cpu.h"
+#include <86box/timer.h>
+#include <86box/io.h>
+#include <86box/device.h>
+#include <86box/chipset.h>
+#include <86box/keyboard.h>
+#include <86box/mem.h>
+#include <86box/rom.h>
+#include <86box/fdd.h>
+#include <86box/fdc.h>
+#include <86box/fdc_ext.h>
+#include <86box/hdc.h>
+#include <86box/nvr.h>
+#include <86box/port_6x.h>
+#define USE_SIO_DETECT
+#include <86box/sio.h>
+#include <86box/serial.h>
+#include <86box/video.h>
+#include <86box/vid_cga.h>
+#include <86box/flash.h>
+#include <86box/machine.h>
+
+/* ALi M6117D */
+int
+machine_at_pja511m_init(const machine_t *model)
+{
+    int ret;
+
+    ret = bios_load_linear("roms/machines/pja511m/2006915102435734.rom",
+                           0x000e0000, 131072, 0);
+
+    if (bios_only || !ret)
+        return ret;
+
+    machine_at_common_init(model);
+
+    device_add_inst_params(&fdc37c669_device, 1, (void *) FDC37C6XX_IDE_PRI);
+    device_add_inst_params(&fdc37c669_device, 2, (void *) 0);
+    device_add(&kbc_ps2_ami_pci_device);
+    device_add(&ali6117d_device);
+    device_add(&sst_flash_29ee010_device);
+
+    return ret;
+}
+
+int
+machine_at_prox1332_init(const machine_t *model)
+{
+    int ret;
+
+    ret = bios_load_linear("roms/machines/prox1332/D30B3AC1.BIN",
+                           0x000e0000, 131072, 0);
+
+    if (bios_only || !ret)
+        return ret;
+
+    machine_at_common_init(model);
+
+    device_add_params(&fdc37c669_device, (void *) FDC37C6XX_370);
+    device_add(&kbc_ps2_ami_pci_device);
+    device_add(&ali6117d_device);
+    device_add(&sst_flash_29ee010_device);
+
+    return ret;
+}