Finished the great internal machine reorganization and added the FIC PO-6000.

2026-02-25 21:43:16 -07:00 · 2025-08-13 23:43:51 +02:00
parent 6646747528
commit d2c8dab342
46 changed files with 8739 additions and 7957 deletions
--- a/src/device/zenith_scratchpad.c
+++ b/src/device/zenith_scratchpad.c
@@ -0,0 +1,110 @@
+/*
+ * 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.
+ *
+ *          Emulation of various Zenith PC compatible machines.
+ *          Currently only the Zenith Data Systems Supersport is emulated.
+ *
+ *
+ *
+ * Authors: Tux,
+ *          Miran Grca, <mgrca8@gmail.com>
+ *          TheCollector1995, <mariogplayer@gmail.com>
+ *          EngiNerd <webmaster.crrc@yahoo.it>
+ *
+ *          Copyright 2016-2019 Tux.
+ *          Copyright 2016-2019 Miran Grca.
+ *          Copyright 2020 EngiNerd.
+ */
+#include <stdarg.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <wchar.h>
+#include <86box/86box.h>
+#include "cpu.h"
+#include <86box/timer.h>
+#include <86box/dma.h>
+#include <86box/nmi.h>
+#include <86box/pic.h>
+#include <86box/pit.h>
+#include <86box/mem.h>
+#include <86box/rom.h>
+#include <86box/device.h>
+#include <86box/fdd.h>
+#include <86box/fdc.h>
+#include <86box/fdc_ext.h>
+#include <86box/gameport.h>
+#include <86box/keyboard.h>
+#include <86box/lpt.h>
+#include <86box/serial.h>
+#include <86box/machine.h>
+#include <86box/io.h>
+#include <86box/video.h>
+#include <86box/plat_unused.h>
+#include <86box/chipset.h>
+
+typedef struct {
+    mem_mapping_t scratchpad_mapping;
+    uint8_t      *scratchpad_ram;
+} zenith_t;
+
+static uint8_t
+zenith_scratchpad_read(uint32_t addr, void *priv)
+{
+    const zenith_t *dev = (zenith_t *) priv;
+
+    return dev->scratchpad_ram[addr & 0x3fff];
+}
+
+static void
+zenith_scratchpad_write(uint32_t addr, uint8_t val, void *priv)
+{
+    zenith_t *dev                      = (zenith_t *) priv;
+    dev->scratchpad_ram[addr & 0x3fff] = val;
+}
+
+static void *
+zenith_scratchpad_init(UNUSED(const device_t *info))
+{
+    zenith_t *dev;
+
+    dev = (zenith_t *) calloc(1, sizeof(zenith_t));
+
+    dev->scratchpad_ram = malloc(0x4000);
+
+    mem_mapping_add(&dev->scratchpad_mapping, 0xf0000, 0x4000,
+                    zenith_scratchpad_read, NULL, NULL,
+                    zenith_scratchpad_write, NULL, NULL,
+                    dev->scratchpad_ram, MEM_MAPPING_EXTERNAL, dev);
+
+    return dev;
+}
+
+static void
+zenith_scratchpad_close(void *priv)
+{
+    zenith_t *dev = (zenith_t *) priv;
+
+    free(dev->scratchpad_ram);
+    free(dev);
+}
+
+const device_t zenith_scratchpad_device = {
+    .name          = "Zenith scratchpad RAM",
+    .internal_name = "zenith_scratchpad",
+    .flags         = 0,
+    .local         = 0,
+    .init          = zenith_scratchpad_init,
+    .close         = zenith_scratchpad_close,
+    .reset         = NULL,
+    .available     = NULL,
+    .speed_changed = NULL,
+    .force_redraw  = NULL,
+    .config        = NULL
+};