Rewritten 808x CPU emulation core based on reenigne's XTCE, VisiOn, SnatchIt, and 8088 MPH now work correctly;

Fixed PC speaker sound volume in PIT mode 0; A few CPU emulation clean-ups; Hard disk controller changing redone in a less messy way; Re-added the long-missing key send delay handling to the XT keyboard handler; Fixed a bug that was causing SLiRP not to work when compiled with MingW/GCC 7.3.0-2 or newer; Some serial mouse and port fixes; A lot of changes to printer emulation, mostly based on DOSBox-X; Printer PNG writer now uses statically linked libpng; Added support for the HxC MFM floppy image format and upped 86F format version to 2.12; Ported various things from PCem and some from VARCem; Added the S3 86c801/805 emulation (patch from TheCollector1995); Fixed and renamed the EGA monitor options; Better synchronized the 808x to the PIT and the CGA; Fixed the CGA wait state calculation; Cleaned up some things in mem.c; Fixed some things in the floppy emulation to make VisiOn get the correct errors from the copy protection disk; Fixed several renderer-related bugs, including the SDL2 renderer's failure to take screenshots; The Jenkins builds are now compiled with MingW/GCC 7.4.0-1 and include all the required DLL's.
2019-02-06 03:34:39 +01:00
parent c91b1f2b8e
commit 46d0ed2baa
104 changed files with 7749 additions and 6608 deletions
--- a/src/machine/m_xt_zenith.c
+++ b/src/machine/m_xt_zenith.c
@@ -0,0 +1,113 @@
+/*
+ * 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.
+ *
+ * Version:	@(#)m_xt_compaq.c	1.0.0	2019/01/13
+ *
+ * Authors:	Sarah Walker, <http://pcem-emulator.co.uk/>
+ *		Miran Grca, <mgrca8@gmail.com>
+ *		TheCollector1995, <mariogplayer@gmail.com>
+ *
+ *		Copyright 2008-2018 Sarah Walker.
+ *		Copyright 2016-2018 Miran Grca.
+ */
+#include <stdarg.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <wchar.h>
+#include "../86box.h"
+#include "../cpu/cpu.h"
+#include "../nmi.h"
+#include "../pit.h"
+#include "../mem.h"
+#include "../rom.h"
+#include "../device.h"
+#include "../floppy/fdd.h"
+#include "../floppy/fdc.h"
+#include "../game/gameport.h"
+#include "../keyboard.h"
+#include "../lpt.h"
+#include "machine.h"
+
+typedef struct {
+    mem_mapping_t scratchpad_mapping;
+    uint8_t *scratchpad_ram;
+} zenith_t;
+
+static uint8_t zenith_scratchpad_read(uint32_t addr, void *p)
+{
+	zenith_t *dev = (zenith_t *)p;
+        return dev->scratchpad_ram[addr & 0x3fff];
+}
+static void zenith_scratchpad_write(uint32_t addr, uint8_t val, void *p)
+{
+	zenith_t *dev = (zenith_t *)p;
+        dev->scratchpad_ram[addr & 0x3fff] = val;
+}
+
+static void *
+zenith_scratchpad_init(const device_t *info)
+{
+    zenith_t *dev;
+
+    dev = (zenith_t *)malloc(sizeof(zenith_t));
+    memset(dev, 0x00, sizeof(zenith_t));	
+	
+    dev->scratchpad_ram = malloc(0x4000);
+    
+    mem_mapping_disable(&bios_mapping[4]);
+    mem_mapping_disable(&bios_mapping[5]);
+
+    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 *p)
+{
+        zenith_t *dev = (zenith_t *)p;
+
+	free(dev->scratchpad_ram);
+        free(dev);
+}
+
+
+static const device_t zenith_scratchpad_device = {
+    "Zenith scratchpad RAM",
+    0, 0,
+    zenith_scratchpad_init, zenith_scratchpad_close, NULL,
+    NULL,
+    NULL,
+    NULL
+};
+
+void
+machine_xt_zenith_init(const machine_t *model)
+{		
+    machine_common_init(model);
+
+    lpt2_remove(); /* only one parallel port */    
+    
+    device_add(&zenith_scratchpad_device);
+    
+    pit_set_out_func(&pit, 1, pit_refresh_timer_xt);
+
+    device_add(&keyboard_xt_device);
+    device_add(&fdc_xt_device);
+    nmi_init();
+    if (joystick_type != 7)
+	device_add(&gameport_device);
+}