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Diffstat (limited to 'src/devices/machine/mediagx_cs5530_video.cpp')
-rw-r--r--src/devices/machine/mediagx_cs5530_video.cpp55
1 files changed, 55 insertions, 0 deletions
diff --git a/src/devices/machine/mediagx_cs5530_video.cpp b/src/devices/machine/mediagx_cs5530_video.cpp
new file mode 100644
index 00000000000..5e57d18f9ab
--- /dev/null
+++ b/src/devices/machine/mediagx_cs5530_video.cpp
@@ -0,0 +1,55 @@
+// license: BSD-3-Clause
+// copyright-holders: Angelo Salese
+/**************************************************************************************************
+
+[Cyrix/National Semiconductor/AMD] [MediaGX/Geode] [Cx/CS]5530 VIDEO implementation (XpressGRAPHICS?)
+
+TODO:
+- extensions for host display section (GX_BASE+8300h);
+
+**************************************************************************************************/
+
+#include "emu.h"
+#include "mediagx_cs5530_video.h"
+
+#define VERBOSE (LOG_GENERAL)
+//#define LOG_OUTPUT_FUNC osd_printf_info
+
+#include "logmacro.h"
+
+DEFINE_DEVICE_TYPE(MEDIAGX_CS5530_VIDEO, mediagx_cs5530_video_device, "mediagx_cs5530_video", "MediaGX CS5530 Video Controller")
+
+mediagx_cs5530_video_device::mediagx_cs5530_video_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
+ : pci_device(mconfig, MEDIAGX_CS5530_VIDEO, tag, owner, clock)
+{
+ set_ids(0x10780104, 0x00, 0x030000, 0x00);
+}
+
+void mediagx_cs5530_video_device::config_map(address_map &map)
+{
+ pci_device::config_map(map);
+// map(0x14, 0xff).unmaprw(); // <reserved>
+}
+
+void mediagx_cs5530_video_device::io_map(address_map &map)
+{
+
+}
+
+void mediagx_cs5530_video_device::device_start()
+{
+ pci_device::device_start();
+
+ add_map(4*1024, M_MEM, FUNC(mediagx_cs5530_video_device::io_map));
+
+ // no INT pin
+}
+
+void mediagx_cs5530_video_device::device_reset()
+{
+ pci_device::device_reset();
+
+ command = 0x0000;
+ command_mask = 0x0003;
+ status = 0x0280;
+}