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-rw-r--r--src/mame/includes/nforcepc.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/src/mame/includes/nforcepc.h b/src/mame/includes/nforcepc.h
index 68a9c654a31..cdc2802ac7a 100644
--- a/src/mame/includes/nforcepc.h
+++ b/src/mame/includes/nforcepc.h
@@ -63,6 +63,26 @@ private:
DECLARE_DEVICE_TYPE(SMBUS_LOGGER, smbus_logger_device)
+// Simple smbus rom used as a placeholder for the serial presence detect chip in a ddr dimm
+
+class smbus_rom_device : public device_t, public smbus_interface
+{
+public:
+ smbus_rom_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, const uint8_t *data, int size);
+ smbus_rom_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+ virtual int execute_command(int command, int rw, int data) override;
+
+protected:
+ virtual void device_start() override;
+ virtual void device_reset() override;
+
+private:
+ const uint8_t *buffer;
+ int buffer_size;
+};
+
+DECLARE_DEVICE_TYPE(SMBUS_ROM, smbus_rom_device)
+
// Asus AS99127F chip
// It answerst to three smbus addresses, by default 0x2d 0x48 0x49