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-rw-r--r--src/devices/cpu/unsp/unsp.h113
1 files changed, 113 insertions, 0 deletions
diff --git a/src/devices/cpu/unsp/unsp.h b/src/devices/cpu/unsp/unsp.h
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index 00000000000..8d1ca02dd7e
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+++ b/src/devices/cpu/unsp/unsp.h
@@ -0,0 +1,113 @@
+// license:BSD-3-Clause
+// copyright-holders:Ryan Holtz
+/**************************\
+*
+* SunPlus u'nSP emulator
+*
+* by Harmony
+*
+\**************************/
+
+#pragma once
+
+#ifndef __UNSP_H__
+#define __UNSP_H__
+
+enum
+{
+ UNSP_SP = 1,
+ UNSP_R1,
+ UNSP_R2,
+ UNSP_R3,
+ UNSP_R4,
+ UNSP_BP,
+ UNSP_SR,
+ UNSP_PC,
+
+ UNSP_GPR_COUNT = UNSP_PC,
+
+ UNSP_IRQ,
+ UNSP_FIQ,
+ UNSP_SB
+
+};
+
+enum
+{
+ UNSP_IRQ0_LINE = 0,
+ UNSP_IRQ1_LINE,
+ UNSP_IRQ2_LINE,
+ UNSP_IRQ3_LINE,
+ UNSP_IRQ4_LINE,
+ UNSP_IRQ5_LINE,
+ UNSP_IRQ6_LINE,
+ UNSP_IRQ7_LINE,
+ UNSP_FIQ_LINE,
+ UNSP_BRK_LINE,
+
+ UNSP_NUM_LINES
+};
+
+
+class unsp_device : public cpu_device
+{
+public:
+ // construction/destruction
+ unsp_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+protected:
+ // device-level overrides
+ virtual void device_start();
+ virtual void device_reset();
+
+ // device_execute_interface overrides
+ virtual UINT32 execute_min_cycles() const { return 5; }
+ virtual UINT32 execute_max_cycles() const { return 5; }
+ virtual UINT32 execute_input_lines() const { return 0; }
+ virtual void execute_run();
+ virtual void execute_set_input(int inputnum, int state);
+
+ // device_memory_interface overrides
+ virtual const address_space_config *memory_space_config(address_spacenum spacenum = AS_0) const { return (spacenum == AS_PROGRAM) ? &m_program_config : NULL; }
+
+ // device_state_interface overrides
+ virtual void state_import(const device_state_entry &entry);
+ virtual void state_export(const device_state_entry &entry);
+
+ // device_disasm_interface overrides
+ virtual UINT32 disasm_min_opcode_bytes() const { return 2; }
+ virtual UINT32 disasm_max_opcode_bytes() const { return 4; }
+ virtual offs_t disasm_disassemble(char *buffer, offs_t pc, const UINT8 *oprom, const UINT8 *opram, UINT32 options);
+
+private:
+ address_space_config m_program_config;
+
+ UINT16 m_r[16];
+ UINT8 m_irq;
+ UINT8 m_fiq;
+ UINT16 m_curirq;
+ UINT16 m_sirq;
+ UINT8 m_sb;
+ UINT8 m_saved_sb;
+
+ address_space *m_program;
+ int m_icount;
+
+ UINT32 m_debugger_temp;
+
+ void unimplemented_opcode(UINT16 op);
+ inline UINT16 READ16(UINT32 address);
+ inline void WRITE16(UINT32 address, UINT16 data);
+ inline void unsp_update_nz(UINT32 value);
+ inline void unsp_update_nzsc(UINT32 value, UINT16 r0, UINT16 r1);
+ inline void unsp_push(UINT16 value, UINT16 *reg);
+ inline UINT16 unsp_pop(UINT16 *reg);
+
+
+};
+
+
+extern const device_type UNSP;
+
+
+#endif /* __UNSP_H__ */