54 lines
2 KiB
C
54 lines
2 KiB
C
/*
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* Copyright 2024 Matt Evans
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation files
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* (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef CPU_CB_H
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#define CPU_CB_H
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#include <inttypes.h>
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#include "machw.h"
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/* Note unsigned int instead of uint32_t, to make types exactly match
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* Musashi ;(
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*/
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unsigned int cpu_read_byte(unsigned int address);
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unsigned int cpu_read_word(unsigned int address);
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unsigned int cpu_read_long(unsigned int address);
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void cpu_write_byte(unsigned int address, unsigned int value);
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void cpu_write_word(unsigned int address, unsigned int value);
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void cpu_write_long(unsigned int address, unsigned int value);
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void cpu_pulse_reset(void);
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void cpu_set_fc(unsigned int fc);
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int cpu_irq_ack(int level);
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void cpu_instr_callback(int pc);
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extern unsigned int (*cpu_read_instr)(unsigned int address);
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/* This is special: an aligned 16b opcode, and will never act on MMIO.
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*/
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static inline unsigned int cpu_read_instr_word(unsigned int address)
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{
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return cpu_read_instr(address);
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}
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#endif
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