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https://github.com/andwati/mos-6502.git
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andwati
0dcd2ed687
- Added `state.c` to handle saving and loading the state of the CPU and Bus. - Implemented CRC32 checksum for data integrity verification during state operations. - Enhanced `README.md` in tests/roms to document new test commands for decimal, interrupt, Apple I, and nestest. - Created new test files: `run_apple1.c`, `run_decimal.c`, `run_interrupt.c`, `run_nestest.c`, and `run_vectors.c` to validate the new features. - Updated `run_tests.c` to include tests for state saving/loading and other functionalities. - Introduced `test_vectors.py` to facilitate downloading and running JSON test vectors for opcode verification.
34 lines
983 B
C
34 lines
983 B
C
#ifndef BUS_H
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#define BUS_H
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#include <stdbool.h>
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#include <stdint.h>
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#include "memory.h"
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typedef struct Bus6502 Bus6502;
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typedef bool (*bus_read_hook_t)(void *userdata,uint16_t addr,uint8_t *value);
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typedef bool (*bus_write_hook_t)(void *userdata,uint16_t addr,uint8_t value);
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struct Bus6502 {
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Memory memory;
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uint8_t keyboard;
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uint32_t rng_state;
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bool easy6502_io;
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bool framebuffer_dirty;
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bus_read_hook_t read_hook;
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bus_write_hook_t write_hook;
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void *hook_userdata;
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};
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void bus_init(Bus6502 *bus);
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uint8_t bus_read(Bus6502 *bus, uint16_t addr);
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void bus_write(Bus6502 *bus, uint16_t addr, uint8_t value);
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uint16_t bus_read16(Bus6502 *bus, uint16_t addr);
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void bus_write16(Bus6502 *bus, uint16_t addr, uint16_t value);
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void bus_set_keyboard(Bus6502 *bus, uint8_t key);
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void bus_seed_rng(Bus6502 *bus, uint32_t seed);
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void bus_set_hooks(Bus6502 *bus,bus_read_hook_t read_hook,
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bus_write_hook_t write_hook,void *userdata);
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#endif
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