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78 lines
2.1 KiB
78 lines
2.1 KiB
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#pragma once |
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#include <stdint.h> |
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#include <stdlib.h> |
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void hexdump(const void *d, size_t datalen); |
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#define DISPLAY_WIDTH_BYTES 8 |
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#define DISPLAY_WIDTH_BITS 64 |
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#define DISPLAY_HEIGHT_BYTES 4 |
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#define DISPLAY_HEIGHT_BITS 32 |
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struct display { |
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uint8_t *buffer; |
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uint8_t width; |
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uint8_t height; |
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int buffser_size; |
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}; |
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struct emu_value { |
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uint8_t pad[0x27]; |
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uint16_t program_counter; |
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uint16_t pointer_register; |
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uint8_t registers[16]; |
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uint8_t extended_display_mode; |
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uint8_t delay_timer; |
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uint8_t sound_timer; |
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uint8_t font[80]; |
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uint16_t stack[160]; |
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uint8_t stack_top; |
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uint8_t unused; |
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}; |
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typedef union { |
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uint8_t all_memory[0x1000]; |
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struct { |
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union { |
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struct emu_value values; |
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uint8_t reserved_memory[0x200]; |
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}; |
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uint8_t main_memory[0xE00]; |
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}; |
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} chip_memory; |
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typedef struct { |
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chip_memory memory; |
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struct display display; |
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struct emu_value *value; |
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uint8_t display_pad1[4]; |
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uint8_t display_buffer[(2 * DISPLAY_WIDTH_BYTES) // max columns |
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* (2 * DISPLAY_HEIGHT_BITS)]; // max rows |
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uint8_t display_pad2[4]; |
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// struct emu_value reserved; |
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} emu_state; |
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void initialize(emu_state *state); |
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void print_display(struct display *display); |
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void loop(emu_state *state); |
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extern int chip_errored; |
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#define info(str) \ |
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do { \ |
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printf("INFO %s:%d %s\n", __FILE__, __LINE__, str); \ |
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} while (0) |
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#define warn(str) \ |
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do { \ |
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printf("WARN %s:%d %s\n", __FILE__, __LINE__, str); \ |
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} while (0) |
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#define error(str) \ |
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do { \ |
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printf("ERRO %s:%d %s\n", __FILE__, __LINE__, str); \ |
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chip_errored = 1; \ |
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} while (0)
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