projects / screensavers / blame
| Commit | Line | Data |
|---|---|---|
| 84b74595 AT |
1 | /* (c) 2021 Aaron Taylor <ataylor at subgeniuskitty dot com> */ |
| 2 | /* See LICENSE.txt file for copyright and license details. */ | |
| 3 | ||
| 4 | // TODO: Prune includes in both this header and the corresponding source file. | |
| 5 | #include <stdio.h> | |
| 6 | #include <stdint.h> | |
| 7 | #include <inttypes.h> | |
| 8 | #include <stdlib.h> | |
| 9 | #include <stdbool.h> | |
| 10 | #include <unistd.h> | |
| 11 | #include <fcntl.h> | |
| 12 | #include <string.h> | |
| 13 | #include <errno.h> | |
| 14 | #include <time.h> | |
| 15 | #include <termios.h> | |
| 16 | #include <signal.h> | |
| 17 | #include <sys/socket.h> | |
| 18 | #include <sys/types.h> | |
| 19 | #include <netinet/in.h> | |
| 20 | #include <arpa/inet.h> | |
| 21 | #include <netdb.h> | |
| 22 | ||
| 23 | #include "./a.out.h" | |
| 24 | ||
| 25 | // TODO: Can get rid of this since I don't do a show_usage() anymore? | |
| 26 | #define VERSION 5 | |
| 27 | ||
| 28 | /* Bytes per word. */ | |
| 29 | #define BPW 4 | |
| 30 | ||
| 31 | /* Number of stack words. */ | |
| 32 | #define STACK_LENGTH 1048576 | |
| 33 | ||
| 34 | /* Number of bytes of RAM. */ | |
| 35 | #define RAM_LENGTH 1073741824 | |
| 36 | ||
| 37 | /* Number of hardware threads. */ | |
| 38 | #define THREAD_COUNT 8 | |
| 39 | ||
| 40 | /* Number of syllables per word. */ | |
| 41 | #define SPW 5 | |
| 42 | ||
| 43 | struct NEDpsw { | |
| 44 | bool zero; | |
| 45 | bool negative; | |
| 46 | }; | |
| 47 | ||
| 48 | struct NEDthread { | |
| 49 | uint32_t stack[STACK_LENGTH]; | |
| 50 | uint32_t sp; | |
| 51 | uint32_t pc; | |
| 52 | uint8_t sc; | |
| 53 | struct NEDpsw * psw; | |
| 54 | }; | |
| 55 | ||
| 56 | struct NEDhack { | |
| 57 | uint32_t iw; | |
| 58 | bool resume_word; | |
| 59 | }; | |
| 60 | ||
| 61 | // TODO: Make this a single thread before committing. Multi-thread is broken with my current main loop. | |
| 62 | struct NEDstate { | |
| 63 | bool halted; | |
| 64 | uint8_t ram[RAM_LENGTH]; | |
| 65 | struct NEDthread * thread[THREAD_COUNT]; | |
| 66 | struct NEDthread * active_thread; | |
| 67 | struct NEDhack * hack; | |
| 68 | }; | |
| 69 | ||
| 70 | enum syllables { | |
| 71 | MVSTCK = 0b00001111, | |
| 72 | JMP = 0b00001110, | |
| 73 | SWAP = 0b00001101, | |
| 74 | ADD = 0b00001100, | |
| 75 | XOR = 0b00001011, | |
| 76 | NOT = 0b00001010, | |
| 77 | OR = 0b00001001, | |
| 78 | AND = 0b00001000, | |
| 79 | BRZ = 0b00000111, | |
| 80 | TEST = 0b00000110, | |
| 81 | CMPSWP = 0b00000101, | |
| 82 | SHIFT = 0b00000100, | |
| 83 | STORE = 0b00000011, | |
| 84 | LOAD = 0b00000010, | |
| 85 | NOP = 0b00000001, | |
| 86 | HALT = 0b00000000 | |
| 87 | }; | |
| 88 | ||
| 89 | struct NEDstate * init_simulator(void); | |
| 90 | struct NEDstate * run_simulator(struct NEDstate * state); | |
| 91 | uint32_t ram_r_word(struct NEDstate * state, uint32_t address); | |
| 92 |