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Diffstat (limited to 'src/runtime.h')
| -rw-r--r-- | src/runtime.h | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/src/runtime.h b/src/runtime.h deleted file mode 100644 index 83ffa17..0000000 --- a/src/runtime.h +++ /dev/null @@ -1,165 +0,0 @@ -/* Copyright (C) 2023 Aryadev Chavali - - * You may distribute and modify this code under the terms of the - * GPLv2 license. You should have received a copy of the GPLv2 - * license with this file. If not, please write to: - * aryadev@aryadevchavali.com. - - * Created: 2023-10-15 - * Author: Aryadev Chavali - * Description: Virtual machine implementation - */ - -#ifndef RUNTIME_H -#define RUNTIME_H - -#include <stdio.h> -#include <stdlib.h> - -#include "./base.h" -#include "./inst.h" - -typedef enum -{ - ERR_OK = 0, - ERR_STACK_UNDERFLOW, - ERR_STACK_OVERFLOW, - ERR_INVALID_OPCODE, - ERR_INVALID_REGISTER_BYTE, - ERR_INVALID_REGISTER_HWORD, - ERR_INVALID_REGISTER_WORD, - ERR_INVALID_PROGRAM_ADDRESS, - ERR_END_OF_PROGRAM, -} err_t; - -const char *err_as_cstr(err_t); - -#define VM_REGISTERS 8 -typedef struct -{ - struct Registers - { - word reg[VM_REGISTERS]; - } registers; - struct Stack - { - byte *data; - word ptr, max; - } stack; - struct Program - { - inst_t *instructions; - word ptr, max; - } program; -} vm_t; - -#define VM_REG_BYTE(REG) ((REG)&0b11111111) -#define VM_REG_HWORD(REG) ((REG)&0b11111111111111111111111111111111) -#define VM_REG_WORD(REG) ((REG)) - -err_t vm_execute(vm_t *); -err_t vm_execute_all(vm_t *); - -void vm_load_stack(vm_t *, byte *, size_t); -void vm_load_program(vm_t *, inst_t *, size_t); - -// Print routines -#define VM_PRINT_PROGRAM_EXCERPT 5 -void vm_print_registers(vm_t *, FILE *); -void vm_print_stack(vm_t *, FILE *); -void vm_print_program(vm_t *, FILE *); -void vm_print_all(vm_t *, FILE *); - -// Execution routines -err_t vm_jump(vm_t *, word); - -err_t vm_pop_byte(vm_t *, data_t *); -err_t vm_pop_hword(vm_t *, data_t *); -err_t vm_pop_word(vm_t *, data_t *); - -err_t vm_push_byte(vm_t *, data_t); -err_t vm_push_hword(vm_t *, data_t); -err_t vm_push_word(vm_t *, data_t); - -typedef err_t (*push_f)(vm_t *, data_t); -static const push_f PUSH_ROUTINES[] = { - [OP_PUSH_BYTE] = vm_push_byte, - [OP_PUSH_HWORD] = vm_push_hword, - [OP_PUSH_WORD] = vm_push_word, -}; - -err_t vm_push_byte_register(vm_t *, byte); -err_t vm_push_hword_register(vm_t *, byte); -err_t vm_push_word_register(vm_t *, byte); - -err_t vm_mov_byte(vm_t *, byte); -err_t vm_mov_hword(vm_t *, byte); -err_t vm_mov_word(vm_t *, byte); - -typedef err_t (*reg_f)(vm_t *, byte); -static const reg_f REG_ROUTINES[] = { - [OP_PUSH_REGISTER_BYTE] = vm_push_byte_register, - [OP_PUSH_REGISTER_HWORD] = vm_push_hword_register, - [OP_PUSH_REGISTER_WORD] = vm_push_word_register, - [OP_MOV_BYTE] = vm_mov_byte, - [OP_MOV_HWORD] = vm_mov_hword, - [OP_MOV_WORD] = vm_mov_word, -}; - -err_t vm_dup_byte(vm_t *, word); -err_t vm_dup_hword(vm_t *, word); -err_t vm_dup_word(vm_t *, word); - -typedef err_t (*dup_f)(vm_t *, word); -static const dup_f DUP_ROUTINES[] = { - [OP_DUP_BYTE] = vm_dup_byte, - [OP_DUP_HWORD] = vm_dup_hword, - [OP_DUP_WORD] = vm_dup_word, -}; - -err_t vm_not_byte(vm_t *); -err_t vm_not_hword(vm_t *); -err_t vm_not_word(vm_t *); - -err_t vm_or_byte(vm_t *); -err_t vm_or_hword(vm_t *); -err_t vm_or_word(vm_t *); - -err_t vm_and_byte(vm_t *); -err_t vm_and_hword(vm_t *); -err_t vm_and_word(vm_t *); - -err_t vm_xor_byte(vm_t *); -err_t vm_xor_hword(vm_t *); -err_t vm_xor_word(vm_t *); - -err_t vm_eq_byte(vm_t *); -err_t vm_eq_hword(vm_t *); -err_t vm_eq_word(vm_t *); - -err_t vm_plus_byte(vm_t *); -err_t vm_plus_hword(vm_t *); -err_t vm_plus_word(vm_t *); - -typedef err_t (*stack_f)(vm_t *); -static const stack_f STACK_ROUTINES[] = { - [OP_NOT_BYTE] = vm_not_byte, [OP_NOT_HWORD] = vm_not_hword, - [OP_NOT_WORD] = vm_not_word, - - [OP_OR_BYTE] = vm_or_byte, [OP_OR_HWORD] = vm_or_hword, - [OP_OR_WORD] = vm_or_word, - - [OP_AND_BYTE] = vm_and_byte, [OP_AND_HWORD] = vm_and_hword, - [OP_AND_WORD] = vm_and_word, - - [OP_XOR_BYTE] = vm_xor_byte, [OP_XOR_HWORD] = vm_xor_hword, - [OP_XOR_WORD] = vm_xor_word, - - [OP_EQ_BYTE] = vm_eq_byte, [OP_EQ_HWORD] = vm_eq_hword, - [OP_EQ_WORD] = vm_eq_word, - - [OP_PLUS_BYTE] = vm_plus_byte, [OP_PLUS_HWORD] = vm_plus_hword, - [OP_PLUS_WORD] = vm_plus_word, -}; - -#endif |