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main.c
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main.c
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#include <stdio.h>
#include <stdlib.h>
#include <arpa/inet.h>
#include <cvm.h>
int main(int argc, char *argv[]) {
FILE *f = fopen(argv[1], "r");
uint32_t num_instructions;
fread(&num_instructions, sizeof(uint32_t), 1, f);
num_instructions = ntohl(num_instructions);
instruction_t *instructions = (instruction_t *)malloc(sizeof(instruction_t) * num_instructions);
fread(instructions, sizeof(instruction_t), num_instructions, f);
for(int i = 0; i < num_instructions; i++) {
printf("READ: #%d [%d] in1=%d in2=%d out=%d\n", i, instructions[i].opcode, instructions[i].in1, instructions[i].in2, instructions[i].out);
instructions[i].opcode = ntohs(instructions[i].opcode);
instructions[i].in1 = ntohs(instructions[i].in1);
instructions[i].in2 = ntohs(instructions[i].in2);
instructions[i].out = ntohs(instructions[i].out);
printf("TRANSFORMED: #%d [%d] in1=%d in2=%d out=%d\n", i, instructions[i].opcode, instructions[i].in1, instructions[i].in2, instructions[i].out);
}
uint16_t stack_size;
fread(&stack_size, sizeof(uint16_t), 1, f);
stack_size = htons(stack_size);
fclose(f);
printf("Instructions: %d\n", num_instructions);
printf("Stack size: %d [%d]\n", stack_size, (1 << stack_size));
int32_t *stack = (int32_t*)malloc(sizeof(int32_t) * (1 << stack_size));
memory_t memory = {
stack,
((uint32_t)0xFFFFFFFF) >> (32 - stack_size)
};
for(int i = 2; i < argc; i++) {
int arg_num = i - 2;
int arg = atoi(argv[i]);
printf("Arguent[%d] = %d\n", arg_num, arg);
stack[i - 2] = arg;
}
program_t program = {
memory,
{
instructions,
num_instructions
}
};
if(decode_program(program) == 0) {
printf("Result: %d\n", stack[argc - 2]);
} else {
printf("Program failed\n");
}
}