initial

farm/program.c

@@ -0,0 +1,24 @@
+#include "program.h"
+#include <stddef.h>
+#include <stdlib.h>
+#include <stdio.h>
+struct Program* load_program(char* filename) {
+    FILE* f = fopen(filename, "r");
+    if (f == NULL) {
+        return NULL;
+    }
+    int num_instructions;
+    int num_read = fread(&num_instructions, 4, 1, f);
+    if (num_read != 1) {
+        return NULL;
+    }
+    int program_size = 4 + num_instructions * 4;
+    struct Program* program = (struct Program *)malloc(program_size);
+    program->num_instructions = num_instructions;
+    num_read = fread(&program->instructions, 1, program_size-4, f);
+    if (num_read != program_size-4) {
+        return NULL;
+    }
+    fclose(f);
+    return program;
+}