Initial cpu and instruction parsing

lib/instructions.c

@@ -0,0 +1,22 @@
+#include <instructions.h>
+#include <cpu.h>
+
+instruction instructions[0x100] = {
+    [0x00] = {IN_NOP, AM_IMP},
+
+    [0x05] = {IN_DEC, AM_R, RT_B},
+
+    [0x0E] = {IN_LD, AM_R_D8, RT_C},
+
+    [0xAF] = {IN_XOR, AM_R, RT_A},
+
+    [0xC3] = {IN_JP, AM_D16},
+};
+
+instruction *instruction_by_opcode(u8 opcode) {
+    if (instructions[opcode].type == IN_NONE) {
+        return NULL;
+    }
+
+    return &instructions[opcode];
+}