started op table

memory/memory.go

@@ -13,6 +13,19 @@ func Read(addr uint) []byte {
 	return memory[addr : addr+9]
 }
 
+func Read8(addr uint) byte {
+	checkInside(addr)
+
+	return memory[addr]
+}
+
+func Read16(addr uint) uint16 {
+	checkInside(addr)
+	checkInside(addr + 8)
+
+	return uint16(memory[addr])<<8 | uint16(memory[addr+1])
+}
+
 func Write(addr uint, val [8]byte) {
 	checkInside(addr)
 	for i := 0; i < 8; i++ {
@@ -20,6 +33,11 @@ func Write(addr uint, val [8]byte) {
 	}
 }
 
+func Write8(addr uint, val byte) {
+	checkInside(addr)
+	memory[int(addr)] = val
+}
+
 func WriteAll(addr uint, val []byte) {
 	checkInside(addr)
 	checkInside(addr + uint(len(val)))