diff --git a/Instruction-Set.md b/Instruction-Set.md
index 89d5af9..15e1ffd 100644
--- a/Instruction-Set.md
+++ b/Instruction-Set.md
@@ -4,9 +4,9 @@
 | Instruction mnemonic | Operands | Opcode | `C Z S O B` |
 | -------------------- |:-------- |:------:|:--------- |
 | **ADD** *destination*, *source* | *mem/reg*, *mem/reg/imm* | 0x02 | `X X X X  -` |
-| **AND** *destination*, *source* | *mem/reg*, *mem/reg/imm* | 0x04 | `0 X X 0  -` |
+| **OR** *destination*, *source* | *mem/reg*, *mem/reg/imm* | 0x04 | `0 X X 0  -` |
 | **BRK** | *None* | 0x00 |`- - - - 1` |
-| **CALL** *target* | *mem/reg/imm* | 0x04 |`- - - - -` |
+| **CALL** *target* | *mem/reg/imm* | 0x15 |`- - - - -` |
 | **CMP** *destination*, *source* | *mem/reg*, *mem/reg/imm* | 0x0C |`X X X X -` |
 | **DIV** *source* | *mem/reg/imm* |  0x18 |`- - - - -` |
 | **HWI** *source* | *mem/reg/imm* | 0x09 |`- - - - -` |