diff options
Diffstat (limited to 'design/stack_machine.v')
| -rw-r--r-- | design/stack_machine.v | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/design/stack_machine.v b/design/stack_machine.v index 1fddb18..d466cc8 100644 --- a/design/stack_machine.v +++ b/design/stack_machine.v @@ -127,6 +127,7 @@ module stack_machine assign extended_instruction_bits = instruction[8:0]; /* extended instructions */ + parameter INSTR_TEE = 9'd7; parameter INSTR_MUL = 9'd6; parameter INSTR_DIV = 9'd5; parameter INSTR_SUB = 9'd4; @@ -326,6 +327,8 @@ module stack_machine end INSTR_MUL : r0 <= r0 * r1; + INSTR_TEE : + r1 <= r0; default : begin `ifdef SIMULATION $display("operation not implemented yet"); |