diff options
Diffstat (limited to 'rtl/core/alu')
| -rw-r--r-- | rtl/core/alu/alu.sv | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/rtl/core/alu/alu.sv b/rtl/core/alu/alu.sv index f5a0487..6ded727 100644 --- a/rtl/core/alu/alu.sv +++ b/rtl/core/alu/alu.sv @@ -15,11 +15,11 @@ module core_alu ); logic c, v, swap, sub, and_not, c_shifter, c_add, v_add; - logic[W - 1:0] b, swap_a, swap_b, neg_b, c_in_add, q_add, q_and, q_orr, q_xor; + logic[W - 1:0] b, swap_a, swap_b, not_b, c_in_add, q_add, q_and, q_orr, q_xor; assign swap_a = swap ? b : a; assign swap_b = swap ? a : b; - assign neg_b = -swap_b; + assign not_b = ~b; core_alu_shifter #(.W(W)) shifter ( @@ -33,7 +33,7 @@ module core_alu core_alu_add #(.W(W)) op_add ( .a(swap_a), - .b(sub ? neg_b : swap_b), + .b(sub ? -swap_b : swap_b), .c_in(c_in_add), .q(q_add), .c(c_add), @@ -43,7 +43,7 @@ module core_alu core_alu_and #(.W(W)) op_and ( - .b(and_not ? ~b : b), + .b(and_not ? not_b : b), .q(q_and), .* ); @@ -125,7 +125,7 @@ module core_alu q = b; `ALU_MVN: - q = neg_b; + q = not_b; endcase unique case(ctrl.op) |