colin
/
Hazard3
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Couple more silly mistakes

This commit is contained in:
Luke Wren 2021-11-26 01:30:13 +00:00
parent 41eeb90c7d
commit 8bcec11c80
1 changed files with 7 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
hdl/arith/hazard3_alu.v
View File

@ -49,9 +49,9 @@ wire sub = !(aluop == ALUOP_ADD || (|EXTENSION_ZBA && (
aluop == ALUOP_SH1ADD || aluop == ALUOP_SH2ADD || aluop == ALUOP_SH3ADD
)));
wire inv_op_b = sub || (|EXTENSION_ZBB && (
aluop == ALUOP_ANDN || aluop == ALUOP_ORN || aluop == ALUOP_XNOR
));
wire inv_op_b = sub && !(
aluop == ALUOP_AND || aluop == ALUOP_OR || aluop == ALUOP_XOR
);
wire [W_DATA-1:0] op_a_shifted =
|EXTENSION_ZBA && aluop == ALUOP_SH1ADD ? op_a << 1 :
@ -158,7 +158,7 @@ end
wire [W_DATA-1:0] zbs_mask = {{W_DATA-1{1'b0}}, 1'b1} << op_b[W_SHAMT-1:0];
always @ (*) begin
casez ({|EXTENSION_ZBA, |EXTENSION_ZBB, EXTENSION_ZBC, |EXTENSION_ZBS, aluop})
casez ({|EXTENSION_ZBA, |EXTENSION_ZBB, |EXTENSION_ZBC, |EXTENSION_ZBS, aluop})
// Base ISA
{4'bzzzz, ALUOP_ADD }: result = sum;
{4'bzzzz, ALUOP_SUB }: result = sum;
@ -176,9 +176,9 @@ always @ (*) begin
{4'bz1zz, ALUOP_ANDN }: result = bitwise;
{4'bz1zz, ALUOP_ORN }: result = bitwise;
{4'bz1zz, ALUOP_XNOR }: result = bitwise;
{4'bz1zz, ALUOP_CLZ }: result = ctz_clz;
{4'bz1zz, ALUOP_CTZ }: result = ctz_clz;
{4'bz1zz, ALUOP_CPOP }: result = cpop;
{4'bz1zz, ALUOP_CLZ }: result = {{W_DATA-W_SHAMT-1{1'b0}}, ctz_clz};
{4'bz1zz, ALUOP_CTZ }: result = {{W_DATA-W_SHAMT-1{1'b0}}, ctz_clz};
{4'bz1zz, ALUOP_CPOP }: result = {{W_DATA-W_SHAMT-1{1'b0}}, cpop};
{4'bz1zz, ALUOP_MAX }: result = lt ? op_b : op_a;
{4'bz1zz, ALUOP_MAXU }: result = lt ? op_b : op_a;
{4'bz1zz, ALUOP_MIN }: result = lt ? op_a : op_b;