riscv
/
yosys
mirror of https://github.com/YosysHQ/yosys.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

mul2dsp: Fix indentation 

Signed-off-by: David Shah <dave@ds0.me>
This commit is contained in:
David Shah 2019-07-16 16:19:32 +01:00
parent 91fcf034bc
commit 7a75f5f3ac
1 changed files with 7 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
techlibs/common/mul2dsp.v
View File

@ -92,7 +92,7 @@ module \$__mul_gen (A, B, Y);
.B(B),
.Y(partial_sum[0][B_WIDTH+`DSP_A_MAXWIDTH-1:0])
);
assign partial_sum[0][Y_WIDTH-1:B_WIDTH+`DSP_A_MAXWIDTH]=0;
assign partial_sum[0][Y_WIDTH-1:B_WIDTH+`DSP_A_MAXWIDTH]=0;
for (i = 1; i < n-1; i=i+1) begin:slice
\$__mul_gen #(
@ -149,7 +149,7 @@ module \$__mul_gen (A, B, Y);
.B(B[`DSP_B_MAXWIDTH-1:0]),
.Y(partial_sum[0][A_WIDTH+`DSP_B_MAXWIDTH-1:0])
);
assign partial_sum[0][Y_WIDTH-1:A_WIDTH+`DSP_B_MAXWIDTH]=0;
assign partial_sum[0][Y_WIDTH-1:A_WIDTH+`DSP_B_MAXWIDTH]=0;
for (i = 1; i < n-1; i=i+1) begin:slice
\$__mul_gen #(
@ -157,14 +157,14 @@ module \$__mul_gen (A, B, Y);
.B_SIGNED(B_SIGNED),
.A_WIDTH(A_WIDTH),
.B_WIDTH(`DSP_B_MAXWIDTH),
.Y_WIDTH(A_WIDTH+`DSP_B_MAXWIDTH)
.Y_WIDTH(A_WIDTH+`DSP_B_MAXWIDTH)
) mul (
.A(A),
.B(B[(i+1)*`DSP_B_MAXWIDTH-1:i*`DSP_B_MAXWIDTH]),
.Y(partial[i][A_WIDTH+`DSP_B_MAXWIDTH-1:0])
);
//assign partial_sum[i] = (partial[i] << i*`DSP_B_MAXWIDTH) + partial_sum[i-1];
// was:
// was:
//assign partial_sum[i] = {
// partial[i][A_WIDTH+`DSP_B_MAXWIDTH-1:`DSP_B_MAXWIDTH],
// partial[i][`DSP_B_MAXWIDTH-1:0] + partial_sum[i-1][A_WIDTH+(i*`DSP_B_MAXWIDTH)-1:A_WIDTH+((i-1)*`DSP_B_MAXWIDTH)],
@ -187,14 +187,14 @@ module \$__mul_gen (A, B, Y);
.B(B[B_WIDTH-1:(n-1)*`DSP_B_MAXWIDTH]),
.Y(partial[n-1][A_WIDTH+B_WIDTH-(n-1)*`DSP_B_MAXWIDTH-1:0])
);
// AMD: this came comment out -- looks closer to right answer
// AMD: this came comment out -- looks closer to right answer
//assign Y = (partial[n-1] << (n-1)*`DSP_B_MAXWIDTH) + partial_sum[n-2];
// was (looks broken)
// was (looks broken)
//assign Y = {
// partial[n-1][A_WIDTH+`DSP_B_MAXWIDTH-1:`DSP_B_MAXWIDTH],
// partial[n-1][`DSP_B_MAXWIDTH-1:0] + partial_sum[n-2][A_WIDTH+((n-1)*`DSP_B_MAXWIDTH)-1:A_WIDTH+((n-2)*`DSP_B_MAXWIDTH)],
// partial_sum[n-2][A_WIDTH+((n-2)*`DSP_B_MAXWIDTH):0]
assign Y = {
assign Y = {
partial[n-1][A_WIDTH+B_WIDTH-(n-1)*`DSP_B_MAXWIDTH-1:0]
+ partial_sum[n-2][Y_WIDTH-1:((n-1)*`DSP_B_MAXWIDTH)],
partial_sum[n-2][((n-1)*`DSP_B_MAXWIDTH)-1:0]