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execute1: Use r.<field> not v.<field> in countzero code

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This simplifies logic and improves timing.

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
This commit is contained in:
Paul Mackerras
2020-07-28 12:09:02 +10:00
parent f1238299bd
commit 081684273e
1 changed files with 3 additions and 3 deletions
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6
execute1.vhdl
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@@ -949,9 +949,9 @@ begin
-- cnt[lt]z always takes two cycles
result := countzero_result;
result_en := '1';
v.e.write_reg := gpr_to_gspr(v.slow_op_dest);
v.e.rc := v.slow_op_rc;
v.e.xerc := v.slow_op_xerc;
v.e.write_reg := gpr_to_gspr(r.slow_op_dest);
v.e.rc := r.slow_op_rc;
v.e.xerc := r.slow_op_xerc;
v.e.valid := '1';
elsif r.mul_in_progress = '1' or r.div_in_progress = '1' then
if (r.mul_in_progress = '1' and multiply_to_x.valid = '1') or