Allow integer instructions and load/store instructions to execute together

Browse Source

Execute1 and loadstore1 now send each other stall signals that
indicate that a valid instruction in stage 2 can't complete in this
cycle, and hence any valid instruction in stage 1 in the other unit
can't move to stage 2.  With this in place, an ALU instruction can
move into stage 1 while a LSU instruction is in stage 2.

Since the FPU doesn't yet have a way to stall completion, we can't yet
start FPU instructions while any LSU or ALU instruction is in
progress.

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>

pull/379/head

Paul Mackerras 4 years ago

parent 4b6148ada6

commit e030a500e8

4 changed files with 22 additions and 16 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Show Stats Download Patch File Download Diff File

Write Preview

Loading…

Cancel

Save