sim: mips: delete mmu stubs to move to common sim_{read,write}

The only unique thing about mip's sim_{read,write} helpers is the call to
address_translation on the incoming address.  When we look closer at that
function though, we see it's just a stub that maps physical to virtual,
and the cache/return values are hardcoded.  If we delete this function,
we can then collapse all the callers and drop the custom sim_{read,write}
logic entirely.

Some day we might want to add MMU support, but when we do, we'll want to
have the common layers handle things so all targets benefit.

1 files changed, 2 insertions, 5 deletions

diff --git a/sim/mips/micromips.igen b/sim/mips/micromips.igen
index f24220e..d444f6d 100644
--- a/sim/mips/micromips.igen
+++ b/sim/mips/micromips.igen
@@ -845,11 +845,8 @@
   address_word base = GPR[BASE];
   address_word offset = EXTEND12 (IMMEDIATE);
   address_word vaddr = loadstore_ea (SD_, base, offset);
-  address_word paddr;
-  int uncached;
-  if (AddressTranslation (vaddr, isDATA, isLOAD, &paddr, &uncached,
-			  isTARGET, isREAL))
-    CacheOp (OP, vaddr, paddr, instruction_0);
+  address_word paddr = vaddr;
+  CacheOp (OP, vaddr, paddr, instruction_0);
 }