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| author | Gavin Romig-Koch <gavin@redhat.com> | 1998-03-10 15:37:24 +0000 |
|---|---|---|
| committer | Gavin Romig-Koch <gavin@redhat.com> | 1998-03-10 15:37:24 +0000 |
| commit | 5fa71251a083c3a47389012d8cc8ec3bd2c4c980 (patch) | |
| tree | 19e7346636d32d62a38112a938a7c68c4571c44b | |
| parent | e625962d8e724c1eaa9022793feb5785fb1bf2b6 (diff) | |
| download | gdb-5fa71251a083c3a47389012d8cc8ec3bd2c4c980.zip gdb-5fa71251a083c3a47389012d8cc8ec3bd2c4c980.tar.gz gdb-5fa71251a083c3a47389012d8cc8ec3bd2c4c980.tar.bz2 | |
* vr4320.igen (clz,dclz) : Added.
(dmac): Replaced 99, with LO.
| -rw-r--r-- | sim/mips/ChangeLog | 7 | ||||
| -rw-r--r-- | sim/mips/vr4320.igen | 41 |
2 files changed, 47 insertions, 1 deletions
diff --git a/sim/mips/ChangeLog b/sim/mips/ChangeLog index dc421d9..cef52c2 100644 --- a/sim/mips/ChangeLog +++ b/sim/mips/ChangeLog @@ -1,3 +1,10 @@ +start-sanitize-vr4320 +Tue Mar 10 10:32:22 1998 Gavin Koch <gavin@cygnus.com> + + * vr4320.igen (clz,dclz) : Added. + (dmac): Replaced 99, with LO. + +end-sanitize-vr4320 start-sanitize-vr5400 Fri Mar 6 08:30:58 1998 Andrew Cagney <cagney@b1.cygnus.com> diff --git a/sim/mips/vr4320.igen b/sim/mips/vr4320.igen index 7dd3776..50a9d02 100644 --- a/sim/mips/vr4320.igen +++ b/sim/mips/vr4320.igen @@ -60,9 +60,48 @@ "dmac r<RS>, r<RT>" *vr4320: { - LO = 99 + SignedMultiply (SD_, GPR[RS], GPR[RT]); + LO = LO + SignedMultiply (SD_, GPR[RS], GPR[RT]); } +// Count Leading Zeros +000000,5.RS,00000,5.RD,00000,110101::::CLZ +"clz r<RD>, r<RS>" +*vr4320: +{ + unsigned32 t = Low32Bits (SD_, GPR[RS]); + signed64 c = 0; + + while (! (t & ( 1 << 31)) + && c < 32) + { + c++; + t <<= 1; + } + + GPR[RD] = c; +} + +// D-Count Leading Zeros +000000,5.RS,00000,5.RD,00000,111101::::DCLZ +"dclz r<RD>, r<RS>" +*vr4320: +{ + unsigned64 t = GPR[RS]; + signed64 c = 0; + + while (! (t & ( (unsigned64)1 << 63)) + && c < 64) + { + c++; + t <<= 1; + } + + printf("lo %d\n", c); + GPR[RD] = c; +} + + + |