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| author | Anthony Martin <ality@pbrane.org> | 2011-06-23 09:32:29 -0400 |
|---|---|---|
| committer | Russ Cox <rsc@golang.org> | 2011-06-23 09:32:29 -0400 |
| commit | d847467041ab93c108b932c25f6ccaa37bfccc47 (patch) | |
| tree | 4fae00087f50d4ae3ad596ca6fa46ff1679e346a | |
| parent | 8f72a87b4ca236805bb8417ed85812cf38998d9d (diff) | |
| download | go-d847467041ab93c108b932c25f6ccaa37bfccc47.tar.gz go-d847467041ab93c108b932c25f6ccaa37bfccc47.zip | |
libmach: fix disassembly of FCMOVcc and FCOMI
The optable for 0xDB is handled specially.
This was the cause of a really weird bug
when using cov (386!) on the math package.
A real head-scratcher.
R=rsc
CC=golang-dev
https://golang.org/cl/4639066
| -rw-r--r-- | src/libmach/8db.c | 54 |
1 files changed, 48 insertions, 6 deletions
diff --git a/src/libmach/8db.c b/src/libmach/8db.c index 5a195baf88..5b3de69a51 100644 --- a/src/libmach/8db.c +++ b/src/libmach/8db.c @@ -1017,14 +1017,56 @@ static Optable optabDB[8+64] = [0x03] = { 0,0, "FMOVLP F0,%e" }, [0x05] = { 0,0, "FMOVX %e,F0" }, [0x07] = { 0,0, "FMOVXP F0,%e" }, -[0x08] = { 0,0, "FCMOVCC %f,F0" }, -[0x09] = { 0,0, "FCMOVNE %f,F0" }, -[0x0a] = { 0,0, "FCMOVHI %f,F0" }, -[0x0b] = { 0,0, "FCMOVNU %f,F0" }, -[0x0d] = { 0,0, "FUCOMI F0,%f" }, -[0x0e] = { 0,0, "FCOMI F0,%f" }, +[0x08] = { 0,0, "FCMOVCC F0,F0" }, /* Mod R/M = 11xx xxxx*/ +[0x09] = { 0,0, "FCMOVCC F1,F0" }, +[0x0a] = { 0,0, "FCMOVCC F2,F0" }, +[0x0b] = { 0,0, "FCMOVCC F3,F0" }, +[0x0c] = { 0,0, "FCMOVCC F4,F0" }, +[0x0d] = { 0,0, "FCMOVCC F5,F0" }, +[0x0e] = { 0,0, "FCMOVCC F6,F0" }, +[0x0f] = { 0,0, "FCMOVCC F7,F0" }, +[0x10] = { 0,0, "FCMOVNE F0,F0" }, +[0x11] = { 0,0, "FCMOVNE F1,F0" }, +[0x12] = { 0,0, "FCMOVNE F2,F0" }, +[0x13] = { 0,0, "FCMOVNE F3,F0" }, +[0x14] = { 0,0, "FCMOVNE F4,F0" }, +[0x15] = { 0,0, "FCMOVNE F5,F0" }, +[0x16] = { 0,0, "FCMOVNE F6,F0" }, +[0x17] = { 0,0, "FCMOVNE F7,F0" }, +[0x18] = { 0,0, "FCMOVHI F0,F0" }, +[0x19] = { 0,0, "FCMOVHI F1,F0" }, +[0x1a] = { 0,0, "FCMOVHI F2,F0" }, +[0x1b] = { 0,0, "FCMOVHI F3,F0" }, +[0x1c] = { 0,0, "FCMOVHI F4,F0" }, +[0x1d] = { 0,0, "FCMOVHI F5,F0" }, +[0x1e] = { 0,0, "FCMOVHI F6,F0" }, +[0x1f] = { 0,0, "FCMOVHI F7,F0" }, +[0x20] = { 0,0, "FCMOVNU F0,F0" }, +[0x21] = { 0,0, "FCMOVNU F1,F0" }, +[0x22] = { 0,0, "FCMOVNU F2,F0" }, +[0x23] = { 0,0, "FCMOVNU F3,F0" }, +[0x24] = { 0,0, "FCMOVNU F4,F0" }, +[0x25] = { 0,0, "FCMOVNU F5,F0" }, +[0x26] = { 0,0, "FCMOVNU F6,F0" }, +[0x27] = { 0,0, "FCMOVNU F7,F0" }, [0x2a] = { 0,0, "FCLEX" }, [0x2b] = { 0,0, "FINIT" }, +[0x30] = { 0,0, "FUCOMI F0,F0" }, +[0x31] = { 0,0, "FUCOMI F1,F0" }, +[0x32] = { 0,0, "FUCOMI F2,F0" }, +[0x33] = { 0,0, "FUCOMI F3,F0" }, +[0x34] = { 0,0, "FUCOMI F4,F0" }, +[0x35] = { 0,0, "FUCOMI F5,F0" }, +[0x36] = { 0,0, "FUCOMI F6,F0" }, +[0x37] = { 0,0, "FUCOMI F7,F0" }, +[0x38] = { 0,0, "FCOMI F0,F0" }, +[0x39] = { 0,0, "FCOMI F1,F0" }, +[0x3a] = { 0,0, "FCOMI F2,F0" }, +[0x3b] = { 0,0, "FCOMI F3,F0" }, +[0x3c] = { 0,0, "FCOMI F4,F0" }, +[0x3d] = { 0,0, "FCOMI F5,F0" }, +[0x3e] = { 0,0, "FCOMI F6,F0" }, +[0x3f] = { 0,0, "FCOMI F7,F0" }, }; static Optable optabDC[8+8] = |