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libmach: disassemble MOVLQZX correctly

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R=ken2
CC=golang-dev
https://golang.org/cl/1007041
This commit is contained in:
Russ Cox 2010-04-26 01:09:19 -07:00
parent c6138efbcb
commit 43409ed2c6
1 changed files with 6 additions and 2 deletions
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6
src/libmach/8db.c
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@ -1131,7 +1131,7 @@ static Optable optabFF[8] =
[0x06] 0,0, "PUSHL %e", [0x06] 0,0, "PUSHL %e",
}; };
static Optable optable[256+1] = static Optable optable[256+2] =
{ {
[0x00] RMB,0, "ADDB %r,%e", [0x00] RMB,0, "ADDB %r,%e",
[0x01] RM,0, "ADD%S %r,%e", [0x01] RM,0, "ADD%S %r,%e",
@ -1387,6 +1387,7 @@ static Optable optable[256+1] =
[0xfe] RMOPB,0, optabFE, [0xfe] RMOPB,0, optabFE,
[0xff] RMOP,0, optabFF, [0xff] RMOP,0, optabFF,
[0x100] RM,0, "MOVLQSX %e,%r", [0x100] RM,0, "MOVLQSX %e,%r",
[0x101] RM,0, "MOVLQZX %e,%r",
}; };
/* /*
@ -1590,7 +1591,10 @@ newop:
return 0; return 0;
} }
if(c == 0x63){ if(c == 0x63){
if(ip->rex&REXW)
op = &obase[0x100]; /* MOVLQSX */ op = &obase[0x100]; /* MOVLQSX */
else
op = &obase[0x101]; /* MOVLQZX */
goto hack; goto hack;
} }
} }