PATCH: MMX disassembly
Marcus Meissner
marcus at jet.franken.de
Fri Apr 20 16:44:56 CDT 2001
Hi,
One demo program crashes on me in an MMX instruction. Got a good look
at binutils/opcodes/ and added some of those MMX 0f codes. I did not
find others yet, but will add them as they come available.
And why isn't there a defined interface to libopcodes :(
Ciao, Marcus
Changelog:
added some MMX disassembly to the debugger.
Index: db_disasm.c
===================================================================
RCS file: /home/wine/wine/debugger/db_disasm.c,v
retrieving revision 1.19
diff -u -r1.19 db_disasm.c
--- db_disasm.c 2000/09/24 03:15:51 1.19
+++ db_disasm.c 2001/04/20 22:48:06
@@ -128,6 +128,8 @@
#define STI 32 /* FP stack */
#define X 33 /* extended FP op */
#define XA 34 /* for 'fstcw %ax' */
+#define MX 35 /* special register (mmx) */
+#define EMX 36 /* special register (mmx) */
struct inst {
const char *i_name; /* name */
@@ -182,6 +184,39 @@
"btc"
};
+static const char * const db_Grp10[] = {
+ "(bad)",
+ "(bad)",
+ "psrlw",
+ "(bad)",
+ "psraw",
+ "(bad)",
+ "psllw",
+ "(bad)"
+};
+
+static const char * const db_Grp11[] = {
+ "(bad)",
+ "(bad)",
+ "psrld",
+ "(bad)",
+ "psrad",
+ "(bad)",
+ "pslld",
+ "(bad)"
+};
+
+static const char * const db_Grp12[] = {
+ "(bad)",
+ "(bad)",
+ "psrlq",
+ "(bad)",
+ "psraq",
+ "(bad)",
+ "psllq",
+ "(bad)"
+};
+
static const struct inst db_inst_0f0x[] = {
/*00*/ { "", TRUE, NONE, op1(Ew), (char *)db_Grp6 },
/*01*/ { "", TRUE, NONE, op1(Ew), (char *)db_Grp7 },
@@ -242,6 +277,46 @@
/*4f*/ { "cmovnle",TRUE, NONE, op2(E, R), 0 },
};
+static const struct inst db_inst_0f6x[] = {
+/*60*/ { "punpcklbw", TRUE, NONE, op2(E, MX), 0 },
+/*61*/ { "punpcklwd", TRUE, NONE, op2(E, MX), 0 },
+/*62*/ { "punpckldq", TRUE, NONE, op2(E, MX), 0 },
+/*63*/ { "packsswb", TRUE, NONE, op2(E, MX), 0 },
+/*64*/ { "pcmpgtb", TRUE, NONE, op2(E, MX), 0 },
+/*65*/ { "pcmpgtw", TRUE, NONE, op2(E, MX), 0 },
+/*66*/ { "pcmpgtd", TRUE, NONE, op2(E, MX), 0 },
+/*67*/ { "packuswb", TRUE, NONE, op2(E, MX), 0 },
+
+/*68*/ { "punpckhbw", TRUE, NONE, op2(E, MX), 0 },
+/*69*/ { "punpckhwd", TRUE, NONE, op2(E, MX), 0 },
+/*6a*/ { "punpckhdq", TRUE, NONE, op2(E, MX), 0 },
+/*6b*/ { "packssdw", TRUE, NONE, op2(E, MX), 0 },
+/*6c*/ { "(bad)", TRUE, NONE, 0, 0 },
+/*6d*/ { "(bad)", TRUE, NONE, 0, 0 },
+/*6e*/ { "movd", TRUE, NONE, op2(E, MX), 0 },
+/*6f*/ { "movq", TRUE, NONE, op2(E, MX), 0 },
+};
+
+static const struct inst db_inst_0f7x[] = {
+/*70*/ { "pshufw", TRUE, NONE, op2(MX, EMX), 0 },
+/*71*/ { "(grp10)", TRUE, BYTE, op2(EMX, I), (char*)db_Grp10 },
+/*72*/ { "(grp11)", TRUE, BYTE, op2(EMX, I), (char*)db_Grp11 },
+/*73*/ { "(grp12)", TRUE, BYTE, op2(EMX, I), (char*)db_Grp12 },
+/*74*/ { "pcmpeqb", TRUE, NONE, op2(E, MX), 0 },
+/*75*/ { "pcmpeqw", TRUE, NONE, op2(E, MX), 0 },
+/*76*/ { "pcmpeqd", TRUE, NONE, op2(E, MX), 0 },
+/*77*/ { "emms", FALSE,NONE, 0, 0 },
+
+/*78*/ { "(bad)", TRUE, NONE, 0, 0 },
+/*79*/ { "(bad)", TRUE, NONE, 0, 0 },
+/*7a*/ { "(bad)", TRUE, NONE, 0, 0 },
+/*7b*/ { "(bad)", TRUE, NONE, 0, 0 },
+/*7c*/ { "(bad)", TRUE, NONE, 0, 0 },
+/*7d*/ { "(bad)", TRUE, NONE, 0, 0 },
+/*7e*/ { "movd", TRUE, NONE, op2(E, MX), 0 },
+/*7f*/ { "movq", TRUE, NONE, op2(EMX, MX), 0 },
+};
+
static const struct inst db_inst_0f8x[] = {
/*80*/ { "jo", FALSE, NONE, op1(Dl), 0 },
/*81*/ { "jno", FALSE, NONE, op1(Dl), 0 },
@@ -342,22 +417,41 @@
};
static const struct inst db_inst_0fdx[] = {
-/*c0*/ { "cmpxchg",TRUE, BYTE, op2(R, E), 0 },
-/*c1*/ { "cmpxchg",TRUE, LONG, op2(R, E), 0 },
-/*c2*/ { "", FALSE, NONE, 0, 0 },
-/*c3*/ { "", FALSE, NONE, 0, 0 },
-/*c4*/ { "", FALSE, NONE, 0, 0 },
-/*c5*/ { "", FALSE, NONE, 0, 0 },
-/*c6*/ { "", FALSE, NONE, 0, 0 },
-/*c7*/ { "", FALSE, NONE, 0, 0 },
-/*c8*/ { "", FALSE, NONE, 0, 0 },
-/*c9*/ { "", FALSE, NONE, 0, 0 },
-/*ca*/ { "", FALSE, NONE, 0, 0 },
-/*cb*/ { "", FALSE, NONE, 0, 0 },
-/*cc*/ { "", FALSE, NONE, 0, 0 },
-/*cd*/ { "", FALSE, NONE, 0, 0 },
-/*ce*/ { "", FALSE, NONE, 0, 0 },
-/*cf*/ { "", FALSE, NONE, 0, 0 },
+/*d0*/ { "(bad)", FALSE, NONE,0, 0 },
+/*d1*/ { "psrlw", TRUE, NONE,op2(MX,EMX), 0 },
+/*d2*/ { "psrld", TRUE, NONE,op2(MX,EMX), 0 },
+/*d3*/ { "psrld", TRUE, NONE,op2(MX,EMX), 0 },
+/*d4*/ { "(bad)", FALSE, NONE,0, 0 },
+/*d5*/ { "pmulww", TRUE, NONE,op2(MX,EMX), 0 },
+/*d6*/ { "(bad)", FALSE, NONE,0, 0 },
+/*d7*/ { "pmovmskb",FALSE, NONE,op2(MX,EMX),0 },
+/*d8*/ { "psubusb", TRUE, NONE,op2(MX,EMX), 0 },
+/*d9*/ { "psubusw", TRUE, NONE,op2(MX,EMX), 0 },
+/*da*/ { "pminub", TRUE, NONE,op2(MX,EMX), 0 },
+/*db*/ { "pand", TRUE, NONE,op2(MX,EMX), 0 },
+/*dc*/ { "paddusb", TRUE, NONE,op2(MX,EMX), 0 },
+/*dd*/ { "paddusw", TRUE, NONE,op2(MX,EMX), 0 },
+/*de*/ { "pmaxub", TRUE, NONE,op2(MX,EMX), 0 },
+/*df*/ { "pandn", TRUE, NONE,op2(MX,EMX), 0 },
+};
+
+static const struct inst db_inst_0fex[] = {
+/*e0*/ { "pavgb", TRUE, NONE, op2(MX, EMX), 0 },
+/*e1*/ { "psraw", TRUE, NONE, op2(MX, EMX), 0 },
+/*e2*/ { "psrad", TRUE, NONE, op2(MX, EMX), 0 },
+/*e3*/ { "pavgw", TRUE, NONE, op2(MX, EMX), 0 },
+/*e4*/ { "pmulhuw",TRUE, NONE, op2(MX, EMX), 0 },
+/*e5*/ { "pmulhw", TRUE, NONE, op2(MX, EMX), 0 },
+/*e6*/ { "(bad)", FALSE,NONE, 0, 0 },
+/*e7*/ { "movntq", TRUE, NONE, op2(MX, EMX), 0 },
+/*e8*/ { "psubsb", TRUE, NONE, op2(MX, EMX), 0 },
+/*e9*/ { "psubsw", TRUE, NONE, op2(MX, EMX), 0 },
+/*ea*/ { "pminsw", TRUE, NONE, op2(MX, EMX), 0 },
+/*eb*/ { "por", TRUE, NONE, op2(MX, EMX), 0 },
+/*ec*/ { "paddsb", TRUE, NONE, op2(MX, EMX), 0 },
+/*ed*/ { "paddsw", TRUE, NONE, op2(MX, EMX), 0 },
+/*ee*/ { "pmaxsw", TRUE, NONE, op2(MX, EMX), 0 },
+/*ef*/ { "pxor", TRUE, NONE, op2(MX, EMX), 0 },
};
static const struct inst * const db_inst_0f[] = {
@@ -366,16 +460,16 @@
db_inst_0f2x,
0,
db_inst_0f4x,
- 0,
0,
- 0,
+ db_inst_0f6x,
+ db_inst_0f7x,
db_inst_0f8x,
db_inst_0f9x,
db_inst_0fax,
db_inst_0fbx,
db_inst_0fcx,
db_inst_0fdx,
- 0,
+ db_inst_0fex,
0
};
@@ -1295,7 +1389,10 @@
ip->i_extra == (char *)db_Grp2 ||
ip->i_extra == (char *)db_Grp6 ||
ip->i_extra == (char *)db_Grp7 ||
- ip->i_extra == (char *)db_Grp8) {
+ ip->i_extra == (char *)db_Grp8 ||
+ ip->i_extra == (char *)db_Grp10 ||
+ ip->i_extra == (char *)db_Grp11 ||
+ ip->i_extra == (char *)db_Grp12) {
i_name = ((char **)ip->i_extra)[f_reg(regmodrm)];
}
else if (ip->i_extra == (char *)db_Grp3) {
@@ -1406,6 +1503,19 @@
DEBUG_Printf(DBG_CHN_MESG,"%s", db_reg[size][f_reg(regmodrm)]);
}
break;
+ case MX:
+ if( db_display )
+ {
+ DEBUG_Printf(DBG_CHN_MESG,"%%mm%d", f_reg(regmodrm));
+ }
+ break;
+ case EMX:
+ if( db_display )
+ {
+ DEBUG_Printf(DBG_CHN_MESG,"%%mm%d", f_rm(regmodrm));
+ }
+ break;
+
case Rw:
if( db_display )
More information about the wine-patches
mailing list