ref: a8f64e53fe2a2a27440dd9441800e8210cb1a00f
dir: /sys/src/libmach/2db.c/
#include <u.h>
#include <libc.h>
#include <bio.h>
#include <mach.h>
/*
* 68020-specific debugger interface
*/
static char *m68020excep(Map*, Rgetter);
static int m68020foll(Map*, uvlong, Rgetter, uvlong*);
static int m68020inst(Map*, uvlong, char, char*, int);
static int m68020das(Map*, uvlong, char*, int);
static int m68020instlen(Map*, uvlong);
Machdata m68020mach =
{
{0x48,0x48,0,0}, /* break point #0 instr. */
2, /* size of break point instr. */
beswab, /* convert short to local byte order */
beswal, /* convert long to local byte order */
beswav, /* convert vlong to local byte order */
cisctrace, /* C traceback */
ciscframe, /* frame finder */
m68020excep, /* print exception */
0, /* breakpoint fixup */
beieeesftos,
beieeedftos,
m68020foll, /* follow-set calculation */
m68020inst, /* print instruction */
m68020das, /* dissembler */
m68020instlen, /* instruction size */
};
/*
* 68020 exception frames
*/
#define BPTTRAP 4 /* breakpoint gives illegal inst */
static char * excep[] = {
[2] "bus error",
[3] "address error",
[4] "illegal instruction",
[5] "zero divide",
[6] "CHK",
[7] "TRAP",
[8] "privilege violation",
[9] "Trace",
[10] "line 1010",
[11] "line 1011",
[13] "coprocessor protocol violation",
[24] "spurious",
[25] "incon",
[26] "tac",
[27] "auto 3",
[28] "clock",
[29] "auto 5",
[30] "parity",
[31] "mouse",
[32] "system call",
[33] "system call 1",
[48] "FPCP branch",
[49] "FPCP inexact",
[50] "FPCP zero div",
[51] "FPCP underflow",
[52] "FPCP operand err",
[53] "FPCP overflow",
[54] "FPCP signal NAN",
};
static int m68020vec;
static
struct ftype{
short fmt;
short len;
char *name;
} ftype[] = { /* section 6.5.7 page 6-24 */
{ 0, 4*2, "Short Format" },
{ 1, 4*2, "Throwaway" },
{ 2, 6*2, "Instruction Exception" },
{ 3, 6*2, "MC68040 Floating Point Exception" },
{ 8, 29*2, "MC68010 Bus Fault" },
{ 7, 30*2, "MC68040 Bus Fault" },
{ 9, 10*2, "Coprocessor mid-Instruction" },
{ 10, 16*2, "MC68020 Short Bus Fault" },
{ 11, 46*2, "MC68020 Long Bus Fault" },
{ 0, 0, 0 }
};
static int
m68020ufix(Map *map)
{
struct ftype *ft;
int i, vec;
ulong efl[2];
uchar *ef=(uchar*)efl;
ulong l;
uvlong stktop;
short fvo;
/* The kernel proc pointer on a 68020 is always
* at #8xxxxxxx; on the 68040 NeXT, the address
* is always #04xxxxxx. the sun3 port at sydney
* uses 0xf8xxxxxx to 0xffxxxxxx.
*/
m68020vec = 0;
if (get4(map, mach->kbase, (&l)) < 0)
return -1;
stktop = mach->kbase+mach->pgsize;
for(i=3; i<100; i++){
if (get1(map, stktop-i*4, (uchar*)&l, 4)< 0)
return -1;
if(machdata->swal(l) == 0xBADC0C0A){
if (get1(map, stktop-(i-1)*4, (uchar *)&efl[0], 4) < 0)
return -1;
if (get1(map, stktop-(i-2)*4, (uchar *)&efl[1], 4) < 0)
return -1;
fvo = (ef[6]<<8)|ef[7];
vec = fvo & 0xfff;
vec >>= 2;
if(vec >= 256)
continue;
for(ft=ftype; ft->name; ft++) {
if(ft->fmt == ((fvo>>12) & 0xF)){
m68020vec = vec;
return 1;
}
}
break;
}
}
return -1;
}
static char *
m68020excep(Map *map, Rgetter rget)
{
uvlong pc;
uchar buf[4];
if (m68020ufix(map) < 0)
return "bad exception frame";
if(excep[m68020vec] == 0)
return "bad exeception type";
if(m68020vec == BPTTRAP) {
pc = (*rget)(map, "PC");
if (get1(map, pc, buf, machdata->bpsize) > 0)
if(memcmp(buf, machdata->bpinst, machdata->bpsize) == 0)
return "breakpoint";
}
return excep[m68020vec];
}
/* 68020 Disassembler and related functions */
/*
not supported: cpBcc, cpDBcc, cpGEN, cpScc, cpTRAPcc, cpRESTORE, cpSAVE
opcode: 1 1 1 1 1 1
5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
%y - register number x x x
%f - trap vector x x x
%e - destination eff addr x x x x x x
%p - conditional predicate x x x x x x
%s - size code x x
%C - cache code x x
%E - source eff addr. x x x x x x
%d - direction bit x
%c - condition code x x x x
%x - register number x x x
%b - shift count x x x
%q - daffy 3-bit quick operand or shift count x x x
%i - immediate operand <varies>
%t - offset(PC) <varies>
word 1: 1 1 1 1 1 1
5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
%a - register number x x x
%w - bit field width x x x x x
%L - MMU function code (SFC/DFC/D%a/#[0-3]) x x x x x
%P - conditional predicate x x x x x x
%k - k factor x x x x x x x
%m - register mask x x x x x x x x
%N - control register id x x x x x x x x x x x x
%j - (Dq != Dr) ? Dq:Dr : Dr x x x x x x
%K - dynamic k register x x x
%h - register number x x x
%I - MMU function code mask x x x x
%o - bit field offset x x x x x
%u - register number x x x
%D - float dest reg x x x
%F - (fdr==fsr) ? "F%D" :"F%B,F%D" x x x x x x
%S - float source type x x x
%B - float source register x x x
%Z - ATC level number x x x
%H - MMU register x x x x
%r - register type/number x x x x
word 2: 1 1 1 1 1 1
5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
%A - register number x x x
%U - register number x x x
%R - register type,number x x x x
-----------------------------------------------------------------------------
%a - register [word 1: 0-2]
%c - condition code [opcode: 8-11]
%d - direction [opcode: 8]
%e - destination effective address [opcode: 0-5]
%f - trap vector [opcode: 0-3]
%h - register [word 1: 5-7]
%i - immediate operand (1, 2, or 4 bytes)
%j - Dq:Dr if Dq != Dr; else Dr => Dr [word 1: 0-2] Dq [word 1: 12-14]
%k - k factor [word 1: 0-6]
%m - register mask [word 1: 0-7]
%o - bit field offset [word 1: 6-10]
%p - conditional predicate [opcode: 0-5]
%q - daffy 3-bit quick operand [opcode: 9-11]
%r - register type, [word 1: 15], register [word 1: 12-14]
%s - size [opcode: 6-7]
%t - offset beyond pc (text address) (2 or 4 bytes)
%u - register [word 1: 6-8]
%w - bit field width [word 1: 0-4]
%x - register [opcode: 9-11]
%y - register [opcode: 0-2]
%A - register [word 2: 0-2]
%B - float source register [word 1: 10-12]
%C - cache identifier [opcode: 6-7] (IC, DC, or BC)
%D - float dest reg [word 1: 7-9]
%E - dest effective address [opcode: 6-11]
%F - float dest reg == float src reg => "F%D"; else "F%B,F%D"
%H - MMU reg [word 1: 10-13] (see above & p 4-53/54)
%I - MMU function code mask [word 1: 5-8]
%K - dynamic k factor register [word 1: 4-6]
%L - MMU function code [word 1: 0-4] (SFC, DFC, D%a, or #[0-3])
%N - control register [word 1: 0-11]
%P - conditional predicate [word 1: 0-5]
%R - register type, [word 2: 15], register [word 2: 12-14]
%S - float source type code [word 1: 10-12]
%U - register [word 2: 6-8]
%Z - ATC level number [word 1: 10-12]
%1 - Special case: EA as second operand
*/
/* Operand classes */
enum {
EAPI = 1, /* extended address: pre decrement only */
EACA, /* extended address: control alterable */
EACAD, /* extended address: control alterable or Dreg */
EACAPI, /* extended address: control alterable or post-incr */
EACAPD, /* extended address: control alterable or pre-decr */
EAMA, /* extended address: memory alterable */
EADA, /* extended address: data alterable */
EAA, /* extended address: alterable */
EAC, /* extended address: control addressing */
EACPI, /* extended address: control addressing or post-incr */
EACD, /* extended address: control addressing or Dreg */
EAD, /* extended address: data addressing */
EAM, /* extended address: memory addressing */
EAM_B, /* EAM with byte immediate data */
EADI, /* extended address: data addressing or immediate */
EADI_L, /* EADI with long immediate data */
EADI_W, /* EADI with word immediate data */
EAALL, /* extended address: all modes */
EAALL_L, /* EAALL with long immediate data */
EAALL_W, /* EAALL with word immediate data */
EAALL_B, /* EAALL with byte immediate date */
/* special codes not directly used for validation */
EAFLT, /* extended address: EADI for B, W, L, or S; else EAM */
EADDA, /* destination extended address: EADA */
BREAC, /* EAC operand for JMP or CALL */
OP8, /* low 8 bits of op word */
I8, /* low 8-bits of first extension word */
I16, /* 16 bits in first extension word */
I32, /* 32 bits in first and second extension words */
IV, /* 8, 16 or 32 bit data in first & 2nd extension words */
C16, /* CAS2 16 bit immediate with bits 9-11 & 3-5 zero */
BR8, /* 8 bits in op word or 16 or 32 bits in extension words
branch instruction format (p. 2-25) */
BR16, /* 16-bit branch displacement */
BR32, /* 32-bit branch displacement */
STACK, /* return PC on stack - follow set only */
};
/* validation bit masks for various EA classes */
enum {
Dn = 0x0001, /* Data register */
An = 0x0002, /* Address register */
Ind = 0x0004, /* Address register indirect */
Pinc = 0x0008, /* Address register indirect post-increment */
Pdec = 0x0010, /* Address register indirect pre-decrement */
Bdisp = 0x0020, /* Base/Displacement in all its forms */
PCrel = 0x0040, /* PC relative addressing in all its forms */
Imm = 0x0080, /* Immediate data */
Abs = 0x0100, /* Absolute */
};
/* EA validation table indexed by operand class number */
static short validea[] =
{
0, /* none */
Pdec, /* EAPI */
Abs|Bdisp|Ind, /* EACA */
Abs|Bdisp|Ind|Dn, /* EACAD */
Abs|Bdisp|Pinc|Ind, /* EACAPI */
Abs|Bdisp|Pdec|Ind, /* EACAPD */
Abs|Bdisp|Pdec|Pinc|Ind, /* EAMA */
Abs|Bdisp|Pdec|Pinc|Ind|Dn, /* EADA */
Abs|Bdisp|Pdec|Pinc|Ind|An|Dn, /* EAA */
Abs|PCrel|Bdisp|Ind, /* EAC */
Abs|PCrel|Bdisp|Pinc|Ind, /* EACPI */
Abs|PCrel|Bdisp|Ind|Dn, /* EACD */
Abs|PCrel|Bdisp|Pdec|Pinc|Ind|Dn, /* EAD */
Abs|Imm|PCrel|Bdisp|Pdec|Pinc|Ind, /* EAM */
Abs|Imm|PCrel|Bdisp|Pdec|Pinc|Ind, /* EAM_B */
Abs|Imm|PCrel|Bdisp|Pdec|Pinc|Ind|Dn, /* EADI */
Abs|Imm|PCrel|Bdisp|Pdec|Pinc|Ind|Dn, /* EADI_L */
Abs|Imm|PCrel|Bdisp|Pdec|Pinc|Ind|Dn, /* EADI_W */
Abs|Imm|PCrel|Bdisp|Pdec|Pinc|Ind|An|Dn, /* EAALL */
Abs|Imm|PCrel|Bdisp|Pdec|Pinc|Ind|An|Dn, /* EAALL_L */
Abs|Imm|PCrel|Bdisp|Pdec|Pinc|Ind|An|Dn, /* EAALL_W */
Abs|Imm|PCrel|Bdisp|Pdec|Pinc|Ind|An|Dn, /* EAALL_B */
};
/* EA types */
enum
{
Dreg, /* Dn */
Areg, /* An */
AInd, /* (An) */
APdec, /* -(An) */
APinc, /* (An)+ */
ADisp, /* Displacement beyond (An) */
BXD, /* Base, Index, Displacement */
PDisp, /* Displacement beyond PC */
PXD, /* PC, Index, Displacement */
ABS, /* absolute */
IMM, /* immediate */
IREAL, /* single precision real immediate */
IEXT, /* extended precision real immediate */
IPACK, /* packed real immediate */
IDBL, /* double precision real immediate */
};
typedef struct optable Optable;
typedef struct operand Operand;
typedef struct inst Inst;
struct optable
{
ushort opcode;
ushort mask0;
ushort op2;
ushort mask1;
char opdata[2];
char *format;
};
struct operand
{
int eatype;
short ext;
union {
long immediate; /* sign-extended integer byte/word/long */
struct { /* index mode displacements */
long disp;
long outer;
};
char floater[24]; /* floating point immediates */
};
};
struct inst
{
int n; /* # bytes in instruction */
uvlong addr; /* addr of start of instruction */
ushort raw[4+12]; /* longest instruction: 24 byte packed immediate */
Operand and[2];
char *end; /* end of print buffer */
char *curr; /* current fill point in buffer */
char *errmsg;
};
/* class 0: bit field, MOVEP & immediate instructions */
static Optable t0[] = {
{ 0x003c, 0xffff, 0x0000, 0xff00, {I8}, "ORB %i,CCR" },
{ 0x007c, 0xffff, 0x0000, 0x0000, {I16}, "ORW %i,SR" },
{ 0x023c, 0xffff, 0x0000, 0xff00, {I8}, "ANDB %i,CCR" },
{ 0x027c, 0xffff, 0x0000, 0x0000, {I16}, "ANDW %i,SR" },
{ 0x0a3c, 0xffff, 0x0000, 0xff00, {I8}, "EORB %i,CCR" },
{ 0x0a7c, 0xffff, 0x0000, 0x0000, {I16}, "EORW %i,SR" },
{ 0x0cfc, 0xffff, 0x0000, 0x0000, {C16,C16}, "CAS2W R%a:R%A,R%u:R%U,(%r):(%R)"} ,
{ 0x0efc, 0xffff, 0x0000, 0x0000, {C16,C16}, "CAS2L R%a:R%A,R%u:R%U,(%r):(%R)"} ,
{ 0x06c0, 0xfff8, 0x0000, 0x0000, {0}, "RTM R%y" },
{ 0x06c8, 0xfff8, 0x0000, 0x0000, {0}, "RTM A%y" },
{ 0x0800, 0xfff8, 0x0000, 0x0000, {I16}, "BTSTL %i,R%y" },
{ 0x0840, 0xfff8, 0x0000, 0x0000, {I16}, "BCHGL %i,R%y" },
{ 0x0880, 0xfff8, 0x0000, 0x0000, {I16}, "BCLRL %i,R%y" },
{ 0x00c0, 0xffc0, 0x0000, 0x0fff, {EAC}, "CMP2B %e,%r" },
{ 0x00c0, 0xffc0, 0x0800, 0x0fff, {EAC}, "CHK2B %e,%r" },
{ 0x02c0, 0xffc0, 0x0000, 0x0fff, {EAC}, "CMP2W %e,%r" },
{ 0x02c0, 0xffc0, 0x0800, 0x0fff, {EAC}, "CHK2W %e,%r" },
{ 0x04c0, 0xffc0, 0x0000, 0x0fff, {EAC}, "CMP2L %e,%r" },
{ 0x04c0, 0xffc0, 0x0800, 0x0fff, {EAC}, "CHK2L %e,%r" },
{ 0x06c0, 0xffc0, 0x0000, 0x0000, {I16, BREAC}, "CALLM %i,%e" },
{ 0x0800, 0xffc0, 0x0000, 0x0000, {I16, EAD}, "BTSTB %i,%e" },
{ 0x0840, 0xffc0, 0x0000, 0x0000, {I16, EADA}, "BCHG %i,%e" },
{ 0x0880, 0xffc0, 0x0000, 0x0000, {I16, EADA}, "BCLR %i,%e" },
{ 0x08c0, 0xffc0, 0x0000, 0x0000, {I16, EADA}, "BSET %i,%e" },
{ 0x0ac0, 0xffc0, 0x0000, 0xfe38, {EAMA}, "CASB R%a,R%u,%e" },
{ 0x0cc0, 0xffc0, 0x0000, 0xfe38, {EAMA}, "CASW R%a,R%u,%e" },
{ 0x0ec0, 0xffc0, 0x0000, 0xfe38, {EAMA}, "CASL R%a,R%u,%e" },
{ 0x0000, 0xff00, 0x0000, 0x0000, {IV, EADA}, "OR%s %i,%e" },
{ 0x0200, 0xff00, 0x0000, 0x0000, {IV, EADA}, "AND%s %i,%e" },
{ 0x0400, 0xff00, 0x0000, 0x0000, {IV, EADA}, "SUB%s %i,%e" },
{ 0x0600, 0xff00, 0x0000, 0x0000, {IV, EADA}, "ADD%s %i,%e" },
{ 0x0a00, 0xff00, 0x0000, 0x0000, {IV, EADA}, "EOR%s %i,%e" },
{ 0x0c00, 0xff00, 0x0000, 0x0000, {IV, EAD}, "CMP%s %i,%e" },
{ 0x0e00, 0xff00, 0x0000, 0x0800, {EAMA}, "MOVES%s %e,%r" },
{ 0x0e00, 0xff00, 0x0800, 0x0800, {EAMA}, "MOVES%s %r,%e" },
{ 0x0108, 0xf1f8, 0x0000, 0x0000, {I16}, "MOVEPW (%i,A%y),R%x" },
{ 0x0148, 0xf1f8, 0x0000, 0x0000, {I16}, "MOVEPL (%i,A%y),R%x" },
{ 0x0188, 0xf1f8, 0x0000, 0x0000, {I16}, "MOVEPW R%x,(%i,A%y)" },
{ 0x01c8, 0xf1f8, 0x0000, 0x0000, {I16}, "MOVEPL R%x,(%i,A%y)" },
{ 0x0100, 0xf1f8, 0x0000, 0x0000, {0}, "BTSTL R%x,R%y" },
{ 0x0140, 0xf1f8, 0x0000, 0x0000, {0}, "BCHGL R%x,R%y" },
{ 0x0180, 0xf1f8, 0x0000, 0x0000, {0}, "BCLRL R%x,R%y" },
{ 0x01c0, 0xf1f8, 0x0000, 0x0000, {0}, "BSET R%x,R%y" },
{ 0x0100, 0xf1c0, 0x0000, 0x0000, {EAM_B}, "BTSTB R%x,%e" },
{ 0x0140, 0xf1c0, 0x0000, 0x0000, {EAMA}, "BCHG R%x,%e" },
{ 0x0180, 0xf1c0, 0x0000, 0x0000, {EAMA}, "BCLR R%x,%e" },
{ 0x01c0, 0xf1c0, 0x0000, 0x0000, {EAMA}, "BSET R%x,%e" },
{ 0,0,0,0,{0},0 },
};
/* class 1: move byte */
static Optable t1[] = {
{ 0x1000, 0xf000, 0x0000, 0x0000, {EAALL_B,EADDA},"MOVB %e,%E" },
{ 0,0,0,0,{0},0 },
};
/* class 2: move long */
static Optable t2[] = {
{ 0x2040, 0xf1c0, 0x0000, 0x0000, {EAALL_L}, "MOVL %e,A%x" },
{ 0x2000, 0xf000, 0x0000, 0x0000, {EAALL_L,EADDA},"MOVL %e,%E" },
{ 0,0,0,0,{0},0 },
};
/* class 3: move word */
static Optable t3[] = {
{ 0x3040, 0xf1c0, 0x0000, 0x0000, {EAALL_W}, "MOVW %e,A%x" },
{ 0x3000, 0xf000, 0x0000, 0x0000, {EAALL_W,EADDA},"MOVW %e,%E" },
{ 0,0,0,0,{0},0 },
};
/* class 4: miscellaneous */
static Optable t4[] = {
{ 0x4e75, 0xffff, 0x0000, 0x0000, {STACK}, "RTS" },
{ 0x4e77, 0xffff, 0x0000, 0x0000, {STACK}, "RTR" },
{ 0x4afc, 0xffff, 0x0000, 0x0000, {0}, "ILLEGAL" },
{ 0x4e71, 0xffff, 0x0000, 0x0000, {0}, "NOP" },
{ 0x4e74, 0xffff, 0x0000, 0x0000, {I16, STACK}, "RTD %i" },
{ 0x4e76, 0xffff, 0x0000, 0x0000, {0}, "TRAPV" },
{ 0x4e70, 0xffff, 0x0000, 0x0000, {0}, "RESET" },
{ 0x4e72, 0xffff, 0x0000, 0x0000, {I16}, "STOP %i" },
{ 0x4e73, 0xffff, 0x0000, 0x0000, {0}, "RTE" },
{ 0x4e7a, 0xffff, 0x0000, 0x0000, {I16}, "MOVEL %N,%r" },
{ 0x4e7b, 0xffff, 0x0000, 0x0000, {I16}, "MOVEL %r,%N" },
{ 0x4808, 0xfff8, 0x0000, 0x0000, {I32}, "LINKL A%y,%i" },
{ 0x4840, 0xfff8, 0x0000, 0x0000, {0}, "SWAPW R%y" },
{ 0x4848, 0xfff8, 0x0000, 0x0000, {0}, "BKPT #%y" },
{ 0x4880, 0xfff8, 0x0000, 0x0000, {0}, "EXTW R%y" },
{ 0x48C0, 0xfff8, 0x0000, 0x0000, {0}, "EXTL R%y" },
{ 0x49C0, 0xfff8, 0x0000, 0x0000, {0}, "EXTBL R%y" },
{ 0x4e50, 0xfff8, 0x0000, 0x0000, {I16}, "LINKW A%y,%i" },
{ 0x4e58, 0xfff8, 0x0000, 0x0000, {0}, "UNLK A%y" },
{ 0x4e60, 0xfff8, 0x0000, 0x0000, {0}, "MOVEL (A%y),USP" },
{ 0x4e68, 0xfff8, 0x0000, 0x0000, {0}, "MOVEL USP,(A%y)" },
{ 0x4e40, 0xfff0, 0x0000, 0x0000, {0}, "SYS %f" },
{ 0x40c0, 0xffc0, 0x0000, 0x0000, {EADA}, "MOVW SR,%e" },
{ 0x42c0, 0xffc0, 0x0000, 0x0000, {EADA}, "MOVW CCR,%e" },
{ 0x44c0, 0xffc0, 0x0000, 0x0000, {EADI_W}, "MOVW %e,CCR" },
{ 0x46c0, 0xffc0, 0x0000, 0x0000, {EADI_W}, "MOVW %e,SR" },
{ 0x4800, 0xffc0, 0x0000, 0x0000, {EADA}, "NBCDB %e" },
{ 0x4840, 0xffc0, 0x0000, 0x0000, {EAC}, "PEA %e" },
{ 0x4880, 0xffc0, 0x0000, 0x0000, {I16, EACAPD},"MOVEMW %i,%e" },
{ 0x48c0, 0xffc0, 0x0000, 0x0000, {I16, EACAPD},"MOVEML %i,%e" },
{ 0x4ac0, 0xffc0, 0x0000, 0x0000, {EADA}, "TAS %e" },
{ 0x4a00, 0xffc0, 0x0000, 0x0000, {EAD}, "TSTB %e" },
{ 0x4c00, 0xffc0, 0x0000, 0x8ff8, {EADI_L}, "MULUL %e,%r" },
{ 0x4c00, 0xffc0, 0x0400, 0x8ff8, {EADI_L}, "MULUL %e,R%a:%r" },
{ 0x4c00, 0xffc0, 0x0800, 0x8ff8, {EADI_L}, "MULSL %e,%r" },
{ 0x4c00, 0xffc0, 0x0c00, 0x8ff8, {EADI_L}, "MULSL %e,R%a:%r" },
{ 0x4c40, 0xffc0, 0x0000, 0x8ff8, {EADI_L}, "DIVUL %e,%j" },
{ 0x4c40, 0xffc0, 0x0400, 0x8ff8, {EADI_L}, "DIVUD %e,%r:R%a" },
{ 0x4c40, 0xffc0, 0x0800, 0x8ff8, {EADI_L}, "DIVSL %e,%j" },
{ 0x4c40, 0xffc0, 0x0c00, 0x8ff8, {EADI_L}, "DIVSD %e,%r:R%a" },
{ 0x4c80, 0xffc0, 0x0000, 0x0000, {I16, EACPI}, "MOVEMW %1,%i" },
{ 0x4cc0, 0xffc0, 0x0000, 0x0000, {I16, EACPI}, "MOVEML %1,%i" },
{ 0x4e80, 0xffc0, 0x0000, 0x0000, {BREAC}, "JSR %e" },
{ 0x4ec0, 0xffc0, 0x0000, 0x0000, {BREAC}, "JMP %e" },
{ 0x4000, 0xff00, 0x0000, 0x0000, {EADA}, "NEGX%s %e" },
{ 0x4200, 0xff00, 0x0000, 0x0000, {EADA}, "CLR%s %e" },
{ 0x4400, 0xff00, 0x0000, 0x0000, {EADA}, "NEG%s %e" },
{ 0x4600, 0xff00, 0x0000, 0x0000, {EADA}, "NOT%s %e" },
{ 0x4a00, 0xff00, 0x0000, 0x0000, {EAALL}, "TST%s %e" },
{ 0x4180, 0xf1c0, 0x0000, 0x0000, {EADI_W}, "CHKW %e,R%x" },
{ 0x41c0, 0xf1c0, 0x0000, 0x0000, {EAC}, "LEA %e,A%x" },
{ 0x4100, 0xf1c0, 0x0000, 0x0000, {EADI_L}, "CHKL %e,R%x" },
{ 0,0,0,0,{0},0 },
};
/* class 5: miscellaneous quick, branch & trap instructions */
static Optable t5[] = {
{ 0x5000, 0xf1c0, 0x0000, 0x0000, {EADA}, "ADDB $Q#%q,%e" },
{ 0x5100, 0xf1c0, 0x0000, 0x0000, {EADA}, "SUBB $Q#%q,%e" },
{ 0x50c8, 0xf1f8, 0x0000, 0x0000, {BR16}, "DB%c R%y,%t" },
{ 0x51c8, 0xf1f8, 0x0000, 0x0000, {BR16}, "DB%c R%y,%t" },
{ 0x5000, 0xf1c0, 0x0000, 0x0000, {EAA}, "ADDB $Q#%q,%e" },
{ 0x5040, 0xf1c0, 0x0000, 0x0000, {EAA}, "ADDW $Q#%q,%e" },
{ 0x5080, 0xf1c0, 0x0000, 0x0000, {EAA}, "ADDL $Q#%q,%e" },
{ 0x5100, 0xf1c0, 0x0000, 0x0000, {EAA}, "SUBB $Q#%q,%e" },
{ 0x5140, 0xf1c0, 0x0000, 0x0000, {EAA}, "SUBW $Q#%q,%e" },
{ 0x5180, 0xf1c0, 0x0000, 0x0000, {EAA}, "SUBL $Q#%q,%e" },
{ 0x50fa, 0xf0ff, 0x0000, 0x0000, {I16}, "TRAP%cW %i" },
{ 0x50fb, 0xf0ff, 0x0000, 0x0000, {I32}, "TRAP%cL %i" },
{ 0x50fc, 0xf0ff, 0x0000, 0x0000, {0}, "TRAP%c" },
{ 0x50c0, 0xf0c0, 0x0000, 0x0000, {EADA}, "S%c %e" },
{ 0,0,0,0,{0},0 },
};
/* class 6: branch instructions */
static Optable t6[] = {
{ 0x6000, 0xff00, 0x0000, 0x0000, {BR8}, "BRA %t" },
{ 0x6100, 0xff00, 0x0000, 0x0000, {BR8}, "BSR %t" },
{ 0x6000, 0xf000, 0x0000, 0x0000, {BR8}, "B%c %t" },
{ 0,0,0,0,{0},0 },
};
/* class 7: move quick */
static Optable t7[] = {
{ 0x7000, 0xf100, 0x0000, 0x0000, {OP8}, "MOVL $Q%i,R%x" },
{ 0,0,0,0,{0},0 },
};
/* class 8: BCD operations, DIV, and OR instructions */
static Optable t8[] = {
{ 0x8100, 0xf1f8, 0x0000, 0x0000, {0}, "SBCDB R%y,R%x" },
{ 0x8108, 0xf1f8, 0x0000, 0x0000, {0}, "SBCDB -(A%y),-(A%x)" },
{ 0x8140, 0xf1f8, 0x0000, 0x0000, {I16}, "PACK R%y,R%x,%i" },
{ 0x8148, 0xf1f8, 0x0000, 0x0000, {I16}, "PACK -(A%y),-(A%x),%i" },
{ 0x8180, 0xf1f8, 0x0000, 0x0000, {I16}, "UNPK R%y,R%x,%i" },
{ 0x8188, 0xf1f8, 0x0000, 0x0000, {I16}, "UNPK -(A%y),-(A%x),%i" },
{ 0x80c0, 0xf1c0, 0x0000, 0x0000, {EADI_W}, "DIVUW %e,R%x" },
{ 0x81c0, 0xf1c0, 0x0000, 0x0000, {EADI_W}, "DIVSW %e,R%x" },
{ 0x8000, 0xf100, 0x0000, 0x0000, {EADI}, "OR%s %e,R%x" },
{ 0x8100, 0xf100, 0x0000, 0x0000, {EAMA}, "OR%s R%x,%e" },
{ 0,0,0,0,{0},0 },
};
/* class 9: subtract instruction */
static Optable t9[] = {
{ 0x90c0, 0xf1c0, 0x0000, 0x0000, {EAALL_W}, "SUBW %e,A%x" },
{ 0x91c0, 0xf1c0, 0x0000, 0x0000, {EAALL_L}, "SUBL %e,A%x" },
{ 0x9100, 0xf138, 0x0000, 0x0000, {0}, "SUBX%s R%y,R%x" },
{ 0x9108, 0xf138, 0x0000, 0x0000, {0}, "SUBX%s -(A%y),-(A%x)" },
{ 0x9000, 0xf100, 0x0000, 0x0000, {EAALL}, "SUB%s %e,R%x" },
{ 0x9100, 0xf100, 0x0000, 0x0000, {EAMA}, "SUB%s R%x,%e" },
{ 0,0,0,0,{0},0 },
};
/* class b: CMP & EOR */
static Optable tb[] = {
{ 0xb000, 0xf1c0, 0x0000, 0x0000, {EADI}, "CMPB R%x,%e" },
{ 0xb040, 0xf1c0, 0x0000, 0x0000, {EAALL_W}, "CMPW R%x,%e" },
{ 0xb080, 0xf1c0, 0x0000, 0x0000, {EAALL_L}, "CMPL R%x,%e" },
{ 0xb0c0, 0xf1c0, 0x0000, 0x0000, {EAALL_W}, "CMPW A%x,%e" },
{ 0xb1c0, 0xf1c0, 0x0000, 0x0000, {EAALL_L}, "CMPL A%x,%e" },
{ 0xb108, 0xf138, 0x0000, 0x0000, {0}, "CMP%s (A%y)+,(A%x)+" },
{ 0xb100, 0xf100, 0x0000, 0x0000, {EADA}, "EOR%s %e,R%x" },
{ 0,0,0,0,{0},0 },
};
/* class c: AND, MUL, BCD & Exchange */
static Optable tc[] = {
{ 0xc100, 0xf1f8, 0x0000, 0x0000, {0}, "ABCDB R%y,R%x" },
{ 0xc108, 0xf1f8, 0x0000, 0x0000, {0}, "ABCDB -(A%y),-(A%x)" },
{ 0xc140, 0xf1f8, 0x0000, 0x0000, {0}, "EXG R%x,R%y" },
{ 0xc148, 0xf1f8, 0x0000, 0x0000, {0}, "EXG A%x,A%y" },
{ 0xc188, 0xf1f8, 0x0000, 0x0000, {0}, "EXG R%x,A%y" },
{ 0xc0c0, 0xf1c0, 0x0000, 0x0000, {EADI_W}, "MULUW %e,R%x" },
{ 0xc1c0, 0xf1c0, 0x0000, 0x0000, {EADI_W}, "MULSW %e,R%x" },
{ 0xc000, 0xf100, 0x0000, 0x0000, {EADI}, "AND%s %e,R%x" },
{ 0xc100, 0xf100, 0x0000, 0x0000, {EAMA}, "AND%s R%x,%e" },
{ 0,0,0,0,{0},0 },
};
/* class d: addition */
static Optable td[] = {
{ 0xd000, 0xf1c0, 0x0000, 0x0000, {EADI}, "ADDB %e,R%x" },
{ 0xd0c0, 0xf1c0, 0x0000, 0x0000, {EAALL_W}, "ADDW %e,A%x" },
{ 0xd1c0, 0xf1c0, 0x0000, 0x0000, {EAALL_L}, "ADDL %e,A%x" },
{ 0xd100, 0xf138, 0x0000, 0x0000, {0}, "ADDX%s R%y,R%x" },
{ 0xd108, 0xf138, 0x0000, 0x0000, {0}, "ADDX%s -(A%y),-(A%x)" },
{ 0xd000, 0xf100, 0x0000, 0x0000, {EAALL}, "ADD%s %e,R%x" },
{ 0xd100, 0xf100, 0x0000, 0x0000, {EAMA}, "ADD%s R%x,%e" },
{ 0,0,0,0,{0},0 },
};
/* class e: shift, rotate, bit field operations */
static Optable te[] = {
{ 0xe8c0, 0xffc0, 0x0820, 0xfe38, {EACD}, "BFTST %e{R%u:R%a}" },
{ 0xe8c0, 0xffc0, 0x0800, 0xfe20, {EACD}, "BFTST %e{R%u:%w}" },
{ 0xe8c0, 0xffc0, 0x0020, 0xf838, {EACD}, "BFTST %e{%o:R%a}" },
{ 0xe8c0, 0xffc0, 0x0000, 0xf820, {EACD}, "BFTST %e{%o:%w}" },
{ 0xe9c0, 0xffc0, 0x0820, 0x8e38, {EACD}, "BFEXTU %e{R%u:R%a},%r" },
{ 0xe9c0, 0xffc0, 0x0800, 0x8e20, {EACD}, "BFEXTU %e{R%u:%w},%r" },
{ 0xe9c0, 0xffc0, 0x0020, 0x8838, {EACD}, "BFEXTU %e{%o:R%a},%r" },
{ 0xe9c0, 0xffc0, 0x0000, 0x8820, {EACD}, "BFEXTU %e{%o:%w},%r" },
{ 0xeac0, 0xffc0, 0x0820, 0xfe38, {EACAD}, "BFCHG %e{R%u:R%a}" },
{ 0xeac0, 0xffc0, 0x0800, 0xfe20, {EACAD}, "BFCHG %e{R%u:%w}" },
{ 0xeac0, 0xffc0, 0x0020, 0xf838, {EACAD}, "BFCHG %e{%o:R%a}" },
{ 0xeac0, 0xffc0, 0x0000, 0xf820, {EACAD}, "BFCHG %e{%o:%w}" },
{ 0xebc0, 0xffc0, 0x0820, 0x8e38, {EACD}, "BFEXTS %e{R%u:R%a},%r" },
{ 0xebc0, 0xffc0, 0x0800, 0x8e20, {EACD}, "BFEXTS %e{R%u:%w},%r" },
{ 0xebc0, 0xffc0, 0x0020, 0x8838, {EACD}, "BFEXTS %e{%o:R%a},%r" },
{ 0xebc0, 0xffc0, 0x0000, 0x8820, {EACD}, "BFEXTS %e{%o:%w},%r" },
{ 0xecc0, 0xffc0, 0x0820, 0xfe38, {EACAD}, "BFCLR %e{R%u:R%a}" },
{ 0xecc0, 0xffc0, 0x0800, 0xfe20, {EACAD}, "BFCLR %e{R%u:%w}" },
{ 0xecc0, 0xffc0, 0x0020, 0xf838, {EACAD}, "BFCLR %e{%o:R%a}" },
{ 0xecc0, 0xffc0, 0x0000, 0xf820, {EACAD}, "BFCLR %e{%o:%w}" },
{ 0xedc0, 0xffc0, 0x0820, 0x8e38, {EACAD}, "BFFFO %e{R%u:R%a},%r" },
{ 0xedc0, 0xffc0, 0x0800, 0x8e20, {EACAD}, "BFFFO %e{R%u:%w},%r" },
{ 0xedc0, 0xffc0, 0x0020, 0x8838, {EACAD}, "BFFFO %e{%o:R%a},%r" },
{ 0xedc0, 0xffc0, 0x0000, 0x8820, {EACAD}, "BFFFO %e{%o:%w},%r" },
{ 0xeec0, 0xffc0, 0x0820, 0xfe38, {EACAD}, "BFSET %e{R%u:R%a}" },
{ 0xeec0, 0xffc0, 0x0800, 0xfe20, {EACAD}, "BFSET %e{R%u:%w}" },
{ 0xeec0, 0xffc0, 0x0020, 0xf838, {EACAD}, "BFSET %e{%o:R%a}" },
{ 0xeec0, 0xffc0, 0x0000, 0xf820, {EACAD}, "BFSET %e{%o:%w}" },
{ 0xefc0, 0xffc0, 0x0820, 0x8e38, {EACAD}, "BFINS %r,%e{R%u:R%a}" },
{ 0xefc0, 0xffc0, 0x0800, 0x8e20, {EACAD}, "BFINS %r,%e{R%u:%w}" },
{ 0xefc0, 0xffc0, 0x0020, 0x8838, {EACAD}, "BFINS %r,%e{%o:R%a}" },
{ 0xefc0, 0xffc0, 0x0000, 0x8820, {EACAD}, "BFINS %r,%e{%o:%w}" },
{ 0xe0c0, 0xfec0, 0x0000, 0x0000, {EAMA}, "AS%dW %e" },
{ 0xe2c0, 0xfec0, 0x0000, 0x0000, {EAMA}, "LS%dW %e" },
{ 0xe4c0, 0xfec0, 0x0000, 0x0000, {EAMA}, "ROX%dW %e" },
{ 0xe6c0, 0xfec0, 0x0000, 0x0000, {EAMA}, "RO%dW %e" },
{ 0xe000, 0xf038, 0x0000, 0x0000, {0}, "AS%d%s #%q,R%y" },
{ 0xe008, 0xf038, 0x0000, 0x0000, {0}, "LS%d%s #%q,R%y" },
{ 0xe010, 0xf038, 0x0000, 0x0000, {0}, "ROX%d%s #%q,R%y" },
{ 0xe018, 0xf038, 0x0000, 0x0000, {0}, "RO%d%s #%q,R%y" },
{ 0xe020, 0xf038, 0x0000, 0x0000, {0}, "AS%d%s R%x,R%y" },
{ 0xe028, 0xf038, 0x0000, 0x0000, {0}, "LS%d%s R%x,R%y" },
{ 0xe030, 0xf038, 0x0000, 0x0000, {0}, "ROX%d%s R%x,R%y" },
{ 0xe038, 0xf038, 0x0000, 0x0000, {0}, "RO%d%s R%x,R%y" },
{ 0,0,0,0,{0},0 },
};
/* class f: coprocessor and mmu instructions */
static Optable tf[] = {
{ 0xf280, 0xffff, 0x0000, 0xffff, {0}, "FNOP" },
{ 0xf200, 0xffff, 0x5c00, 0xfc00, {0}, "FMOVECRX %k,F%D" },
{ 0xf27a, 0xffff, 0x0000, 0xffc0, {I16}, "FTRAP%P %i" },
{ 0xf27b, 0xffff, 0x0000, 0xffc0, {I32}, "FTRAP%P %i" },
{ 0xf27c, 0xffff, 0x0000, 0xffc0, {0}, "FTRAP%P" },
{ 0xf248, 0xfff8, 0x0000, 0xffc0, {BR16}, "FDB%P R%y,%t" },
{ 0xf620, 0xfff8, 0x8000, 0x8fff, {0}, "MOVE16 (A%y)+,(%r)+" },
{ 0xf500, 0xfff8, 0x0000, 0x0000, {0}, "PFLUSHN (A%y)" },
{ 0xf508, 0xfff8, 0x0000, 0x0000, {0}, "PFLUSH (A%y)" },
{ 0xf510, 0xfff8, 0x0000, 0x0000, {0}, "PFLUSHAN" },
{ 0xf518, 0xfff8, 0x0000, 0x0000, {0}, "PFLUSHA" },
{ 0xf548, 0xfff8, 0x0000, 0x0000, {0}, "PTESTW (A%y)" },
{ 0xf568, 0xfff8, 0x0000, 0x0000, {0}, "PTESTR (A%y)" },
{ 0xf600, 0xfff8, 0x0000, 0x0000, {I32}, "MOVE16 (A%y)+,$%i" },
{ 0xf608, 0xfff8, 0x0000, 0x0000, {I32}, "MOVE16 $%i,(A%y)-" },
{ 0xf610, 0xfff8, 0x0000, 0x0000, {I32}, "MOVE16 (A%y),$%i" },
{ 0xf618, 0xfff8, 0x0000, 0x0000, {I32}, "MOVE16 $%i,(A%y)" },
{ 0xf000, 0xffc0, 0x0800, 0xffff, {EACA}, "PMOVE %e,TT0" },
{ 0xf000, 0xffc0, 0x0900, 0xffff, {EACA}, "PMOVEFD %e,TT0" },
{ 0xf000, 0xffc0, 0x0a00, 0xffff, {EACA}, "PMOVE TT0,%e" },
{ 0xf000, 0xffc0, 0x0b00, 0xffff, {EACA}, "PMOVEFD TT0,%e" },
{ 0xf000, 0xffc0, 0x0c00, 0xffff, {EACA}, "PMOVE %e,TT1" },
{ 0xf000, 0xffc0, 0x0d00, 0xffff, {EACA}, "PMOVEFD %e,TT1" },
{ 0xf000, 0xffc0, 0x0e00, 0xffff, {EACA}, "PMOVE TT1,%e" },
{ 0xf000, 0xffc0, 0x0f00, 0xffff, {EACA}, "PMOVEFD TT1,%e" },
{ 0xf000, 0xffc0, 0x2400, 0xffff, {0}, "PFLUSHA" },
{ 0xf000, 0xffc0, 0x2800, 0xffff, {EACA}, "PVALID VAL,%e" },
{ 0xf000, 0xffc0, 0x6000, 0xffff, {EACA}, "PMOVE %e,MMUSR" },
{ 0xf000, 0xffc0, 0x6200, 0xffff, {EACA}, "PMOVE MMUSR,%e" },
{ 0xf000, 0xffc0, 0x2800, 0xfff8, {EACA}, "PVALID A%a,%e" },
{ 0xf000, 0xffc0, 0x2000, 0xffe0, {EACA}, "PLOADW %L,%e" },
{ 0xf000, 0xffc0, 0x2200, 0xffe0, {EACA}, "PLOADR %L,%e" },
{ 0xf000, 0xffc0, 0x8000, 0xffe0, {EACA}, "PTESTW %L,%e,#0" },
{ 0xf000, 0xffc0, 0x8200, 0xffe0, {EACA}, "PTESTR %L,%e,#0" },
{ 0xf000, 0xffc0, 0x3000, 0xfe00, {0}, "PFLUSH %L,#%I" },
{ 0xf000, 0xffc0, 0x3800, 0xfe00, {EACA}, "PFLUSH %L,#%I,%e" },
{ 0xf000, 0xffc0, 0x8000, 0xe300, {EACA}, "PTESTW %L,%e,#%Z" },
{ 0xf000, 0xffc0, 0x8100, 0xe300, {EACA}, "PTESTW %L,%e,#%Z,A%h" },
{ 0xf000, 0xffc0, 0x8200, 0xe300, {EACA}, "PTESTR %L,%e,#%Z" },
{ 0xf000, 0xffc0, 0x8300, 0xe300, {EACA}, "PTESTR %L,%e,#%Z,A%h" },
{ 0xf000, 0xffc0, 0x4000, 0xc3ff, {EACA}, "PMOVE %e,%H" },
{ 0xf000, 0xffc0, 0x4100, 0xc3ff, {EACA}, "PMOVEFD %e,%H" },
{ 0xf000, 0xffc0, 0x4200, 0xc3ff, {EACA}, "PMOVE %H,%e" },
/* floating point (coprocessor 1)*/
{ 0xf200, 0xffc0, 0x8400, 0xffff, {EAALL_L}, "FMOVEL %e,FPIAR" },
{ 0xf200, 0xffc0, 0x8800, 0xffff, {EADI_L}, "FMOVEL %e,FPSR" },
{ 0xf200, 0xffc0, 0x9000, 0xffff, {EADI_L}, "FMOVEL %e,FPCR" },
{ 0xf200, 0xffc0, 0xa400, 0xffff, {EAA}, "FMOVEL FPIAR,%e" },
{ 0xf200, 0xffc0, 0xa800, 0xffff, {EADA}, "FMOVEL FPSR,%e" },
{ 0xf200, 0xffc0, 0xb000, 0xffff, {EADA}, "FMOVEL FPCR,%e" },
{ 0xf240, 0xffc0, 0x0000, 0xffc0, {EADA}, "FS%P %e" },
{ 0xf200, 0xffc0, 0xd000, 0xff00, {EACPI}, "FMOVEMX %e,%m" },
{ 0xf200, 0xffc0, 0xd800, 0xff00, {EACPI}, "FMOVEMX %e,R%K" },
{ 0xf200, 0xffc0, 0xe000, 0xff00, {EAPI}, "FMOVEMX %m,-(A%y)" },
{ 0xf200, 0xffc0, 0xe800, 0xff00, {EAPI}, "FMOVEMX R%K,-(A%y)" },
{ 0xf200, 0xffc0, 0xf000, 0xff00, {EACAPD}, "FMOVEMX %m,%e" },
{ 0xf200, 0xffc0, 0xf800, 0xff00, {EACAPD}, "FMOVEMX R%K,%e" },
{ 0xf200, 0xffc0, 0x6800, 0xfc00, {EAMA}, "FMOVEX F%D,%e" },
{ 0xf200, 0xffc0, 0x6c00, 0xfc00, {EAMA}, "FMOVEP F%D,%e,{%k}" },
{ 0xf200, 0xffc0, 0x7400, 0xfc00, {EAMA}, "FMOVED F%D,%e" },
{ 0xf200, 0xffc0, 0x7c00, 0xfc00, {EAMA}, "FMOVEP F%D,%e,{R%K}" },
{ 0xf200, 0xffc0, 0x8000, 0xe3ff, {EAM}, "FMOVEML #%B,%e" },
{ 0xf200, 0xffc0, 0xa000, 0xe3ff, {EAMA}, "FMOVEML %e,#%B" },
{ 0xf200, 0xffc0, 0x0000, 0xe07f, {0}, "FMOVE F%B,F%D" },
{ 0xf200, 0xffc0, 0x0001, 0xe07f, {0}, "FINTX %F" },
{ 0xf200, 0xffc0, 0x0002, 0xe07f, {0}, "FSINHX %F" },
{ 0xf200, 0xffc0, 0x0003, 0xe07f, {0}, "FINTRZ %F" },
{ 0xf200, 0xffc0, 0x0004, 0xe07f, {0}, "FSQRTX %F" },
{ 0xf200, 0xffc0, 0x0006, 0xe07f, {0}, "FLOGNP1X %F" },
{ 0xf200, 0xffc0, 0x0009, 0xe07f, {0}, "FTANHX %F" },
{ 0xf200, 0xffc0, 0x000a, 0xe07f, {0}, "FATANX %F" },
{ 0xf200, 0xffc0, 0x000c, 0xe07f, {0}, "FASINX %F" },
{ 0xf200, 0xffc0, 0x000d, 0xe07f, {0}, "FATANHX %F" },
{ 0xf200, 0xffc0, 0x000e, 0xe07f, {0}, "FSINX %F" },
{ 0xf200, 0xffc0, 0x000f, 0xe07f, {0}, "FTANX %F" },
{ 0xf200, 0xffc0, 0x0010, 0xe07f, {0}, "FETOXX %F" },
{ 0xf200, 0xffc0, 0x0011, 0xe07f, {0}, "FTWOTOXX %F" },
{ 0xf200, 0xffc0, 0x0012, 0xe07f, {0}, "FTENTOXX %F" },
{ 0xf200, 0xffc0, 0x0014, 0xe07f, {0}, "FLOGNX %F" },
{ 0xf200, 0xffc0, 0x0015, 0xe07f, {0}, "FLOG10X %F" },
{ 0xf200, 0xffc0, 0x0016, 0xe07f, {0}, "FLOG2X %F" },
{ 0xf200, 0xffc0, 0x0018, 0xe07f, {0}, "FABSX %F" },
{ 0xf200, 0xffc0, 0x0019, 0xe07f, {0}, "FCOSHX %F" },
{ 0xf200, 0xffc0, 0x001a, 0xe07f, {0}, "FNEGX %F" },
{ 0xf200, 0xffc0, 0x001c, 0xe07f, {0}, "FACOSX %F" },
{ 0xf200, 0xffc0, 0x001d, 0xe07f, {0}, "FCOSX %F" },
{ 0xf200, 0xffc0, 0x001e, 0xe07f, {0}, "FGETEXPX %F" },
{ 0xf200, 0xffc0, 0x001f, 0xe07f, {0}, "FGETMANX %F" },
{ 0xf200, 0xffc0, 0x0020, 0xe07f, {0}, "FDIVX F%B,F%D" },
{ 0xf200, 0xffc0, 0x0021, 0xe07f, {0}, "FMODX F%B,F%D" },
{ 0xf200, 0xffc0, 0x0022, 0xe07f, {0}, "FADDX F%B,F%D" },
{ 0xf200, 0xffc0, 0x0023, 0xe07f, {0}, "FMULX F%B,F%D" },
{ 0xf200, 0xffc0, 0x0024, 0xe07f, {0}, "FSGLDIVX F%B,F%D" },
{ 0xf200, 0xffc0, 0x0025, 0xe07f, {0}, "FREMX F%B,F%D" },
{ 0xf200, 0xffc0, 0x0026, 0xe07f, {0}, "FSCALEX F%B,F%D" },
{ 0xf200, 0xffc0, 0x0027, 0xe07f, {0}, "FSGLMULX F%B,F%D" },
{ 0xf200, 0xffc0, 0x0028, 0xe07f, {0}, "FSUBX F%B,F%D" },
{ 0xf200, 0xffc0, 0x0038, 0xe07f, {0}, "FCMPX F%B,F%D" },
{ 0xf200, 0xffc0, 0x003a, 0xe07f, {0}, "FTSTX F%B" },
{ 0xf200, 0xffc0, 0x0040, 0xe07f, {0}, "FSMOVE F%B,F%D" },
{ 0xf200, 0xffc0, 0x0041, 0xe07f, {0}, "FSSQRTX %F"},
{ 0xf200, 0xffc0, 0x0044, 0xe07f, {0}, "FDMOVE F%B,F%D" },
{ 0xf200, 0xffc0, 0x0045, 0xe07f, {0}, "FDSQRTX %F" },
{ 0xf200, 0xffc0, 0x0058, 0xe07f, {0}, "FSABSX %F" },
{ 0xf200, 0xffc0, 0x005a, 0xe07f, {0}, "FSNEGX %F" },
{ 0xf200, 0xffc0, 0x005c, 0xe07f, {0}, "FDABSX %F" },
{ 0xf200, 0xffc0, 0x005e, 0xe07f, {0}, "FDNEGX %F" },
{ 0xf200, 0xffc0, 0x0060, 0xe07f, {0}, "FSDIVX F%B,F%D" },
{ 0xf200, 0xffc0, 0x0062, 0xe07f, {0}, "FSADDX F%B,F%D" },
{ 0xf200, 0xffc0, 0x0063, 0xe07f, {0}, "FSMULX F%B,F%D" },
{ 0xf200, 0xffc0, 0x0064, 0xe07f, {0}, "FDDIVX F%B,F%D" },
{ 0xf200, 0xffc0, 0x0066, 0xe07f, {0}, "FDADDX F%B,F%D" },
{ 0xf200, 0xffc0, 0x0067, 0xe07f, {0}, "FDMULX F%B,F%D" },
{ 0xf200, 0xffc0, 0x0068, 0xe07f, {0}, "FSSUBX F%B,F%D" },
{ 0xf200, 0xffc0, 0x006c, 0xe07f, {0}, "FDSUBX F%B,F%D" },
{ 0xf200, 0xffc0, 0x4000, 0xe07f, {EAFLT}, "FMOVE%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4001, 0xe07f, {EAFLT}, "FINT%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4002, 0xe07f, {EAFLT}, "FSINH%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4003, 0xe07f, {EAFLT}, "FINTRZ%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4004, 0xe07f, {EAFLT}, "FSQRT%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4006, 0xe07f, {EAFLT}, "FLOGNP1%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4009, 0xe07f, {EAFLT}, "FTANH%S %e,F%D" },
{ 0xf200, 0xffc0, 0x400a, 0xe07f, {EAFLT}, "FATAN%S %e,F%D" },
{ 0xf200, 0xffc0, 0x400c, 0xe07f, {EAFLT}, "FASIN%S %e,F%D" },
{ 0xf200, 0xffc0, 0x400d, 0xe07f, {EAFLT}, "FATANH%S %e,F%D" },
{ 0xf200, 0xffc0, 0x400e, 0xe07f, {EAFLT}, "FSIN%S %e,F%D" },
{ 0xf200, 0xffc0, 0x400f, 0xe07f, {EAFLT}, "FTAN%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4010, 0xe07f, {EAFLT}, "FETOX%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4011, 0xe07f, {EAFLT}, "FTWOTOX%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4012, 0xe07f, {EAFLT}, "FTENTOX%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4014, 0xe07f, {EAFLT}, "FLOGN%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4015, 0xe07f, {EAFLT}, "FLOG10%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4016, 0xe07f, {EAFLT}, "FLOG2%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4018, 0xe07f, {EAFLT}, "FABS%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4019, 0xe07f, {EAFLT}, "FCOSH%S %e,F%D" },
{ 0xf200, 0xffc0, 0x401a, 0xe07f, {EAFLT}, "FNEG%S %e,F%D" },
{ 0xf200, 0xffc0, 0x401c, 0xe07f, {EAFLT}, "FACOS%S %e,F%D" },
{ 0xf200, 0xffc0, 0x401d, 0xe07f, {EAFLT}, "FCOS%S %e,F%D" },
{ 0xf200, 0xffc0, 0x401e, 0xe07f, {EAFLT}, "FGETEXP%S %e,F%D" },
{ 0xf200, 0xffc0, 0x401f, 0xe07f, {EAFLT}, "FGETMAN%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4020, 0xe07f, {EAFLT}, "FDIV%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4021, 0xe07f, {EAFLT}, "FMOD%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4022, 0xe07f, {EAFLT}, "FADD%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4023, 0xe07f, {EAFLT}, "FMUL%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4024, 0xe07f, {EAFLT}, "FSGLDIV%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4025, 0xe07f, {EAFLT}, "FREM%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4026, 0xe07f, {EAFLT}, "FSCALE%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4027, 0xe07f, {EAFLT}, "FSGLMUL%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4028, 0xe07f, {EAFLT}, "FSUB%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4038, 0xe07f, {EAFLT}, "FCMP%S %e,F%D" },
{ 0xf200, 0xffc0, 0x403a, 0xe07f, {EAFLT}, "FTST%S %e" },
{ 0xf200, 0xffc0, 0x4040, 0xe07f, {EAFLT}, "FSMOVE%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4041, 0xe07f, {EAFLT}, "FSSQRT%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4044, 0xe07f, {EAFLT}, "FDMOVE%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4045, 0xe07f, {EAFLT}, "FDSQRT%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4058, 0xe07f, {EAFLT}, "FSABS%S %e,F%D" },
{ 0xf200, 0xffc0, 0x405a, 0xe07f, {EAFLT}, "FSNEG%S %e,F%D" },
{ 0xf200, 0xffc0, 0x405c, 0xe07f, {EAFLT}, "FDABS%S %e,F%D" },
{ 0xf200, 0xffc0, 0x405e, 0xe07f, {EAFLT}, "FDNEG%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4060, 0xe07f, {EAFLT}, "FSDIV%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4062, 0xe07f, {EAFLT}, "FSADD%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4063, 0xe07f, {EAFLT}, "FSMUL%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4064, 0xe07f, {EAFLT}, "FDDIV%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4066, 0xe07f, {EAFLT}, "FDADD%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4067, 0xe07f, {EAFLT}, "FDMUL%S %e,F%D" },
{ 0xf200, 0xffc0, 0x4068, 0xe07f, {EAFLT}, "FSSUB%S %e,F%D" },
{ 0xf200, 0xffc0, 0x406c, 0xe07f, {EAFLT}, "FDSUB%S %e,F%D" },
{ 0xf200, 0xffc0, 0x0030, 0xe078, {0}, "FSINCOSX F%B,F%a:F%D" },
{ 0xf200, 0xffc0, 0x4030, 0xe078, {EAFLT}, "FSINCOS%S %e,F%a:F%D" },
{ 0xf200, 0xffc0, 0x6000, 0xe000, {EADA}, "FMOVE%S F%D,%e" },
{ 0xf300, 0xffc0, 0x0000, 0x0000, {EACAPD}, "FSAVE %e" },
{ 0xf340, 0xffc0, 0x0000, 0x0000, {EACAPI}, "FRESTORE %e" },
{ 0xf280, 0xffc0, 0x0000, 0x0000, {BR16}, "FB%p %t" },
{ 0xf2c0, 0xffc0, 0x0000, 0x0000, {BR32}, "FB%p %t" },
{ 0xf408, 0xff38, 0x0000, 0x0000, {0}, "CINVL %C,(A%y)" },
{ 0xf410, 0xff38, 0x0000, 0x0000, {0}, "CINVP %C,(A%y)" },
{ 0xf418, 0xff38, 0x0000, 0x0000, {0}, "CINVA %C" },
{ 0xf428, 0xff38, 0x0000, 0x0000, {0}, "CPUSHL %C,(A%y)" },
{ 0xf430, 0xff38, 0x0000, 0x0000, {0}, "CPUSHP %C,(A%y)" },
{ 0xf438, 0xff38, 0x0000, 0x0000, {0}, "CPUSHA %C" },
{ 0,0,0,0,{0},0 },
};
static Optable *optables[] =
{
t0, t1, t2, t3, t4, t5, t6, t7, t8, t9, 0, tb, tc, td, te, tf,
};
static Map *mymap;
static int
dumpinst(Inst *ip, char *buf, int n)
{
int i;
if (n <= 0)
return 0;
*buf++ = '#';
for (i = 0; i < ip->n && i*4+1 < n-4; i++, buf += 4)
_hexify(buf, ip->raw[i], 3);
*buf = 0;
return i*4+1;
}
static int
getword(Inst *ip, uvlong offset)
{
if (ip->n < nelem(ip->raw)) {
if (get2(mymap, offset, &ip->raw[ip->n++]) > 0)
return 1;
werrstr("can't read instruction: %r");
} else
werrstr("instruction too big: %r");
return -1;
}
static int
getshorts(Inst *ip, void *where, int n)
{
if (ip->n+n < nelem(ip->raw)) {
if (get1(mymap, ip->addr+ip->n*2, (uchar*)&ip->raw[ip->n], n*2) < 0) {
werrstr("can't read instruction: %r");
return 0;
}
memmove(where, &ip->raw[ip->n], n*2);
ip->n += n;
return 1;
}
werrstr("instruction too big: %r");
return 0;
}
static int
i8(Inst *ip, long *l)
{
if (getword(ip, ip->addr+ip->n*2) < 0)
return -1;
*l = ip->raw[ip->n-1]&0xff;
if (*l&0x80)
*l |= ~0xff;
return 1;
}
static int
i16(Inst *ip, long *l)
{
if (getword(ip, ip->addr+ip->n*2) < 0)
return -1;
*l = ip->raw[ip->n-1];
if (*l&0x8000)
*l |= ~0xffff;
return 1;
}
static int
i32(Inst *ip, long *l)
{
if (getword(ip, ip->addr+ip->n*2) < 0)
return -1;
if (getword(ip, ip->addr+ip->n*2) < 0)
return -1;
*l = (ip->raw[ip->n-2]<<16)|ip->raw[ip->n-1];
return 1;
}
static int
getimm(Inst *ip, Operand *ap, int mode)
{
ap->eatype = IMM;
switch(mode)
{
case EAM_B: /* byte */
case EAALL_B:
return i8(ip, &ap->immediate);
case EADI_W: /* word */
case EAALL_W:
return i16(ip, &ap->immediate);
case EADI_L: /* long */
case EAALL_L:
return i32(ip, &ap->immediate);
case EAFLT: /* floating point - size in bits 10-12 or word 1 */
switch((ip->raw[1]>>10)&0x07)
{
case 0: /* long integer */
return i32(ip, &ap->immediate);
case 1: /* single precision real */
ap->eatype = IREAL;
return getshorts(ip, ap->floater, 2);
case 2: /* extended precision real - not supported */
ap->eatype = IEXT;
return getshorts(ip, ap->floater, 6);
case 3: /* packed decimal real - not supported */
ap->eatype = IPACK;
return getshorts(ip, ap->floater, 12);
case 4: /* integer word */
return i16(ip, &ap->immediate);
case 5: /* double precision real */
ap->eatype = IDBL;
return getshorts(ip, ap->floater, 4);
case 6: /* integer byte */
return i8(ip, &ap->immediate);
default:
ip->errmsg = "bad immediate float data";
return -1;
}
/* not reached */
case IV: /* size encoded in bits 6&7 of opcode word */
default:
switch((ip->raw[0]>>6)&0x03)
{
case 0x00: /* integer byte */
return i8(ip, &ap->immediate);
case 0x01: /* integer word */
return i16(ip, &ap->immediate);
case 0x02: /* integer long */
return i32(ip, &ap->immediate);
default:
ip->errmsg = "bad immediate size";
return -1;
}
/* not reached */
}
}
static int
getdisp(Inst *ip, Operand *ap)
{
short ext;
if (getword(ip, ip->addr+ip->n*2) < 0)
return -1;
ext = ip->raw[ip->n-1];
ap->ext = ext;
if ((ext&0x100) == 0) { /* indexed with 7-bit displacement */
ap->disp = ext&0x7f;
if (ap->disp&0x40)
ap->disp |= ~0x7f;
return 1;
}
switch(ext&0x30) /* first (inner) displacement */
{
case 0x10:
break;
case 0x20:
if (i16(ip, &ap->disp) < 0)
return -1;
break;
case 0x30:
if (i32(ip, &ap->disp) < 0)
return -1;
break;
default:
ip->errmsg = "bad EA displacement";
return -1;
}
switch (ext&0x03) /* outer displacement */
{
case 0x02: /* 16 bit displacement */
return i16(ip, &ap->outer);
case 0x03: /* 32 bit displacement */
return i32(ip, &ap->outer);
default:
break;
}
return 1;
}
static int
ea(Inst *ip, int ea, Operand *ap, int mode)
{
int type, size;
type = 0;
ap->ext = 0;
switch((ea>>3)&0x07)
{
case 0x00:
ap->eatype = Dreg;
type = Dn;
break;
case 0x01:
ap->eatype = Areg;
type = An;
break;
case 0x02:
ap->eatype = AInd;
type = Ind;
break;
case 0x03:
ap->eatype = APinc;
type = Pinc;
break;
case 0x04:
ap->eatype = APdec;
type = Pdec;
break;
case 0x05:
ap->eatype = ADisp;
type = Bdisp;
if (i16(ip, &ap->disp) < 0)
return -1;
break;
case 0x06:
ap->eatype = BXD;
type = Bdisp;
if (getdisp(ip, ap) < 0)
return -1;
break;
case 0x07:
switch(ea&0x07)
{
case 0x00:
type = Abs;
ap->eatype = ABS;
if (i16(ip, &ap->immediate) < 0)
return -1;
break;
case 0x01:
type = Abs;
ap->eatype = ABS;
if (i32(ip, &ap->immediate) < 0)
return -1;
break;
case 0x02:
type = PCrel;
ap->eatype = PDisp;
if (i16(ip, &ap->disp) < 0)
return -1;
break;
case 0x03:
type = PCrel;
ap->eatype = PXD;
if (getdisp(ip, ap) < 0)
return -1;
break;
case 0x04:
type = Imm;
if (getimm(ip, ap, mode) < 0)
return -1;
break;
default:
ip->errmsg = "bad EA mode";
return -1;
}
}
/* Allowable floating point EAs are restricted for packed,
* extended, and double precision operands
*/
if (mode == EAFLT) {
size = (ip->raw[1]>>10)&0x07;
if (size == 2 || size == 3 || size == 5)
mode = EAM;
else
mode = EADI;
}
if (!(validea[mode]&type)) {
ip->errmsg = "invalid EA";
return -1;
}
return 1;
}
static int
decode(Inst *ip, Optable *op)
{
int i, t, mode;
Operand *ap;
short opcode;
opcode = ip->raw[0];
for (i = 0; i < nelem(op->opdata) && op->opdata[i]; i++) {
ap = &ip->and[i];
mode = op->opdata[i];
switch(mode)
{
case EAPI: /* normal EA modes */
case EACA:
case EACAD:
case EACAPI:
case EACAPD:
case EAMA:
case EADA:
case EAA:
case EAC:
case EACPI:
case EACD:
case EAD:
case EAM:
case EAM_B:
case EADI:
case EADI_L:
case EADI_W:
case EAALL:
case EAALL_L:
case EAALL_W:
case EAALL_B:
case EAFLT:
if (ea(ip, opcode&0x3f, ap, mode) < 0)
return -1;
break;
case EADDA: /* stupid bit flop required */
t = ((opcode>>9)&0x07)|((opcode>>3)&0x38);
if (ea(ip, t, ap, EADA)< 0)
return -1;
break;
case BREAC: /* EAC JMP or CALL operand */
if (ea(ip, opcode&0x3f, ap, EAC) < 0)
return -1;
break;
case OP8: /* weird movq instruction */
ap->eatype = IMM;
ap->immediate = opcode&0xff;
if (opcode&0x80)
ap->immediate |= ~0xff;
break;
case I8: /* must be two-word opcode */
ap->eatype = IMM;
ap->immediate = ip->raw[1]&0xff;
if (ap->immediate&0x80)
ap->immediate |= ~0xff;
break;
case I16: /* 16 bit immediate */
case BR16:
ap->eatype = IMM;
if (i16(ip, &ap->immediate) < 0)
return -1;
break;
case C16: /* CAS2 16 bit immediate */
ap->eatype = IMM;
if (i16(ip, &ap->immediate) < 0)
return -1;
if (ap->immediate & 0x0e38) {
ip->errmsg = "bad CAS2W operand";
return 0;
}
break;
case I32: /* 32 bit immediate */
case BR32:
ap->eatype = IMM;
if (i32(ip, &ap->immediate) < 0)
return -1;
break;
case IV: /* immediate data depends on size field */
if (getimm(ip, ap, IV) < 0)
return -1;
break;
case BR8: /* branch displacement format */
ap->eatype = IMM;
ap->immediate = opcode&0xff;
if (ap->immediate == 0) {
if (i16(ip, &ap->immediate) < 0)
return -1;
} else if (ap->immediate == 0xff) {
if (i32(ip, &ap->immediate) < 0)
return -1;
} else if (ap->immediate & 0x80)
ap->immediate |= ~0xff;
break;
case STACK: /* Dummy operand type for Return instructions */
default:
break;
}
}
return 1;
}
static Optable *
instruction(Inst *ip)
{
ushort opcode, op2;
Optable *op;
int class;
ip->n = 0;
if (getword(ip, ip->addr) < 0)
return 0;
opcode = ip->raw[0];
if (get2(mymap, ip->addr+2, &op2) < 0)
op2 = 0;
class = (opcode>>12)&0x0f;
for (op = optables[class]; op && op->format; op++) {
if (op->opcode != (opcode&op->mask0))
continue;
if (op->op2 != (op2&op->mask1))
continue;
if (op->mask1)
ip->raw[ip->n++] = op2;
return op;
}
ip->errmsg = "Invalid opcode";
return 0;
}
#pragma varargck argpos bprint 2
static void
bprint(Inst *i, char *fmt, ...)
{
va_list arg;
va_start(arg, fmt);
i->curr = vseprint(i->curr, i->end, fmt, arg);
va_end(arg);
}
static char *regname[] =
{
"R0", "R1", "R2", "R3", "R4", "R5", "R6", "R7", "A0",
"A1", "A2", "A3", "A4", "A5", "A6", "A7", "PC", "SB"
};
static void
plocal(Inst *ip, Operand *ap)
{
int ret;
long offset;
uvlong moved;
Symbol s;
offset = ap->disp;
if (!findsym(ip->addr, CTEXT, &s))
goto none;
moved = pc2sp(ip->addr);
if (moved == -1)
goto none;
if (offset > moved) { /* above frame - must be argument */
offset -= moved;
ret = getauto(&s, offset-mach->szaddr, CPARAM, &s);
} else /* below frame - must be automatic */
ret = getauto(&s, moved-offset, CPARAM, &s);
if (ret)
bprint(ip, "%s+%lux", s.name, offset);
else
none: bprint(ip, "%lux", ap->disp);
}
/*
* this guy does all the work of printing the base and index component
* of an EA.
*/
static int
pidx(Inst *ip, int ext, int reg, char *bfmt, char *ifmt, char *nobase)
{
char *s;
int printed;
char buf[512];
printed = 1;
if (ext&0x80) { /* Base suppressed */
if (reg == 16)
bprint(ip, bfmt, "(ZPC)");
else if (nobase)
bprint(ip, nobase);
else
printed = 0;
} else /* format base reg */
bprint(ip, bfmt, regname[reg]);
if (ext & 0x40) /* index suppressed */
return printed;
switch ((ext>>9)&0x03)
{
case 0x01:
s = "*2";
break;
case 0x02:
s = "*4";
break;
case 0x03:
s = "*8";
break;
default:
if (ext&0x80)
s = "*1";
else
s = "";
break;
}
sprint(buf, "%s.%c%s", regname[(ext>>12)&0x0f], (ext&0x800) ? 'L' : 'W', s);
if (!printed)
bprint(ip, ifmt, buf);
else
bprint(ip, "(%s)", buf);
return 1;
}
static void
prindex(Inst *ip, int reg, Operand *ap)
{
short ext;
int left;
int disp;
left = ip->end-ip->curr;
if (left <= 0)
return;
ext = ap->ext;
disp = ap->disp;
/* look for static base register references */
if ((ext&0xa0) == 0x20 && reg == 14 && mach->sb && disp) {
reg = 17; /* "A6" -> "SB" */
disp += mach->sb;
}
if ((ext&0x100) == 0) { /* brief form */
if (reg == 15)
plocal(ip, ap);
else if (disp)
ip->curr += symoff(ip->curr, left, disp, CANY);
pidx(ip, ext&0xff00, reg, "(%s)", "(%s)", 0);
return;
}
switch(ext&0x3f) /* bd size, && i/is */
{
case 0x10:
if (!pidx(ip, ext, reg, "(%s)", "(%s)", 0))
bprint(ip, "#0");
break;
case 0x11:
if (pidx(ip, ext, reg, "((%s)", "((%s)", 0))
bprint(ip, ")");
else
bprint(ip, "#0");
break;
case 0x12:
case 0x13:
ip->curr += symoff(ip->curr, left, ap->outer, CANY);
if (pidx(ip, ext, reg, "((%s)", "((%s)", 0))
bprint(ip, ")");
break;
case 0x15:
if (!pidx(ip, ext, reg, "((%s))", "(%s)", 0))
bprint(ip, "#0");
break;
case 0x16:
case 0x17:
ip->curr += symoff(ip->curr, left, ap->outer, CANY);
pidx(ip, ext, reg, "((%s))", "(%s)", 0);
break;
case 0x20:
case 0x30:
if (reg == 15)
plocal(ip, ap);
else
ip->curr += symoff(ip->curr, left, disp, CANY);
pidx(ip, ext, reg, "(%s)", "(%s)", 0);
break;
case 0x21:
case 0x31:
*ip->curr++ = '(';
if (reg == 15)
plocal(ip, ap);
else
ip->curr += symoff(ip->curr, left-1, disp, CANY);
pidx(ip, ext, reg, "(%s)", "(%s)", 0);
bprint(ip, ")");
break;
case 0x22:
case 0x23:
case 0x32:
case 0x33:
ip->curr += symoff(ip->curr, left, ap->outer, CANY);
bprint(ip, "(");
if (reg == 15)
plocal(ip, ap);
else
ip->curr += symoff(ip->curr, ip->end-ip->curr, disp, CANY);
pidx(ip, ext, reg, "(%s)", "(%s)", 0);
bprint(ip, ")");
break;
case 0x25:
case 0x35:
*ip->curr++ = '(';
if (reg == 15)
plocal(ip, ap);
else
ip->curr += symoff(ip->curr, left-1, disp, CANY);
if (!pidx(ip, ext, reg, "(%s))", "(%s)", "())"))
bprint(ip, ")");
break;
case 0x26:
case 0x27:
case 0x36:
case 0x37:
ip->curr += symoff(ip->curr, left, ap->outer, CANY);
bprint(ip, "(");
if (reg == 15)
plocal(ip, ap);
else
ip->curr += symoff(ip->curr, ip->end-ip->curr, disp, CANY);
pidx(ip, ext, reg, "(%s))", "(%s)", "())");
break;
default:
bprint(ip, "??%x??", ext);
ip->errmsg = "bad EA";
break;
}
}
static void
pea(int reg, Inst *ip, Operand *ap)
{
int i, left;
left = ip->end-ip->curr;
if (left < 0)
return;
switch(ap->eatype)
{
case Dreg:
bprint(ip, "R%d", reg);
break;
case Areg:
bprint(ip, "A%d", reg);
break;
case AInd:
bprint(ip, "(A%d)", reg);
break;
case APinc:
bprint(ip, "(A%d)+", reg);
break;
case APdec:
bprint(ip, "-(A%d)", reg);
break;
case PDisp:
ip->curr += symoff(ip->curr, left, ip->addr+2+ap->disp, CANY);
break;
case PXD:
prindex(ip, 16, ap);
break;
case ADisp: /* references off the static base */
if (reg == 6 && mach->sb && ap->disp) {
ip->curr += symoff(ip->curr, left, ap->disp+mach->sb, CANY);
bprint(ip, "(SB)");
break;
}
/* reference autos and parameters off the stack */
if (reg == 7)
plocal(ip, ap);
else
ip->curr += symoff(ip->curr, left, ap->disp, CANY);
bprint(ip, "(A%d)", reg);
break;
case BXD:
prindex(ip, reg+8, ap);
break;
case ABS:
ip->curr += symoff(ip->curr, left, ap->immediate, CANY);
bprint(ip, "($0)");
break;
case IMM:
*ip->curr++ = '$';
ip->curr += symoff(ip->curr, left-1, ap->immediate, CANY);
break;
case IREAL:
*ip->curr++ = '$';
ip->curr += beieeesftos(ip->curr, left-1, (void*) ap->floater);
break;
case IDBL:
*ip->curr++ = '$';
ip->curr += beieeedftos(ip->curr, left-1, (void*) ap->floater);
break;
case IPACK:
bprint(ip, "$#");
for (i = 0; i < 24 && ip->curr < ip->end-1; i++) {
_hexify(ip->curr, ap->floater[i], 1);
ip->curr += 2;
}
break;
case IEXT:
bprint(ip, "$#");
ip->curr += beieee80ftos(ip->curr, left-2, (void*)ap->floater);
break;
default:
bprint(ip, "??%x??", ap->eatype);
ip->errmsg = "bad EA type";
break;
}
}
static char *cctab[] = { "F", "T", "HI", "LS", "CC", "CS", "NE", "EQ",
"VC", "VS", "PL", "MI", "GE", "LT", "GT", "LE" };
static char *fcond[] =
{
"F", "EQ", "OGT", "OGE", "OLT", "OLE", "OGL", "OR",
"UN", "UEQ", "UGT", "UGE", "ULT", "ULE", "NE", "T",
"SF", "SEQ", "GT", "GE", "LT", "LE", "GL", "GLE",
"NGLE", "NGL", "NLE", "NLT", "NGE", "NGT", "SNE", "ST"
};
static char *cachetab[] = { "NC", "DC", "IC", "BC" };
static char *mmutab[] = { "TC", "??", "SRP", "CRP" };
static char *crtab0[] =
{
"SFC", "DFC", "CACR", "TC", "ITT0", "ITT1", "DTT0", "DTT1",
};
static char *crtab1[] =
{
"USP", "VBR", "CAAR", "MSP", "ISP", "MMUSR", "URP", "SRP",
};
static char typetab[] = { 'L', 'S', 'X', 'P', 'W', 'D', 'B', '?', };
static char sztab[] = {'?', 'B', 'W', 'L', '?' };
static void
formatins(char *fmt, Inst *ip)
{
short op, w1;
int r1, r2;
int currand;
op = ip->raw[0];
w1 = ip->raw[1];
currand = 0;
for (; *fmt && ip->curr < ip->end; fmt++) {
if (*fmt != '%')
*ip->curr++ = *fmt;
else switch(*++fmt)
{
case '%':
*ip->curr++ = '%';
break;
case 'a': /* register number; word 1:[0-2] */
*ip->curr++ = (w1&0x07)+'0';
break;
case 'c': /* condition code; opcode: [8-11] */
bprint(ip, cctab[(op>>8)&0x0f]);
break;
case 'd': /* shift direction; opcode: [8] */
if (op&0x100)
*ip->curr++ = 'L';
else
*ip->curr++ = 'R';
break;
case 'e': /* source effective address */
pea(op&0x07, ip, &ip->and[currand++]);
break;
case 'f': /* trap vector; op code: [0-3] */
bprint(ip, "%x", op&0x0f);
break;
case 'h': /* register number; word 1: [5-7] */
*ip->curr++ = (w1>>5)&0x07+'0';
break;
case 'i': /* immediate operand */
ip->curr += symoff(ip->curr, ip->end-ip->curr,
ip->and[currand++].immediate, CANY);
break;
case 'j': /* data registers; word 1: [0-2] & [12-14] */
r1 = w1&0x07;
r2 = (w1>>12)&0x07;
if (r1 == r2)
bprint(ip, "R%d", r1);
else
bprint(ip, "R%d:R%d", r2, r1);
break;
case 'k': /* k factor; word 1 [0-6] */
bprint(ip, "%x", w1&0x7f);
break;
case 'm': /* register mask; word 1 [0-7] */
bprint(ip, "%x", w1&0xff);
break;
case 'o': /* bit field offset; word1: [6-10] */
bprint(ip, "%d", (w1>>6)&0x3f);
break;
case 'p': /* conditional predicate; opcode: [0-5]
only bits 0-4 are defined */
bprint(ip, fcond[op&0x1f]);
break;
case 'q': /* 3-bit immediate value; opcode[9-11] */
r1 = (op>>9)&0x07;
if (r1 == 0)
*ip->curr++ = '8';
else
*ip->curr++ = r1+'0';
break;
case 'r': /* register type & number; word 1: [12-15] */
bprint(ip, regname[(w1>>12)&0x0f]);
break;
case 's': /* size; opcode [6-7] */
*ip->curr = sztab[((op>>6)&0x03)+1];
if (*ip->curr++ == '?')
ip->errmsg = "bad size code";
break;
case 't': /* text offset */
ip->curr += symoff(ip->curr, ip->end-ip->curr,
ip->and[currand++].immediate+ip->addr+2, CTEXT);
break;
case 'u': /* register number; word 1: [6-8] */
*ip->curr++ = ((w1>>6)&0x07)+'0';
break;
case 'w': /* bit field width; word 1: [0-4] */
bprint(ip, "%d", w1&0x0f);
break;
case 'x': /* register number; opcode: [9-11] */
*ip->curr++ = ((op>>9)&0x07)+'0';
break;
case 'y': /* register number; opcode: [0-2] */
*ip->curr++ = (op&0x07)+'0';
break;
case 'z': /* shift count; opcode: [9-11] */
*ip->curr++ = ((op>>9)&0x07)+'0';
break;
case 'A': /* register number; word 2: [0-2] */
*ip->curr++ = (ip->raw[2]&0x07)+'0';
break;
case 'B': /* float source reg; word 1: [10-12] */
*ip->curr++ = ((w1>>10)&0x07)+'0';
break;
case 'C': /* cache identifier; opcode: [6-7] */
bprint(ip, cachetab[(op>>6)&0x03]);
break;
case 'D': /* float dest reg; word 1: [7-9] */
*ip->curr++ = ((w1>>7)&0x07)+'0';
break;
case 'E': /* destination EA; opcode: [6-11] */
pea((op>>9)&0x07, ip, &ip->and[currand++]);
break;
case 'F': /* float dest register(s); word 1: [7-9] & [10-12] */
r1 = (w1>>7)&0x07;
r2 = (w1>>10)&0x07;
if (r1 == r2)
bprint(ip, "F%d", r1);
else
bprint(ip, "F%d,F%d", r2, r1);
break;
case 'H': /* MMU register; word 1 [10-13] */
bprint(ip, mmutab[(w1>>10)&0x03]);
if (ip->curr[-1] == '?')
ip->errmsg = "bad mmu register";
break;
case 'I': /* MMU function code mask; word 1: [5-8] */
bprint(ip, "%x", (w1>>4)&0x0f);
break;
case 'K': /* dynamic k-factor register; word 1: [5-8] */
bprint(ip, "%d", (w1>>4)&0x0f);
break;
case 'L': /* MMU function code; word 1: [0-6] */
if (w1&0x10)
bprint(ip, "%x", w1&0x0f);
else if (w1&0x08)
bprint(ip, "R%d",w1&0x07);
else if (w1&0x01)
bprint(ip, "DFC");
else
bprint(ip, "SFC");
break;
case 'N': /* control register; word 1: [0-11] */
r1 = w1&0xfff;
if (r1&0x800)
bprint(ip, crtab1[r1&0x07]);
else
bprint(ip, crtab0[r1&0x07]);
break;
case 'P': /* conditional predicate; word 1: [0-5] */
bprint(ip, fcond[w1&0x1f]);
break;
case 'R': /* register type & number; word 2 [12-15] */
bprint(ip, regname[(ip->raw[2]>>12)&0x0f]);
break;
case 'S': /* float source type code; word 1: [10-12] */
*ip->curr = typetab[(w1>>10)&0x07];
if (*ip->curr++ == '?')
ip->errmsg = "bad float type";
break;
case 'U': /* register number; word 2: [6-8] */
*ip->curr++ = ((ip->raw[2]>>6)&0x07)+'0';
break;
case 'Z': /* ATC level number; word 1: [10-12] */
bprint(ip, "%x", (w1>>10)&0x07);
break;
case '1': /* effective address in second operand*/
pea(op&0x07, ip, &ip->and[1]);
break;
default:
bprint(ip, "%%%c", *fmt);
break;
}
}
*ip->curr = 0; /* there's always room for 1 byte */
}
static int
dispsize(Inst *ip)
{
ushort ext;
static int dsize[] = {0, 0, 1, 2}; /* in words */
if (get2(mymap, ip->addr+ip->n*2, &ext) < 0)
return -1;
if ((ext&0x100) == 0)
return 1;
return dsize[(ext>>4)&0x03]+dsize[ext&0x03]+1;
}
static int
immsize(Inst *ip, int mode)
{
static int fsize[] = { 2, 2, 6, 12, 1, 4, 1, -1 };
static int isize[] = { 1, 1, 2, -1 };
switch(mode)
{
case EAM_B: /* byte */
case EAALL_B:
case EADI_W: /* word */
case EAALL_W:
return 1;
case EADI_L: /* long */
case EAALL_L:
return 2;
case EAFLT: /* floating point - size in bits 10-12 or word 1 */
return fsize[(ip->raw[1]>>10)&0x07];
case IV: /* size encoded in bits 6&7 of opcode word */
default:
return isize[(ip->raw[0]>>6)&0x03];
}
}
static int
easize(Inst *ip, int ea, int mode)
{
switch((ea>>3)&0x07)
{
case 0x00:
case 0x01:
case 0x02:
case 0x03:
case 0x04:
return 0;
case 0x05:
return 1;
case 0x06:
return dispsize(ip);
case 0x07:
switch(ea&0x07)
{
case 0x00:
case 0x02:
return 1;
case 0x01:
return 2;
case 0x03:
return dispsize(ip);
case 0x04:
return immsize(ip, mode);
default:
return -1;
}
}
return -1;
}
static int
instrsize(Inst *ip, Optable *op)
{
int i, t, mode;
short opcode;
opcode = ip->raw[0];
for (i = 0; i < nelem(op->opdata) && op->opdata[i]; i++) {
mode = op->opdata[i];
switch(mode)
{
case EAPI: /* normal EA modes */
case EACA:
case EACAD:
case EACAPI:
case EACAPD:
case EAMA:
case EADA:
case EAA:
case EAC:
case EACPI:
case EACD:
case EAD:
case EAM:
case EAM_B:
case EADI:
case EADI_L:
case EADI_W:
case EAALL:
case EAALL_L:
case EAALL_W:
case EAALL_B:
case EAFLT:
t = easize(ip, opcode&0x3f, mode);
if (t < 0)
return -1;
ip->n += t;
break;
case EADDA: /* stupid bit flop required */
t = ((opcode>>9)&0x07)|((opcode>>3)&0x38);
t = easize(ip, t, mode);
if (t < 0)
return -1;
ip->n += t;
break;
case BREAC: /* EAC JMP or CALL operand */
/* easy displacements for follow set */
if ((opcode&0x038) == 0x28 || (opcode&0x3f) == 0x3a) {
if (i16(ip, &ip->and[i].immediate) < 0)
return -1;
} else {
t = easize(ip, opcode&0x3f, mode);
if (t < 0)
return -1;
ip->n += t;
}
break;
case I16: /* 16 bit immediate */
case C16: /* CAS2 16 bit immediate */
ip->n++;
break;
case BR16: /* 16 bit branch displacement */
if (i16(ip, &ip->and[i].immediate) < 0)
return -1;
break;
case BR32: /* 32 bit branch displacement */
if (i32(ip, &ip->and[i].immediate) < 0)
return -1;
break;
case I32: /* 32 bit immediate */
ip->n += 2;
break;
case IV: /* immediate data depends on size field */
t = (ip->raw[0]>>6)&0x03;
if (t < 2)
ip->n++;
else if (t == 2)
ip->n += 2;
else
return -1;
break;
case BR8: /* loony branch displacement format */
t = opcode&0xff;
if (t == 0) {
if (i16(ip, &ip->and[i].immediate) < 0)
return -1;
} else if (t == 0xff) {
if (i32(ip, &ip->and[i].immediate) < 0)
return -1;
} else {
ip->and[i].immediate = t;
if (t & 0x80)
ip->and[i].immediate |= ~0xff;
}
break;
case STACK: /* Dummy operand for Return instructions */
case OP8: /* weird movq instruction */
case I8: /* must be two-word opcode */
default:
break;
}
}
return 1;
}
static int
eaval(Inst *ip, Operand *ap, Rgetter rget)
{
int reg;
char buf[8];
reg = ip->raw[0]&0x07;
switch(ap->eatype)
{
case AInd:
sprint(buf, "A%d", reg);
return (*rget)(mymap, buf);
case PDisp:
return ip->addr+2+ap->disp;
case ADisp:
sprint(buf, "A%d", reg);
return ap->disp+(*rget)(mymap, buf);
case ABS:
return ap->immediate;
default:
return 0;
}
}
static int
m68020instlen(Map *map, uvlong pc)
{
Inst i;
Optable *op;
mymap = map;
i.addr = pc;
i.errmsg = 0;
op = instruction(&i);
if (op && instrsize(&i, op) > 0)
return i.n*2;
return -1;
}
static int
m68020foll(Map *map, uvlong pc, Rgetter rget, uvlong *foll)
{
int j;
Inst i;
ulong l;
Optable *op;
mymap = map;
i.addr = pc;
i.errmsg = 0;
op = instruction(&i);
if (op == 0 || instrsize(&i, op) < 0)
return -1;
for (j = 0; j < nelem(op->opdata) && op->opdata[j]; j++) {
switch(op->opdata[j])
{
case BREAC: /* CALL, JMP, JSR */
foll[0] = pc+2+eaval(&i, &i.and[j], rget);
return 1;
case BR8: /* Bcc, BSR, & BRA */
case BR16: /* FBcc, FDBcc, DBcc */
case BR32: /* FBcc */
foll[0] = pc+i.n*2;
foll[1] = pc+2+i.and[j].immediate;
return 2;
case STACK: /* RTR, RTS, RTD */
if (get4(map, (*rget)(map, mach->sp), &l) < 0)
return -1;
*foll = l;
return 1;
default:
break;
}
}
foll[0] = pc+i.n*2;
return 1;
}
static int
m68020inst(Map *map, uvlong pc, char modifier, char *buf, int n)
{
Inst i;
Optable *op;
USED(modifier);
mymap = map;
i.addr = pc;
i.curr = buf;
i.end = buf+n-1;
i.errmsg = 0;
op = instruction(&i);
if (!op)
return -1;
if (decode(&i, op) > 0)
formatins(op->format, &i);
if (i.errmsg) {
if (i.curr != buf)
bprint(&i, "\t\t;");
bprint(&i, "%s: ", i.errmsg);
dumpinst(&i, i.curr, i.end-i.curr);
}
return i.n*2;
}
static int
m68020das(Map *map, uvlong pc, char *buf, int n)
{
Inst i;
Optable *op;
mymap = map;
i.addr = pc;
i.curr = buf;
i.end = buf+n-1;
i.errmsg = 0;
op = instruction(&i);
if (!op)
return -1;
decode(&i, op);
if (i.errmsg)
bprint(&i, "%s: ", i.errmsg);
dumpinst(&i, i.curr, i.end-i.curr);
return i.n*2;
}