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author | Jim Kingdon <jkingdon@engr.sgi.com> | 1993-04-02 00:18:47 +0000 |
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committer | Jim Kingdon <jkingdon@engr.sgi.com> | 1993-04-02 00:18:47 +0000 |
commit | 720b3aed42496ecd97289ec5c9929336fb39a928 (patch) | |
tree | d9c390411bd49fd01367c72475b8028a7a75c0de /binutils/i960-pinsn.c | |
parent | 3245e377e4982fb9a24168773ba44316cfbf57cf (diff) | |
download | fsf-binutils-gdb-720b3aed42496ecd97289ec5c9929336fb39a928.zip fsf-binutils-gdb-720b3aed42496ecd97289ec5c9929336fb39a928.tar.gz fsf-binutils-gdb-720b3aed42496ecd97289ec5c9929336fb39a928.tar.bz2 |
New print_address for disassemblers, merge a29k and i960 disassemblers
Diffstat (limited to 'binutils/i960-pinsn.c')
-rw-r--r-- | binutils/i960-pinsn.c | 814 |
1 files changed, 0 insertions, 814 deletions
diff --git a/binutils/i960-pinsn.c b/binutils/i960-pinsn.c deleted file mode 100644 index a346064..0000000 --- a/binutils/i960-pinsn.c +++ /dev/null @@ -1,814 +0,0 @@ -/* Disassemble i80960 instructions. - Copyright (C) 1990, 1991 Free Software Foundation, Inc. - -This file is part of BFD, the Binary File Diddler. - -BFD is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -BFD is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with BFD; see the file COPYING. If not, write to -the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ - -#include "bfd.h" -#include "sysdep.h" -#include "bucomm.h" - -static char *reg_names[] = { -/* 0 */ "pfp", "sp", "rip", "r3", "r4", "r5", "r6", "r7", -/* 8 */ "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", -/* 16 */ "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7", -/* 24 */ "g8", "g9", "g10", "g11", "g12", "g13", "g14", "fp", -/* 32 */ "pc", "ac", "ip", "tc", "fp0", "fp1", "fp2", "fp3" -}; - - -static FILE *stream; /* Output goes here */ -static void print_addr(); -static void ctrl(); -static void cobr(); -static void reg(); -static int mem(); -static void ea(); -static void dstop(); -static void regop(); -static void invalid(); -static int pinsn(); -static void put_abs(); - - -/* Print the i960 instruction at address 'memaddr' in debugged memory, - * on stream 's'. Returns length of the instruction, in bytes. - */ -int -print_insn_i960( memaddr, buffer, s ) - bfd_vma memaddr; - uint8e_type *buffer; - FILE *s; -{ - unsigned int word1, word2; - - stream = s; - word1 =buffer [0] |( buffer[1]<< 8) | (buffer[2] << 16) | ( buffer[3] <<24); - word2 =buffer [4] |( buffer[5]<< 8) | (buffer[6] << 16) | ( buffer[7] <<24); - return pinsn( memaddr, word1, word2 ); -} - -#define IN_GDB - -/***************************************************************************** - * All code below this point should be identical with that of - * the disassembler in gdmp960. - *****************************************************************************/ - -struct tabent { - char *name; - char numops; -}; - -static int -pinsn( memaddr, word1, word2 ) - unsigned long memaddr; - unsigned long word1, word2; -{ - int instr_len; - - instr_len = 4; - put_abs( word1, word2 ); - - /* Divide instruction set into classes based on high 4 bits of opcode*/ - switch ( (word1 >> 28) & 0xf ){ - case 0x0: - case 0x1: - ctrl( memaddr, word1, word2 ); - break; - case 0x2: - case 0x3: - cobr( memaddr, word1, word2 ); - break; - case 0x5: - case 0x6: - case 0x7: - reg( word1 ); - break; - case 0x8: - case 0x9: - case 0xa: - case 0xb: - case 0xc: - instr_len = mem( memaddr, word1, word2, 0 ); - break; - default: - /* invalid instruction, print as data word */ - invalid( word1 ); - break; - } - return instr_len; -} - -/****************************************/ -/* CTRL format */ -/****************************************/ -static void -ctrl( memaddr, word1, word2 ) - unsigned long memaddr; - unsigned long word1, word2; -{ - int i; - static struct tabent ctrl_tab[] = { - NULL, 0, /* 0x00 */ - NULL, 0, /* 0x01 */ - NULL, 0, /* 0x02 */ - NULL, 0, /* 0x03 */ - NULL, 0, /* 0x04 */ - NULL, 0, /* 0x05 */ - NULL, 0, /* 0x06 */ - NULL, 0, /* 0x07 */ - "b", 1, /* 0x08 */ - "call", 1, /* 0x09 */ - "ret", 0, /* 0x0a */ - "bal", 1, /* 0x0b */ - NULL, 0, /* 0x0c */ - NULL, 0, /* 0x0d */ - NULL, 0, /* 0x0e */ - NULL, 0, /* 0x0f */ - "bno", 1, /* 0x10 */ - "bg", 1, /* 0x11 */ - "be", 1, /* 0x12 */ - "bge", 1, /* 0x13 */ - "bl", 1, /* 0x14 */ - "bne", 1, /* 0x15 */ - "ble", 1, /* 0x16 */ - "bo", 1, /* 0x17 */ - "faultno", 0, /* 0x18 */ - "faultg", 0, /* 0x19 */ - "faulte", 0, /* 0x1a */ - "faultge", 0, /* 0x1b */ - "faultl", 0, /* 0x1c */ - "faultne", 0, /* 0x1d */ - "faultle", 0, /* 0x1e */ - "faulto", 0, /* 0x1f */ - }; - - i = (word1 >> 24) & 0xff; - if ( (ctrl_tab[i].name == NULL) || ((word1 & 1) != 0) ){ - invalid( word1 ); - return; - } - - fputs( ctrl_tab[i].name, stream ); - if ( word1 & 2 ){ /* Predicts branch not taken */ - fputs( ".f", stream ); - } - - if ( ctrl_tab[i].numops == 1 ){ - /* EXTRACT DISPLACEMENT AND CONVERT TO ADDRESS */ - word1 &= 0x00ffffff; - if ( word1 & 0x00800000 ){ /* Sign bit is set */ - word1 |= (-1 & ~0xffffff); /* Sign extend */ - } - putc( '\t', stream ); - print_addr( word1 + memaddr ); - } -} - -/****************************************/ -/* COBR format */ -/****************************************/ -static void -cobr( memaddr, word1, word2 ) - unsigned long memaddr; - unsigned long word1, word2; -{ - int src1; - int src2; - int i; - - static struct tabent cobr_tab[] = { - "testno", 1, /* 0x20 */ - "testg", 1, /* 0x21 */ - "teste", 1, /* 0x22 */ - "testge", 1, /* 0x23 */ - "testl", 1, /* 0x24 */ - "testne", 1, /* 0x25 */ - "testle", 1, /* 0x26 */ - "testo", 1, /* 0x27 */ - NULL, 0, /* 0x28 */ - NULL, 0, /* 0x29 */ - NULL, 0, /* 0x2a */ - NULL, 0, /* 0x2b */ - NULL, 0, /* 0x2c */ - NULL, 0, /* 0x2d */ - NULL, 0, /* 0x2e */ - NULL, 0, /* 0x2f */ - "bbc", 3, /* 0x30 */ - "cmpobg", 3, /* 0x31 */ - "cmpobe", 3, /* 0x32 */ - "cmpobge", 3, /* 0x33 */ - "cmpobl", 3, /* 0x34 */ - "cmpobne", 3, /* 0x35 */ - "cmpoble", 3, /* 0x36 */ - "bbs", 3, /* 0x37 */ - "cmpibno", 3, /* 0x38 */ - "cmpibg", 3, /* 0x39 */ - "cmpibe", 3, /* 0x3a */ - "cmpibge", 3, /* 0x3b */ - "cmpibl", 3, /* 0x3c */ - "cmpibne", 3, /* 0x3d */ - "cmpible", 3, /* 0x3e */ - "cmpibo", 3, /* 0x3f */ - }; - - i = ((word1 >> 24) & 0xff) - 0x20; - if ( cobr_tab[i].name == NULL ){ - invalid( word1 ); - return; - } - - fputs( cobr_tab[i].name, stream ); - if ( word1 & 2 ){ /* Predicts branch not taken */ - fputs( ".f", stream ); - } - putc( '\t', stream ); - - src1 = (word1 >> 19) & 0x1f; - src2 = (word1 >> 14) & 0x1f; - - if ( word1 & 0x02000 ){ /* M1 is 1 */ - fprintf( stream, "%d", src1 ); - } else { /* M1 is 0 */ - fputs( reg_names[src1], stream ); - } - - if ( cobr_tab[i].numops > 1 ){ - if ( word1 & 1 ){ /* S2 is 1 */ - fprintf( stream, ",sf%d,", src2 ); - } else { /* S1 is 0 */ - fprintf( stream, ",%s,", reg_names[src2] ); - } - - /* Extract displacement and convert to address - */ - word1 &= 0x00001ffc; - if ( word1 & 0x00001000 ){ /* Negative displacement */ - word1 |= (-1 & ~0x1fff); /* Sign extend */ - } - print_addr( memaddr + word1 ); - } -} - -/****************************************/ -/* MEM format */ -/****************************************/ -static int /* returns instruction length: 4 or 8 */ -mem( memaddr, word1, word2, noprint ) - unsigned long memaddr; - unsigned long word1, word2; - int noprint; /* If TRUE, return instruction length, but - * don't output any text. - */ -{ - int i, j; - int len; - int mode; - int offset; - char *reg1, *reg2, *reg3; - - /* This lookup table is too sparse to make it worth typing in, but not - * so large as to make a sparse array necessary. We allocate the - * table at runtime, initialize all entries to empty, and copy the - * real ones in from an initialization table. - * - * NOTE: In this table, the meaning of 'numops' is: - * 1: single operand - * 2: 2 operands, load instruction - * -2: 2 operands, store instruction - */ - static struct tabent *mem_tab = NULL; -/* Opcodes of 0x8X, 9X, aX, bX, and cX must be in the table. */ -#define MEM_MIN 0x80 -#define MEM_MAX 0xcf -#define MEM_SIZ ((MEM_MAX-MEM_MIN+1) * sizeof(struct tabent)) - - static struct { int opcode; char *name; char numops; } mem_init[] = { - 0x80, "ldob", 2, - 0x82, "stob", -2, - 0x84, "bx", 1, - 0x85, "balx", 2, - 0x86, "callx", 1, - 0x88, "ldos", 2, - 0x8a, "stos", -2, - 0x8c, "lda", 2, - 0x90, "ld", 2, - 0x92, "st", -2, - 0x98, "ldl", 2, - 0x9a, "stl", -2, - 0xa0, "ldt", 2, - 0xa2, "stt", -2, - 0xb0, "ldq", 2, - 0xb2, "stq", -2, - 0xc0, "ldib", 2, - 0xc2, "stib", -2, - 0xc8, "ldis", 2, - 0xca, "stis", -2, - 0, NULL, 0 - }; - - if ( mem_tab == NULL ){ - mem_tab = (struct tabent *) xmalloc( MEM_SIZ ); - memset( (void *) mem_tab, 0, MEM_SIZ ); - for ( i = 0; mem_init[i].opcode != 0; i++ ){ - j = mem_init[i].opcode - MEM_MIN; - mem_tab[j].name = mem_init[i].name; - mem_tab[j].numops = mem_init[i].numops; - } - } - - i = ((word1 >> 24) & 0xff) - MEM_MIN; - mode = (word1 >> 10) & 0xf; - - if ( (mem_tab[i].name != NULL) /* Valid instruction */ - && ((mode == 5) || (mode >=12)) ){ /* With 32-bit displacement */ - len = 8; - } else { - len = 4; - } - - if ( noprint ){ - return len; - } - - if ( (mem_tab[i].name == NULL) || (mode == 6) ){ - invalid( word1 ); - return len; - } - - fprintf( stream, "%s\t", mem_tab[i].name ); - - reg1 = reg_names[ (word1 >> 19) & 0x1f ]; /* MEMB only */ - reg2 = reg_names[ (word1 >> 14) & 0x1f ]; - reg3 = reg_names[ word1 & 0x1f ]; /* MEMB only */ - offset = word1 & 0xfff; /* MEMA only */ - - switch ( mem_tab[i].numops ){ - - case 2: /* LOAD INSTRUCTION */ - if ( mode & 4 ){ /* MEMB FORMAT */ - ea( memaddr, mode, reg2, reg3, word1, word2 ); - fprintf( stream, ",%s", reg1 ); - } else { /* MEMA FORMAT */ - fprintf( stream, "0x%x", (unsigned) offset ); - if (mode & 8) { - fprintf( stream, "(%s)", reg2 ); - } - fprintf( stream, ",%s", reg1 ); - } - break; - - case -2: /* STORE INSTRUCTION */ - if ( mode & 4 ){ /* MEMB FORMAT */ - fprintf( stream, "%s,", reg1 ); - ea( memaddr, mode, reg2, reg3, word1, word2 ); - } else { /* MEMA FORMAT */ - fprintf( stream, "%s,0x%x", reg1, (unsigned) offset ); - if (mode & 8) { - fprintf( stream, "(%s)", reg2 ); - } - } - break; - - case 1: /* BX/CALLX INSTRUCTION */ - if ( mode & 4 ){ /* MEMB FORMAT */ - ea( memaddr, mode, reg2, reg3, word1, word2 ); - } else { /* MEMA FORMAT */ - fprintf( stream, "0x%x", (unsigned) offset ); - if (mode & 8) { - fprintf( stream, "(%s)", reg2 ); - } - } - break; - } - - return len; -} - -/****************************************/ -/* REG format */ -/****************************************/ -static void -reg( word1 ) - unsigned long word1; -{ - int i, j; - int opcode; - int fp; - int m1, m2, m3; - int s1, s2; - int src, src2, dst; - char *mnemp; - - /* This lookup table is too sparse to make it worth typing in, but not - * so large as to make a sparse array necessary. We allocate the - * table at runtime, initialize all entries to empty, and copy the - * real ones in from an initialization table. - * - * NOTE: In this table, the meaning of 'numops' is: - * 1: single operand, which is NOT a destination. - * -1: single operand, which IS a destination. - * 2: 2 operands, the 2nd of which is NOT a destination. - * -2: 2 operands, the 2nd of which IS a destination. - * 3: 3 operands - * - * If an opcode mnemonic begins with "F", it is a floating-point - * opcode (the "F" is not printed). - */ - - static struct tabent *reg_tab = NULL; - static struct { int opcode; char *name; char numops; } reg_init[] = { -#define REG_MIN 0x580 - 0x580, "notbit", 3, - 0x581, "and", 3, - 0x582, "andnot", 3, - 0x583, "setbit", 3, - 0x584, "notand", 3, - 0x586, "xor", 3, - 0x587, "or", 3, - 0x588, "nor", 3, - 0x589, "xnor", 3, - 0x58a, "not", -2, - 0x58b, "ornot", 3, - 0x58c, "clrbit", 3, - 0x58d, "notor", 3, - 0x58e, "nand", 3, - 0x58f, "alterbit", 3, - 0x590, "addo", 3, - 0x591, "addi", 3, - 0x592, "subo", 3, - 0x593, "subi", 3, - 0x598, "shro", 3, - 0x59a, "shrdi", 3, - 0x59b, "shri", 3, - 0x59c, "shlo", 3, - 0x59d, "rotate", 3, - 0x59e, "shli", 3, - 0x5a0, "cmpo", 2, - 0x5a1, "cmpi", 2, - 0x5a2, "concmpo", 2, - 0x5a3, "concmpi", 2, - 0x5a4, "cmpinco", 3, - 0x5a5, "cmpinci", 3, - 0x5a6, "cmpdeco", 3, - 0x5a7, "cmpdeci", 3, - 0x5ac, "scanbyte", 2, - 0x5ae, "chkbit", 2, - 0x5b0, "addc", 3, - 0x5b2, "subc", 3, - 0x5cc, "mov", -2, - 0x5d8, "eshro", 3, - 0x5dc, "movl", -2, - 0x5ec, "movt", -2, - 0x5fc, "movq", -2, - 0x600, "synmov", 2, - 0x601, "synmovl", 2, - 0x602, "synmovq", 2, - 0x603, "cmpstr", 3, - 0x604, "movqstr", 3, - 0x605, "movstr", 3, - 0x610, "atmod", 3, - 0x612, "atadd", 3, - 0x613, "inspacc", -2, - 0x614, "ldphy", -2, - 0x615, "synld", -2, - 0x617, "fill", 3, - 0x630, "sdma", 3, - 0x631, "udma", 0, - 0x640, "spanbit", -2, - 0x641, "scanbit", -2, - 0x642, "daddc", 3, - 0x643, "dsubc", 3, - 0x644, "dmovt", -2, - 0x645, "modac", 3, - 0x646, "condrec", -2, - 0x650, "modify", 3, - 0x651, "extract", 3, - 0x654, "modtc", 3, - 0x655, "modpc", 3, - 0x656, "receive", -2, - 0x659, "sysctl", 3, - 0x660, "calls", 1, - 0x662, "send", 3, - 0x663, "sendserv", 1, - 0x664, "resumprcs", 1, - 0x665, "schedprcs", 1, - 0x666, "saveprcs", 0, - 0x668, "condwait", 1, - 0x669, "wait", 1, - 0x66a, "signal", 1, - 0x66b, "mark", 0, - 0x66c, "fmark", 0, - 0x66d, "flushreg", 0, - 0x66f, "syncf", 0, - 0x670, "emul", 3, - 0x671, "ediv", 3, - 0x673, "ldtime", -1, - 0x674, "Fcvtir", -2, - 0x675, "Fcvtilr", -2, - 0x676, "Fscalerl", 3, - 0x677, "Fscaler", 3, - 0x680, "Fatanr", 3, - 0x681, "Flogepr", 3, - 0x682, "Flogr", 3, - 0x683, "Fremr", 3, - 0x684, "Fcmpor", 2, - 0x685, "Fcmpr", 2, - 0x688, "Fsqrtr", -2, - 0x689, "Fexpr", -2, - 0x68a, "Flogbnr", -2, - 0x68b, "Froundr", -2, - 0x68c, "Fsinr", -2, - 0x68d, "Fcosr", -2, - 0x68e, "Ftanr", -2, - 0x68f, "Fclassr", 1, - 0x690, "Fatanrl", 3, - 0x691, "Flogeprl", 3, - 0x692, "Flogrl", 3, - 0x693, "Fremrl", 3, - 0x694, "Fcmporl", 2, - 0x695, "Fcmprl", 2, - 0x698, "Fsqrtrl", -2, - 0x699, "Fexprl", -2, - 0x69a, "Flogbnrl", -2, - 0x69b, "Froundrl", -2, - 0x69c, "Fsinrl", -2, - 0x69d, "Fcosrl", -2, - 0x69e, "Ftanrl", -2, - 0x69f, "Fclassrl", 1, - 0x6c0, "Fcvtri", -2, - 0x6c1, "Fcvtril", -2, - 0x6c2, "Fcvtzri", -2, - 0x6c3, "Fcvtzril", -2, - 0x6c9, "Fmovr", -2, - 0x6d9, "Fmovrl", -2, - 0x6e1, "Fmovre", -2, - 0x6e2, "Fcpysre", 3, - 0x6e3, "Fcpyrsre", 3, - 0x701, "mulo", 3, - 0x708, "remo", 3, - 0x70b, "divo", 3, - 0x741, "muli", 3, - 0x748, "remi", 3, - 0x749, "modi", 3, - 0x74b, "divi", 3, - 0x78b, "Fdivr", 3, - 0x78c, "Fmulr", 3, - 0x78d, "Fsubr", 3, - 0x78f, "Faddr", 3, - 0x79b, "Fdivrl", 3, - 0x79c, "Fmulrl", 3, - 0x79d, "Fsubrl", 3, - 0x79f, "Faddrl", 3, -#define REG_MAX 0x79f -#define REG_SIZ ((REG_MAX-REG_MIN+1) * sizeof(struct tabent)) - 0, NULL, 0 - }; - - if ( reg_tab == NULL ){ - reg_tab = (struct tabent *) xmalloc( REG_SIZ ); - memset( (void *) reg_tab, 0, REG_SIZ ); - for ( i = 0; reg_init[i].opcode != 0; i++ ){ - j = reg_init[i].opcode - REG_MIN; - reg_tab[j].name = reg_init[i].name; - reg_tab[j].numops = reg_init[i].numops; - } - } - - opcode = ((word1 >> 20) & 0xff0) | ((word1 >> 7) & 0xf); - i = opcode - REG_MIN; - - if ( (opcode<REG_MIN) || (opcode>REG_MAX) || (reg_tab[i].name==NULL) ){ - invalid( word1 ); - return; - } - - mnemp = reg_tab[i].name; - if ( *mnemp == 'F' ){ - fp = 1; - mnemp++; - } else { - fp = 0; - } - - fputs( mnemp, stream ); - - s1 = (word1 >> 5) & 1; - s2 = (word1 >> 6) & 1; - m1 = (word1 >> 11) & 1; - m2 = (word1 >> 12) & 1; - m3 = (word1 >> 13) & 1; - src = word1 & 0x1f; - src2 = (word1 >> 14) & 0x1f; - dst = (word1 >> 19) & 0x1f; - - if ( reg_tab[i].numops != 0 ){ - putc( '\t', stream ); - - switch ( reg_tab[i].numops ){ - case 1: - regop( m1, s1, src, fp ); - break; - case -1: - dstop( m3, dst, fp ); - break; - case 2: - regop( m1, s1, src, fp ); - putc( ',', stream ); - regop( m2, s2, src2, fp ); - break; - case -2: - regop( m1, s1, src, fp ); - putc( ',', stream ); - dstop( m3, dst, fp ); - break; - case 3: - regop( m1, s1, src, fp ); - putc( ',', stream ); - regop( m2, s2, src2, fp ); - putc( ',', stream ); - dstop( m3, dst, fp ); - break; - } - } -} - - -/* - * Print out effective address for memb instructions. - */ -static void -ea( memaddr, mode, reg2, reg3, word1, word2 ) - unsigned long memaddr; - int mode; - char *reg2, *reg3; -int word1; - unsigned int word2; -{ - int scale; - static int scale_tab[] = { 1, 2, 4, 8, 16 }; - - scale = (word1 >> 7) & 0x07; - if ( (scale > 4) || ((word1 >> 5) & 0x03 != 0) ){ - invalid( word1 ); - return; - } - scale = scale_tab[scale]; - - switch (mode) { - case 4: /* (reg) */ - fprintf( stream, "(%s)", reg2 ); - break; - case 5: /* displ+8(ip) */ - print_addr( word2+8+memaddr ); - break; - case 7: /* (reg)[index*scale] */ - if (scale == 1) { - fprintf( stream, "(%s)[%s]", reg2, reg3 ); - } else { - fprintf( stream, "(%s)[%s*%d]",reg2,reg3,scale); - } - break; - case 12: /* displacement */ - print_addr( word2 ); - break; - case 13: /* displ(reg) */ - print_addr( word2 ); - fprintf( stream, "(%s)", reg2 ); - break; - case 14: /* displ[index*scale] */ - print_addr( word2 ); - if (scale == 1) { - fprintf( stream, "[%s]", reg3 ); - } else { - fprintf( stream, "[%s*%d]", reg3, scale ); - } - break; - case 15: /* displ(reg)[index*scale] */ - print_addr( word2 ); - if (scale == 1) { - fprintf( stream, "(%s)[%s]", reg2, reg3 ); - } else { - fprintf( stream, "(%s)[%s*%d]",reg2,reg3,scale ); - } - break; - default: - invalid( word1 ); - return; - } -} - - -/************************************************/ -/* Register Instruction Operand */ -/************************************************/ -static void -regop( mode, spec, reg, fp ) - int mode, spec, reg, fp; -{ - if ( fp ){ /* FLOATING POINT INSTRUCTION */ - if ( mode == 1 ){ /* FP operand */ - switch ( reg ){ - case 0: fputs( "fp0", stream ); break; - case 1: fputs( "fp1", stream ); break; - case 2: fputs( "fp2", stream ); break; - case 3: fputs( "fp3", stream ); break; - case 16: fputs( "0f0.0", stream ); break; - case 22: fputs( "0f1.0", stream ); break; - default: putc( '?', stream ); break; - } - } else { /* Non-FP register */ - fputs( reg_names[reg], stream ); - } - } else { /* NOT FLOATING POINT */ - if ( mode == 1 ){ /* Literal */ - fprintf( stream, "%d", reg ); - } else { /* Register */ - if ( spec == 0 ){ - fputs( reg_names[reg], stream ); - } else { - fprintf( stream, "sf%d", reg ); - } - } - } -} - -/************************************************/ -/* Register Instruction Destination Operand */ -/************************************************/ -static void -dstop( mode, reg, fp ) - int mode, reg, fp; -{ - /* 'dst' operand can't be a literal. On non-FP instructions, register - * mode is assumed and "m3" acts as if were "s3"; on FP-instructions, - * sf registers are not allowed so m3 acts normally. - */ - if ( fp ){ - regop( mode, 0, reg, fp ); - } else { - regop( 0, mode, reg, fp ); - } -} - - -static void -invalid( word1 ) - int word1; -{ - fprintf( stream, ".word\t0x%08x", (unsigned) word1 ); -} - -static void -print_addr(a) -int a; -{ - fprintf( stream, "0x%x", (unsigned) a ); -} - -static void -put_abs( word1, word2 ) - unsigned long word1, word2; -{ -#ifdef IN_GDB - return; -#else - int len; - - switch ( (word1 >> 28) & 0xf ){ - case 0x8: - case 0x9: - case 0xa: - case 0xb: - case 0xc: - /* MEM format instruction */ - len = mem( 0, word1, word2, 1 ); - break; - default: - len = 4; - break; - } - - if ( len == 8 ){ - fprintf( stream, "%08x %08x\t", word1, word2 ); - } else { - fprintf( stream, "%08x \t", word1 ); - } -; - -#endif -} |