OpenE2K/binutils-gdb
12
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
962ac80464
binutils-gdb/opcodes/txvu-opc.c
Doug Evans 1a702a2431 checkpoint
1998-01-21 01:12:57 +00:00

1272 lines
39 KiB
C
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/* Opcode table for the TXVU
Copyright 1998 Free Software Foundation, Inc.
This program 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.
This program 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 this program; if not, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "ansidecl.h"
#include "dis-asm.h"
#include "opcode/txvu.h"
#ifndef NULL
#define NULL 0
#endif
#if defined (__STDC__) || defined (ALMOST_STDC)
#define XCONCAT2(a,b) a##b
#else
#define XCONCAT2(a,b) a/**/b
#endif
#define CONCAT2(a,b) XCONCAT2(a,b)
/* ??? One can argue it's preferable to have the PARSE_FN support in tc-vxvu.c
and the PRINT_FN support in txvu-dis.c. For this project I like having
them all in one place. */
#define PARSE_FN(fn) \
static long CONCAT2 (parse_,fn) \
PARAMS ((char **, const char **));
#define INSERT_FN(fn) \
static TXVU_INSN CONCAT2 (insert_,fn) \
PARAMS ((TXVU_INSN, const struct txvu_operand *, \
int, long, const char **))
#define EXTRACT_FN(fn) \
static long CONCAT2 (extract_,fn) \
PARAMS ((TXVU_INSN, const struct txvu_operand *, \
int, int *))
#define PRINT_FN(fn) \
static void CONCAT2 (print_,fn) \
PARAMS ((disassemble_info *, TXVU_INSN, long));
PARSE_FN (dotdest);
INSERT_FN (dotdest);
EXTRACT_FN (dotdest);
PRINT_FN (dotdest);
PARSE_FN (dotdest1);
PARSE_FN (bc);
PRINT_FN (sdest);
PARSE_FN (vfreg);
PRINT_FN (vfreg);
PARSE_FN (bcftreg);
PRINT_FN (bcftreg);
PARSE_FN (accdest);
PRINT_FN (accdest);
PARSE_FN (xyz);
PARSE_FN (ireg);
PRINT_FN (ireg);
PARSE_FN (freg);
PRINT_FN (freg);
PARSE_FN (ffstreg);
INSERT_FN (ffstreg);
EXTRACT_FN (ffstreg);
PRINT_FN (ffstreg);
PARSE_FN (vi01);
PRINT_FN (vi01);
INSERT_FN (luimm12);
EXTRACT_FN (luimm12);
INSERT_FN (luimm15);
EXTRACT_FN (luimm15);
/* Various types of TXVU operands, including insn suffixes.
Fields are:
BITS SHIFT FLAGS PARSE_FN INSERT_FN EXTRACT_FN PRINT_FN
Operand values are 128 + table index. This allows ASCII chars to be
included in the syntax spec. */
const struct txvu_operand txvu_operands[] =
{
/* place holder (??? not sure if needed) */
#define UNUSED 128
{ 0 },
/* Operands that exist in the same place for essentially the same purpose
in both upper and lower instructions. These don't have a U or L prefix.
Operands specific to the upper or lower instruction are so prefixed. */
/* Destination indicator attached to mnemonic, with leading '.'.
After parsing this, the value is stored in global `dest' so that the
register parser can verify the same choice of xyzw is used. */
#define DOTDEST (UNUSED + 1)
{ 4, TXVU_SHIFT_DEST, TXVU_OPERAND_SUFFIX,
parse_dotdest, insert_dotdest, extract_dotdest, print_dotdest },
/* ft reg, with vector specification same as DOTDEST */
#define VFTREG (DOTDEST + 1)
{ 5, TXVU_SHIFT_TREG, 0, parse_vfreg, 0, 0, print_vfreg },
/* fs reg, with vector specification same as DOTDEST */
#define VFSREG (VFTREG + 1)
{ 5, TXVU_SHIFT_SREG, 0, parse_vfreg, 0, 0, print_vfreg },
/* fd reg, with vector specification same as DOTDEST */
#define VFDREG (VFSREG + 1)
{ 5, TXVU_SHIFT_DREG, 0, parse_vfreg, 0, 0, print_vfreg },
/* Upper word operands. */
/* broadcast */
#define UBC (VFDREG + 1)
{ 2, 0, 0, parse_bc, 0, 0, print_sdest },
/* ftreg in broadcast case */
#define UBCFTREG (UBC + 1)
{ 5, TXVU_SHIFT_TREG, 0, parse_bcftreg, 0, 0, print_bcftreg },
/* accumulator dest */
#define UACCDEST (UBCFTREG + 1)
{ 0, 0, TXVU_OPERAND_FAKE, parse_accdest, 0, 0, print_accdest },
/* The XYZ operand is a fake one that is used to ensure only "xyz" is
specified. It simplifies the opmula and opmsub entries. */
#define UXYZ (UACCDEST + 1)
{ 0, 0, TXVU_OPERAND_FAKE, parse_xyz, 0, 0, 0 },
/* Lower word operands. */
/* 5 bit signed immediate. */
#define LIMM5 (UXYZ + 1)
{ 5, 6, TXVU_OPERAND_SIGNED, 0, 0, 0, 0 },
/* 11 bit signed immediate. */
#define LIMM11 (LIMM5 + 1)
{ 11, 0, TXVU_OPERAND_SIGNED, 0, 0, 0, 0 },
/* 15 bit unsigned immediate. */
#define LUIMM15 (LIMM11 + 1)
{ 15, 0, 0, 0, insert_luimm15, extract_luimm15, 0 },
/* ID register. */
#define LIDREG (LUIMM15 + 1)
{ 5, 6, 0, parse_ireg, 0, 0, print_ireg },
/* IS register. */
#define LISREG (LIDREG + 1)
{ 5, 11, 0, parse_ireg, 0, 0, print_ireg },
/* IT register. */
#define LITREG (LISREG + 1)
{ 5, 16, 0, parse_ireg, 0, 0, print_ireg },
/* FS reg, with FSF field selector. */
#define LFSFFSREG (LITREG + 1)
{ 5, 11, 0, parse_ffstreg, insert_ffstreg, extract_ffstreg, print_ffstreg },
/* FS reg, no selector (choice of x,y,z,w is provided by opcode). */
#define LFSREG (LFSFFSREG + 1)
{ 5, 11, 0, parse_freg, 0, 0, print_freg },
/* FT reg, with FTF field selector. */
#define LFTFFTREG (LFSREG + 1)
{ 5, 16, 0, parse_ffstreg, insert_ffstreg, extract_ffstreg, print_ffstreg },
/* VI01 register. */
#define LVI01 (LFTFFTREG + 1)
{ 0, 0, TXVU_OPERAND_FAKE, parse_vi01, 0, 0, print_vi01 },
/* 24 bit unsigned immediate. */
#define LUIMM24 (LVI01 + 1)
{ 24, 0, 0, 0, 0, 0, 0 },
/* 12 bit unsigned immediate, split into 1 and 11 bit pieces. */
#define LUIMM12 (LUIMM24 + 1)
{ 12, 0, 0, 0, insert_luimm12, extract_luimm12, 0 },
/* 11 bit pc-relative signed immediate. */
#define LPCREL11 (LUIMM12 + 1)
{ 11, 0, TXVU_OPERAND_SIGNED + TXVU_OPERAND_RELATIVE_BRANCH, 0, 0, 0, 0 },
/* Destination indicator, single letter only, with leading '.'. */
#define LDOTDEST1 (LPCREL11 + 1)
{ 4, TXVU_SHIFT_DEST, TXVU_OPERAND_SUFFIX,
/* Note that we borrow the insert/extract/print functions from the
vector case. */
parse_dotdest1, insert_dotdest, extract_dotdest, print_dotdest },
/* end of list place holder */
{ 0 }
};
/* Macros to put a field's value into the right place. */
/* ??? If assembler needs these, move to opcode/txvu.h. */
/* value X, B bits, shift S */
#define V(x,b,s) (((x) & ((1 << (b)) - 1)) << (s))
/* Field value macros for both upper and lower instructions.
These shift a value into the right place in the instruction. */
/* [FI] T reg field (remember it's V for value, not vector, here). */
#define VT(x) V ((x), 5, TXVU_SHIFT_TREG)
/* [FI] S reg field. */
#define VS(x) V ((x), 5, TXVU_SHIFT_SREG)
/* [FI] D reg field. */
#define VD(x) V ((x), 5, TXVU_SHIFT_DREG)
/* DEST field. */
#define VDEST(x) V ((x), 4, 21)
/* Masks for fields in both upper and lower instructions.
These mask out all bits but the ones for the field in the instruction. */
#define MT VT (~0)
#define MS VS (~0)
#define MD VD (~0)
#define MDEST VDEST (~0)
/* Upper instruction Value macros. */
/* Upper Flag bits. */
#define VUF(x) V ((x), 5, 27)
/* Upper REServed two bits next to flag bits. */
#define VURES(x) V ((x), 2, 25)
/* 4 bit opcode field. */
#define VUOP4(x) V ((x), 4, 2)
/* 6 bit opcode field. */
#define VUOP6(x) V ((x), 6, 0)
/* 9 bit opcode field. */
#define VUOP9(x) V ((x), 9, 2)
/* 11 bit opcode field. */
#define VUOP11(x) V ((x), 11, 0)
/* BroadCast field. */
#define VUBC(x) V ((x), 2, 0)
/* Upper instruction field masks. */
#define MUUBITS (VUF (~0) + VURES (~0))
#define MURES VURES (~0)
#define MUOP4 VUOP4 (~0)
#define MUOP6 VUOP6 (~0)
#define MUOP9 VUOP9 (~0)
#define MUOP11 VUOP11 (~0)
/* A space, separates instruction name (mnemonic + mnemonic operands) from
operands. */
#define SP ' '
/* Commas separate operands. */
#define C ','
/* Special I,P,Q,R operands. */
#define I 'i'
#define P 'p'
#define Q 'q'
#define R 'r'
/* TXVU instructions.
[??? some of these comments are left over from the ARC port from which
this code is borrowed, delete in time]
Longer versions of insns must appear before shorter ones (if gas sees
"lsr r2,r3,1" when it's parsing "lsr %a,%b" it will think the ",1" is
junk). This isn't necessary for `ld' because of the trailing ']'.
Instructions that are really macros based on other insns must appear
before the real insn so they're chosen when disassembling. Eg: The `mov'
insn is really the `and' insn.
This table is best viewed on a wide screen (161 columns). I'd prefer to
keep it this way. The rest of the file, however, should be viewable on an
80 column terminal. */
/* ??? This table also includes macros: asl, lsl, and mov. The ppc port has
a more general facility for dealing with macros which could be used if
we need to. */
/* These tables can't be `const' because members `next_asm' and `next_dis' are
computed at run-time. We could split this into two, as that would put the
constant stuff into a readonly section. */
struct txvu_opcode txvu_upper_opcodes[] = {
/* Macros appear first, so the disassembler will try them first. */
/* ??? Any aliases? */
/* ??? When close to being finished, clean up by aligning fields. */
/* The rest of these needn't be sorted, but it helps to find them if they are. */
{ "abs", { DOTDEST, SP, VFTREG, C, VFSREG }, MURES + MUOP11, VUOP11 (0x1fd) },
{ "add", { DOTDEST, SP, VFDREG, C, VFSREG, C, VFTREG }, MURES + MUOP6, VUOP6 (0x28) },
{ "addi", { DOTDEST, SP, VFDREG, C, VFSREG, C, I }, MURES + MT + MUOP6, VUOP6 (0x22) },
{ "addq", { DOTDEST, SP, VFDREG, C, VFSREG, C, Q }, MURES + MT + MUOP6, VUOP6 (0x20) },
{ "add", { UBC, DOTDEST, SP, VFDREG, C, VFSREG, C, UBCFTREG }, MURES + VUOP4 (~0), VUOP4 (0) },
{ "adda", { DOTDEST, SP, UACCDEST, C, VFSREG, C, VFTREG }, MURES + MUOP11, VUOP11 (0x2bc) },
{ "addai", { DOTDEST, SP, UACCDEST, C, VFSREG, C, I }, MURES + MT + MUOP11, VUOP11 (0x23e) },
{ "addaq", { DOTDEST, SP, UACCDEST, C, VFSREG, C, Q }, MURES + MT + MUOP11, VUOP11 (0x23c) },
{ "adda", { UBC, DOTDEST, SP, UACCDEST, C, VFSREG, C, UBCFTREG }, MURES + MUOP9, VUOP9 (0xf) },
{ "clip", { DOTDEST, SP, VFSREG }, MURES + MDEST + MT + MUOP11, VDEST (0xf) + VUOP11 (0x1ff) },
{ "ftoi0", { DOTDEST, SP, VFTREG, C, VFSREG }, MURES + MUOP11, VUOP11 (0x17c) },
{ "ftoi4", { DOTDEST, SP, VFTREG, C, VFSREG }, MURES + MUOP11, VUOP11 (0x17d) },
{ "ftoi12", { DOTDEST, SP, VFTREG, C, VFSREG }, MURES + MUOP11, VUOP11 (0x17e) },
{ "ftoi15", { DOTDEST, SP, VFTREG, C, VFSREG }, MURES + MUOP11, VUOP11 (0x17f) },
{ "itof0", { DOTDEST, SP, VFTREG, C, VFSREG }, MURES + MUOP11, VUOP11 (0x13c) },
{ "itof4", { DOTDEST, SP, VFTREG, C, VFSREG }, MURES + MUOP11, VUOP11 (0x13d) },
{ "itof12", { DOTDEST, SP, VFTREG, C, VFSREG }, MURES + MUOP11, VUOP11 (0x13e) },
{ "itof15", { DOTDEST, SP, VFTREG, C, VFSREG }, MURES + MUOP11, VUOP11 (0x13f) },
{ "madd", { DOTDEST, SP, VFDREG, C, VFSREG, C, VFTREG }, MURES + MUOP6, VUOP6 (0x29) },
{ "maddi", { DOTDEST, SP, VFDREG, C, VFSREG, C, I }, MURES + MT + MUOP6, VUOP6 (0x23) },
{ "maddq", { DOTDEST, SP, VFDREG, C, VFSREG, C, Q }, MURES + MT + MUOP6, VUOP6 (0x21) },
{ "madd", { UBC, DOTDEST, SP, VFDREG, C, VFSREG, C, UBCFTREG }, MURES + MUOP4, VUOP4 (0x2) },
{ "madda", { DOTDEST, SP, UACCDEST, C, VFSREG, C, VFTREG }, MURES + MUOP11, VUOP11 (0x2bd) },
{ "maddai", { DOTDEST, SP, UACCDEST, C, VFSREG, C, I }, MURES + MT + MUOP11, VUOP11 (0x23f) },
{ "maddaq", { DOTDEST, SP, UACCDEST, C, VFSREG, C, Q }, MURES + MT + MUOP11, VUOP11 (0x23d) },
{ "madda", { UBC, DOTDEST, SP, UACCDEST, C, VFSREG, C, UBCFTREG }, MURES + MUOP9, VUOP9 (0x2f) },
{ "max", { DOTDEST, SP, VFDREG, C, VFSREG, C, VFTREG }, MURES + MUOP6, VUOP6 (0x2b) },
{ "maxi", { DOTDEST, SP, VFDREG, C, VFSREG, C, I }, MURES + MT + MUOP6, VUOP6 (0x2d) },
{ "max", { UBC, DOTDEST, SP, VFDREG, C, VFSREG, C, UBCFTREG }, MURES + MUOP4, VUOP4 (0x4) },
/* ??? mini or min? */
{ "mini", { DOTDEST, SP, VFDREG, C, VFSREG, C, VFTREG }, MURES + MUOP6, VUOP6 (0x2f) },
{ "mini", { DOTDEST, SP, VFDREG, C, VFSREG, C, I }, MURES + MT + MUOP6, VUOP6 (0x1f) },
{ "mini", { UBC, DOTDEST, SP, VFDREG, C, VFSREG, C, UBCFTREG }, MURES + MUOP4, VUOP4 (0x5) },
{ "msub", { DOTDEST, SP, VFDREG, C, VFSREG, C, VFTREG }, MURES + MUOP6, VUOP6 (0x2d) },
{ "msubi", { DOTDEST, SP, VFDREG, C, VFSREG, C, I }, MURES + MT + MUOP6, VUOP6 (0x27) },
{ "msubq", { DOTDEST, SP, VFDREG, C, VFSREG, C, Q }, MURES + MT + MUOP6, VUOP6 (0x25) },
{ "msub", { UBC, DOTDEST, SP, VFDREG, C, VFSREG, C, UBCFTREG }, MURES + MUOP4, VUOP4 (0x3) },
{ "msuba", { DOTDEST, SP, UACCDEST, C, VFSREG, C, VFTREG }, MURES + MUOP11, VUOP11 (0x2fd) },
{ "msubai", { DOTDEST, SP, UACCDEST, C, VFSREG, C, I }, MURES + MT + MUOP11, VUOP11 (0x27f) },
{ "msubaq", { DOTDEST, SP, UACCDEST, C, VFSREG, C, Q }, MURES + MT + MUOP11, VUOP11 (0x27d) },
{ "msuba", { UBC, DOTDEST, SP, UACCDEST, C, VFSREG, C, UBCFTREG }, MURES + MUOP9, VUOP9 (0x3f) },
{ "mul", { DOTDEST, SP, VFDREG, C, VFSREG, C, VFTREG }, MURES + MUOP6, VUOP6 (0x2a) },
{ "muli", { DOTDEST, SP, VFDREG, C, VFSREG, C, I }, MURES + MT + MUOP6, VUOP6 (0x1e) },
{ "mulq", { DOTDEST, SP, VFDREG, C, VFSREG, C, Q }, MURES + MT + MUOP6, VUOP6 (0x1c) },
{ "mul", { UBC, DOTDEST, SP, VFDREG, C, VFSREG, C, UBCFTREG }, MURES + VUOP4 (~0), VUOP4 (6) },
{ "mula", { DOTDEST, SP, UACCDEST, C, VFSREG, C, VFTREG }, MURES + MUOP11, VUOP11 (0x2be) },
{ "mulai", { DOTDEST, SP, UACCDEST, C, VFSREG, C, I }, MURES + MT + MUOP11, VUOP11 (0x1fe) },
{ "mulaq", { DOTDEST, SP, UACCDEST, C, VFSREG, C, Q }, MURES + MT + MUOP11, VUOP11 (0x1fc) },
{ "mula", { UBC, DOTDEST, SP, UACCDEST, C, VFSREG, C, UBCFTREG }, MURES + MUOP9, VUOP9 (0x6f) },
{ "nop", { 0 }, MURES + MDEST + MT + MS + MUOP11, VUOP11 (0x2ff) },
{ "opmula", { DOTDEST, SP, UACCDEST, C, VFSREG, C, VFTREG, UXYZ }, MURES + MUOP11, VUOP11 (0x2fe) },
{ "opmsub", { DOTDEST, SP, VFDREG, C, VFSREG, C, VFTREG, UXYZ }, MURES + MUOP6, VUOP6 (0x2e) },
{ "sub", { DOTDEST, SP, VFDREG, C, VFSREG, C, VFTREG }, MURES + MUOP6, VUOP6 (0x2c) },
{ "subi", { DOTDEST, SP, VFDREG, C, VFSREG, C, I }, MURES + MT + MUOP6, VUOP6 (0x26) },
{ "subq", { DOTDEST, SP, VFDREG, C, VFSREG, C, Q }, MURES + MT + MUOP6, VUOP6 (0x24) },
{ "sub", { UBC, DOTDEST, SP, VFDREG, C, VFSREG, C, UBCFTREG }, MURES + VUOP4 (~0), VUOP4 (1) },
{ "suba", { DOTDEST, SP, UACCDEST, C, VFSREG, C, VFTREG }, MURES + MUOP11, VUOP11 (0x2fc) },
{ "subai", { DOTDEST, SP, UACCDEST, C, VFSREG, C, I }, MURES + MT + MUOP11, VUOP11 (0x27e) },
{ "subaq", { DOTDEST, SP, UACCDEST, C, VFSREG, C, Q }, MURES + MT + MUOP11, VUOP11 (0x27c) },
{ "suba", { UBC, DOTDEST, SP, UACCDEST, C, VFSREG, C, UBCFTREG }, MURES + MUOP9, VUOP9 (0x1f) }
};
const int txvu_upper_opcodes_count = sizeof (txvu_upper_opcodes) / sizeof (txvu_upper_opcodes[0]);
/* Lower instruction Value macros. */
/* 6 bit opcode. */
#define VLOP6(x) V ((x), 6, 0)
/* 7 bit opcode. */
#define VLOP7(x) V ((x), 7, 25)
/* 11 bit opcode. */
#define VLOP11(x) V ((x), 11, 0)
/* 11 bit immediate. */
#define VLIMM11(x) V ((x), 11, 0)
/* FTF field. */
#define VLFTF(x) V ((x), 2, 23)
/* FSF field. */
#define VLFSF(x) V ((x), 2, 21)
/* Upper bit of 12 bit unsigned immediate. */
#define VLUIMM12TOP(x) V ((x), 1, 21)
/* Upper 4 bits of 15 bit unsigned immediate. */
#define VLUIMM15TOP(x) VDEST (x)
/* Lower instruction field masks. */
#define MLOP6 VLOP6 (~0)
#define MLOP7 VLOP7 (~0)
#define MLOP11 VLOP11 (~0)
#define MLIMM11 VLIMM11 (~0)
#define MLB24 V (1, 1, 24)
#define MLUIMM12TOP VLUIMM12TOP (~0)
/* 12 bit unsigned immediates are split into two parts, 1 bit and 11 bits.
The upper 1 bit is part of the `dest' field. This mask is for the
other 3 bits of the dest field. */
#define MLUIMM12UNUSED V (7, 3, 22)
#define MLUIMM15TOP MDEST
struct txvu_opcode txvu_lower_opcodes[] = {
/* Macros appear first, so the disassembler will try them first. */
/* ??? Any aliases? */
/* ??? There isn't an explicit nop. Apparently it's "move vf0,vf0". */
{ "nop", { 0 }, 0xffffffff, VLOP7 (0x40) + VLIMM11 (0x33c) },
/* The rest of these needn't be sorted, but it helps to find them if they are. */
{ "b", { SP, LPCREL11 }, MLOP7 + MDEST + MT + MS, VLOP7 (0x20) },
{ "bal", { SP, LITREG, C, LPCREL11 }, MLOP7 + MDEST + MS, VLOP7 (0x21) },
{ "div", { SP, Q, C, LFSFFSREG, C, LFTFFTREG }, MLOP7 + MLOP11, VLOP7 (0x40) + VLOP11 (0x3bc) },
{ "eatan", { SP, P, C, LFSFFSREG }, MLOP7 + VLFTF (~0) + MT + MLOP11, VLOP7 (0x40) + VLOP11 (0x7fd) },
{ "eatanxy", { SP, P, C, LFSREG }, MLOP7 + MDEST + MT + MLOP11, VLOP7 (0x40) + VDEST (0xf) + VLOP11 (0x77c) },
{ "eatanxz", { SP, P, C, LFSREG }, MLOP7 + MDEST + MT + MLOP11, VLOP7 (0x40) + VDEST (0xf) + VLOP11 (0x77d) },
{ "eexp", { SP, P, C, LFSFFSREG }, MLOP7 + VLFTF (~0) + MT + MLOP11, VLOP7 (0x40) + VLOP11 (0x7fe) },
{ "eleng", { SP, P, C, LFSREG }, MLOP7 + MDEST + MT + MLOP11, VLOP7 (0x40) + VDEST (0xf) + VLOP11 (0x74e) },
{ "ercpr", { SP, P, C, LFSFFSREG }, MLOP7 + VLFTF (~0) + MT + MLOP11, VLOP7 (0x40) + VLOP11 (0x7be) },
{ "erleng", { SP, P, C, LFSREG }, MLOP7 + MDEST + MT + MLOP11, VLOP7 (0x40) + VDEST (0xf) + VLOP11 (0x73f) },
{ "ersadd", { SP, P, C, LFSREG }, MLOP7 + MDEST + MT + MLOP11, VLOP7 (0x40) + VDEST (0xf) + VLOP11 (0x73d) },
{ "ersqrt", { SP, P, C, LFSFFSREG }, MLOP7 + VLFTF (~0) + MT + MLOP11, VLOP7 (0x40) + VLOP11 (0x7bd) },
{ "esadd", { SP, P, C, LFSREG }, MLOP7 + MDEST + MT + MLOP11, VLOP7 (0x40) + VDEST (0xf) + VLOP11 (0x73c) },
{ "esin", { SP, P, C, LFSFFSREG }, MLOP7 + VLFTF (~0) + MT + MLOP11, VLOP7 (0x40) + VLOP11 (0x7fc) },
{ "esqrt", { SP, P, C, LFSFFSREG }, MLOP7 + VLFTF (~0) + MT + MLOP11, VLOP7 (0x40) + VLOP11 (0x7bc) },
{ "esum", { SP, P, C, LFSREG }, MLOP7 + MDEST + MT + MLOP11, VLOP7 (0x40) + VDEST (0xf) + VLOP11 (0x77e) },
{ "fcand", { SP, LVI01, C, LUIMM24 }, MLOP7 + MLB24, VLOP7 (0x12) },
{ "fceq", { SP, LVI01, C, LUIMM24 }, MLOP7 + MLB24, VLOP7 (0x10) },
{ "fcget", { SP, LITREG }, MLOP7 + MDEST + MS + MLIMM11, VLOP7 (0x1c) },
{ "fcor", { SP, LVI01, C, LUIMM24 }, MLOP7 + MLB24, VLOP7 (0x13) },
{ "fcset", { SP, LVI01, C, LUIMM24 }, MLOP7 + MLB24, VLOP7 (0x11) },
{ "fmand", { SP, LITREG, C, LISREG }, MLOP7 + MDEST + MLIMM11, VLOP7 (0x1a) },
{ "fmeq", { SP, LITREG, C, LISREG }, MLOP7 + MDEST + MLIMM11, VLOP7 (0x18) },
{ "fmor", { SP, LITREG, C, LISREG }, MLOP7 + MDEST + MLIMM11, VLOP7 (0x1b) },
{ "fsand", { SP, LITREG, C, LUIMM12 }, MLOP7 + MLUIMM12UNUSED + MS, VLOP7 (0x16) },
{ "fseq", { SP, LITREG, C, LUIMM12 }, MLOP7 + MLUIMM12UNUSED + MS, VLOP7 (0x14) },
{ "fsor", { SP, LITREG, C, LUIMM12 }, MLOP7 + MLUIMM12UNUSED + MS, VLOP7 (0x17) },
{ "fsset", { SP, LITREG, C, LUIMM12 }, MLOP7 + MLUIMM12UNUSED + MS, VLOP7 (0x15) },
{ "iadd", { SP, LIDREG, C, LISREG, C, LITREG }, MLOP7 + MDEST + MLOP6, VLOP7 (0x40) + VLOP6 (0x30) },
{ "iaddi", { SP, LITREG, C, LISREG, C, LIMM5 }, MLOP7 + MDEST + MLOP6, VLOP7 (0x40) + VLOP6 (0x32) },
{ "iaddiu", { SP, LITREG, C, LISREG, C, LUIMM15 }, MLOP7, VLOP7 (0x08) },
{ "iand", { SP, LIDREG, C, LISREG, C, LITREG }, MLOP7 + MDEST + MLOP6, VLOP7 (0x40) + VLOP6 (0x34) },
{ "ibeq", { SP, LITREG, C, LISREG, C, LPCREL11 }, MLOP7 + MDEST, VLOP7 (0x28) },
{ "ibgez", { SP, LISREG, C, LPCREL11 }, MLOP7 + MDEST + MT, VLOP7 (0x2f) },
{ "iblez", { SP, LISREG, C, LPCREL11 }, MLOP7 + MDEST + MT, VLOP7 (0x2e) },
{ "ibltz", { SP, LISREG, C, LPCREL11 }, MLOP7 + MDEST + MT, VLOP7 (0x2c) },
{ "ibne", { SP, LITREG, C, LISREG, C, LPCREL11 }, MLOP7 + MDEST, VLOP7 (0x29) },
/* FIXME: Need to not require commas around parens. */
{ "ilw", { LDOTDEST1, SP, LITREG, C, LIMM11, '(', LISREG, ')' }, MLOP7, VLOP7 (0x04) },
{ "ilwr", { LDOTDEST1, SP, LITREG, C, '(', LISREG, ')' }, MLOP7, VLOP7 (0x40) + VLIMM11 (0x3fe) },
{ "ior", { SP, LIDREG, C, LISREG, C, LITREG }, MLOP7 + MDEST + MLOP6, VLOP7 (0x40) + VLOP6 (0x34) },
{ "isub", { SP, LIDREG, C, LISREG, C, LITREG }, MLOP7 + MDEST + MLOP6, VLOP7 (0x40) + VLOP6 (0x31) },
{ "isubiu", { SP, LITREG, C, LISREG, C, LUIMM15 }, MLOP7, VLOP7 (0x09) },
{ "isw", { LDOTDEST1, SP, LITREG, C, LIMM11, '(', LISREG, ')' }, MLOP7, VLOP7 (0x05) },
{ "iswr", { LDOTDEST1, SP, LITREG, C, '(', LISREG, ')' }, MLOP7, VLOP7 (0x40) + VLIMM11 (0x3ff) },
{ "jalr", { SP, LITREG, C, LISREG }, MLOP7 + MDEST + MLIMM11, VLOP7 (0x25) },
{ "jr", { SP, LISREG }, MLOP7 + MDEST + MT + MLIMM11, VLOP7 (0x24) },
{ "lq", { DOTDEST, SP, VFTREG, C, LIMM11, '(', LISREG, ')' }, MLOP7, VLOP7 (0x00) },
/* FIXME: No commas around -/+. */
{ "lqd", { DOTDEST, SP, VFTREG, C, LIMM11, '(', '-', '-', LISREG, ')' }, MLOP7, VLOP7 (0x40) + VLIMM11 (0x37e) },
{ "lqi", { DOTDEST, SP, VFTREG, C, LIMM11, '(', LISREG, '+', '+', ')' }, MLOP7, VLOP7 (0x40) + VLIMM11 (0x37c) },
/* Only a single VF reg is allowed here. We can use VFTREG because LDOTDEST1
handles verifying only a single choice of xyzw is present. */
{ "mfir", { LDOTDEST1, SP, VFTREG, C, LISREG }, MLOP7 + MLIMM11, VLOP7 (0x40) + VLIMM11 (0x3fc) },
{ "mfp", { DOTDEST, SP, VFTREG, C, P }, MLOP7 + MS + MLIMM11, VLOP7 (0x40) + VLIMM11 (0x67c) },
{ "move", { DOTDEST, SP, VFTREG, C, VFSREG }, MLOP7 + MLIMM11, VLOP7 (0x40) + VLIMM11 (0x33c) },
{ "mr32", { DOTDEST, SP, VFTREG, C, VFSREG }, MLOP7 + MLIMM11, VLOP7 (0x40) + VLIMM11 (0x33d) },
{ "mtir", { LDOTDEST1, SP, LITREG, C, LFSREG }, MLOP7 + MLIMM11, VLOP7 (0x40) + VLIMM11 (0x3fd) },
{ "rget", { DOTDEST, SP, VFTREG, C, R }, MLOP7 + MS + MLIMM11, VLOP7 (0x40) + VLIMM11 (0x43d) },
{ "rinit", { SP, R, C, LFSFFSREG }, MLOP7 + VLFTF (~0) + MT + MLIMM11, VLOP7 (0x40) + VLIMM11 (0x43e) },
{ "rnext", { DOTDEST, SP, VFTREG, C, R }, MLOP7 + MS + MLIMM11, VLOP7 (0x40) + VLIMM11 (0x43c) },
{ "rsqrt", { SP, Q, C, LFSFFSREG, C, LFTFFTREG }, MLOP7 + MLIMM11, VLOP7 (0x40) + VLIMM11 (0x3be) },
{ "rxor", { R, C, LFSFFSREG }, MLOP7 + VLFTF (~0) + MT + MLIMM11, VLOP7 (0x40) + VLIMM11 (0x43f) },
{ "sq", { DOTDEST, SP, VFTREG, C, LIMM11, '(', LISREG, ')' }, MLOP7, VLOP7 (0x01) },
/* FIXME: No commas around -/+. */
{ "sqd", { DOTDEST, SP, VFTREG, C, LIMM11, '(', '-', '-', LISREG, ')' }, MLOP7, VLOP7 (0x40) + VLIMM11 (0x37f) },
{ "sqi", { DOTDEST, SP, VFTREG, C, LIMM11, '(', LISREG, '+', '+', ')' }, MLOP7, VLOP7 (0x40) + VLIMM11 (0x37d) },
{ "sqrt", { SP, Q, C, LFTFFTREG }, MLOP7 + VLFSF (~0) + MS + MLIMM11, VLOP7 (0x40) + VLIMM11 (0x3bd) },
{ "waitp", { 0 }, 0xffffffff, VLOP7 (0x40) + VLIMM11 (0x7bf) },
{ "waitq", { 0 }, 0xffffffff, VLOP7 (0x40) + VLIMM11 (0x3bf) },
{ "xgkick", { LISREG }, MLOP7 + MDEST + MT + MLIMM11, VLOP7 (0x40) + VLIMM11 (0x6fc) },
{ "xitop", { LITREG }, MLOP7 + MDEST + MS + MLIMM11, VLOP7 (0x40) + VLIMM11 (0x6bd) },
{ "xtop", { LITREG }, MLOP7 + MDEST + MS + MLIMM11, VLOP7 (0x40) + VLIMM11 (0x6bc) }
};
const int txvu_lower_opcodes_count = sizeof (txvu_lower_opcodes) / sizeof (txvu_lower_opcodes[0]);
/* Indexed by first letter of opcode. Points to chain of opcodes with same
first letter. */
/* ??? One can certainly use a better hash. Later. */
static struct txvu_opcode *upper_opcode_map[26 + 1];
static struct txvu_opcode *lower_opcode_map[26 + 1];
/* Indexed by insn code. Points to chain of opcodes with same insn code. */
static struct txvu_opcode *upper_icode_map[(1 << TXVU_ICODE_HASH_SIZE) - 1];
static struct txvu_opcode *lower_icode_map[(1 << TXVU_ICODE_HASH_SIZE) - 1];
/* Initialize any tables that need it.
Must be called once at start up (or when first needed).
FLAGS is currently unused but is intended to control initialization. */
void
txvu_opcode_init_tables (flags)
int flags;
{
static int init_p = 0;
/* We may be intentionally called more than once (for example gdb will call
us each time the user switches cpu). These tables only need to be init'd
once though. */
/* ??? We can remove the need for txvu_opcode_supported by taking it into
account here, but I'm not sure I want to do that yet (if ever). */
if (!init_p)
{
int i,n;
memset (upper_opcode_map, 0, sizeof (upper_opcode_map));
memset (upper_icode_map, 0, sizeof (upper_icode_map));
/* Scan the table backwards so macros appear at the front. */
for (i = txvu_upper_opcodes_count - 1; i >= 0; --i)
{
int opcode_hash = TXVU_HASH_UPPER_OPCODE (txvu_upper_opcodes[i].mnemonic);
int icode_hash = TXVU_HASH_UPPER_ICODE (txvu_upper_opcodes[i].value);
txvu_upper_opcodes[i].next_asm = upper_opcode_map[opcode_hash];
upper_opcode_map[opcode_hash] = &txvu_upper_opcodes[i];
txvu_upper_opcodes[i].next_dis = upper_icode_map[icode_hash];
upper_icode_map[icode_hash] = &txvu_upper_opcodes[i];
}
memset (lower_opcode_map, 0, sizeof (lower_opcode_map));
memset (lower_icode_map, 0, sizeof (lower_icode_map));
/* Scan the table backwards so macros appear at the front. */
for (i = txvu_lower_opcodes_count - 1; i >= 0; --i)
{
int opcode_hash = TXVU_HASH_LOWER_OPCODE (txvu_lower_opcodes[i].mnemonic);
int icode_hash = TXVU_HASH_LOWER_ICODE (txvu_lower_opcodes[i].value);
txvu_lower_opcodes[i].next_asm = lower_opcode_map[opcode_hash];
lower_opcode_map[opcode_hash] = &txvu_lower_opcodes[i];
txvu_lower_opcodes[i].next_dis = lower_icode_map[icode_hash];
lower_icode_map[icode_hash] = &txvu_lower_opcodes[i];
}
init_p = 1;
}
}
/* Return the first insn in the chain for assembling upper INSN. */
const struct txvu_opcode *
txvu_upper_opcode_lookup_asm (insn)
const char *insn;
{
return upper_opcode_map[TXVU_HASH_UPPER_OPCODE (insn)];
}
/* Return the first insn in the chain for assembling lower INSN. */
const struct txvu_opcode *
txvu_lower_opcode_lookup_asm (insn)
const char *insn;
{
return lower_opcode_map[TXVU_HASH_LOWER_OPCODE (insn)];
}
/* Return the first insn in the chain for disassembling upper INSN. */
const struct txvu_opcode *
txvu_upper_opcode_lookup_dis (insn)
TXVU_INSN insn;
{
return upper_icode_map[TXVU_HASH_UPPER_ICODE (insn)];
}
/* Return the first insn in the chain for disassembling lower INSN. */
const struct txvu_opcode *
txvu_lower_opcode_lookup_dis (insn)
TXVU_INSN insn;
{
return lower_icode_map[TXVU_HASH_LOWER_ICODE (insn)];
}
/* Value of DEST in use.
Each of the registers must specify the same value as the opcode.
??? Perhaps remove the duplication? */
static int dest;
/* Value of BC to use.
The register specified for the ftreg must match the broadcast register
specified in the opcode. */
static int bc;
/* Init fns.
These are called before doing each of the respective activities. */
/* Called by the assembler before parsing an instruction. */
void
txvu_opcode_init_parse ()
{
dest = -1;
bc = -1;
}
/* Called by the disassembler before printing an instruction. */
void
txvu_opcode_init_print ()
{
dest = -1;
bc = -1;
}
/* Multiple destination choice support.
The "dest" string selects any combination of x,y,z,w.
[The letters are ordered that way to follow the manual's style.] */
/* Utility to parse a `dest' spec.
Return the found value.
*PSTR is set to the character that terminated the parsing.
It is up to the caller to do any error checking. */
static long
_parse_dest (pstr)
char **pstr;
{
long dest = 0;
while (**pstr)
{
switch (**pstr)
{
case 'x' : case 'X' : dest |= TXVU_DEST_X; break;
case 'y' : case 'Y' : dest |= TXVU_DEST_Y; break;
case 'z' : case 'Z' : dest |= TXVU_DEST_Z; break;
case 'w' : case 'W' : dest |= TXVU_DEST_W; break;
default : return dest;
}
++*pstr;
}
return dest;
}
static long
parse_dotdest (pstr, errmsg)
char **pstr;
const char **errmsg;
{
long dest;
if (**pstr != '.')
{
*errmsg = "missing `.'";
return 0;
}
++*pstr;
dest = _parse_dest (pstr);
if (dest == 0 || isalnum (**pstr))
{
*errmsg = "invalid `dest'";
return 0;
}
*errmsg = NULL;
return dest;
}
/* Parse a `dest' spec where only a single letter is allowed,
but the encoding handles all four. */
static long
parse_dotdest1 (pstr, errmsg)
char **pstr;
const char **errmsg;
{
char c;
long dest;
if (**pstr != '.')
{
*errmsg = "missing `.'";
return 0;
}
++*pstr;
switch (**pstr)
{
case 'x' : case 'X' : dest |= TXVU_DEST_X; break;
case 'y' : case 'Y' : dest |= TXVU_DEST_Y; break;
case 'z' : case 'Z' : dest |= TXVU_DEST_Z; break;
case 'w' : case 'W' : dest |= TXVU_DEST_W; break;
default : *errmsg = "invalid `dest'"; return 0;
}
++*pstr;
c == tolower (**pstr);
if (c == 'x' || c == 'y' || c == 'z' || c == 'w')
{
*errmsg = "only one of x,y,z,w can be specified";
return 0;
}
if (isalnum (**pstr))
{
*errmsg = "invalid `dest'";
return 0;
}
*errmsg = NULL;
return dest;
}
static TXVU_INSN
insert_dotdest (insn, operand, mods, value, errmsg)
TXVU_INSN insn;
const struct txvu_operand *operand;
int mods;
long value;
const char **errmsg;
{
/* Record the DEST value in use so the register parser can use it. */
dest = value;
if (errmsg)
*errmsg = NULL;
return insn |= value << operand->shift;
}
static long
extract_dotdest (insn, operand, mods, pinvalid)
TXVU_INSN insn;
const struct txvu_operand *operand;
int mods;
int *pinvalid;
{
/* Record the DEST value in use so the register printer can use it. */
dest = (insn >> operand->shift) & ((1 << operand->bits) - 1);
return dest;
}
/* Utility to print a multiple dest spec. */
static void
_print_dest (info, insn, value)
disassemble_info *info;
TXVU_INSN insn;
long value;
{
if (value & TXVU_DEST_X)
(*info->fprintf_func) (info->stream, "x");
if (value & TXVU_DEST_Y)
(*info->fprintf_func) (info->stream, "y");
if (value & TXVU_DEST_Z)
(*info->fprintf_func) (info->stream, "z");
if (value & TXVU_DEST_W)
(*info->fprintf_func) (info->stream, "w");
}
static void
print_dotdest (info, insn, value)
disassemble_info *info;
TXVU_INSN insn;
long value;
{
(*info->fprintf_func) (info->stream, ".");
_print_dest (info, insn, value);
}
/* Utilities for single destination choice handling. */
static long
_parse_sdest (pstr, errmsg)
char **pstr;
const char **errmsg;
{
char c;
long dest = 0;
switch (**pstr)
{
case 'x' : case 'X' : dest = TXVU_SDEST_X; break;
case 'y' : case 'Y' : dest = TXVU_SDEST_Y; break;
case 'z' : case 'Z' : dest = TXVU_SDEST_Z; break;
case 'w' : case 'W' : dest = TXVU_SDEST_W; break;
default : *errmsg = "only one of x,y,z,w can be specified"; return 0;
}
++*pstr;
c == tolower (**pstr);
if (c == 'x' || c == 'y' || c == 'z' || c == 'w')
{
*errmsg = "only one of x,y,z,w can be specified";
return 0;
}
if (isalnum (**pstr))
{
*errmsg = "invalid `dest'";
return 0;
}
*errmsg = NULL;
return dest;
}
static void
print_sdest (info, insn, value)
disassemble_info *info;
TXVU_INSN insn;
long value;
{
char c;
switch (value)
{
case TXVU_SDEST_X : c = 'x'; break;
case TXVU_SDEST_Y : c = 'y'; break;
case TXVU_SDEST_Z : c = 'z'; break;
case TXVU_SDEST_W : c = 'w'; break;
}
(*info->fprintf_func) (info->stream, "%c", c);
}
/* Broadcase field. */
static long
parse_bc (pstr, errmsg)
char **pstr;
const char **errmsg;
{
long value = _parse_sdest (pstr, errmsg);
if (*errmsg)
return 0;
/* Save value for later verification in register parsing. */
bc = value;
return value;
}
/* During the extraction process, save the bc field for use in
printing the bc register. */
static long
extract_bc (insn, operand, mods, pinvalid)
TXVU_INSN insn;
const struct txvu_operand *operand;
int mods;
int *pinvalid;
{
bc = insn & 3;
return bc;
}
static long
parse_vfreg (pstr, errmsg)
char **pstr;
const char **errmsg;
{
char *str = *pstr;
char *start;
long reg;
int reg_dest;
if (tolower (str[0]) != 'v'
|| tolower (str[1]) != 'f')
{
*errmsg = "unknown register";
return 0;
}
/* FIXME: quick hack until the framework works. */
start = str = str + 2;
while (*str && isdigit (*str))
++str;
reg = atoi (start);
if (reg < 0 || reg > 31)
{
*errmsg = "invalid register number";
return 0;
}
reg_dest = _parse_dest (&str);
if (reg_dest == 0 || isalnum (*str))
{
*errmsg = "invalid `dest'";
return 0;
}
if (reg_dest != dest)
{
*errmsg = "register `dest' does not match instruction `dest'";
return 0;
}
*pstr = str;
*errmsg = NULL;
return reg;
}
static void
print_vfreg (info, insn, value)
disassemble_info *info;
TXVU_INSN insn;
long value;
{
(*info->fprintf_func) (info->stream, "vf%ld", value);
_print_dest (info, insn, dest);
}
/* FT register in broadcast case. */
static long
parse_bcftreg (pstr, errmsg)
char **pstr;
const char **errmsg;
{
char *str = *pstr;
char *start;
long reg;
int reg_bc;
if (tolower (str[0]) != 'v'
|| tolower (str[1]) != 'f')
{
*errmsg = "unknown register";
return 0;
}
/* FIXME: quick hack until the framework works. */
start = str = str + 2;
while (*str && isdigit (*str))
++str;
reg = atoi (start);
if (reg < 0 || reg > 31)
{
*errmsg = "invalid register number";
return 0;
}
reg_bc = _parse_sdest (&str, errmsg);
if (*errmsg)
return 0;
if (reg_bc != bc)
{
*errmsg = "register `bc' does not match instruction `bc'";
return 0;
}
*pstr = str;
*errmsg = NULL;
return reg;
}
static void
print_bcftreg (info, insn, value)
disassemble_info *info;
TXVU_INSN insn;
long value;
{
(*info->fprintf_func) (info->stream, "vf%ld", value);
print_sdest (info, insn, bc);
}
/* ACC handling. */
static long
parse_accdest (pstr, errmsg)
char **pstr;
const char **errmsg;
{
char *str = *pstr;
long acc_dest = 0;
if (strncasecmp (str, "acc", 3) != 0)
{
*errmsg = "expecting `acc'";
return 0;
}
str += 3;
acc_dest = _parse_dest (&str);
if (acc_dest == 0 || isalnum (*str))
{
*errmsg = "invalid `dest'";
return 0;
}
if (acc_dest != dest)
{
*errmsg = "acc `dest' does not match instruction `dest'";
return 0;
}
*pstr = str;
*errmsg = NULL;
/* Value isn't used, but we must return something. */
return 0;
}
static void
print_accdest (info, insn, value)
disassemble_info *info;
TXVU_INSN insn;
long value;
{
(*info->fprintf_func) (info->stream, "acc");
_print_dest (info, insn, value);
}
/* XYZ operand handling.
This simplifies the opmula,opmsub entries by keeping them equivalent to
the others. */
static long
parse_xyz (pstr, errmsg)
char **pstr;
const char **errmsg;
{
if (dest != (TXVU_DEST_X | TXVU_DEST_Y | TXVU_DEST_Z))
{
*errmsg = "expecting `xyz' for `dest' value";
return 0;
}
return 0;
}
/* F[ST] register using selector in F[ST]F field.
Internally, the value is encoded in 7 bits: the 2 bit xyzw indicator
followed by the 5 bit register number. */
static long
parse_ffstreg (pstr, errmsg)
char **pstr;
const char **errmsg;
{
char *str = *pstr;
char *start;
int reg, xyzw;
if (tolower (str[0]) != 'v'
|| tolower (str[1]) != 'f')
{
*errmsg = "unknown register";
return 0;
}
/* FIXME: quick hack until the framework works. */
start = str = str + 2;
while (*str && isdigit (*str))
++str;
reg = atoi (start);
if (reg < 0 || reg > 31)
{
*errmsg = "invalid register number";
return 0;
}
xyzw = _parse_sdest (&str, errmsg);
if (*errmsg)
return 0;
*pstr = str;
*errmsg = NULL;
return reg | (xyzw << 5);
}
static void
print_ffstreg (info, insn, value)
disassemble_info *info;
TXVU_INSN insn;
long value;
{
(*info->fprintf_func) (info->stream, "vf%ld", value & TXVU_MASK_REG);
print_sdest (info, insn, (value >> 5) & 3);
}
static TXVU_INSN
insert_ffstreg (insn, operand, mods, value, errmsg)
TXVU_INSN insn;
const struct txvu_operand *operand;
int mods;
long value;
const char **errmsg;
{
if (operand->shift == TXVU_SHIFT_SREG)
return insn | VLFSF (value >> 5) | VS (value);
else
return insn | VLFTF (value >> 5) | VT (value);
}
static long
extract_ffstreg (insn, operand, mods, pinvalid)
TXVU_INSN insn;
const struct txvu_operand *operand;
int mods;
int *pinvalid;
{
if (operand->shift == TXVU_SHIFT_SREG)
return (((insn & VLFSF (~0)) >> 21) << 5) | VS (insn);
else
return (((insn & VLFTF (~0)) >> 21) << 5) | VT (insn);
}
/* F register. */
static long
parse_freg (pstr, errmsg)
char **pstr;
const char **errmsg;
{
char *str = *pstr;
char *start;
long reg;
int reg_bc;
if (tolower (str[0]) != 'v'
|| tolower (str[1]) != 'f')
{
*errmsg = "unknown register";
return 0;
}
/* FIXME: quick hack until the framework works. */
start = str = str + 2;
while (*str && isdigit (*str))
++str;
reg = atoi (start);
if (reg < 0 || reg > 31)
{
*errmsg = "invalid register number";
return 0;
}
*pstr = str;
*errmsg = NULL;
return reg;
}
static void
print_freg (info, insn, value)
disassemble_info *info;
TXVU_INSN insn;
long value;
{
(*info->fprintf_func) (info->stream, "vf%ld", value);
}
/* I register. */
static long
parse_ireg (pstr, errmsg)
char **pstr;
const char **errmsg;
{
char *str = *pstr;
char *start;
long reg;
int reg_bc;
if (tolower (str[0]) != 'v'
|| tolower (str[1]) != 'i')
{
*errmsg = "unknown register";
return 0;
}
/* FIXME: quick hack until the framework works. */
start = str = str + 2;
while (*str && isdigit (*str))
++str;
reg = atoi (start);
if (reg < 0 || reg > 31)
{
*errmsg = "invalid register number";
return 0;
}
*pstr = str;
*errmsg = NULL;
return reg;
}
static void
print_ireg (info, insn, value)
disassemble_info *info;
TXVU_INSN insn;
long value;
{
(*info->fprintf_func) (info->stream, "vi%ld", value);
}
/* VI01 register. */
static long
parse_vi01 (pstr, errmsg)
char **pstr;
const char **errmsg;
{
char *str = *pstr;
char *start;
long reg;
int reg_bc;
if (tolower (str[0]) != 'v'
|| tolower (str[1]) != 'i')
{
*errmsg = "unknown register";
return 0;
}
/* FIXME: quick hack until the framework works. */
start = str = str + 2;
while (*str && isdigit (*str))
++str;
reg = atoi (start);
if (reg != 1)
{
*errmsg = "vi01 required here";
return 0;
}
*pstr = str;
*errmsg = NULL;
return reg;
}
static void
print_vi01 (info, insn, value)
disassemble_info *info;
TXVU_INSN insn;
long value;
{
(*info->fprintf_func) (info->stream, "vi01");
}
/* Lower instruction 12 bit unsigned immediate. */
static TXVU_INSN
insert_luimm12 (insn, operand, mods, value, errmsg)
TXVU_INSN insn;
const struct txvu_operand *operand;
int mods;
long value;
const char **errmsg;
{
return insn | VLUIMM12TOP ((value & (1 << 11)) != 0) | VLIMM11 (value);
}
static long
extract_luimm12 (insn, operand, mods, pinvalid)
TXVU_INSN insn;
const struct txvu_operand *operand;
int mods;
int *pinvalid;
{
return (((insn & MLUIMM12TOP) != 0) << 11) | VLIMM11 (insn);
}
/* Lower instruction 15 bit unsigned immediate. */
static TXVU_INSN
insert_luimm15 (insn, operand, mods, value, errmsg)
TXVU_INSN insn;
const struct txvu_operand *operand;
int mods;
long value;
const char **errmsg;
{
return insn | VLUIMM15TOP (value >> 11) | VLIMM11 (value);
}
static long
extract_luimm15 (insn, operand, mods, pinvalid)
TXVU_INSN insn;
const struct txvu_operand *operand;
int mods;
int *pinvalid;
{
return (((insn & MLUIMM15TOP) >> 21) << 11) | VLIMM11 (insn);
}
Reference in New Issue View Git Blame Copy Permalink