1645 lines
42 KiB
Text
1645 lines
42 KiB
Text
/* rx-parse.y Renesas RX parser
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Copyright (C) 2008-2015 Free Software Foundation, Inc.
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This file is part of GAS, the GNU Assembler.
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GAS is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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GAS is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GAS; see the file COPYING. If not, write to the Free
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Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
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02110-1301, USA. */
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%{
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#include "as.h"
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#include "safe-ctype.h"
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#include "rx-defs.h"
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static int rx_lex (void);
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#define COND_EQ 0
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#define COND_NE 1
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#define MEMEX 0x06
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#define BSIZE 0
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#define WSIZE 1
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#define LSIZE 2
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/* .sb .sw .l .uw */
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static int sizemap[] = { BSIZE, WSIZE, LSIZE, WSIZE };
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/* Ok, here are the rules for using these macros...
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B*() is used to specify the base opcode bytes. Fields to be filled
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in later, leave zero. Call this first.
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F() and FE() are used to fill in fields within the base opcode bytes. You MUST
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call B*() before any F() or FE().
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[UN]*O*(), PC*() appends operands to the end of the opcode. You
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must call P() and B*() before any of these, so that the fixups
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have the right byte location.
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O = signed, UO = unsigned, NO = negated, PC = pcrel
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IMM() adds an immediate and fills in the field for it.
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NIMM() same, but negates the immediate.
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NBIMM() same, but negates the immediate, for sbb.
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DSP() adds a displacement, and fills in the field for it.
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Note that order is significant for the O, IMM, and DSP macros, as
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they append their data to the operand buffer in the order that you
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call them.
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Use "disp" for displacements whenever possible; this handles the
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"0" case properly. */
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#define B1(b1) rx_base1 (b1)
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#define B2(b1, b2) rx_base2 (b1, b2)
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#define B3(b1, b2, b3) rx_base3 (b1, b2, b3)
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#define B4(b1, b2, b3, b4) rx_base4 (b1, b2, b3, b4)
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/* POS is bits from the MSB of the first byte to the LSB of the last byte. */
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#define F(val,pos,sz) rx_field (val, pos, sz)
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#define FE(exp,pos,sz) rx_field (exp_val (exp), pos, sz);
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#define O1(v) rx_op (v, 1, RXREL_SIGNED); rx_range (v, -128, 255)
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#define O2(v) rx_op (v, 2, RXREL_SIGNED); rx_range (v, -32768, 65536)
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#define O3(v) rx_op (v, 3, RXREL_SIGNED); rx_range (v, -8388608, 16777216)
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#define O4(v) rx_op (v, 4, RXREL_SIGNED)
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#define UO1(v) rx_op (v, 1, RXREL_UNSIGNED); rx_range (v, 0, 255)
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#define UO2(v) rx_op (v, 2, RXREL_UNSIGNED); rx_range (v, 0, 65536)
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#define UO3(v) rx_op (v, 3, RXREL_UNSIGNED); rx_range (v, 0, 16777216)
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#define UO4(v) rx_op (v, 4, RXREL_UNSIGNED)
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#define NO1(v) rx_op (v, 1, RXREL_NEGATIVE)
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#define NO2(v) rx_op (v, 2, RXREL_NEGATIVE)
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#define NO3(v) rx_op (v, 3, RXREL_NEGATIVE)
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#define NO4(v) rx_op (v, 4, RXREL_NEGATIVE)
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#define PC1(v) rx_op (v, 1, RXREL_PCREL)
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#define PC2(v) rx_op (v, 2, RXREL_PCREL)
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#define PC3(v) rx_op (v, 3, RXREL_PCREL)
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#define IMM_(v,pos,size) F (immediate (v, RXREL_SIGNED, pos, size), pos, 2); \
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if (v.X_op != O_constant && v.X_op != O_big) rx_linkrelax_imm (pos)
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#define IMM(v,pos) IMM_ (v, pos, 32)
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#define IMMW(v,pos) IMM_ (v, pos, 16); rx_range (v, -32768, 65536)
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#define IMMB(v,pos) IMM_ (v, pos, 8); rx_range (v, -128, 255)
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#define NIMM(v,pos) F (immediate (v, RXREL_NEGATIVE, pos, 32), pos, 2)
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#define NBIMM(v,pos) F (immediate (v, RXREL_NEGATIVE_BORROW, pos, 32), pos, 2)
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#define DSP(v,pos,msz) if (!v.X_md) rx_relax (RX_RELAX_DISP, pos); \
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else rx_linkrelax_dsp (pos); \
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F (displacement (v, msz), pos, 2)
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#define id24(a,b2,b3) B3 (0xfb+a, b2, b3)
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static void rx_check_float_support (void);
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static int rx_intop (expressionS, int, int);
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static int rx_uintop (expressionS, int);
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static int rx_disp3op (expressionS);
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static int rx_disp5op (expressionS *, int);
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static int rx_disp5op0 (expressionS *, int);
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static int exp_val (expressionS exp);
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static expressionS zero_expr (void);
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static int immediate (expressionS, int, int, int);
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static int displacement (expressionS, int);
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static void rtsd_immediate (expressionS);
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static void rx_range (expressionS, int, int);
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static int need_flag = 0;
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static int rx_in_brackets = 0;
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static int rx_last_token = 0;
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static char * rx_init_start;
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static char * rx_last_exp_start = 0;
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static int sub_op;
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static int sub_op2;
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#define YYDEBUG 1
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#define YYERROR_VERBOSE 1
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%}
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%name-prefix="rx_"
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%union {
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int regno;
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expressionS exp;
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}
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%type <regno> REG FLAG CREG BCND BMCND SCCND
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%type <regno> flag bwl bw memex
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%type <exp> EXPR disp
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%token REG FLAG CREG
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%token EXPR UNKNOWN_OPCODE IS_OPCODE
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%token DOT_S DOT_B DOT_W DOT_L DOT_A DOT_UB DOT_UW
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%token ABS ADC ADD AND_
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%token BCLR BCND BMCND BNOT BRA BRK BSET BSR BTST
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%token CLRPSW CMP
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%token DBT DIV DIVU
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%token EDIV EDIVU EMUL EMULU
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%token FADD FCMP FDIV FMUL FREIT FSUB FTOI
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%token INT ITOF
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%token JMP JSR
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%token MACHI MACLO MAX MIN MOV MOVU MUL MULHI MULLO MULU MVFACHI MVFACMI MVFACLO
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%token MVFC MVTACHI MVTACLO MVTC MVTIPL
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%token NEG NOP NOT
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%token OR
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%token POP POPC POPM PUSH PUSHA PUSHC PUSHM
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%token RACW REIT REVL REVW RMPA ROLC RORC ROTL ROTR ROUND RTE RTFI RTS RTSD
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%token SAT SATR SBB SCCND SCMPU SETPSW SHAR SHLL SHLR SMOVB SMOVF
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%token SMOVU SSTR STNZ STOP STZ SUB SUNTIL SWHILE
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%token TST
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%token WAIT
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%token XCHG XOR
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%%
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/* ====================================================================== */
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statement :
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UNKNOWN_OPCODE
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{ as_bad (_("Unknown opcode: %s"), rx_init_start); }
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/* ---------------------------------------------------------------------- */
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| BRK
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{ B1 (0x00); }
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| DBT
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{ B1 (0x01); }
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| RTS
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{ B1 (0x02); }
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| NOP
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{ B1 (0x03); }
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/* ---------------------------------------------------------------------- */
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| BRA EXPR
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{ if (rx_disp3op ($2))
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{ B1 (0x08); rx_disp3 ($2, 5); }
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else if (rx_intop ($2, 8, 8))
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{ B1 (0x2e); PC1 ($2); }
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else if (rx_intop ($2, 16, 16))
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{ B1 (0x38); PC2 ($2); }
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else if (rx_intop ($2, 24, 24))
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{ B1 (0x04); PC3 ($2); }
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else
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{ rx_relax (RX_RELAX_BRANCH, 0);
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rx_linkrelax_branch ();
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/* We'll convert this to a longer one later if needed. */
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B1 (0x08); rx_disp3 ($2, 5); } }
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| BRA DOT_A EXPR
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{ B1 (0x04); PC3 ($3); }
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| BRA DOT_S EXPR
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{ B1 (0x08); rx_disp3 ($3, 5); }
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/* ---------------------------------------------------------------------- */
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| BSR EXPR
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{ if (rx_intop ($2, 16, 16))
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{ B1 (0x39); PC2 ($2); }
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else if (rx_intop ($2, 24, 24))
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{ B1 (0x05); PC3 ($2); }
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else
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{ rx_relax (RX_RELAX_BRANCH, 0);
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rx_linkrelax_branch ();
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B1 (0x39); PC2 ($2); } }
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| BSR DOT_A EXPR
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{ B1 (0x05), PC3 ($3); }
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/* ---------------------------------------------------------------------- */
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| BCND DOT_S EXPR
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{ if ($1 == COND_EQ || $1 == COND_NE)
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{ B1 ($1 == COND_EQ ? 0x10 : 0x18); rx_disp3 ($3, 5); }
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else
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as_bad (_("Only BEQ and BNE may have .S")); }
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/* ---------------------------------------------------------------------- */
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| BCND DOT_B EXPR
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{ B1 (0x20); F ($1, 4, 4); PC1 ($3); }
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| BRA DOT_B EXPR
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{ B1 (0x2e), PC1 ($3); }
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/* ---------------------------------------------------------------------- */
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| BRA DOT_W EXPR
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{ B1 (0x38), PC2 ($3); }
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| BSR DOT_W EXPR
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{ B1 (0x39), PC2 ($3); }
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| BCND DOT_W EXPR
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{ if ($1 == COND_EQ || $1 == COND_NE)
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{ B1 ($1 == COND_EQ ? 0x3a : 0x3b); PC2 ($3); }
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else
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as_bad (_("Only BEQ and BNE may have .W")); }
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| BCND EXPR
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{ if ($1 == COND_EQ || $1 == COND_NE)
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{
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rx_relax (RX_RELAX_BRANCH, 0);
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rx_linkrelax_branch ();
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B1 ($1 == COND_EQ ? 0x10 : 0x18); rx_disp3 ($2, 5);
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}
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else
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{
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rx_relax (RX_RELAX_BRANCH, 0);
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/* This is because we might turn it into a
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jump-over-jump long branch. */
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rx_linkrelax_branch ();
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B1 (0x20); F ($1, 4, 4); PC1 ($2);
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} }
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/* ---------------------------------------------------------------------- */
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| MOV DOT_B '#' EXPR ',' disp '[' REG ']'
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/* rx_disp5op changes the value if it succeeds, so keep it last. */
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{ if ($8 <= 7 && rx_uintop ($4, 8) && rx_disp5op0 (&$6, BSIZE))
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{ B2 (0x3c, 0); rx_field5s2 ($6); F ($8, 9, 3); O1 ($4); }
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else
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{ B2 (0xf8, 0x04); F ($8, 8, 4); DSP ($6, 6, BSIZE); O1 ($4);
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if ($4.X_op != O_constant && $4.X_op != O_big) rx_linkrelax_imm (12); } }
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| MOV DOT_W '#' EXPR ',' disp '[' REG ']'
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{ if ($8 <= 7 && rx_uintop ($4, 8) && rx_disp5op0 (&$6, WSIZE))
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{ B2 (0x3d, 0); rx_field5s2 ($6); F ($8, 9, 3); O1 ($4); }
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else
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{ B2 (0xf8, 0x01); F ($8, 8, 4); DSP ($6, 6, WSIZE); IMMW ($4, 12); } }
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| MOV DOT_L '#' EXPR ',' disp '[' REG ']'
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{ if ($8 <= 7 && rx_uintop ($4, 8) && rx_disp5op0 (&$6, LSIZE))
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{ B2 (0x3e, 0); rx_field5s2 ($6); F ($8, 9, 3); O1 ($4); }
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else
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{ B2 (0xf8, 0x02); F ($8, 8, 4); DSP ($6, 6, LSIZE); IMM ($4, 12); } }
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/* ---------------------------------------------------------------------- */
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| RTSD '#' EXPR ',' REG '-' REG
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{ B2 (0x3f, 0); F ($5, 8, 4); F ($7, 12, 4); rtsd_immediate ($3);
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if ($5 == 0)
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rx_error (_("RTSD cannot pop R0"));
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if ($5 > $7)
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rx_error (_("RTSD first reg must be <= second reg")); }
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/* ---------------------------------------------------------------------- */
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| CMP REG ',' REG
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{ B2 (0x47, 0); F ($2, 8, 4); F ($4, 12, 4); }
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/* ---------------------------------------------------------------------- */
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| CMP disp '[' REG ']' DOT_UB ',' REG
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{ B2 (0x44, 0); F ($4, 8, 4); F ($8, 12, 4); DSP ($2, 6, BSIZE); }
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| CMP disp '[' REG ']' memex ',' REG
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{ B3 (MEMEX, 0x04, 0); F ($6, 8, 2); F ($4, 16, 4); F ($8, 20, 4); DSP ($2, 14, sizemap[$6]); }
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/* ---------------------------------------------------------------------- */
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| MOVU bw REG ',' REG
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{ B2 (0x5b, 0x00); F ($2, 5, 1); F ($3, 8, 4); F ($5, 12, 4); }
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/* ---------------------------------------------------------------------- */
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| MOVU bw '[' REG ']' ',' REG
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{ B2 (0x58, 0x00); F ($2, 5, 1); F ($4, 8, 4); F ($7, 12, 4); }
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| MOVU bw EXPR '[' REG ']' ',' REG
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{ if ($5 <= 7 && $8 <= 7 && rx_disp5op (&$3, $2))
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{ B2 (0xb0, 0); F ($2, 4, 1); F ($5, 9, 3); F ($8, 13, 3); rx_field5s ($3); }
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else
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{ B2 (0x58, 0x00); F ($2, 5, 1); F ($5, 8, 4); F ($8, 12, 4); DSP ($3, 6, $2); } }
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/* ---------------------------------------------------------------------- */
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| SUB '#' EXPR ',' REG
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{ if (rx_uintop ($3, 4))
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{ B2 (0x60, 0); FE ($3, 8, 4); F ($5, 12, 4); }
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else
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/* This is really an add, but we negate the immediate. */
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{ B2 (0x70, 0); F ($5, 8, 4); F ($5, 12, 4); NIMM ($3, 6); } }
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| CMP '#' EXPR ',' REG
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{ if (rx_uintop ($3, 4))
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{ B2 (0x61, 0); FE ($3, 8, 4); F ($5, 12, 4); }
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else if (rx_uintop ($3, 8))
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{ B2 (0x75, 0x50); F ($5, 12, 4); UO1 ($3); }
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else
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{ B2 (0x74, 0x00); F ($5, 12, 4); IMM ($3, 6); } }
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| ADD '#' EXPR ',' REG
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{ if (rx_uintop ($3, 4))
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{ B2 (0x62, 0); FE ($3, 8, 4); F ($5, 12, 4); }
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else
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{ B2 (0x70, 0); F ($5, 8, 4); F ($5, 12, 4); IMM ($3, 6); } }
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| MUL '#' EXPR ',' REG
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{ if (rx_uintop ($3, 4))
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{ B2 (0x63, 0); FE ($3, 8, 4); F ($5, 12, 4); }
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else
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{ B2 (0x74, 0x10); F ($5, 12, 4); IMM ($3, 6); } }
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| AND_ '#' EXPR ',' REG
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{ if (rx_uintop ($3, 4))
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{ B2 (0x64, 0); FE ($3, 8, 4); F ($5, 12, 4); }
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else
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{ B2 (0x74, 0x20); F ($5, 12, 4); IMM ($3, 6); } }
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| OR '#' EXPR ',' REG
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{ if (rx_uintop ($3, 4))
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{ B2 (0x65, 0); FE ($3, 8, 4); F ($5, 12, 4); }
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else
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{ B2 (0x74, 0x30); F ($5, 12, 4); IMM ($3, 6); } }
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| MOV DOT_L '#' EXPR ',' REG
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{ if (rx_uintop ($4, 4))
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{ B2 (0x66, 0); FE ($4, 8, 4); F ($6, 12, 4); }
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else if (rx_uintop ($4, 8))
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{ B2 (0x75, 0x40); F ($6, 12, 4); UO1 ($4); }
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else
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{ B2 (0xfb, 0x02); F ($6, 8, 4); IMM ($4, 12); } }
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| MOV '#' EXPR ',' REG
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{ if (rx_uintop ($3, 4))
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{ B2 (0x66, 0); FE ($3, 8, 4); F ($5, 12, 4); }
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else if (rx_uintop ($3, 8))
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{ B2 (0x75, 0x40); F ($5, 12, 4); UO1 ($3); }
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else
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{ B2 (0xfb, 0x02); F ($5, 8, 4); IMM ($3, 12); } }
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/* ---------------------------------------------------------------------- */
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| RTSD '#' EXPR
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{ B1 (0x67); rtsd_immediate ($3); }
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/* ---------------------------------------------------------------------- */
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| SHLR { sub_op = 0; } op_shift
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| SHAR { sub_op = 1; } op_shift
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| SHLL { sub_op = 2; } op_shift
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/* ---------------------------------------------------------------------- */
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| PUSHM REG '-' REG
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{
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if ($2 == $4)
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{ B2 (0x7e, 0x80); F (LSIZE, 10, 2); F ($2, 12, 4); }
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else
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{ B2 (0x6e, 0); F ($2, 8, 4); F ($4, 12, 4); }
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if ($2 == 0)
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rx_error (_("PUSHM cannot push R0"));
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if ($2 > $4)
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rx_error (_("PUSHM first reg must be <= second reg")); }
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/* ---------------------------------------------------------------------- */
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| POPM REG '-' REG
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{
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if ($2 == $4)
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{ B2 (0x7e, 0xb0); F ($2, 12, 4); }
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else
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{ B2 (0x6f, 0); F ($2, 8, 4); F ($4, 12, 4); }
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if ($2 == 0)
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rx_error (_("POPM cannot pop R0"));
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if ($2 > $4)
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rx_error (_("POPM first reg must be <= second reg")); }
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/* ---------------------------------------------------------------------- */
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| ADD '#' EXPR ',' REG ',' REG
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{ B2 (0x70, 0x00); F ($5, 8, 4); F ($7, 12, 4); IMM ($3, 6); }
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/* ---------------------------------------------------------------------- */
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| INT '#' EXPR
|
|
{ B2(0x75, 0x60), UO1 ($3); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| BSET '#' EXPR ',' REG
|
|
{ B2 (0x78, 0); FE ($3, 7, 5); F ($5, 12, 4); }
|
|
| BCLR '#' EXPR ',' REG
|
|
{ B2 (0x7a, 0); FE ($3, 7, 5); F ($5, 12, 4); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| BTST '#' EXPR ',' REG
|
|
{ B2 (0x7c, 0x00); FE ($3, 7, 5); F ($5, 12, 4); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| SAT REG
|
|
{ B2 (0x7e, 0x30); F ($2, 12, 4); }
|
|
| RORC REG
|
|
{ B2 (0x7e, 0x40); F ($2, 12, 4); }
|
|
| ROLC REG
|
|
{ B2 (0x7e, 0x50); F ($2, 12, 4); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| PUSH bwl REG
|
|
{ B2 (0x7e, 0x80); F ($2, 10, 2); F ($3, 12, 4); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| POP REG
|
|
{ B2 (0x7e, 0xb0); F ($2, 12, 4); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| PUSHC CREG
|
|
{ if ($2 < 16)
|
|
{ B2 (0x7e, 0xc0); F ($2, 12, 4); }
|
|
else
|
|
as_bad (_("PUSHC can only push the first 16 control registers")); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| POPC CREG
|
|
{ if ($2 < 16)
|
|
{ B2 (0x7e, 0xe0); F ($2, 12, 4); }
|
|
else
|
|
as_bad (_("POPC can only pop the first 16 control registers")); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| SETPSW flag
|
|
{ B2 (0x7f, 0xa0); F ($2, 12, 4); }
|
|
| CLRPSW flag
|
|
{ B2 (0x7f, 0xb0); F ($2, 12, 4); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| JMP REG
|
|
{ B2 (0x7f, 0x00); F ($2, 12, 4); }
|
|
| JSR REG
|
|
{ B2 (0x7f, 0x10); F ($2, 12, 4); }
|
|
| BRA opt_l REG
|
|
{ B2 (0x7f, 0x40); F ($3, 12, 4); }
|
|
| BSR opt_l REG
|
|
{ B2 (0x7f, 0x50); F ($3, 12, 4); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| SCMPU
|
|
{ B2 (0x7f, 0x83); rx_note_string_insn_use (); }
|
|
| SMOVU
|
|
{ B2 (0x7f, 0x87); rx_note_string_insn_use (); }
|
|
| SMOVB
|
|
{ B2 (0x7f, 0x8b); rx_note_string_insn_use (); }
|
|
| SMOVF
|
|
{ B2 (0x7f, 0x8f); rx_note_string_insn_use (); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| SUNTIL bwl
|
|
{ B2 (0x7f, 0x80); F ($2, 14, 2); rx_note_string_insn_use (); }
|
|
| SWHILE bwl
|
|
{ B2 (0x7f, 0x84); F ($2, 14, 2); rx_note_string_insn_use (); }
|
|
| SSTR bwl
|
|
{ B2 (0x7f, 0x88); F ($2, 14, 2); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| RMPA bwl
|
|
{ B2 (0x7f, 0x8c); F ($2, 14, 2); rx_note_string_insn_use (); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| RTFI
|
|
{ B2 (0x7f, 0x94); }
|
|
| RTE
|
|
{ B2 (0x7f, 0x95); }
|
|
| WAIT
|
|
{ B2 (0x7f, 0x96); }
|
|
| SATR
|
|
{ B2 (0x7f, 0x93); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| MVTIPL '#' EXPR
|
|
{ B3 (0x75, 0x70, 0x00); FE ($3, 20, 4); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
/* rx_disp5op changes the value if it succeeds, so keep it last. */
|
|
| MOV bwl REG ',' EXPR '[' REG ']'
|
|
{ if ($3 <= 7 && $7 <= 7 && rx_disp5op (&$5, $2))
|
|
{ B2 (0x80, 0); F ($2, 2, 2); F ($7, 9, 3); F ($3, 13, 3); rx_field5s ($5); }
|
|
else
|
|
{ B2 (0xc3, 0x00); F ($2, 2, 2); F ($7, 8, 4); F ($3, 12, 4); DSP ($5, 4, $2); }}
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| MOV bwl EXPR '[' REG ']' ',' REG
|
|
{ if ($5 <= 7 && $8 <= 7 && rx_disp5op (&$3, $2))
|
|
{ B2 (0x88, 0); F ($2, 2, 2); F ($5, 9, 3); F ($8, 13, 3); rx_field5s ($3); }
|
|
else
|
|
{ B2 (0xcc, 0x00); F ($2, 2, 2); F ($5, 8, 4); F ($8, 12, 4); DSP ($3, 6, $2); } }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
/* MOV a,b - if a is a reg and b is mem, src and dest are
|
|
swapped. */
|
|
|
|
/* We don't use "disp" here because it causes a shift/reduce
|
|
conflict with the other displacement-less patterns. */
|
|
|
|
| MOV bwl REG ',' '[' REG ']'
|
|
{ B2 (0xc3, 0x00); F ($2, 2, 2); F ($6, 8, 4); F ($3, 12, 4); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| MOV bwl '[' REG ']' ',' disp '[' REG ']'
|
|
{ B2 (0xc0, 0); F ($2, 2, 2); F ($4, 8, 4); F ($9, 12, 4); DSP ($7, 4, $2); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| MOV bwl EXPR '[' REG ']' ',' disp '[' REG ']'
|
|
{ B2 (0xc0, 0x00); F ($2, 2, 2); F ($5, 8, 4); F ($10, 12, 4); DSP ($3, 6, $2); DSP ($8, 4, $2); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| MOV bwl REG ',' REG
|
|
{ B2 (0xcf, 0x00); F ($2, 2, 2); F ($3, 8, 4); F ($5, 12, 4); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| MOV bwl '[' REG ']' ',' REG
|
|
{ B2 (0xcc, 0x00); F ($2, 2, 2); F ($4, 8, 4); F ($7, 12, 4); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| BSET '#' EXPR ',' disp '[' REG ']' DOT_B
|
|
{ B2 (0xf0, 0x00); F ($7, 8, 4); FE ($3, 13, 3); DSP ($5, 6, BSIZE); }
|
|
| BCLR '#' EXPR ',' disp '[' REG ']' DOT_B
|
|
{ B2 (0xf0, 0x08); F ($7, 8, 4); FE ($3, 13, 3); DSP ($5, 6, BSIZE); }
|
|
| BTST '#' EXPR ',' disp '[' REG ']' DOT_B
|
|
{ B2 (0xf4, 0x00); F ($7, 8, 4); FE ($3, 13, 3); DSP ($5, 6, BSIZE); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| PUSH bwl disp '[' REG ']'
|
|
{ B2 (0xf4, 0x08); F ($2, 14, 2); F ($5, 8, 4); DSP ($3, 6, $2); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| SBB { sub_op = 0; } op_dp20_rm_l
|
|
| NEG { sub_op = 1; sub_op2 = 1; } op_dp20_rr
|
|
| ADC { sub_op = 2; } op_dp20_rim_l
|
|
| ABS { sub_op = 3; sub_op2 = 2; } op_dp20_rr
|
|
| MAX { sub_op = 4; } op_dp20_rim
|
|
| MIN { sub_op = 5; } op_dp20_rim
|
|
| EMUL { sub_op = 6; } op_dp20_i
|
|
| EMULU { sub_op = 7; } op_dp20_i
|
|
| DIV { sub_op = 8; } op_dp20_rim
|
|
| DIVU { sub_op = 9; } op_dp20_rim
|
|
| TST { sub_op = 12; } op_dp20_rim
|
|
| XOR { sub_op = 13; } op_dp20_rim
|
|
| NOT { sub_op = 14; sub_op2 = 0; } op_dp20_rr
|
|
| STZ { sub_op = 14; } op_dp20_i
|
|
| STNZ { sub_op = 15; } op_dp20_i
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| EMUL { sub_op = 6; } op_xchg
|
|
| EMULU { sub_op = 7; } op_xchg
|
|
| XCHG { sub_op = 16; } op_xchg
|
|
| ITOF { sub_op = 17; } op_xchg
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| BSET REG ',' REG
|
|
{ id24 (1, 0x63, 0x00); F ($4, 16, 4); F ($2, 20, 4); }
|
|
| BCLR REG ',' REG
|
|
{ id24 (1, 0x67, 0x00); F ($4, 16, 4); F ($2, 20, 4); }
|
|
| BTST REG ',' REG
|
|
{ id24 (1, 0x6b, 0x00); F ($4, 16, 4); F ($2, 20, 4); }
|
|
| BNOT REG ',' REG
|
|
{ id24 (1, 0x6f, 0x00); F ($4, 16, 4); F ($2, 20, 4); }
|
|
|
|
| BSET REG ',' disp '[' REG ']' opt_b
|
|
{ id24 (1, 0x60, 0x00); F ($6, 16, 4); F ($2, 20, 4); DSP ($4, 14, BSIZE); }
|
|
| BCLR REG ',' disp '[' REG ']' opt_b
|
|
{ id24 (1, 0x64, 0x00); F ($6, 16, 4); F ($2, 20, 4); DSP ($4, 14, BSIZE); }
|
|
| BTST REG ',' disp '[' REG ']' opt_b
|
|
{ id24 (1, 0x68, 0x00); F ($6, 16, 4); F ($2, 20, 4); DSP ($4, 14, BSIZE); }
|
|
| BNOT REG ',' disp '[' REG ']' opt_b
|
|
{ id24 (1, 0x6c, 0x00); F ($6, 16, 4); F ($2, 20, 4); DSP ($4, 14, BSIZE); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| FSUB { sub_op = 0; } float2_op
|
|
| FCMP { sub_op = 1; } float2_op
|
|
| FADD { sub_op = 2; } float2_op
|
|
| FMUL { sub_op = 3; } float2_op
|
|
| FDIV { sub_op = 4; } float2_op
|
|
| FTOI { sub_op = 5; } float2_op_ni
|
|
| ROUND { sub_op = 6; } float2_op_ni
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| SCCND DOT_L REG
|
|
{ id24 (1, 0xdb, 0x00); F ($1, 20, 4); F ($3, 16, 4); }
|
|
| SCCND bwl disp '[' REG ']'
|
|
{ id24 (1, 0xd0, 0x00); F ($1, 20, 4); F ($2, 12, 2); F ($5, 16, 4); DSP ($3, 14, $2); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| BMCND '#' EXPR ',' disp '[' REG ']' opt_b
|
|
{ id24 (1, 0xe0, 0x00); F ($1, 20, 4); FE ($3, 11, 3);
|
|
F ($7, 16, 4); DSP ($5, 14, BSIZE); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| BNOT '#' EXPR ',' disp '[' REG ']' opt_b
|
|
{ id24 (1, 0xe0, 0x0f); FE ($3, 11, 3); F ($7, 16, 4);
|
|
DSP ($5, 14, BSIZE); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| MULHI REG ',' REG
|
|
{ id24 (2, 0x00, 0x00); F ($2, 16, 4); F ($4, 20, 4); }
|
|
| MULLO REG ',' REG
|
|
{ id24 (2, 0x01, 0x00); F ($2, 16, 4); F ($4, 20, 4); }
|
|
| MACHI REG ',' REG
|
|
{ id24 (2, 0x04, 0x00); F ($2, 16, 4); F ($4, 20, 4); }
|
|
| MACLO REG ',' REG
|
|
{ id24 (2, 0x05, 0x00); F ($2, 16, 4); F ($4, 20, 4); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
/* We don't have syntax for these yet. */
|
|
| MVTACHI REG
|
|
{ id24 (2, 0x17, 0x00); F ($2, 20, 4); }
|
|
| MVTACLO REG
|
|
{ id24 (2, 0x17, 0x10); F ($2, 20, 4); }
|
|
| MVFACHI REG
|
|
{ id24 (2, 0x1f, 0x00); F ($2, 20, 4); }
|
|
| MVFACMI REG
|
|
{ id24 (2, 0x1f, 0x20); F ($2, 20, 4); }
|
|
| MVFACLO REG
|
|
{ id24 (2, 0x1f, 0x10); F ($2, 20, 4); }
|
|
|
|
| RACW '#' EXPR
|
|
{ id24 (2, 0x18, 0x00);
|
|
if (rx_uintop ($3, 4) && $3.X_add_number == 1)
|
|
;
|
|
else if (rx_uintop ($3, 4) && $3.X_add_number == 2)
|
|
F (1, 19, 1);
|
|
else
|
|
as_bad (_("RACW expects #1 or #2"));}
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| MOV bwl REG ',' '[' REG '+' ']'
|
|
{ id24 (2, 0x20, 0); F ($2, 14, 2); F ($6, 16, 4); F ($3, 20, 4); }
|
|
| MOV bwl REG ',' '[' '-' REG ']'
|
|
{ id24 (2, 0x24, 0); F ($2, 14, 2); F ($7, 16, 4); F ($3, 20, 4); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| MOV bwl '[' REG '+' ']' ',' REG
|
|
{ id24 (2, 0x28, 0); F ($2, 14, 2); F ($4, 16, 4); F ($8, 20, 4); }
|
|
| MOV bwl '[' '-' REG ']' ',' REG
|
|
{ id24 (2, 0x2c, 0); F ($2, 14, 2); F ($5, 16, 4); F ($8, 20, 4); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| MOVU bw '[' REG '+' ']' ',' REG
|
|
{ id24 (2, 0x38, 0); F ($2, 15, 1); F ($4, 16, 4); F ($8, 20, 4); }
|
|
| MOVU bw '[' '-' REG ']' ',' REG
|
|
{ id24 (2, 0x3c, 0); F ($2, 15, 1); F ($5, 16, 4); F ($8, 20, 4); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| ROTL { sub_op = 6; } op_shift_rot
|
|
| ROTR { sub_op = 4; } op_shift_rot
|
|
| REVW { sub_op = 5; } op_shift_rot
|
|
| REVL { sub_op = 7; } op_shift_rot
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| MVTC REG ',' CREG
|
|
{ id24 (2, 0x68, 0x00); F ($4 % 16, 20, 4); F ($4 / 16, 15, 1);
|
|
F ($2, 16, 4); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| MVFC CREG ',' REG
|
|
{ id24 (2, 0x6a, 0); F ($2, 15, 5); F ($4, 20, 4); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| ROTL '#' EXPR ',' REG
|
|
{ id24 (2, 0x6e, 0); FE ($3, 15, 5); F ($5, 20, 4); }
|
|
| ROTR '#' EXPR ',' REG
|
|
{ id24 (2, 0x6c, 0); FE ($3, 15, 5); F ($5, 20, 4); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| MVTC '#' EXPR ',' CREG
|
|
{ id24 (2, 0x73, 0x00); F ($5, 19, 5); IMM ($3, 12); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| BMCND '#' EXPR ',' REG
|
|
{ id24 (2, 0xe0, 0x00); F ($1, 16, 4); FE ($3, 11, 5);
|
|
F ($5, 20, 4); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| BNOT '#' EXPR ',' REG
|
|
{ id24 (2, 0xe0, 0xf0); FE ($3, 11, 5); F ($5, 20, 4); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| MOV bwl REG ',' '[' REG ',' REG ']'
|
|
{ id24 (3, 0x00, 0); F ($2, 10, 2); F ($6, 12, 4); F ($8, 16, 4); F ($3, 20, 4); }
|
|
|
|
| MOV bwl '[' REG ',' REG ']' ',' REG
|
|
{ id24 (3, 0x40, 0); F ($2, 10, 2); F ($4, 12, 4); F ($6, 16, 4); F ($9, 20, 4); }
|
|
|
|
| MOVU bw '[' REG ',' REG ']' ',' REG
|
|
{ id24 (3, 0xc0, 0); F ($2, 10, 2); F ($4, 12, 4); F ($6, 16, 4); F ($9, 20, 4); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
| SUB { sub_op = 0; } op_subadd
|
|
| ADD { sub_op = 2; } op_subadd
|
|
| MUL { sub_op = 3; } op_subadd
|
|
| AND_ { sub_op = 4; } op_subadd
|
|
| OR { sub_op = 5; } op_subadd
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
/* There is no SBB #imm so we fake it with ADC. */
|
|
|
|
| SBB '#' EXPR ',' REG
|
|
{ id24 (2, 0x70, 0x20); F ($5, 20, 4); NBIMM ($3, 12); }
|
|
|
|
/* ---------------------------------------------------------------------- */
|
|
|
|
;
|
|
|
|
/* ====================================================================== */
|
|
|
|
op_subadd
|
|
: REG ',' REG
|
|
{ B2 (0x43 + (sub_op<<2), 0); F ($1, 8, 4); F ($3, 12, 4); }
|
|
| disp '[' REG ']' DOT_UB ',' REG
|
|
{ B2 (0x40 + (sub_op<<2), 0); F ($3, 8, 4); F ($7, 12, 4); DSP ($1, 6, BSIZE); }
|
|
| disp '[' REG ']' memex ',' REG
|
|
{ B3 (MEMEX, sub_op<<2, 0); F ($5, 8, 2); F ($3, 16, 4); F ($7, 20, 4); DSP ($1, 14, sizemap[$5]); }
|
|
| REG ',' REG ',' REG
|
|
{ id24 (4, sub_op<<4, 0), F ($5, 12, 4), F ($1, 16, 4), F ($3, 20, 4); }
|
|
;
|
|
|
|
/* sbb, neg, adc, abs, max, min, div, divu, tst, not, xor, stz, stnz, emul, emulu */
|
|
|
|
op_dp20_rm_l
|
|
: REG ',' REG
|
|
{ id24 (1, 0x03 + (sub_op<<2), 0x00); F ($1, 16, 4); F ($3, 20, 4); }
|
|
| disp '[' REG ']' opt_l ',' REG
|
|
{ B4 (MEMEX, 0xa0, 0x00 + sub_op, 0x00);
|
|
F ($3, 24, 4); F ($7, 28, 4); DSP ($1, 14, LSIZE); }
|
|
;
|
|
|
|
/* neg, adc, abs, max, min, div, divu, tst, not, xor, stz, stnz, emul, emulu */
|
|
|
|
op_dp20_rm
|
|
: REG ',' REG
|
|
{ id24 (1, 0x03 + (sub_op<<2), 0x00); F ($1, 16, 4); F ($3, 20, 4); }
|
|
| disp '[' REG ']' DOT_UB ',' REG
|
|
{ id24 (1, 0x00 + (sub_op<<2), 0x00); F ($3, 16, 4); F ($7, 20, 4); DSP ($1, 14, BSIZE); }
|
|
| disp '[' REG ']' memex ',' REG
|
|
{ B4 (MEMEX, 0x20 + ($5 << 6), 0x00 + sub_op, 0x00);
|
|
F ($3, 24, 4); F ($7, 28, 4); DSP ($1, 14, sizemap[$5]); }
|
|
;
|
|
|
|
op_dp20_i
|
|
: '#' EXPR ',' REG
|
|
{ id24 (2, 0x70, sub_op<<4); F ($4, 20, 4); IMM ($2, 12); }
|
|
;
|
|
|
|
op_dp20_rim
|
|
: op_dp20_rm
|
|
| op_dp20_i
|
|
;
|
|
|
|
op_dp20_rim_l
|
|
: op_dp20_rm_l
|
|
| op_dp20_i
|
|
;
|
|
|
|
op_dp20_rr
|
|
: REG ',' REG
|
|
{ id24 (1, 0x03 + (sub_op<<2), 0x00); F ($1, 16, 4); F ($3, 20, 4); }
|
|
| REG
|
|
{ B2 (0x7e, sub_op2 << 4); F ($1, 12, 4); }
|
|
;
|
|
|
|
/* xchg, itof, emul, emulu */
|
|
op_xchg
|
|
: REG ',' REG
|
|
{ id24 (1, 0x03 + (sub_op<<2), 0); F ($1, 16, 4); F ($3, 20, 4); }
|
|
| disp '[' REG ']' DOT_UB ',' REG
|
|
{ id24 (1, 0x00 + (sub_op<<2), 0); F ($3, 16, 4); F ($7, 20, 4); DSP ($1, 14, BSIZE); }
|
|
| disp '[' REG ']' memex ',' REG
|
|
{ B4 (MEMEX, 0x20, 0x00 + sub_op, 0); F ($5, 8, 2); F ($3, 24, 4); F ($7, 28, 4);
|
|
DSP ($1, 14, sizemap[$5]); }
|
|
;
|
|
|
|
/* 000:SHLR, 001:SHAR, 010:SHLL, 011:-, 100:ROTR, 101:REVW, 110:ROTL, 111:REVL */
|
|
op_shift_rot
|
|
: REG ',' REG
|
|
{ id24 (2, 0x60 + sub_op, 0); F ($1, 16, 4); F ($3, 20, 4); }
|
|
;
|
|
op_shift
|
|
: '#' EXPR ',' REG
|
|
{ B2 (0x68 + (sub_op<<1), 0); FE ($2, 7, 5); F ($4, 12, 4); }
|
|
| '#' EXPR ',' REG ',' REG
|
|
{ id24 (2, 0x80 + (sub_op << 5), 0); FE ($2, 11, 5); F ($4, 16, 4); F ($6, 20, 4); }
|
|
| op_shift_rot
|
|
;
|
|
|
|
|
|
float2_op
|
|
: { rx_check_float_support (); }
|
|
'#' EXPR ',' REG
|
|
{ id24 (2, 0x72, sub_op << 4); F ($5, 20, 4); O4 ($3); }
|
|
| float2_op_ni
|
|
;
|
|
|
|
float2_op_ni
|
|
: { rx_check_float_support (); }
|
|
REG ',' REG
|
|
{ id24 (1, 0x83 + (sub_op << 2), 0); F ($2, 16, 4); F ($4, 20, 4); }
|
|
| { rx_check_float_support (); }
|
|
disp '[' REG ']' opt_l ',' REG
|
|
{ id24 (1, 0x80 + (sub_op << 2), 0); F ($4, 16, 4); F ($8, 20, 4); DSP ($2, 14, LSIZE); }
|
|
;
|
|
|
|
/* ====================================================================== */
|
|
|
|
disp : { $$ = zero_expr (); }
|
|
| EXPR { $$ = $1; }
|
|
;
|
|
|
|
flag : { need_flag = 1; } FLAG { need_flag = 0; $$ = $2; }
|
|
;
|
|
|
|
/* DOT_UB is not listed here, it's handled with a separate pattern. */
|
|
/* Use sizemap[$n] to get LSIZE etc. */
|
|
memex : DOT_B { $$ = 0; }
|
|
| DOT_W { $$ = 1; }
|
|
| { $$ = 2; }
|
|
| DOT_L { $$ = 2; }
|
|
| DOT_UW { $$ = 3; }
|
|
;
|
|
|
|
bwl : { $$ = LSIZE; }
|
|
| DOT_B { $$ = BSIZE; }
|
|
| DOT_W { $$ = WSIZE; }
|
|
| DOT_L { $$ = LSIZE; }
|
|
;
|
|
|
|
bw : { $$ = 1; }
|
|
| DOT_B { $$ = 0; }
|
|
| DOT_W { $$ = 1; }
|
|
;
|
|
|
|
opt_l : {}
|
|
| DOT_L {}
|
|
;
|
|
|
|
opt_b : {}
|
|
| DOT_B {}
|
|
;
|
|
|
|
%%
|
|
/* ====================================================================== */
|
|
|
|
static struct
|
|
{
|
|
const char * string;
|
|
int token;
|
|
int val;
|
|
}
|
|
token_table[] =
|
|
{
|
|
{ "r0", REG, 0 },
|
|
{ "r1", REG, 1 },
|
|
{ "r2", REG, 2 },
|
|
{ "r3", REG, 3 },
|
|
{ "r4", REG, 4 },
|
|
{ "r5", REG, 5 },
|
|
{ "r6", REG, 6 },
|
|
{ "r7", REG, 7 },
|
|
{ "r8", REG, 8 },
|
|
{ "r9", REG, 9 },
|
|
{ "r10", REG, 10 },
|
|
{ "r11", REG, 11 },
|
|
{ "r12", REG, 12 },
|
|
{ "r13", REG, 13 },
|
|
{ "r14", REG, 14 },
|
|
{ "r15", REG, 15 },
|
|
|
|
{ "psw", CREG, 0 },
|
|
{ "pc", CREG, 1 },
|
|
{ "usp", CREG, 2 },
|
|
{ "fpsw", CREG, 3 },
|
|
/* reserved */
|
|
/* reserved */
|
|
/* reserved */
|
|
{ "wr", CREG, 7 },
|
|
|
|
{ "bpsw", CREG, 8 },
|
|
{ "bpc", CREG, 9 },
|
|
{ "isp", CREG, 10 },
|
|
{ "fintv", CREG, 11 },
|
|
{ "intb", CREG, 12 },
|
|
|
|
{ "pbp", CREG, 16 },
|
|
{ "pben", CREG, 17 },
|
|
|
|
{ "bbpsw", CREG, 24 },
|
|
{ "bbpc", CREG, 25 },
|
|
|
|
{ ".s", DOT_S, 0 },
|
|
{ ".b", DOT_B, 0 },
|
|
{ ".w", DOT_W, 0 },
|
|
{ ".l", DOT_L, 0 },
|
|
{ ".a", DOT_A , 0},
|
|
{ ".ub", DOT_UB, 0 },
|
|
{ ".uw", DOT_UW , 0},
|
|
|
|
{ "c", FLAG, 0 },
|
|
{ "z", FLAG, 1 },
|
|
{ "s", FLAG, 2 },
|
|
{ "o", FLAG, 3 },
|
|
{ "i", FLAG, 8 },
|
|
{ "u", FLAG, 9 },
|
|
|
|
#define OPC(x) { #x, x, IS_OPCODE }
|
|
OPC(ABS),
|
|
OPC(ADC),
|
|
OPC(ADD),
|
|
{ "and", AND_, IS_OPCODE },
|
|
OPC(BCLR),
|
|
OPC(BCND),
|
|
OPC(BMCND),
|
|
OPC(BNOT),
|
|
OPC(BRA),
|
|
OPC(BRK),
|
|
OPC(BSET),
|
|
OPC(BSR),
|
|
OPC(BTST),
|
|
OPC(CLRPSW),
|
|
OPC(CMP),
|
|
OPC(DBT),
|
|
OPC(DIV),
|
|
OPC(DIVU),
|
|
OPC(EDIV),
|
|
OPC(EDIVU),
|
|
OPC(EMUL),
|
|
OPC(EMULU),
|
|
OPC(FADD),
|
|
OPC(FCMP),
|
|
OPC(FDIV),
|
|
OPC(FMUL),
|
|
OPC(FREIT),
|
|
OPC(FSUB),
|
|
OPC(FTOI),
|
|
OPC(INT),
|
|
OPC(ITOF),
|
|
OPC(JMP),
|
|
OPC(JSR),
|
|
OPC(MVFACHI),
|
|
OPC(MVFACMI),
|
|
OPC(MVFACLO),
|
|
OPC(MVFC),
|
|
OPC(MVTACHI),
|
|
OPC(MVTACLO),
|
|
OPC(MVTC),
|
|
OPC(MVTIPL),
|
|
OPC(MACHI),
|
|
OPC(MACLO),
|
|
OPC(MAX),
|
|
OPC(MIN),
|
|
OPC(MOV),
|
|
OPC(MOVU),
|
|
OPC(MUL),
|
|
OPC(MULHI),
|
|
OPC(MULLO),
|
|
OPC(MULU),
|
|
OPC(NEG),
|
|
OPC(NOP),
|
|
OPC(NOT),
|
|
OPC(OR),
|
|
OPC(POP),
|
|
OPC(POPC),
|
|
OPC(POPM),
|
|
OPC(PUSH),
|
|
OPC(PUSHA),
|
|
OPC(PUSHC),
|
|
OPC(PUSHM),
|
|
OPC(RACW),
|
|
OPC(REIT),
|
|
OPC(REVL),
|
|
OPC(REVW),
|
|
OPC(RMPA),
|
|
OPC(ROLC),
|
|
OPC(RORC),
|
|
OPC(ROTL),
|
|
OPC(ROTR),
|
|
OPC(ROUND),
|
|
OPC(RTE),
|
|
OPC(RTFI),
|
|
OPC(RTS),
|
|
OPC(RTSD),
|
|
OPC(SAT),
|
|
OPC(SATR),
|
|
OPC(SBB),
|
|
OPC(SCCND),
|
|
OPC(SCMPU),
|
|
OPC(SETPSW),
|
|
OPC(SHAR),
|
|
OPC(SHLL),
|
|
OPC(SHLR),
|
|
OPC(SMOVB),
|
|
OPC(SMOVF),
|
|
OPC(SMOVU),
|
|
OPC(SSTR),
|
|
OPC(STNZ),
|
|
OPC(STOP),
|
|
OPC(STZ),
|
|
OPC(SUB),
|
|
OPC(SUNTIL),
|
|
OPC(SWHILE),
|
|
OPC(TST),
|
|
OPC(WAIT),
|
|
OPC(XCHG),
|
|
OPC(XOR),
|
|
};
|
|
|
|
#define NUM_TOKENS (sizeof (token_table) / sizeof (token_table[0]))
|
|
|
|
static struct
|
|
{
|
|
char * string;
|
|
int token;
|
|
}
|
|
condition_opcode_table[] =
|
|
{
|
|
{ "b", BCND },
|
|
{ "bm", BMCND },
|
|
{ "sc", SCCND },
|
|
};
|
|
|
|
#define NUM_CONDITION_OPCODES (sizeof (condition_opcode_table) / sizeof (condition_opcode_table[0]))
|
|
|
|
static struct
|
|
{
|
|
char * string;
|
|
int val;
|
|
}
|
|
condition_table[] =
|
|
{
|
|
{ "z", 0 },
|
|
{ "eq", 0 },
|
|
{ "geu", 2 },
|
|
{ "c", 2 },
|
|
{ "gtu", 4 },
|
|
{ "pz", 6 },
|
|
{ "ge", 8 },
|
|
{ "gt", 10 },
|
|
{ "o", 12},
|
|
/* always = 14 */
|
|
{ "nz", 1 },
|
|
{ "ne", 1 },
|
|
{ "ltu", 3 },
|
|
{ "nc", 3 },
|
|
{ "leu", 5 },
|
|
{ "n", 7 },
|
|
{ "lt", 9 },
|
|
{ "le", 11 },
|
|
{ "no", 13 }
|
|
/* never = 15 */
|
|
};
|
|
|
|
#define NUM_CONDITIONS (sizeof (condition_table) / sizeof (condition_table[0]))
|
|
|
|
void
|
|
rx_lex_init (char * beginning, char * ending)
|
|
{
|
|
rx_init_start = beginning;
|
|
rx_lex_start = beginning;
|
|
rx_lex_end = ending;
|
|
rx_in_brackets = 0;
|
|
rx_last_token = 0;
|
|
|
|
setbuf (stdout, 0);
|
|
}
|
|
|
|
static int
|
|
check_condition (char * base)
|
|
{
|
|
char * cp;
|
|
unsigned int i;
|
|
|
|
if ((unsigned) (rx_lex_end - rx_lex_start) < strlen (base) + 1)
|
|
return 0;
|
|
if (memcmp (rx_lex_start, base, strlen (base)))
|
|
return 0;
|
|
cp = rx_lex_start + strlen (base);
|
|
for (i = 0; i < NUM_CONDITIONS; i ++)
|
|
{
|
|
if (strcasecmp (cp, condition_table[i].string) == 0)
|
|
{
|
|
rx_lval.regno = condition_table[i].val;
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
rx_lex (void)
|
|
{
|
|
unsigned int ci;
|
|
char * save_input_pointer;
|
|
|
|
while (ISSPACE (*rx_lex_start)
|
|
&& rx_lex_start != rx_lex_end)
|
|
rx_lex_start ++;
|
|
|
|
rx_last_exp_start = rx_lex_start;
|
|
|
|
if (rx_lex_start == rx_lex_end)
|
|
return 0;
|
|
|
|
if (ISALPHA (*rx_lex_start)
|
|
|| (rx_pid_register != -1 && memcmp (rx_lex_start, "%pidreg", 7) == 0)
|
|
|| (rx_gp_register != -1 && memcmp (rx_lex_start, "%gpreg", 6) == 0)
|
|
|| (*rx_lex_start == '.' && ISALPHA (rx_lex_start[1])))
|
|
{
|
|
unsigned int i;
|
|
char * e;
|
|
char save;
|
|
|
|
for (e = rx_lex_start + 1;
|
|
e < rx_lex_end && ISALNUM (*e);
|
|
e ++)
|
|
;
|
|
save = *e;
|
|
*e = 0;
|
|
|
|
if (strcmp (rx_lex_start, "%pidreg") == 0)
|
|
{
|
|
{
|
|
rx_lval.regno = rx_pid_register;
|
|
*e = save;
|
|
rx_lex_start = e;
|
|
rx_last_token = REG;
|
|
return REG;
|
|
}
|
|
}
|
|
|
|
if (strcmp (rx_lex_start, "%gpreg") == 0)
|
|
{
|
|
{
|
|
rx_lval.regno = rx_gp_register;
|
|
*e = save;
|
|
rx_lex_start = e;
|
|
rx_last_token = REG;
|
|
return REG;
|
|
}
|
|
}
|
|
|
|
if (rx_last_token == 0)
|
|
for (ci = 0; ci < NUM_CONDITION_OPCODES; ci ++)
|
|
if (check_condition (condition_opcode_table[ci].string))
|
|
{
|
|
*e = save;
|
|
rx_lex_start = e;
|
|
rx_last_token = condition_opcode_table[ci].token;
|
|
return condition_opcode_table[ci].token;
|
|
}
|
|
|
|
for (i = 0; i < NUM_TOKENS; i++)
|
|
if (strcasecmp (rx_lex_start, token_table[i].string) == 0
|
|
&& !(token_table[i].val == IS_OPCODE && rx_last_token != 0)
|
|
&& !(token_table[i].token == FLAG && !need_flag))
|
|
{
|
|
rx_lval.regno = token_table[i].val;
|
|
*e = save;
|
|
rx_lex_start = e;
|
|
rx_last_token = token_table[i].token;
|
|
return token_table[i].token;
|
|
}
|
|
*e = save;
|
|
}
|
|
|
|
if (rx_last_token == 0)
|
|
{
|
|
rx_last_token = UNKNOWN_OPCODE;
|
|
return UNKNOWN_OPCODE;
|
|
}
|
|
|
|
if (rx_last_token == UNKNOWN_OPCODE)
|
|
return 0;
|
|
|
|
if (*rx_lex_start == '[')
|
|
rx_in_brackets = 1;
|
|
if (*rx_lex_start == ']')
|
|
rx_in_brackets = 0;
|
|
|
|
if (rx_in_brackets
|
|
|| rx_last_token == REG
|
|
|| strchr ("[],#", *rx_lex_start))
|
|
{
|
|
rx_last_token = *rx_lex_start;
|
|
return *rx_lex_start ++;
|
|
}
|
|
|
|
save_input_pointer = input_line_pointer;
|
|
input_line_pointer = rx_lex_start;
|
|
rx_lval.exp.X_md = 0;
|
|
expression (&rx_lval.exp);
|
|
|
|
/* We parse but ignore any :<size> modifier on expressions. */
|
|
if (*input_line_pointer == ':')
|
|
{
|
|
char *cp;
|
|
|
|
for (cp = input_line_pointer + 1; *cp && cp < rx_lex_end; cp++)
|
|
if (!ISDIGIT (*cp))
|
|
break;
|
|
if (cp > input_line_pointer+1)
|
|
input_line_pointer = cp;
|
|
}
|
|
|
|
rx_lex_start = input_line_pointer;
|
|
input_line_pointer = save_input_pointer;
|
|
rx_last_token = EXPR;
|
|
return EXPR;
|
|
}
|
|
|
|
int
|
|
rx_error (const char * str)
|
|
{
|
|
int len;
|
|
|
|
len = rx_last_exp_start - rx_init_start;
|
|
|
|
as_bad ("%s", rx_init_start);
|
|
as_bad ("%*s^ %s", len, "", str);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
rx_intop (expressionS exp, int nbits, int opbits)
|
|
{
|
|
long v;
|
|
long mask, msb;
|
|
|
|
if (exp.X_op == O_big && nbits == 32)
|
|
return 1;
|
|
if (exp.X_op != O_constant)
|
|
return 0;
|
|
v = exp.X_add_number;
|
|
|
|
msb = 1UL << (opbits - 1);
|
|
mask = (1UL << opbits) - 1;
|
|
|
|
if ((v & msb) && ! (v & ~mask))
|
|
v -= 1UL << opbits;
|
|
|
|
switch (nbits)
|
|
{
|
|
case 4:
|
|
return -0x8 <= v && v <= 0x7;
|
|
case 5:
|
|
return -0x10 <= v && v <= 0x17;
|
|
case 8:
|
|
return -0x80 <= v && v <= 0x7f;
|
|
case 16:
|
|
return -0x8000 <= v && v <= 0x7fff;
|
|
case 24:
|
|
return -0x800000 <= v && v <= 0x7fffff;
|
|
case 32:
|
|
return 1;
|
|
default:
|
|
printf ("rx_intop passed %d\n", nbits);
|
|
abort ();
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
rx_uintop (expressionS exp, int nbits)
|
|
{
|
|
unsigned long v;
|
|
|
|
if (exp.X_op != O_constant)
|
|
return 0;
|
|
v = exp.X_add_number;
|
|
|
|
switch (nbits)
|
|
{
|
|
case 4:
|
|
return v <= 0xf;
|
|
case 8:
|
|
return v <= 0xff;
|
|
case 16:
|
|
return v <= 0xffff;
|
|
case 24:
|
|
return v <= 0xffffff;
|
|
default:
|
|
printf ("rx_uintop passed %d\n", nbits);
|
|
abort ();
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
rx_disp3op (expressionS exp)
|
|
{
|
|
unsigned long v;
|
|
|
|
if (exp.X_op != O_constant)
|
|
return 0;
|
|
v = exp.X_add_number;
|
|
if (v < 3 || v > 10)
|
|
return 0;
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
rx_disp5op (expressionS * exp, int msize)
|
|
{
|
|
long v;
|
|
|
|
if (exp->X_op != O_constant)
|
|
return 0;
|
|
v = exp->X_add_number;
|
|
|
|
switch (msize)
|
|
{
|
|
case BSIZE:
|
|
if (0 < v && v <= 31)
|
|
return 1;
|
|
break;
|
|
case WSIZE:
|
|
if (v & 1)
|
|
return 0;
|
|
if (0 < v && v <= 63)
|
|
{
|
|
exp->X_add_number >>= 1;
|
|
return 1;
|
|
}
|
|
break;
|
|
case LSIZE:
|
|
if (v & 3)
|
|
return 0;
|
|
if (0 < v && v <= 127)
|
|
{
|
|
exp->X_add_number >>= 2;
|
|
return 1;
|
|
}
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Just like the above, but allows a zero displacement. */
|
|
|
|
static int
|
|
rx_disp5op0 (expressionS * exp, int msize)
|
|
{
|
|
if (exp->X_op != O_constant)
|
|
return 0;
|
|
if (exp->X_add_number == 0)
|
|
return 1;
|
|
return rx_disp5op (exp, msize);
|
|
}
|
|
|
|
static int
|
|
exp_val (expressionS exp)
|
|
{
|
|
if (exp.X_op != O_constant)
|
|
{
|
|
rx_error (_("constant expected"));
|
|
return 0;
|
|
}
|
|
return exp.X_add_number;
|
|
}
|
|
|
|
static expressionS
|
|
zero_expr (void)
|
|
{
|
|
/* Static, so program load sets it to all zeros, which is what we want. */
|
|
static expressionS zero;
|
|
zero.X_op = O_constant;
|
|
return zero;
|
|
}
|
|
|
|
static int
|
|
immediate (expressionS exp, int type, int pos, int bits)
|
|
{
|
|
/* We will emit constants ourself here, so negate them. */
|
|
if (type == RXREL_NEGATIVE && exp.X_op == O_constant)
|
|
exp.X_add_number = - exp.X_add_number;
|
|
if (type == RXREL_NEGATIVE_BORROW)
|
|
{
|
|
if (exp.X_op == O_constant)
|
|
exp.X_add_number = - exp.X_add_number - 1;
|
|
else
|
|
rx_error (_("sbb cannot use symbolic immediates"));
|
|
}
|
|
|
|
if (rx_intop (exp, 8, bits))
|
|
{
|
|
rx_op (exp, 1, type);
|
|
return 1;
|
|
}
|
|
else if (rx_intop (exp, 16, bits))
|
|
{
|
|
rx_op (exp, 2, type);
|
|
return 2;
|
|
}
|
|
else if (rx_uintop (exp, 16) && bits == 16)
|
|
{
|
|
rx_op (exp, 2, type);
|
|
return 2;
|
|
}
|
|
else if (rx_intop (exp, 24, bits))
|
|
{
|
|
rx_op (exp, 3, type);
|
|
return 3;
|
|
}
|
|
else if (rx_intop (exp, 32, bits))
|
|
{
|
|
rx_op (exp, 4, type);
|
|
return 0;
|
|
}
|
|
else if (type == RXREL_SIGNED)
|
|
{
|
|
/* This is a symbolic immediate, we will relax it later. */
|
|
rx_relax (RX_RELAX_IMM, pos);
|
|
rx_op (exp, linkrelax ? 4 : 1, type);
|
|
return 1;
|
|
}
|
|
else
|
|
{
|
|
/* Let the linker deal with it. */
|
|
rx_op (exp, 4, type);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static int
|
|
displacement (expressionS exp, int msize)
|
|
{
|
|
int val;
|
|
int vshift = 0;
|
|
|
|
if (exp.X_op == O_symbol
|
|
&& exp.X_md)
|
|
{
|
|
switch (exp.X_md)
|
|
{
|
|
case BFD_RELOC_GPREL16:
|
|
switch (msize)
|
|
{
|
|
case BSIZE:
|
|
exp.X_md = BFD_RELOC_RX_GPRELB;
|
|
break;
|
|
case WSIZE:
|
|
exp.X_md = BFD_RELOC_RX_GPRELW;
|
|
break;
|
|
case LSIZE:
|
|
exp.X_md = BFD_RELOC_RX_GPRELL;
|
|
break;
|
|
}
|
|
O2 (exp);
|
|
return 2;
|
|
}
|
|
}
|
|
|
|
if (exp.X_op == O_subtract)
|
|
{
|
|
exp.X_md = BFD_RELOC_RX_DIFF;
|
|
O2 (exp);
|
|
return 2;
|
|
}
|
|
|
|
if (exp.X_op != O_constant)
|
|
{
|
|
rx_error (_("displacements must be constants"));
|
|
return -1;
|
|
}
|
|
val = exp.X_add_number;
|
|
|
|
if (val == 0)
|
|
return 0;
|
|
|
|
switch (msize)
|
|
{
|
|
case BSIZE:
|
|
break;
|
|
case WSIZE:
|
|
if (val & 1)
|
|
rx_error (_("word displacement not word-aligned"));
|
|
vshift = 1;
|
|
break;
|
|
case LSIZE:
|
|
if (val & 3)
|
|
rx_error (_("long displacement not long-aligned"));
|
|
vshift = 2;
|
|
break;
|
|
default:
|
|
as_bad (_("displacement with unknown size (internal bug?)\n"));
|
|
break;
|
|
}
|
|
|
|
val >>= vshift;
|
|
exp.X_add_number = val;
|
|
|
|
if (0 <= val && val <= 255 )
|
|
{
|
|
O1 (exp);
|
|
return 1;
|
|
}
|
|
|
|
if (0 <= val && val <= 65535)
|
|
{
|
|
O2 (exp);
|
|
return 2;
|
|
}
|
|
if (val < 0)
|
|
rx_error (_("negative displacements not allowed"));
|
|
else
|
|
rx_error (_("displacement too large"));
|
|
return -1;
|
|
}
|
|
|
|
static void
|
|
rtsd_immediate (expressionS exp)
|
|
{
|
|
int val;
|
|
|
|
if (exp.X_op != O_constant)
|
|
{
|
|
rx_error (_("rtsd size must be constant"));
|
|
return;
|
|
}
|
|
val = exp.X_add_number;
|
|
if (val & 3)
|
|
rx_error (_("rtsd size must be multiple of 4"));
|
|
|
|
if (val < 0 || val > 1020)
|
|
rx_error (_("rtsd size must be 0..1020"));
|
|
|
|
val >>= 2;
|
|
exp.X_add_number = val;
|
|
O1 (exp);
|
|
}
|
|
|
|
static void
|
|
rx_range (expressionS exp, int minv, int maxv)
|
|
{
|
|
int val;
|
|
|
|
if (exp.X_op != O_constant)
|
|
return;
|
|
|
|
val = exp.X_add_number;
|
|
if (val < minv || val > maxv)
|
|
as_warn (_("Value %d out of range %d..%d"), val, minv, maxv);
|
|
}
|
|
|
|
static void
|
|
rx_check_float_support (void)
|
|
{
|
|
if (rx_cpu == RX100 || rx_cpu == RX200)
|
|
rx_error (_("target CPU type does not support floating point instructions"));
|
|
}
|