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/* bfin-parse.y ADI Blackfin parser
Copyright 2005, 2006
Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
GAS 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.
GAS 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 GAS; see the file COPYING. If not, write to the Free
Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
02110-1301, USA. */
%{
#include "as.h"
#include <obstack.h>
#include "bfin-aux.h" // opcode generating auxiliaries
#include "libbfd.h"
#include "elf/common.h"
#include "elf/bfin.h"
#define DSP32ALU(aopcde, HL, dst1, dst0, src0, src1, s, x, aop) \
bfin_gen_dsp32alu (HL, aopcde, aop, s, x, dst0, dst1, src0, src1)
#define DSP32MAC(op1, MM, mmod, w1, P, h01, h11, h00, h10, dst, op0, src0, src1, w0) \
bfin_gen_dsp32mac (op1, MM, mmod, w1, P, h01, h11, h00, h10, op0, \
dst, src0, src1, w0)
#define DSP32MULT(op1, MM, mmod, w1, P, h01, h11, h00, h10, dst, op0, src0, src1, w0) \
bfin_gen_dsp32mult (op1, MM, mmod, w1, P, h01, h11, h00, h10, op0, \
dst, src0, src1, w0)
#define DSP32SHIFT(sopcde, dst0, src0, src1, sop, hls) \
bfin_gen_dsp32shift (sopcde, dst0, src0, src1, sop, hls)
#define DSP32SHIFTIMM(sopcde, dst0, immag, src1, sop, hls) \
bfin_gen_dsp32shiftimm (sopcde, dst0, immag, src1, sop, hls)
#define LDIMMHALF_R(reg, h, s, z, hword) \
bfin_gen_ldimmhalf (reg, h, s, z, hword, 1)
#define LDIMMHALF_R5(reg, h, s, z, hword) \
bfin_gen_ldimmhalf (reg, h, s, z, hword, 2)
#define LDSTIDXI(ptr, reg, w, sz, z, offset) \
bfin_gen_ldstidxi (ptr, reg, w, sz, z, offset)
#define LDST(ptr, reg, aop, sz, z, w) \
bfin_gen_ldst (ptr, reg, aop, sz, z, w)
#define LDSTII(ptr, reg, offset, w, op) \
bfin_gen_ldstii (ptr, reg, offset, w, op)
#define DSPLDST(i, m, reg, aop, w) \
bfin_gen_dspldst (i, reg, aop, w, m)
#define LDSTPMOD(ptr, reg, idx, aop, w) \
bfin_gen_ldstpmod (ptr, reg, aop, w, idx)
#define LDSTIIFP(offset, reg, w) \
bfin_gen_ldstiifp (reg, offset, w)
#define LOGI2OP(dst, src, opc) \
bfin_gen_logi2op (opc, src, dst.regno & CODE_MASK)
#define ALU2OP(dst, src, opc) \
bfin_gen_alu2op (dst, src, opc)
#define BRCC(t, b, offset) \
bfin_gen_brcc (t, b, offset)
#define UJUMP(offset) \
bfin_gen_ujump (offset)
#define PROGCTRL(prgfunc, poprnd) \
bfin_gen_progctrl (prgfunc, poprnd)
#define PUSHPOPMULTIPLE(dr, pr, d, p, w) \
bfin_gen_pushpopmultiple (dr, pr, d, p, w)
#define PUSHPOPREG(reg, w) \
bfin_gen_pushpopreg (reg, w)
#define CALLA(addr, s) \
bfin_gen_calla (addr, s)
#define LINKAGE(r, framesize) \
bfin_gen_linkage (r, framesize)
#define COMPI2OPD(dst, src, op) \
bfin_gen_compi2opd (dst, src, op)
#define COMPI2OPP(dst, src, op) \
bfin_gen_compi2opp (dst, src, op)
#define DAGMODIK(i, op) \
bfin_gen_dagmodik (i, op)
#define DAGMODIM(i, m, op, br) \
bfin_gen_dagmodim (i, m, op, br)
#define COMP3OP(dst, src0, src1, opc) \
bfin_gen_comp3op (src0, src1, dst, opc)
#define PTR2OP(dst, src, opc) \
bfin_gen_ptr2op (dst, src, opc)
#define CCFLAG(x, y, opc, i, g) \
bfin_gen_ccflag (x, y, opc, i, g)
#define CCMV(src, dst, t) \
bfin_gen_ccmv (src, dst, t)
#define CACTRL(reg, a, op) \
bfin_gen_cactrl (reg, a, op)
#define LOOPSETUP(soffset, c, rop, eoffset, reg) \
bfin_gen_loopsetup (soffset, c, rop, eoffset, reg)
#define HL2(r1, r0) (IS_H (r1) << 1 | IS_H (r0))
#define IS_RANGE(bits, expr, sign, mul) \
value_match(expr, bits, sign, mul, 1)
#define IS_URANGE(bits, expr, sign, mul) \
value_match(expr, bits, sign, mul, 0)
#define IS_CONST(expr) (expr->type == Expr_Node_Constant)
#define IS_RELOC(expr) (expr->type != Expr_Node_Constant)
#define IS_IMM(expr, bits) value_match (expr, bits, 0, 1, 1)
#define IS_UIMM(expr, bits) value_match (expr, bits, 0, 1, 0)
#define IS_PCREL4(expr) \
(value_match (expr, 4, 0, 2, 0))
#define IS_LPPCREL10(expr) \
(value_match (expr, 10, 0, 2, 0))
#define IS_PCREL10(expr) \
(value_match (expr, 10, 0, 2, 1))
#define IS_PCREL12(expr) \
(value_match (expr, 12, 0, 2, 1))
#define IS_PCREL24(expr) \
(value_match (expr, 24, 0, 2, 1))
static int value_match (Expr_Node *expr, int sz, int sign, int mul, int issigned);
extern FILE *errorf;
extern INSTR_T insn;
static Expr_Node *binary (Expr_Op_Type, Expr_Node *, Expr_Node *);
static Expr_Node *unary (Expr_Op_Type, Expr_Node *);
static void notethat (char *format, ...);
char *current_inputline;
extern char *yytext;
int yyerror (char *msg);
void error (char *format, ...)
{
va_list ap;
char buffer[2000];
va_start (ap, format);
vsprintf (buffer, format, ap);
va_end (ap);
as_bad (buffer);
}
int
yyerror (char *msg)
{
if (msg[0] == '\0')
error ("%s", msg);
else if (yytext[0] != ';')
error ("%s. Input text was %s.", msg, yytext);
else
error ("%s.", msg);
return -1;
}
static int
in_range_p (Expr_Node *expr, int from, int to, unsigned int mask)
{
int val = EXPR_VALUE (expr);
if (expr->type != Expr_Node_Constant)
return 0;
if (val < from || val > to)
return 0;
return (val & mask) == 0;
}
extern int yylex (void);
#define imm3(x) EXPR_VALUE (x)
#define imm4(x) EXPR_VALUE (x)
#define uimm4(x) EXPR_VALUE (x)
#define imm5(x) EXPR_VALUE (x)
#define uimm5(x) EXPR_VALUE (x)
#define imm6(x) EXPR_VALUE (x)
#define imm7(x) EXPR_VALUE (x)
#define imm16(x) EXPR_VALUE (x)
#define uimm16s4(x) ((EXPR_VALUE (x)) >> 2)
#define uimm16(x) EXPR_VALUE (x)
/* Return true if a value is inside a range. */
#define IN_RANGE(x, low, high) \
(((EXPR_VALUE(x)) >= (low)) && (EXPR_VALUE(x)) <= ((high)))
/* Auxiliary functions. */
static void
neg_value (Expr_Node *expr)
{
expr->value.i_value = -expr->value.i_value;
}
static int
valid_dreg_pair (Register *reg1, Expr_Node *reg2)
{
if (!IS_DREG (*reg1))
{
yyerror ("Dregs expected");
return 0;
}
if (reg1->regno != 1 && reg1->regno != 3)
{
yyerror ("Bad register pair");
return 0;
}
if (imm7 (reg2) != reg1->regno - 1)
{
yyerror ("Bad register pair");
return 0;
}
reg1->regno--;
return 1;
}
static int
check_multiply_halfregs (Macfunc *aa, Macfunc *ab)
{
if ((!REG_EQUAL (aa->s0, ab->s0) && !REG_EQUAL (aa->s0, ab->s1))
|| (!REG_EQUAL (aa->s1, ab->s1) && !REG_EQUAL (aa->s1, ab->s0)))
return yyerror ("Source multiplication register mismatch");
return 0;
}
/* Check (vector) mac funcs and ops. */
static int
check_macfuncs (Macfunc *aa, Opt_mode *opa,
Macfunc *ab, Opt_mode *opb)
{
/* Variables for swapping. */
Macfunc mtmp;
Opt_mode otmp;
/* If a0macfunc comes before a1macfunc, swap them. */
if (aa->n == 0)
{
/* (M) is not allowed here. */
if (opa->MM != 0)
return yyerror ("(M) not allowed with A0MAC");
if (ab->n != 1)
return yyerror ("Vector AxMACs can't be same");
mtmp = *aa; *aa = *ab; *ab = mtmp;
otmp = *opa; *opa = *opb; *opb = otmp;
}
else
{
if (opb->MM != 0)
return yyerror ("(M) not allowed with A0MAC");
if (opa->mod != 0)
return yyerror ("Bad opt mode");
if (ab->n != 0)
return yyerror ("Vector AxMACs can't be same");
}
/* If both ops are one of 0, 1, or 2, we have multiply_halfregs in both
assignment_or_macfuncs. */
if (aa->op < 3 && aa->op >=0
&& ab->op < 3 && ab->op >= 0)
{
if (check_multiply_halfregs (aa, ab) < 0)
return -1;
}
else
{
/* Only one of the assign_macfuncs has a half reg multiply
Evil trick: Just 'OR' their source register codes:
We can do that, because we know they were initialized to 0
in the rules that don't use multiply_halfregs. */
aa->s0.regno |= (ab->s0.regno & CODE_MASK);
aa->s1.regno |= (ab->s1.regno & CODE_MASK);
}
if (aa->w == ab->w && aa->P != ab->P)
{
return yyerror ("macfuncs must differ");
if (aa->w && (aa->dst.regno - ab->dst.regno != 1))
return yyerror ("Destination Dregs must differ by one");
}
/* We assign to full regs, thus obey even/odd rules. */
else if ((aa->w && aa->P && IS_EVEN (aa->dst))
|| (ab->w && ab->P && !IS_EVEN (ab->dst)))
return yyerror ("Even/Odd register assignment mismatch");
/* We assign to half regs, thus obey hi/low rules. */
else if ( (aa->w && !aa->P && !IS_H (aa->dst))
|| (ab->w && !aa->P && IS_H (ab->dst)))
return yyerror ("High/Low register assignment mismatch");
/* Make sure first macfunc has got both P flags ORed. */
aa->P |= ab->P;
/* Make sure mod flags get ORed, too. */
opb->mod |= opa->mod;
return 0;
}
static int
is_group1 (INSTR_T x)
{
/* Group1 is dpsLDST, LDSTpmod, LDST, LDSTiiFP, LDSTii. */
if ((x->value & 0xc000) == 0x8000 || (x->value == 0x0000))
return 1;
return 0;
}
static int
is_group2 (INSTR_T x)
{
if ((((x->value & 0xfc00) == 0x9c00) /* dspLDST. */
&& !((x->value & 0xfde0) == 0x9c60) /* dagMODim. */
&& !((x->value & 0xfde0) == 0x9ce0) /* dagMODim with bit rev. */
&& !((x->value & 0xfde0) == 0x9d60)) /* pick dagMODik. */
|| (x->value == 0x0000))
return 1;
return 0;
}
%}
%union {
INSTR_T instr;
Expr_Node *expr;
SYMBOL_T symbol;
long value;
Register reg;
Macfunc macfunc;
struct { int r0; int s0; int x0; int aop; } modcodes;
struct { int r0; } r0;
Opt_mode mod;
}
/* Tokens. */
/* Vector Specific. */
%token BYTEOP16P BYTEOP16M
%token BYTEOP1P BYTEOP2P BYTEOP2M BYTEOP3P
%token BYTEUNPACK BYTEPACK
%token PACK
%token SAA
%token ALIGN8 ALIGN16 ALIGN24
%token VIT_MAX
%token EXTRACT DEPOSIT EXPADJ SEARCH
%token ONES SIGN SIGNBITS
/* Stack. */
%token LINK UNLINK
/* Registers. */
%token REG
%token PC
%token CCREG BYTE_DREG
%token REG_A_DOUBLE_ZERO REG_A_DOUBLE_ONE
%token A_ZERO_DOT_L A_ZERO_DOT_H A_ONE_DOT_L A_ONE_DOT_H
%token HALF_REG
/* Progctrl. */
%token NOP
%token RTI RTS RTX RTN RTE
%token HLT IDLE
%token STI CLI
%token CSYNC SSYNC
%token EMUEXCPT
%token RAISE EXCPT
%token LSETUP
%token LOOP
%token LOOP_BEGIN
%token LOOP_END
%token DISALGNEXCPT
%token JUMP JUMP_DOT_S JUMP_DOT_L
%token CALL
/* Emulator only. */
%token ABORT
/* Operators. */
%token NOT TILDA BANG
%token AMPERSAND BAR
%token PERCENT
%token CARET
%token BXOR
%token MINUS PLUS STAR SLASH
%token NEG
%token MIN MAX ABS
%token DOUBLE_BAR
%token _PLUS_BAR_PLUS _PLUS_BAR_MINUS _MINUS_BAR_PLUS _MINUS_BAR_MINUS
%token _MINUS_MINUS _PLUS_PLUS
/* Shift/rotate ops. */
%token SHIFT LSHIFT ASHIFT BXORSHIFT
%token _GREATER_GREATER_GREATER_THAN_ASSIGN
%token ROT
%token LESS_LESS GREATER_GREATER
%token _GREATER_GREATER_GREATER
%token _LESS_LESS_ASSIGN _GREATER_GREATER_ASSIGN
%token DIVS DIVQ
/* In place operators. */
%token ASSIGN _STAR_ASSIGN
%token _BAR_ASSIGN _CARET_ASSIGN _AMPERSAND_ASSIGN
%token _MINUS_ASSIGN _PLUS_ASSIGN
/* Assignments, comparisons. */
%token _ASSIGN_BANG _LESS_THAN_ASSIGN _ASSIGN_ASSIGN
%token GE LT LE GT
%token LESS_THAN
/* Cache. */
%token FLUSHINV FLUSH
%token IFLUSH PREFETCH
/* Misc. */
%token PRNT
%token OUTC
%token WHATREG
%token TESTSET
/* Modifiers. */
%token ASL ASR
%token B W
%token NS S CO SCO
%token TH TL
%token BP
%token BREV
%token X Z
%token M MMOD
%token R RND RNDL RNDH RND12 RND20
%token V
%token LO HI
/* Bit ops. */
%token BITTGL BITCLR BITSET BITTST BITMUX
/* Debug. */
%token DBGAL DBGAH DBGHALT DBG DBGA DBGCMPLX
/* Semantic auxiliaries. */
%token IF COMMA BY
%token COLON SEMICOLON
%token RPAREN LPAREN LBRACK RBRACK
%token STATUS_REG
%token MNOP
%token SYMBOL NUMBER
%token GOT GOT17M4 FUNCDESC_GOT17M4
%token AT PLTPC
/* Types. */
%type <instr> asm
%type <value> MMOD
%type <mod> opt_mode
%type <value> NUMBER
%type <r0> aligndir
%type <modcodes> byteop_mod
%type <reg> a_assign
%type <reg> a_plusassign
%type <reg> a_minusassign
%type <macfunc> multiply_halfregs
%type <macfunc> assign_macfunc
%type <macfunc> a_macfunc
%type <expr> expr_1
%type <instr> asm_1
%type <r0> vmod
%type <modcodes> vsmod
%type <modcodes> ccstat
%type <r0> cc_op
%type <reg> CCREG
%type <reg> reg_with_postinc
%type <reg> reg_with_predec
%type <r0> searchmod
%type <expr> symbol
%type <symbol> SYMBOL
%type <expr> eterm
%type <reg> REG
%type <reg> BYTE_DREG
%type <reg> REG_A_DOUBLE_ZERO
%type <reg> REG_A_DOUBLE_ONE
%type <reg> REG_A
%type <reg> STATUS_REG
%type <expr> expr
%type <r0> xpmod
%type <r0> xpmod1
%type <modcodes> smod
%type <modcodes> b3_op
%type <modcodes> rnd_op
%type <modcodes> post_op
%type <reg> HALF_REG
%type <r0> iu_or_nothing
%type <r0> plus_minus
%type <r0> asr_asl
%type <r0> asr_asl_0
%type <modcodes> sco
%type <modcodes> amod0
%type <modcodes> amod1
%type <modcodes> amod2
%type <r0> op_bar_op
%type <r0> w32_or_nothing
%type <r0> c_align
%type <r0> min_max
%type <expr> got
%type <expr> got_or_expr
%type <expr> pltpc
%type <value> any_gotrel GOT GOT17M4 FUNCDESC_GOT17M4
/* Precedence rules. */
%left BAR
%left CARET
%left AMPERSAND
%left LESS_LESS GREATER_GREATER
%left PLUS MINUS
%left STAR SLASH PERCENT
%right ASSIGN
%right TILDA BANG
%start statement
%%
statement:
| asm
{
insn = $1;
if (insn == (INSTR_T) 0)
return NO_INSN_GENERATED;
else if (insn == (INSTR_T) - 1)
return SEMANTIC_ERROR;
else
return INSN_GENERATED;
}
;
asm: asm_1 SEMICOLON
/* Parallel instructions. */
| asm_1 DOUBLE_BAR asm_1 DOUBLE_BAR asm_1 SEMICOLON
{
if (($1->value & 0xf800) == 0xc000)
{
if (is_group1 ($3) && is_group2 ($5))
$$ = bfin_gen_multi_instr ($1, $3, $5);
else if (is_group2 ($3) && is_group1 ($5))
$$ = bfin_gen_multi_instr ($1, $5, $3);
else
return yyerror ("Wrong 16 bit instructions groups, slot 2 and slot 3 must be 16-bit instrution group");
}
else if (($3->value & 0xf800) == 0xc000)
{
if (is_group1 ($1) && is_group2 ($5))
$$ = bfin_gen_multi_instr ($3, $1, $5);
else if (is_group2 ($1) && is_group1 ($5))
$$ = bfin_gen_multi_instr ($3, $5, $1);
else
return yyerror ("Wrong 16 bit instructions groups, slot 1 and slot 3 must be 16-bit instrution group");
}
else if (($5->value & 0xf800) == 0xc000)
{
if (is_group1 ($1) && is_group2 ($3))
$$ = bfin_gen_multi_instr ($5, $1, $3);
else if (is_group2 ($1) && is_group1 ($3))
$$ = bfin_gen_multi_instr ($5, $3, $1);
else
return yyerror ("Wrong 16 bit instructions groups, slot 1 and slot 2 must be 16-bit instrution group");
}
else
error ("\nIllegal Multi Issue Construct, at least any one of the slot must be DSP32 instruction group\n");
}
| asm_1 DOUBLE_BAR asm_1 SEMICOLON
{
if (($1->value & 0xf800) == 0xc000)
{
if (is_group1 ($3))
$$ = bfin_gen_multi_instr ($1, $3, 0);
else if (is_group2 ($3))
$$ = bfin_gen_multi_instr ($1, 0, $3);
else
return yyerror ("Wrong 16 bit instructions groups, slot 2 must be the 16-bit instruction group");
}
else if (($3->value & 0xf800) == 0xc000)
{
if (is_group1 ($1))
$$ = bfin_gen_multi_instr ($3, $1, 0);
else if (is_group2 ($1))
$$ = bfin_gen_multi_instr ($3, 0, $1);
else
return yyerror ("Wrong 16 bit instructions groups, slot 1 must be the 16-bit instruction group");
}
else if (is_group1 ($1) && is_group2 ($3))
$$ = bfin_gen_multi_instr (0, $1, $3);
else if (is_group2 ($1) && is_group1 ($3))
$$ = bfin_gen_multi_instr (0, $3, $1);
else
return yyerror ("Wrong 16 bit instructions groups, slot 1 and slot 2 must be the 16-bit instruction group");
}
| error
{
$$ = 0;
yyerror ("");
yyerrok;
}
;
/* DSPMAC. */
asm_1:
MNOP
{
$$ = DSP32MAC (3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0);
}
| assign_macfunc opt_mode
{
int op0, op1;
int w0 = 0, w1 = 0;
int h00, h10, h01, h11;
if ($1.n == 0)
{
if ($2.MM)
return yyerror ("(m) not allowed with a0 unit");
op1 = 3;
op0 = $1.op;
w1 = 0;
w0 = $1.w;
h00 = IS_H ($1.s0);
h10 = IS_H ($1.s1);
h01 = h11 = 0;
}
else
{
op1 = $1.op;
op0 = 3;
w1 = $1.w;
w0 = 0;
h00 = h10 = 0;
h01 = IS_H ($1.s0);
h11 = IS_H ($1.s1);
}
$$ = DSP32MAC (op1, $2.MM, $2.mod, w1, $1.P, h01, h11, h00, h10,
&$1.dst, op0, &$1.s0, &$1.s1, w0);
}
/* VECTOR MACs. */
| assign_macfunc opt_mode COMMA assign_macfunc opt_mode
{
Register *dst;
if (check_macfuncs (&$1, &$2, &$4, &$5) < 0)
return -1;
notethat ("assign_macfunc (.), assign_macfunc (.)\n");
if ($1.w)
dst = &$1.dst;
else
dst = &$4.dst;
$$ = DSP32MAC ($1.op, $2.MM, $5.mod, $1.w, $1.P,
IS_H ($1.s0), IS_H ($1.s1), IS_H ($4.s0), IS_H ($4.s1),
dst, $4.op, &$1.s0, &$1.s1, $4.w);
}
/* DSPALU. */
| DISALGNEXCPT
{
notethat ("dsp32alu: DISALGNEXCPT\n");
$$ = DSP32ALU (18, 0, 0, 0, 0, 0, 0, 0, 3);
}
| REG ASSIGN LPAREN a_plusassign REG_A RPAREN
{
if (IS_DREG ($1) && !IS_A1 ($4) && IS_A1 ($5))
{
notethat ("dsp32alu: dregs = ( A0 += A1 )\n");
$$ = DSP32ALU (11, 0, 0, &$1, 0, 0, 0, 0, 0);
}
else
return yyerror ("Register mismatch");
}
| HALF_REG ASSIGN LPAREN a_plusassign REG_A RPAREN
{
if (!IS_A1 ($4) && IS_A1 ($5))
{
notethat ("dsp32alu: dregs_half = ( A0 += A1 )\n");
$$ = DSP32ALU (11, IS_H ($1), 0, &$1, 0, 0, 0, 0, 1);
}
else
return yyerror ("Register mismatch");
}
| A_ZERO_DOT_H ASSIGN HALF_REG
{
notethat ("dsp32alu: A_ZERO_DOT_H = dregs_hi\n");
$$ = DSP32ALU (9, IS_H ($3), 0, 0, &$3, 0, 0, 0, 0);
}
| A_ONE_DOT_H ASSIGN HALF_REG
{
notethat ("dsp32alu: A_ZERO_DOT_H = dregs_hi\n");
$$ = DSP32ALU (9, IS_H ($3), 0, 0, &$3, 0, 0, 0, 2);
}
| LPAREN REG COMMA REG RPAREN ASSIGN BYTEOP16P LPAREN REG
COLON expr COMMA REG COLON expr RPAREN aligndir
{
if (!IS_DREG ($2) || !IS_DREG ($4))
return yyerror ("Dregs expected");
else if (!valid_dreg_pair (&$9, $11))
return yyerror ("Bad dreg pair");
else if (!valid_dreg_pair (&$13, $15))
return yyerror ("Bad dreg pair");
else
{
notethat ("dsp32alu: (dregs , dregs ) = BYTEOP16P (dregs_pair , dregs_pair ) (half)\n");
$$ = DSP32ALU (21, 0, &$2, &$4, &$9, &$13, $17.r0, 0, 0);
}
}
| LPAREN REG COMMA REG RPAREN ASSIGN BYTEOP16M LPAREN REG COLON expr COMMA
REG COLON expr RPAREN aligndir
{
if (!IS_DREG ($2) || !IS_DREG($4))
return yyerror ("Dregs expected");
else if (!valid_dreg_pair (&$9, $11))
return yyerror ("Bad dreg pair");
else if (!valid_dreg_pair (&$13, $15))
return yyerror ("Bad dreg pair");
else
{
notethat ("dsp32alu: (dregs , dregs ) = BYTEOP16M (dregs_pair , dregs_pair ) (aligndir)\n");
$$ = DSP32ALU (21, 0, &$2, &$4, &$9, &$13, $17.r0, 0, 1);
}
}
| LPAREN REG COMMA REG RPAREN ASSIGN BYTEUNPACK REG COLON expr aligndir
{
if (!IS_DREG ($2) || !IS_DREG ($4))
return yyerror ("Dregs expected");
else if (!valid_dreg_pair (&$8, $10))
return yyerror ("Bad dreg pair");
else
{
notethat ("dsp32alu: (dregs , dregs ) = BYTEUNPACK dregs_pair (aligndir)\n");
$$ = DSP32ALU (24, 0, &$2, &$4, &$8, 0, $11.r0, 0, 1);
}
}
| LPAREN REG COMMA REG RPAREN ASSIGN SEARCH REG LPAREN searchmod RPAREN
{
if (IS_DREG ($2) && IS_DREG ($4) && IS_DREG ($8))
{
notethat ("dsp32alu: (dregs , dregs ) = SEARCH dregs (searchmod)\n");
$$ = DSP32ALU (13, 0, &$2, &$4, &$8, 0, 0, 0, $10.r0);
}
else
return yyerror ("Register mismatch");
}
| REG ASSIGN A_ONE_DOT_L PLUS A_ONE_DOT_H COMMA
REG ASSIGN A_ZERO_DOT_L PLUS A_ZERO_DOT_H
{
if (IS_DREG ($1) && IS_DREG ($7))
{
notethat ("dsp32alu: dregs = A1.l + A1.h, dregs = A0.l + A0.h \n");
$$ = DSP32ALU (12, 0, &$1, &$7, 0, 0, 0, 0, 1);
}
else
return yyerror ("Register mismatch");
}
| REG ASSIGN REG_A PLUS REG_A COMMA REG ASSIGN REG_A MINUS REG_A amod1
{
if (IS_DREG ($1) && IS_DREG ($7) && !REG_SAME ($3, $5)
&& IS_A1 ($9) && !IS_A1 ($11))
{
notethat ("dsp32alu: dregs = A1 + A0 , dregs = A1 - A0 (amod1)\n");
$$ = DSP32ALU (17, 0, &$1, &$7, 0, 0, $12.s0, $12.x0, 0);
}
else if (IS_DREG ($1) && IS_DREG ($7) && !REG_SAME ($3, $5)
&& !IS_A1 ($9) && IS_A1 ($11))
{
notethat ("dsp32alu: dregs = A0 + A1 , dregs = A0 - A1 (amod1)\n");
$$ = DSP32ALU (17, 0, &$1, &$7, 0, 0, $12.s0, $12.x0, 1);
}
else
return yyerror ("Register mismatch");
}
| REG ASSIGN REG plus_minus REG COMMA REG ASSIGN REG plus_minus REG amod1
{
if ($4.r0 == $10.r0)
return yyerror ("Operators must differ");
if (IS_DREG ($1) && IS_DREG ($3) && IS_DREG ($5)
&& REG_SAME ($3, $9) && REG_SAME ($5, $11))
{
notethat ("dsp32alu: dregs = dregs + dregs,"
"dregs = dregs - dregs (amod1)\n");
$$ = DSP32ALU (4, 0, &$1, &$7, &$3, &$5, $12.s0, $12.x0, 2);
}
else
return yyerror ("Register mismatch");
}
/* Bar Operations. */
| REG ASSIGN REG op_bar_op REG COMMA REG ASSIGN REG op_bar_op REG amod2
{
if (!REG_SAME ($3, $9) || !REG_SAME ($5, $11))
return yyerror ("Differing source registers");
if (!IS_DREG ($1) || !IS_DREG ($3) || !IS_DREG ($5) || !IS_DREG ($7))
return yyerror ("Dregs expected");
if ($4.r0 == 1 && $10.r0 == 2)
{
notethat ("dsp32alu: dregs = dregs .|. dregs , dregs = dregs .|. dregs (amod2)\n");
$$ = DSP32ALU (1, 1, &$1, &$7, &$3, &$5, $12.s0, $12.x0, $12.r0);
}
else if ($4.r0 == 0 && $10.r0 == 3)
{
notethat ("dsp32alu: dregs = dregs .|. dregs , dregs = dregs .|. dregs (amod2)\n");
$$ = DSP32ALU (1, 0, &$1, &$7, &$3, &$5, $12.s0, $12.x0, $12.r0);
}
else
return yyerror ("Bar operand mismatch");
}
| REG ASSIGN ABS REG vmod
{
int op;
if (IS_DREG ($1) && IS_DREG ($4))
{
if ($5.r0)
{
notethat ("dsp32alu: dregs = ABS dregs (v)\n");
op = 6;
}
else
{
/* Vector version of ABS. */
notethat ("dsp32alu: dregs = ABS dregs\n");
op = 7;
}
$$ = DSP32ALU (op, 0, 0, &$1, &$4, 0, 0, 0, 2);
}
else
return yyerror ("Dregs expected");
}
| a_assign ABS REG_A
{
notethat ("dsp32alu: Ax = ABS Ax\n");
$$ = DSP32ALU (16, IS_A1 ($1), 0, 0, 0, 0, 0, 0, IS_A1 ($3));
}
| A_ZERO_DOT_L ASSIGN HALF_REG
{
if (IS_DREG_L ($3))
{
notethat ("dsp32alu: A0.l = reg_half\n");
$$ = DSP32ALU (9, IS_H ($3), 0, 0, &$3, 0, 0, 0, 0);
}
else
return yyerror ("A0.l = Rx.l expected");
}
| A_ONE_DOT_L ASSIGN HALF_REG
{
if (IS_DREG_L ($3))
{
notethat ("dsp32alu: A1.l = reg_half\n");
$$ = DSP32ALU (9, IS_H ($3), 0, 0, &$3, 0, 0, 0, 2);
}
else
return yyerror ("A1.l = Rx.l expected");
}
| REG ASSIGN c_align LPAREN REG COMMA REG RPAREN
{
if (IS_DREG ($1) && IS_DREG ($5) && IS_DREG ($7))
{
notethat ("dsp32shift: dregs = ALIGN8 (dregs , dregs )\n");
$$ = DSP32SHIFT (13, &$1, &$7, &$5, $3.r0, 0);
}
else
return yyerror ("Dregs expected");
}
| REG ASSIGN BYTEOP1P LPAREN REG COLON expr COMMA REG COLON expr RPAREN byteop_mod
{
if (!IS_DREG ($1))
return yyerror ("Dregs expected");
else if (!valid_dreg_pair (&$5, $7))
return yyerror ("Bad dreg pair");
else if (!valid_dreg_pair (&$9, $11))
return yyerror ("Bad dreg pair");
else
{
notethat ("dsp32alu: dregs = BYTEOP1P (dregs_pair , dregs_pair ) (T)\n");
$$ = DSP32ALU (20, 0, 0, &$1, &$5, &$9, $13.s0, 0, $13.r0);
}
}
| REG ASSIGN BYTEOP1P LPAREN REG COLON expr COMMA REG COLON expr RPAREN
{
if (!IS_DREG ($1))
return yyerror ("Dregs expected");
else if (!valid_dreg_pair (&$5, $7))
return yyerror ("Bad dreg pair");
else if (!valid_dreg_pair (&$9, $11))
return yyerror ("Bad dreg pair");
else
{
notethat ("dsp32alu: dregs = BYTEOP1P (dregs_pair , dregs_pair ) (T)\n");
$$ = DSP32ALU (20, 0, 0, &$1, &$5, &$9, 0, 0, 0);
}
}
| REG ASSIGN BYTEOP2P LPAREN REG COLON expr COMMA REG COLON expr RPAREN
rnd_op
{
if (!IS_DREG ($1))
return yyerror ("Dregs expected");
else if (!valid_dreg_pair (&$5, $7))
return yyerror ("Bad dreg pair");
else if (!valid_dreg_pair (&$9, $11))
return yyerror ("Bad dreg pair");
else
{
notethat ("dsp32alu: dregs = BYTEOP2P (dregs_pair , dregs_pair ) (rnd_op)\n");
$$ = DSP32ALU (22, $13.r0, 0, &$1, &$5, &$9, $13.s0, $13.x0, $13.aop);
}
}
| REG ASSIGN BYTEOP2M LPAREN REG COLON expr COMMA REG COLON expr RPAREN
rnd_op
{
if (!IS_DREG ($1))
return yyerror ("Dregs expected");
else if (!valid_dreg_pair (&$5, $7))
return yyerror ("Bad dreg pair");
else if (!valid_dreg_pair (&$9, $11))
return yyerror ("Bad dreg pair");
else
{
notethat ("dsp32alu: dregs = BYTEOP2P (dregs_pair , dregs_pair ) (rnd_op)\n");
$$ = DSP32ALU (22, $13.r0, 0, &$1, &$5, &$9, $13.s0, 0, $13.x0);
}
}
| REG ASSIGN BYTEOP3P LPAREN REG COLON expr COMMA REG COLON expr RPAREN
b3_op
{
if (!IS_DREG ($1))
return yyerror ("Dregs expected");
else if (!valid_dreg_pair (&$5, $7))
return yyerror ("Bad dreg pair");
else if (!valid_dreg_pair (&$9, $11))
return yyerror ("Bad dreg pair");
else
{
notethat ("dsp32alu: dregs = BYTEOP3P (dregs_pair , dregs_pair ) (b3_op)\n");
$$ = DSP32ALU (23, $13.x0, 0, &$1, &$5, &$9, $13.s0, 0, 0);
}
}
| REG ASSIGN BYTEPACK LPAREN REG COMMA REG RPAREN
{
if (IS_DREG ($1) && IS_DREG ($5) && IS_DREG ($7))
{
notethat ("dsp32alu: dregs = BYTEPACK (dregs , dregs )\n");
$$ = DSP32ALU (24, 0, 0, &$1, &$5, &$7, 0, 0, 0);
}
else
return yyerror ("Dregs expected");
}
| HALF_REG ASSIGN HALF_REG ASSIGN SIGN LPAREN HALF_REG RPAREN STAR
HALF_REG PLUS SIGN LPAREN HALF_REG RPAREN STAR HALF_REG
{
if (IS_HCOMPL ($1, $3) && IS_HCOMPL ($7, $14) && IS_HCOMPL ($10, $17))
{
notethat ("dsp32alu: dregs_hi = dregs_lo ="
"SIGN (dregs_hi) * dregs_hi + "
"SIGN (dregs_lo) * dregs_lo \n");
$$ = DSP32ALU (12, 0, 0, &$1, &$7, &$10, 0, 0, 0);
}
else
return yyerror ("Dregs expected");
}
| REG ASSIGN REG plus_minus REG amod1
{
if (IS_DREG ($1) && IS_DREG ($3) && IS_DREG ($5))
{
if ($6.aop == 0)
{
/* No saturation flag specified, generate the 16 bit variant. */
notethat ("COMP3op: dregs = dregs +- dregs\n");
$$ = COMP3OP (&$1, &$3, &$5, $4.r0);
}
else
{
/* Saturation flag specified, generate the 32 bit variant. */
notethat ("dsp32alu: dregs = dregs +- dregs (amod1)\n");
$$ = DSP32ALU (4, 0, 0, &$1, &$3, &$5, $6.s0, $6.x0, $4.r0);
}
}
else
if (IS_PREG ($1) && IS_PREG ($3) && IS_PREG ($5) && $4.r0 == 0)
{
notethat ("COMP3op: pregs = pregs + pregs\n");
$$ = COMP3OP (&$1, &$3, &$5, 5);
}
else
return yyerror ("Dregs expected");
}
| REG ASSIGN min_max LPAREN REG COMMA REG RPAREN vmod
{
int op;
if (IS_DREG ($1) && IS_DREG ($5) && IS_DREG ($7))
{
if ($9.r0)
op = 6;
else
op = 7;
notethat ("dsp32alu: dregs = {MIN|MAX} (dregs, dregs)\n");
$$ = DSP32ALU (op, 0, 0, &$1, &$5, &$7, 0, 0, $3.r0);
}
else
return yyerror ("Dregs expected");
}
| a_assign MINUS REG_A
{
notethat ("dsp32alu: Ax = - Ax\n");
$$ = DSP32ALU (14, IS_A1 ($1), 0, 0, 0, 0, 0, 0, IS_A1 ($3));
}
| HALF_REG ASSIGN HALF_REG plus_minus HALF_REG amod1
{
notethat ("dsp32alu: dregs_lo = dregs_lo +- dregs_lo (amod1)\n");
$$ = DSP32ALU (2 | $4.r0, IS_H ($1), 0, &$1, &$3, &$5,
$6.s0, $6.x0, HL2 ($3, $5));
}
| a_assign a_assign expr
{
if (EXPR_VALUE ($3) == 0 && !REG_SAME ($1, $2))
{
notethat ("dsp32alu: A1 = A0 = 0\n");
$$ = DSP32ALU (8, 0, 0, 0, 0, 0, 0, 0, 2);
}
else
return yyerror ("Bad value, 0 expected");
}
/* Saturating. */
| a_assign REG_A LPAREN S RPAREN
{
if (REG_SAME ($1, $2))
{
notethat ("dsp32alu: Ax = Ax (S)\n");
$$ = DSP32ALU (8, 0, 0, 0, 0, 0, 1, 0, IS_A1 ($1));
}
else
return yyerror ("Registers must be equal");
}
| HALF_REG ASSIGN REG LPAREN RND RPAREN
{
if (IS_DREG ($3))
{
notethat ("dsp32alu: dregs_half = dregs (RND)\n");
$$ = DSP32ALU (12, IS_H ($1), 0, &$1, &$3, 0, 0, 0, 3);
}
else
return yyerror ("Dregs expected");
}
| HALF_REG ASSIGN REG plus_minus REG LPAREN RND12 RPAREN
{
if (IS_DREG ($3) && IS_DREG ($5))
{
notethat ("dsp32alu: dregs_half = dregs (+-) dregs (RND12)\n");
$$ = DSP32ALU (5, IS_H ($1), 0, &$1, &$3, &$5, 0, 0, $4.r0);
}
else
return yyerror ("Dregs expected");
}
| HALF_REG ASSIGN REG plus_minus REG LPAREN RND20 RPAREN
{
if (IS_DREG ($3) && IS_DREG ($5))
{
notethat ("dsp32alu: dregs_half = dregs -+ dregs (RND20)\n");
$$ = DSP32ALU (5, IS_H ($1), 0, &$1, &$3, &$5, 0, 1, $4.r0 | 2);
}
else
return yyerror ("Dregs expected");
}
| a_assign REG_A
{
if (!REG_SAME ($1, $2))
{
notethat ("dsp32alu: An = Am\n");
$$ = DSP32ALU (8, 0, 0, 0, 0, 0, IS_A1 ($1), 0, 3);
}
else
return yyerror ("Accu reg arguments must differ");
}
| a_assign REG
{
if (IS_DREG ($2))
{
notethat ("dsp32alu: An = dregs\n");
$$ = DSP32ALU (9, 0, 0, 0, &$2, 0, 1, 0, IS_A1 ($1) << 1);
}
else
return yyerror ("Dregs expected");
}
| REG ASSIGN HALF_REG xpmod
{
if (!IS_H ($3))
{
if ($1.regno == REG_A0x && IS_DREG ($3))
{
notethat ("dsp32alu: A0.x = dregs_lo\n");
$$ = DSP32ALU (9, 0, 0, 0, &$3, 0, 0, 0, 1);
}
else if ($1.regno == REG_A1x && IS_DREG ($3))
{
notethat ("dsp32alu: A1.x = dregs_lo\n");
$$ = DSP32ALU (9, 0, 0, 0, &$3, 0, 0, 0, 3);
}
else if (IS_DREG ($1) && IS_DREG ($3))
{
notethat ("ALU2op: dregs = dregs_lo\n");
$$ = ALU2OP (&$1, &$3, 10 | ($4.r0 ? 0: 1));
}
else
return yyerror ("Register mismatch");
}
else
return yyerror ("Low reg expected");
}
| HALF_REG ASSIGN expr
{
notethat ("LDIMMhalf: pregs_half = imm16\n");
if (!IS_DREG ($1) && !IS_PREG ($1) && !IS_IREG ($1)
&& !IS_MREG ($1) && !IS_BREG ($1) && !IS_LREG ($1))
return yyerror ("Wrong register for load immediate");
if (!IS_IMM ($3, 16) && !IS_UIMM ($3, 16))
return yyerror ("Constant out of range");
$$ = LDIMMHALF_R (&$1, IS_H ($1), 0, 0, $3);
}
| a_assign expr
{
notethat ("dsp32alu: An = 0\n");
if (imm7 ($2) != 0)
return yyerror ("0 expected");
$$ = DSP32ALU (8, 0, 0, 0, 0, 0, 0, 0, IS_A1 ($1));
}
| REG ASSIGN expr xpmod1
{
if (!IS_DREG ($1) && !IS_PREG ($1) && !IS_IREG ($1)
&& !IS_MREG ($1) && !IS_BREG ($1) && !IS_LREG ($1))
return yyerror ("Wrong register for load immediate");
if ($4.r0 == 0)
{
/* 7 bit immediate value if possible.
We will check for that constant value for efficiency
If it goes to reloc, it will be 16 bit. */
if (IS_CONST ($3) && IS_IMM ($3, 7) && IS_DREG ($1))
{
notethat ("COMPI2opD: dregs = imm7 (x) \n");
$$ = COMPI2OPD (&$1, imm7 ($3), 0);
}
else if (IS_CONST ($3) && IS_IMM ($3, 7) && IS_PREG ($1))
{
notethat ("COMPI2opP: pregs = imm7 (x)\n");
$$ = COMPI2OPP (&$1, imm7 ($3), 0);
}
else
{
if (IS_CONST ($3) && !IS_IMM ($3, 16))
return yyerror ("Immediate value out of range");
notethat ("LDIMMhalf: regs = luimm16 (x)\n");
/* reg, H, S, Z. */
$$ = LDIMMHALF_R5 (&$1, 0, 1, 0, $3);
}
}
else
{
/* (z) There is no 7 bit zero extended instruction.
If the expr is a relocation, generate it. */
if (IS_CONST ($3) && !IS_UIMM ($3, 16))
return yyerror ("Immediate value out of range");
notethat ("LDIMMhalf: regs = luimm16 (x)\n");
/* reg, H, S, Z. */
$$ = LDIMMHALF_R5 (&$1, 0, 0, 1, $3);
}
}
| HALF_REG ASSIGN REG
{
if (IS_H ($1))
return yyerror ("Low reg expected");
if (IS_DREG ($1) && $3.regno == REG_A0x)
{
notethat ("dsp32alu: dregs_lo = A0.x\n");
$$ = DSP32ALU (10, 0, 0, &$1, 0, 0, 0, 0, 0);
}
else if (IS_DREG ($1) && $3.regno == REG_A1x)
{
notethat ("dsp32alu: dregs_lo = A1.x\n");
$$ = DSP32ALU (10, 0, 0, &$1, 0, 0, 0, 0, 1);
}
else
return yyerror ("Register mismatch");
}
| REG ASSIGN REG op_bar_op REG amod0
{
if (IS_DREG ($1) && IS_DREG ($3) && IS_DREG ($5))
{
notethat ("dsp32alu: dregs = dregs .|. dregs (amod0)\n");
$$ = DSP32ALU (0, 0, 0, &$1, &$3, &$5, $6.s0, $6.x0, $4.r0);
}
else
return yyerror ("Register mismatch");
}
| REG ASSIGN BYTE_DREG xpmod
{
if (IS_DREG ($1) && IS_DREG ($3))
{
notethat ("ALU2op: dregs = dregs_byte\n");
$$ = ALU2OP (&$1, &$3, 12 | ($4.r0 ? 0: 1));
}
else
return yyerror ("Register mismatch");
}
| a_assign ABS REG_A COMMA a_assign ABS REG_A
{
if (REG_SAME ($1, $3) && REG_SAME ($5, $7) && !REG_SAME ($1, $5))
{
notethat ("dsp32alu: A1 = ABS A1 , A0 = ABS A0\n");
$$ = DSP32ALU (16, 0, 0, 0, 0, 0, 0, 0, 3);
}
else
return yyerror ("Register mismatch");
}
| a_assign MINUS REG_A COMMA a_assign MINUS REG_A
{
if (REG_SAME ($1, $3) && REG_SAME ($5, $7) && !REG_SAME ($1, $5))
{
notethat ("dsp32alu: A1 = - A1 , A0 = - A0\n");
$$ = DSP32ALU (14, 0, 0, 0, 0, 0, 0, 0, 3);
}
else
return yyerror ("Register mismatch");
}
| a_minusassign REG_A w32_or_nothing
{
if (!IS_A1 ($1) && IS_A1 ($2))
{
notethat ("dsp32alu: A0 -= A1\n");
$$ = DSP32ALU (11, 0, 0, 0, 0, 0, $3.r0, 0, 3);
}
else
return yyerror ("Register mismatch");
}
| REG _MINUS_ASSIGN expr
{
if (IS_IREG ($1) && EXPR_VALUE ($3) == 4)
{
notethat ("dagMODik: iregs -= 4\n");
$$ = DAGMODIK (&$1, 3);
}
else if (IS_IREG ($1) && EXPR_VALUE ($3) == 2)
{
notethat ("dagMODik: iregs -= 2\n");
$$ = DAGMODIK (&$1, 1);
}
else
return yyerror ("Register or value mismatch");
}
| REG _PLUS_ASSIGN REG LPAREN BREV RPAREN
{
if (IS_IREG ($1) && IS_MREG ($3))
{
notethat ("dagMODim: iregs += mregs (opt_brev)\n");
/* i, m, op, br. */
$$ = DAGMODIM (&$1, &$3, 0, 1);
}
else if (IS_PREG ($1) && IS_PREG ($3))
{
notethat ("PTR2op: pregs += pregs (BREV )\n");
$$ = PTR2OP (&$1, &$3, 5);
}
else
return yyerror ("Register mismatch");
}
| REG _MINUS_ASSIGN REG
{
if (IS_IREG ($1) && IS_MREG ($3))
{
notethat ("dagMODim: iregs -= mregs\n");
$$ = DAGMODIM (&$1, &$3, 1, 0);
}
else if (IS_PREG ($1) && IS_PREG ($3))
{
notethat ("PTR2op: pregs -= pregs\n");
$$ = PTR2OP (&$1, &$3, 0);
}
else
return yyerror ("Register mismatch");
}
| REG_A _PLUS_ASSIGN REG_A w32_or_nothing
{
if (!IS_A1 ($1) && IS_A1 ($3))
{
notethat ("dsp32alu: A0 += A1 (W32)\n");
$$ = DSP32ALU (11, 0, 0, 0, 0, 0, $4.r0, 0, 2);
}
else
return yyerror ("Register mismatch");
}
| REG _PLUS_ASSIGN REG
{
if (IS_IREG ($1) && IS_MREG ($3))
{
notethat ("dagMODim: iregs += mregs\n");
$$ = DAGMODIM (&$1, &$3, 0, 0);
}
else
return yyerror ("iregs += mregs expected");
}
| REG _PLUS_ASSIGN expr
{
if (IS_IREG ($1))
{
if (EXPR_VALUE ($3) == 4)
{
notethat ("dagMODik: iregs += 4\n");
$$ = DAGMODIK (&$1, 2);
}
else if (EXPR_VALUE ($3) == 2)
{
notethat ("dagMODik: iregs += 2\n");
$$ = DAGMODIK (&$1, 0);
}
else
return yyerror ("iregs += [ 2 | 4 ");
}
else if (IS_PREG ($1) && IS_IMM ($3, 7))
{
notethat ("COMPI2opP: pregs += imm7\n");
$$ = COMPI2OPP (&$1, imm7 ($3), 1);
}
else if (IS_DREG ($1) && IS_IMM ($3, 7))
{
notethat ("COMPI2opD: dregs += imm7\n");
$$ = COMPI2OPD (&$1, imm7 ($3), 1);
}
else
return yyerror ("Register mismatch");
}
| REG _STAR_ASSIGN REG
{
if (IS_DREG ($1) && IS_DREG ($3))
{
notethat ("ALU2op: dregs *= dregs\n");
$$ = ALU2OP (&$1, &$3, 3);
}
else
return yyerror ("Register mismatch");
}
| SAA LPAREN REG COLON expr COMMA REG COLON expr RPAREN aligndir
{
if (!valid_dreg_pair (&$3, $5))
return yyerror ("Bad dreg pair");
else if (!valid_dreg_pair (&$7, $9))
return yyerror ("Bad dreg pair");
else
{
notethat ("dsp32alu: SAA (dregs_pair , dregs_pair ) (aligndir)\n");
$$ = DSP32ALU (18, 0, 0, 0, &$3, &$7, $11.r0, 0, 0);
}
}
| a_assign REG_A LPAREN S RPAREN COMMA a_assign REG_A LPAREN S RPAREN
{
if (REG_SAME ($1, $2) && REG_SAME ($7, $8) && !REG_SAME ($1, $7))
{
notethat ("dsp32alu: A1 = A1 (S) , A0 = A0 (S)\n");
$$ = DSP32ALU (8, 0, 0, 0, 0, 0, 1, 0, 2);
}
else
return yyerror ("Register mismatch");
}
| REG ASSIGN LPAREN REG PLUS REG RPAREN LESS_LESS expr
{
if (IS_DREG ($1) && IS_DREG ($4) && IS_DREG ($6)
&& REG_SAME ($1, $4))
{
if (EXPR_VALUE ($9) == 1)
{
notethat ("ALU2op: dregs = (dregs + dregs) << 1\n");
$$ = ALU2OP (&$1, &$6, 4);
}
else if (EXPR_VALUE ($9) == 2)
{
notethat ("ALU2op: dregs = (dregs + dregs) << 2\n");
$$ = ALU2OP (&$1, &$6, 5);
}
else
return yyerror ("Bad shift value");
}
else if (IS_PREG ($1) && IS_PREG ($4) && IS_PREG ($6)
&& REG_SAME ($1, $4))
{
if (EXPR_VALUE ($9) == 1)
{
notethat ("PTR2op: pregs = (pregs + pregs) << 1\n");
$$ = PTR2OP (&$1, &$6, 6);
}
else if (EXPR_VALUE ($9) == 2)
{
notethat ("PTR2op: pregs = (pregs + pregs) << 2\n");
$$ = PTR2OP (&$1, &$6, 7);
}
else
return yyerror ("Bad shift value");
}
else
return yyerror ("Register mismatch");
}
/* COMP3 CCFLAG. */
| REG ASSIGN REG BAR REG
{
if (IS_DREG ($1) && IS_DREG ($3) && IS_DREG ($5))
{
notethat ("COMP3op: dregs = dregs | dregs\n");
$$ = COMP3OP (&$1, &$3, &$5, 3);
}
else
return yyerror ("Dregs expected");
}
| REG ASSIGN REG CARET REG
{
if (IS_DREG ($1) && IS_DREG ($3) && IS_DREG ($5))
{
notethat ("COMP3op: dregs = dregs ^ dregs\n");
$$ = COMP3OP (&$1, &$3, &$5, 4);
}
else
return yyerror ("Dregs expected");
}
| REG ASSIGN REG PLUS LPAREN REG LESS_LESS expr RPAREN
{
if (IS_PREG ($1) && IS_PREG ($3) && IS_PREG ($6))
{
if (EXPR_VALUE ($8) == 1)
{
notethat ("COMP3op: pregs = pregs + (pregs << 1)\n");
$$ = COMP3OP (&$1, &$3, &$6, 6);
}
else if (EXPR_VALUE ($8) == 2)
{
notethat ("COMP3op: pregs = pregs + (pregs << 2)\n");
$$ = COMP3OP (&$1, &$3, &$6, 7);
}
else
return yyerror ("Bad shift value");
}
else
return yyerror ("Dregs expected");
}
| CCREG ASSIGN REG_A _ASSIGN_ASSIGN REG_A
{
if (!REG_SAME ($3, $5))
{
notethat ("CCflag: CC = A0 == A1\n");
$$ = CCFLAG (0, 0, 5, 0, 0);
}
else
return yyerror ("CC register expected");
}
| CCREG ASSIGN REG_A LESS_THAN REG_A
{
if (!REG_SAME ($3, $5))
{
notethat ("CCflag: CC = A0 < A1\n");
$$ = CCFLAG (0, 0, 6, 0, 0);
}
else
return yyerror ("Register mismatch");
}
| CCREG ASSIGN REG LESS_THAN REG iu_or_nothing
{
if (REG_CLASS($3) == REG_CLASS($5))
{
notethat ("CCflag: CC = dpregs < dpregs\n");
$$ = CCFLAG (&$3, $5.regno & CODE_MASK, $6.r0, 0, IS_PREG ($3) ? 1 : 0);
}
else
return yyerror ("Compare only of same register class");
}
| CCREG ASSIGN REG LESS_THAN expr iu_or_nothing
{
if (($6.r0 == 1 && IS_IMM ($5, 3))
|| ($6.r0 == 3 && IS_UIMM ($5, 3)))
{
notethat ("CCflag: CC = dpregs < (u)imm3\n");
$$ = CCFLAG (&$3, imm3 ($5), $6.r0, 1, IS_PREG ($3) ? 1 : 0);
}
else
return yyerror ("Bad constant value");
}
| CCREG ASSIGN REG _ASSIGN_ASSIGN REG
{
if (REG_CLASS($3) == REG_CLASS($5))
{
notethat ("CCflag: CC = dpregs == dpregs\n");
$$ = CCFLAG (&$3, $5.regno & CODE_MASK, 0, 0, IS_PREG ($3) ? 1 : 0);
}
}
| CCREG ASSIGN REG _ASSIGN_ASSIGN expr
{
if (IS_IMM ($5, 3))
{
notethat ("CCflag: CC = dpregs == imm3\n");
$$ = CCFLAG (&$3, imm3 ($5), 0, 1, IS_PREG ($3) ? 1 : 0);
}
else
return yyerror ("Bad constant range");
}
| CCREG ASSIGN REG_A _LESS_THAN_ASSIGN REG_A
{
if (!REG_SAME ($3, $5))
{
notethat ("CCflag: CC = A0 <= A1\n");
$$ = CCFLAG (0, 0, 7, 0, 0);
}
else
return yyerror ("CC register expected");
}
| CCREG ASSIGN REG _LESS_THAN_ASSIGN REG iu_or_nothing
{
if (REG_CLASS($3) == REG_CLASS($5))
{
notethat ("CCflag: CC = pregs <= pregs (..)\n");
$$ = CCFLAG (&$3, $5.regno & CODE_MASK,
1 + $6.r0, 0, IS_PREG ($3) ? 1 : 0);
}
else
return yyerror ("Compare only of same register class");
}
| CCREG ASSIGN REG _LESS_THAN_ASSIGN expr iu_or_nothing
{
if (($6.r0 == 1 && IS_IMM ($5, 3))
|| ($6.r0 == 3 && IS_UIMM ($5, 3)))
{
if (IS_DREG ($3))
{
notethat ("CCflag: CC = dregs <= (u)imm3\n");
/* x y opc I G */
$$ = CCFLAG (&$3, imm3 ($5), 1 + $6.r0, 1, 0);
}
else if (IS_PREG ($3))
{
notethat ("CCflag: CC = pregs <= (u)imm3\n");
/* x y opc I G */
$$ = CCFLAG (&$3, imm3 ($5), 1 + $6.r0, 1, 1);
}
else
return yyerror ("Dreg or Preg expected");
}
else
return yyerror ("Bad constant value");
}
| REG ASSIGN REG AMPERSAND REG
{
if (IS_DREG ($1) && IS_DREG ($3) && IS_DREG ($5))
{
notethat ("COMP3op: dregs = dregs & dregs\n");
$$ = COMP3OP (&$1, &$3, &$5, 2);
}
else
return yyerror ("Dregs expected");
}
| ccstat
{
notethat ("CC2stat operation\n");
$$ = bfin_gen_cc2stat ($1.r0, $1.x0, $1.s0);
}
| REG ASSIGN REG
{
if (IS_ALLREG ($1) && IS_ALLREG ($3))
{
notethat ("REGMV: allregs = allregs\n");
$$ = bfin_gen_regmv (&$3, &$1);
}
else
return yyerror ("Register mismatch");
}
| CCREG ASSIGN REG
{
if (IS_DREG ($3))
{
notethat ("CC2dreg: CC = dregs\n");
$$ = bfin_gen_cc2dreg (1, &$3);
}
else
return yyerror ("Register mismatch");
}
| REG ASSIGN CCREG
{
if (IS_DREG ($1))
{
notethat ("CC2dreg: dregs = CC\n");
$$ = bfin_gen_cc2dreg (0, &$1);
}
else
return yyerror ("Register mismatch");
}
| CCREG _ASSIGN_BANG CCREG
{
notethat ("CC2dreg: CC =! CC\n");
$$ = bfin_gen_cc2dreg (3, 0);
}
/* DSPMULT. */
| HALF_REG ASSIGN multiply_halfregs opt_mode
{
notethat ("dsp32mult: dregs_half = multiply_halfregs (opt_mode)\n");
if (!IS_H ($1) && $4.MM)
return yyerror ("(M) not allowed with MAC0");
if (IS_H ($1))
{
$$ = DSP32MULT (0, $4.MM, $4.mod, 1, 0,
IS_H ($3.s0), IS_H ($3.s1), 0, 0,
&$1, 0, &$3.s0, &$3.s1, 0);
}
else
{
$$ = DSP32MULT (0, 0, $4.mod, 0, 0,
0, 0, IS_H ($3.s0), IS_H ($3.s1),
&$1, 0, &$3.s0, &$3.s1, 1);
}
}
| REG ASSIGN multiply_halfregs opt_mode
{
/* Odd registers can use (M). */
if (!IS_DREG ($1))
return yyerror ("Dreg expected");
if (IS_EVEN ($1) && $4.MM)
return yyerror ("(M) not allowed with MAC0");
if (!IS_EVEN ($1))
{
notethat ("dsp32mult: dregs = multiply_halfregs (opt_mode)\n");
$$ = DSP32MULT (0, $4.MM, $4.mod, 1, 1,
IS_H ($3.s0), IS_H ($3.s1), 0, 0,
&$1, 0, &$3.s0, &$3.s1, 0);
}
else
{
notethat ("dsp32mult: dregs = multiply_halfregs opt_mode\n");
$$ = DSP32MULT (0, 0, $4.mod, 0, 1,
0, 0, IS_H ($3.s0), IS_H ($3.s1),
&$1, 0, &$3.s0, &$3.s1, 1);
}
}
| HALF_REG ASSIGN multiply_halfregs opt_mode COMMA
HALF_REG ASSIGN multiply_halfregs opt_mode
{
if (!IS_DREG ($1) || !IS_DREG ($6))
return yyerror ("Dregs expected");
if (!IS_HCOMPL($1, $6))
return yyerror ("Dest registers mismatch");
if (check_multiply_halfregs (&$3, &$8) < 0)
return -1;
if ((!IS_H ($1) && $4.MM)
|| (!IS_H ($6) && $9.MM))
return yyerror ("(M) not allowed with MAC0");
notethat ("dsp32mult: dregs_hi = multiply_halfregs mxd_mod, "
"dregs_lo = multiply_halfregs opt_mode\n");
if (IS_H ($1))
$$ = DSP32MULT (0, $4.MM, $9.mod, 1, 0,
IS_H ($3.s0), IS_H ($3.s1), IS_H ($8.s0), IS_H ($8.s1),
&$1, 0, &$3.s0, &$3.s1, 1);
else
$$ = DSP32MULT (0, $9.MM, $9.mod, 1, 0,
IS_H ($8.s0), IS_H ($8.s1), IS_H ($3.s0), IS_H ($3.s1),
&$1, 0, &$3.s0, &$3.s1, 1);
}
| REG ASSIGN multiply_halfregs opt_mode COMMA REG ASSIGN multiply_halfregs opt_mode
{
if (!IS_DREG ($1) || !IS_DREG ($6))
return yyerror ("Dregs expected");
if ((IS_EVEN ($1) && $6.regno - $1.regno != 1)
|| (IS_EVEN ($6) && $1.regno - $6.regno != 1))
return yyerror ("Dest registers mismatch");
if (check_multiply_halfregs (&$3, &$8) < 0)
return -1;
if ((IS_EVEN ($1) && $4.MM)
|| (IS_EVEN ($6) && $9.MM))
return yyerror ("(M) not allowed with MAC0");
notethat ("dsp32mult: dregs = multiply_halfregs mxd_mod, "
"dregs = multiply_halfregs opt_mode\n");
if (IS_EVEN ($1))
$$ = DSP32MULT (0, $9.MM, $9.mod, 1, 1,
IS_H ($8.s0), IS_H ($8.s1), IS_H ($3.s0), IS_H ($3.s1),
&$1, 0, &$3.s0, &$3.s1, 1);
else
$$ = DSP32MULT (0, $4.MM, $9.mod, 1, 1,
IS_H ($3.s0), IS_H ($3.s1), IS_H ($8.s0), IS_H ($8.s1),
&$1, 0, &$3.s0, &$3.s1, 1);
}
/* SHIFTs. */
| a_assign ASHIFT REG_A BY HALF_REG
{
if (!REG_SAME ($1, $3))
return yyerror ("Aregs must be same");
if (IS_DREG ($5) && !IS_H ($5))
{
notethat ("dsp32shift: A0 = ASHIFT A0 BY dregs_lo\n");
$$ = DSP32SHIFT (3, 0, &$5, 0, 0, IS_A1 ($1));
}
else
return yyerror ("Dregs expected");
}
| HALF_REG ASSIGN ASHIFT HALF_REG BY HALF_REG smod
{
if (IS_DREG ($6) && !IS_H ($6))
{
notethat ("dsp32shift: dregs_half = ASHIFT dregs_half BY dregs_lo\n");
$$ = DSP32SHIFT (0, &$1, &$6, &$4, $7.s0, HL2 ($1, $4));
}
else
return yyerror ("Dregs expected");
}
| a_assign REG_A LESS_LESS expr
{
if (!REG_SAME ($1, $2))
return yyerror ("Aregs must be same");
if (IS_UIMM ($4, 5))
{
notethat ("dsp32shiftimm: A0 = A0 << uimm5\n");
$$ = DSP32SHIFTIMM (3, 0, imm5 ($4), 0, 0, IS_A1 ($1));
}
else
return yyerror ("Bad shift value");
}
| REG ASSIGN REG LESS_LESS expr vsmod
{
if (IS_DREG ($1) && IS_DREG ($3) && IS_UIMM ($5, 5))
{
if ($6.r0)
{
/* Vector? */
notethat ("dsp32shiftimm: dregs = dregs << expr (V, .)\n");
$$ = DSP32SHIFTIMM (1, &$1, imm4 ($5), &$3, $6.s0 ? 1 : 2, 0);
}
else
{
notethat ("dsp32shiftimm: dregs = dregs << uimm5 (.)\n");
$$ = DSP32SHIFTIMM (2, &$1, imm6 ($5), &$3, $6.s0 ? 1 : 2, 0);
}
}
else if ($6.s0 == 0 && IS_PREG ($1) && IS_PREG ($3))
{
if (EXPR_VALUE ($5) == 2)
{
notethat ("PTR2op: pregs = pregs << 2\n");
$$ = PTR2OP (&$1, &$3, 1);
}
else if (EXPR_VALUE ($5) == 1)
{
notethat ("COMP3op: pregs = pregs << 1\n");
$$ = COMP3OP (&$1, &$3, &$3, 5);
}
else
return yyerror ("Bad shift value");
}
else
return yyerror ("Bad shift value or register");
}
| HALF_REG ASSIGN HALF_REG LESS_LESS expr
{
if (IS_UIMM ($5, 4))
{
notethat ("dsp32shiftimm: dregs_half = dregs_half << uimm4\n");
$$ = DSP32SHIFTIMM (0x0, &$1, imm5 ($5), &$3, 2, HL2 ($1, $3));
}
else
return yyerror ("Bad shift value");
}
| HALF_REG ASSIGN HALF_REG LESS_LESS expr smod
{
if (IS_UIMM ($5, 4))
{
notethat ("dsp32shiftimm: dregs_half = dregs_half << uimm4\n");
$$ = DSP32SHIFTIMM (0x0, &$1, imm5 ($5), &$3, $6.s0, HL2 ($1, $3));
}
else
return yyerror ("Bad shift value");
}
| REG ASSIGN ASHIFT REG BY HALF_REG vsmod
{
int op;
if (IS_DREG ($1) && IS_DREG ($4) && IS_DREG ($6) && !IS_H ($6))
{
if ($7.r0)
{
op = 1;
notethat ("dsp32shift: dregs = ASHIFT dregs BY "
"dregs_lo (V, .)\n");
}
else
{
op = 2;
notethat ("dsp32shift: dregs = ASHIFT dregs BY dregs_lo (.)\n");
}
$$ = DSP32SHIFT (op, &$1, &$6, &$4, $7.s0, 0);
}
else
return yyerror ("Dregs expected");
}
/* EXPADJ. */
| HALF_REG ASSIGN EXPADJ LPAREN REG COMMA HALF_REG RPAREN vmod
{
if (IS_DREG_L ($1) && IS_DREG_L ($5) && IS_DREG_L ($7))
{
notethat ("dsp32shift: dregs_lo = EXPADJ (dregs , dregs_lo )\n");
$$ = DSP32SHIFT (7, &$1, &$7, &$5, $9.r0, 0);
}
else
return yyerror ("Bad shift value or register");
}
| HALF_REG ASSIGN EXPADJ LPAREN HALF_REG COMMA HALF_REG RPAREN
{
if (IS_DREG_L ($1) && IS_DREG_L ($5) && IS_DREG_L ($7))
{
notethat ("dsp32shift: dregs_lo = EXPADJ (dregs_lo, dregs_lo)\n");
$$ = DSP32SHIFT (7, &$1, &$7, &$5, 2, 0);
}
else if (IS_DREG_L ($1) && IS_DREG_H ($5) && IS_DREG_L ($7))
{
notethat ("dsp32shift: dregs_lo = EXPADJ (dregs_hi, dregs_lo)\n");
$$ = DSP32SHIFT (7, &$1, &$7, &$5, 3, 0);
}
else
return yyerror ("Bad shift value or register");
}
/* DEPOSIT. */
| REG ASSIGN DEPOSIT LPAREN REG COMMA REG RPAREN
{
if (IS_DREG ($1) && IS_DREG ($5) && IS_DREG ($7))
{
notethat ("dsp32shift: dregs = DEPOSIT (dregs , dregs )\n");
$$ = DSP32SHIFT (10, &$1, &$7, &$5, 2, 0);
}
else
return yyerror ("Register mismatch");
}
| REG ASSIGN DEPOSIT LPAREN REG COMMA REG RPAREN LPAREN X RPAREN
{
if (IS_DREG ($1) && IS_DREG ($5) && IS_DREG ($7))
{
notethat ("dsp32shift: dregs = DEPOSIT (dregs , dregs ) (X)\n");
$$ = DSP32SHIFT (10, &$1, &$7, &$5, 3, 0);
}
else
return yyerror ("Register mismatch");
}
| REG ASSIGN EXTRACT LPAREN REG COMMA HALF_REG RPAREN xpmod
{
if (IS_DREG ($1) && IS_DREG ($5) && IS_DREG_L ($7))
{
notethat ("dsp32shift: dregs = EXTRACT (dregs, dregs_lo ) (.)\n");
$$ = DSP32SHIFT (10, &$1, &$7, &$5, $9.r0, 0);
}
else
return yyerror ("Register mismatch");
}
| a_assign REG_A _GREATER_GREATER_GREATER expr
{
if (!REG_SAME ($1, $2))
return yyerror ("Aregs must be same");
if (IS_UIMM ($4, 5))
{
notethat ("dsp32shiftimm: Ax = Ax >>> uimm5\n");
$$ = DSP32SHIFTIMM (3, 0, -imm6 ($4), 0, 0, IS_A1 ($1));
}
else
return yyerror ("Shift value range error");
}
| a_assign LSHIFT REG_A BY HALF_REG
{
if (REG_SAME ($1, $3) && IS_DREG_L ($5))
{
notethat ("dsp32shift: Ax = LSHIFT Ax BY dregs_lo\n");
$$ = DSP32SHIFT (3, 0, &$5, 0, 1, IS_A1 ($1));
}
else
return yyerror ("Register mismatch");
}
| HALF_REG ASSIGN LSHIFT HALF_REG BY HALF_REG
{
if (IS_DREG ($1) && IS_DREG ($4) && IS_DREG_L ($6))
{
notethat ("dsp32shift: dregs_lo = LSHIFT dregs_hi BY dregs_lo\n");
$$ = DSP32SHIFT (0, &$1, &$6, &$4, 2, HL2 ($1, $4));
}
else
return yyerror ("Register mismatch");
}
| REG ASSIGN LSHIFT REG BY HALF_REG vmod
{
if (IS_DREG ($1) && IS_DREG ($4) && IS_DREG_L ($6))
{
notethat ("dsp32shift: dregs = LSHIFT dregs BY dregs_lo (V )\n");
$$ = DSP32SHIFT ($7.r0 ? 1: 2, &$1, &$6, &$4, 2, 0);
}
else
return yyerror ("Register mismatch");
}
| REG ASSIGN SHIFT REG BY HALF_REG
{
if (IS_DREG ($1) && IS_DREG ($4) && IS_DREG_L ($6))
{
notethat ("dsp32shift: dregs = SHIFT dregs BY dregs_lo\n");
$$ = DSP32SHIFT (2, &$1, &$6, &$4, 2, 0);
}
else
return yyerror ("Register mismatch");
}
| a_assign REG_A GREATER_GREATER expr
{
if (REG_SAME ($1, $2) && IS_IMM ($4, 6) >= 0)
{
notethat ("dsp32shiftimm: Ax = Ax >> imm6\n");
$$ = DSP32SHIFTIMM (3, 0, -imm6 ($4), 0, 1, IS_A1 ($1));
}
else
return yyerror ("Accu register expected");
}
| REG ASSIGN REG GREATER_GREATER expr vmod
{
if ($6.r0 == 1)
{
if (IS_DREG ($1) && IS_DREG ($3) && IS_UIMM ($5, 5))
{
notethat ("dsp32shiftimm: dregs = dregs >> uimm5 (V)\n");
$$ = DSP32SHIFTIMM (1, &$1, -uimm5 ($5), &$3, 2, 0);
}
else
return yyerror ("Register mismatch");
}
else
{
if (IS_DREG ($1) && IS_DREG ($3) && IS_UIMM ($5, 5))
{
notethat ("dsp32shiftimm: dregs = dregs >> uimm5\n");
$$ = DSP32SHIFTIMM (2, &$1, -imm6 ($5), &$3, 2, 0);
}
else if (IS_PREG ($1) && IS_PREG ($3) && EXPR_VALUE ($5) == 2)
{
notethat ("PTR2op: pregs = pregs >> 2\n");
$$ = PTR2OP (&$1, &$3, 3);
}
else if (IS_PREG ($1) && IS_PREG ($3) && EXPR_VALUE ($5) == 1)
{
notethat ("PTR2op: pregs = pregs >> 1\n");
$$ = PTR2OP (&$1, &$3, 4);
}
else
return yyerror ("Register mismatch");
}
}
| HALF_REG ASSIGN HALF_REG GREATER_GREATER expr
{
if (IS_UIMM ($5, 5))
{
notethat ("dsp32shiftimm: dregs_half = dregs_half >> uimm5\n");
$$ = DSP32SHIFTIMM (0, &$1, -uimm5 ($5), &$3, 2, HL2 ($1, $3));
}
else
return yyerror ("Register mismatch");
}
| HALF_REG ASSIGN HALF_REG _GREATER_GREATER_GREATER expr smod
{
if (IS_UIMM ($5, 5))
{
notethat ("dsp32shiftimm: dregs_half = dregs_half >>> uimm5\n");
$$ = DSP32SHIFTIMM (0, &$1, -uimm5 ($5), &$3,
$6.s0, HL2 ($1, $3));
}
else
return yyerror ("Register or modifier mismatch");
}
| REG ASSIGN REG _GREATER_GREATER_GREATER expr vsmod
{
if (IS_DREG ($1) && IS_DREG ($3) && IS_UIMM ($5, 5))
{
if ($6.r0)
{
/* Vector? */
notethat ("dsp32shiftimm: dregs = dregs >>> uimm5 (V, .)\n");
$$ = DSP32SHIFTIMM (1, &$1, -uimm5 ($5), &$3, $6.s0, 0);
}
else
{
notethat ("dsp32shiftimm: dregs = dregs >>> uimm5 (.)\n");
$$ = DSP32SHIFTIMM (2, &$1, -uimm5 ($5), &$3, $6.s0, 0);
}
}
else
return yyerror ("Register mismatch");
}
| HALF_REG ASSIGN ONES REG
{
if (IS_DREG_L ($1) && IS_DREG ($4))
{
notethat ("dsp32shift: dregs_lo = ONES dregs\n");
$$ = DSP32SHIFT (6, &$1, 0, &$4, 3, 0);
}
else
return yyerror ("Register mismatch");
}
| REG ASSIGN PACK LPAREN HALF_REG COMMA HALF_REG RPAREN
{
if (IS_DREG ($1) && IS_DREG ($5) && IS_DREG ($7))
{
notethat ("dsp32shift: dregs = PACK (dregs_hi , dregs_hi )\n");
$$ = DSP32SHIFT (4, &$1, &$7, &$5, HL2 ($5, $7), 0);
}
else
return yyerror ("Register mismatch");
}
| HALF_REG ASSIGN CCREG ASSIGN BXORSHIFT LPAREN REG_A COMMA REG RPAREN
{
if (IS_DREG ($1)
&& $7.regno == REG_A0
&& IS_DREG ($9) && !IS_H ($1) && !IS_A1 ($7))
{
notethat ("dsp32shift: dregs_lo = CC = BXORSHIFT (A0 , dregs )\n");
$$ = DSP32SHIFT (11, &$1, &$9, 0, 0, 0);
}
else
return yyerror ("Register mismatch");
}
| HALF_REG ASSIGN CCREG ASSIGN BXOR LPAREN REG_A COMMA REG RPAREN
{
if (IS_DREG ($1)
&& $7.regno == REG_A0
&& IS_DREG ($9) && !IS_H ($1) && !IS_A1 ($7))
{
notethat ("dsp32shift: dregs_lo = CC = BXOR (A0 , dregs)\n");
$$ = DSP32SHIFT (11, &$1, &$9, 0, 1, 0);
}
else
return yyerror ("Register mismatch");
}
| HALF_REG ASSIGN CCREG ASSIGN BXOR LPAREN REG_A COMMA REG_A COMMA CCREG RPAREN
{
if (IS_DREG ($1) && !IS_H ($1) && !REG_SAME ($7, $9))
{
notethat ("dsp32shift: dregs_lo = CC = BXOR (A0 , A1 , CC)\n");
$$ = DSP32SHIFT (12, &$1, 0, 0, 1, 0);
}
else
return yyerror ("Register mismatch");
}
| a_assign ROT REG_A BY HALF_REG
{
if (REG_SAME ($1, $3) && IS_DREG_L ($5))
{
notethat ("dsp32shift: Ax = ROT Ax BY dregs_lo\n");
$$ = DSP32SHIFT (3, 0, &$5, 0, 2, IS_A1 ($1));
}
else
return yyerror ("Register mismatch");
}
| REG ASSIGN ROT REG BY HALF_REG
{
if (IS_DREG ($1) && IS_DREG ($4) && IS_DREG_L ($6))
{
notethat ("dsp32shift: dregs = ROT dregs BY dregs_lo\n");
$$ = DSP32SHIFT (2, &$1, &$6, &$4, 3, 0);
}
else
return yyerror ("Register mismatch");
}
| a_assign ROT REG_A BY expr
{
if (IS_IMM ($5, 6))
{
notethat ("dsp32shiftimm: An = ROT An BY imm6\n");
$$ = DSP32SHIFTIMM (3, 0, imm6 ($5), 0, 2, IS_A1 ($1));
}
else
return yyerror ("Register mismatch");
}
| REG ASSIGN ROT REG BY expr
{
if (IS_DREG ($1) && IS_DREG ($4) && IS_IMM ($6, 6))
{
$$ = DSP32SHIFTIMM (2, &$1, imm6 ($6), &$4, 3, IS_A1 ($1));
}
else
return yyerror ("Register mismatch");
}
| HALF_REG ASSIGN SIGNBITS REG_A
{
if (IS_DREG_L ($1))
{
notethat ("dsp32shift: dregs_lo = SIGNBITS An\n");
$$ = DSP32SHIFT (6, &$1, 0, 0, IS_A1 ($4), 0);
}
else
return yyerror ("Register mismatch");
}
| HALF_REG ASSIGN SIGNBITS REG
{
if (IS_DREG_L ($1) && IS_DREG ($4))
{
notethat ("dsp32shift: dregs_lo = SIGNBITS dregs\n");
$$ = DSP32SHIFT (5, &$1, 0, &$4, 0, 0);
}
else
return yyerror ("Register mismatch");
}
| HALF_REG ASSIGN SIGNBITS HALF_REG
{
if (IS_DREG_L ($1))
{
notethat ("dsp32shift: dregs_lo = SIGNBITS dregs_lo\n");
$$ = DSP32SHIFT (5, &$1, 0, &$4, 1 + IS_H ($4), 0);
}
else
return yyerror ("Register mismatch");
}
/* The ASR bit is just inverted here. */
| HALF_REG ASSIGN VIT_MAX LPAREN REG RPAREN asr_asl
{
if (IS_DREG_L ($1) && IS_DREG ($5))
{
notethat ("dsp32shift: dregs_lo = VIT_MAX (dregs) (..)\n");
$$ = DSP32SHIFT (9, &$1, 0, &$5, ($7.r0 ? 0 : 1), 0);
}
else
return yyerror ("Register mismatch");
}
| REG ASSIGN VIT_MAX LPAREN REG COMMA REG RPAREN asr_asl
{
if (IS_DREG ($1) && IS_DREG ($5) && IS_DREG ($7))
{
notethat ("dsp32shift: dregs = VIT_MAX (dregs, dregs) (ASR)\n");
$$ = DSP32SHIFT (9, &$1, &$7, &$5, 2 | ($9.r0 ? 0 : 1), 0);
}
else
return yyerror ("Register mismatch");
}
| BITMUX LPAREN REG COMMA REG COMMA REG_A RPAREN asr_asl
{
if (IS_DREG ($3) && IS_DREG ($5) && !IS_A1 ($7))
{
notethat ("dsp32shift: BITMUX (dregs , dregs , A0) (ASR)\n");
$$ = DSP32SHIFT (8, 0, &$3, &$5, $9.r0, 0);
}
else
return yyerror ("Register mismatch");
}
| a_assign BXORSHIFT LPAREN REG_A COMMA REG_A COMMA CCREG RPAREN
{
if (!IS_A1 ($1) && !IS_A1 ($4) && IS_A1 ($6))
{
notethat ("dsp32shift: A0 = BXORSHIFT (A0 , A1 , CC )\n");
$$ = DSP32SHIFT (12, 0, 0, 0, 0, 0);
}
else
return yyerror ("Dregs expected");
}
/* LOGI2op: BITCLR (dregs, uimm5). */
| BITCLR LPAREN REG COMMA expr RPAREN
{
if (IS_DREG ($3) && IS_UIMM ($5, 5))
{
notethat ("LOGI2op: BITCLR (dregs , uimm5 )\n");
$$ = LOGI2OP ($3, uimm5 ($5), 4);
}
else
return yyerror ("Register mismatch");
}
/* LOGI2op: BITSET (dregs, uimm5). */
| BITSET LPAREN REG COMMA expr RPAREN
{
if (IS_DREG ($3) && IS_UIMM ($5, 5))
{
notethat ("LOGI2op: BITCLR (dregs , uimm5 )\n");
$$ = LOGI2OP ($3, uimm5 ($5), 2);
}
else
return yyerror ("Register mismatch");
}
/* LOGI2op: BITTGL (dregs, uimm5). */
| BITTGL LPAREN REG COMMA expr RPAREN
{
if (IS_DREG ($3) && IS_UIMM ($5, 5))
{
notethat ("LOGI2op: BITCLR (dregs , uimm5 )\n");
$$ = LOGI2OP ($3, uimm5 ($5), 3);
}
else
return yyerror ("Register mismatch");
}
| CCREG _ASSIGN_BANG BITTST LPAREN REG COMMA expr RPAREN
{
if (IS_DREG ($5) && IS_UIMM ($7, 5))
{
notethat ("LOGI2op: CC =! BITTST (dregs , uimm5 )\n");
$$ = LOGI2OP ($5, uimm5 ($7), 0);
}
else
return yyerror ("Register mismatch or value error");
}
| CCREG ASSIGN BITTST LPAREN REG COMMA expr RPAREN
{
if (IS_DREG ($5) && IS_UIMM ($7, 5))
{
notethat ("LOGI2op: CC = BITTST (dregs , uimm5 )\n");
$$ = LOGI2OP ($5, uimm5 ($7), 1);
}
else
return yyerror ("Register mismatch or value error");
}
| IF BANG CCREG REG ASSIGN REG
{
if ((IS_DREG ($4) || IS_PREG ($4))
&& (IS_DREG ($6) || IS_PREG ($6)))
{
notethat ("ccMV: IF ! CC gregs = gregs\n");
$$ = CCMV (&$6, &$4, 0);
}
else
return yyerror ("Register mismatch");
}
| IF CCREG REG ASSIGN REG
{
if ((IS_DREG ($5) || IS_PREG ($5))
&& (IS_DREG ($3) || IS_PREG ($3)))
{
notethat ("ccMV: IF CC gregs = gregs\n");
$$ = CCMV (&$5, &$3, 1);
}
else
return yyerror ("Register mismatch");
}
| IF BANG CCREG JUMP expr
{
if (IS_PCREL10 ($5))
{
notethat ("BRCC: IF !CC JUMP pcrel11m2\n");
$$ = BRCC (0, 0, $5);
}
else
return yyerror ("Bad jump offset");
}
| IF BANG CCREG JUMP expr LPAREN BP RPAREN
{
if (IS_PCREL10 ($5))
{
notethat ("BRCC: IF !CC JUMP pcrel11m2\n");
$$ = BRCC (0, 1, $5);
}
else
return yyerror ("Bad jump offset");
}
| IF CCREG JUMP expr
{
if (IS_PCREL10 ($4))
{
notethat ("BRCC: IF CC JUMP pcrel11m2\n");
$$ = BRCC (1, 0, $4);
}
else
return yyerror ("Bad jump offset");
}
| IF CCREG JUMP expr LPAREN BP RPAREN
{
if (IS_PCREL10 ($4))
{
notethat ("BRCC: IF !CC JUMP pcrel11m2\n");
$$ = BRCC (1, 1, $4);
}
else
return yyerror ("Bad jump offset");
}
| NOP
{
notethat ("ProgCtrl: NOP\n");
$$ = PROGCTRL (0, 0);
}
| RTS
{
notethat ("ProgCtrl: RTS\n");
$$ = PROGCTRL (1, 0);
}
| RTI
{
notethat ("ProgCtrl: RTI\n");
$$ = PROGCTRL (1, 1);
}
| RTX
{
notethat ("ProgCtrl: RTX\n");
$$ = PROGCTRL (1, 2);
}
| RTN
{
notethat ("ProgCtrl: RTN\n");
$$ = PROGCTRL (1, 3);
}
| RTE
{
notethat ("ProgCtrl: RTE\n");
$$ = PROGCTRL (1, 4);
}
| IDLE
{
notethat ("ProgCtrl: IDLE\n");
$$ = PROGCTRL (2, 0);
}
| CSYNC
{
notethat ("ProgCtrl: CSYNC\n");
$$ = PROGCTRL (2, 3);
}
| SSYNC
{
notethat ("ProgCtrl: SSYNC\n");
$$ = PROGCTRL (2, 4);
}
| EMUEXCPT
{
notethat ("ProgCtrl: EMUEXCPT\n");
$$ = PROGCTRL (2, 5);
}
| CLI REG
{
if (IS_DREG ($2))
{
notethat ("ProgCtrl: CLI dregs\n");
$$ = PROGCTRL (3, $2.regno & CODE_MASK);
}
else
return yyerror ("Dreg expected for CLI");
}
| STI REG
{
if (IS_DREG ($2))
{
notethat ("ProgCtrl: STI dregs\n");
$$ = PROGCTRL (4, $2.regno & CODE_MASK);
}
else
return yyerror ("Dreg expected for STI");
}
| JUMP LPAREN REG RPAREN
{
if (IS_PREG ($3))
{
notethat ("ProgCtrl: JUMP (pregs )\n");
$$ = PROGCTRL (5, $3.regno & CODE_MASK);
}
else
return yyerror ("Bad register for indirect jump");
}
| CALL LPAREN REG RPAREN
{
if (IS_PREG ($3))
{
notethat ("ProgCtrl: CALL (pregs )\n");
$$ = PROGCTRL (6, $3.regno & CODE_MASK);
}
else
return yyerror ("Bad register for indirect call");
}
| CALL LPAREN PC PLUS REG RPAREN
{
if (IS_PREG ($5))
{
notethat ("ProgCtrl: CALL (PC + pregs )\n");
$$ = PROGCTRL (7, $5.regno & CODE_MASK);
}
else
return yyerror ("Bad register for indirect call");
}
| JUMP LPAREN PC PLUS REG RPAREN
{
if (IS_PREG ($5))
{
notethat ("ProgCtrl: JUMP (PC + pregs )\n");
$$ = PROGCTRL (8, $5.regno & CODE_MASK);
}
else
return yyerror ("Bad register for indirect jump");
}
| RAISE expr
{
if (IS_UIMM ($2, 4))
{
notethat ("ProgCtrl: RAISE uimm4\n");
$$ = PROGCTRL (9, uimm4 ($2));
}
else
return yyerror ("Bad value for RAISE");
}
| EXCPT expr
{
notethat ("ProgCtrl: EMUEXCPT\n");
$$ = PROGCTRL (10, uimm4 ($2));
}
| TESTSET LPAREN REG RPAREN
{
if (IS_PREG ($3))
{
notethat ("ProgCtrl: TESTSET (pregs )\n");
$$ = PROGCTRL (11, $3.regno & CODE_MASK);
}
else
return yyerror ("Preg expected");
}
| JUMP expr
{
if (IS_PCREL12 ($2))
{
notethat ("UJUMP: JUMP pcrel12\n");
$$ = UJUMP ($2);
}
else
return yyerror ("Bad value for relative jump");
}
| JUMP_DOT_S expr
{
if (IS_PCREL12 ($2))
{
notethat ("UJUMP: JUMP_DOT_S pcrel12\n");
$$ = UJUMP($2);
}
else
return yyerror ("Bad value for relative jump");
}
| JUMP_DOT_L expr
{
if (IS_PCREL24 ($2))
{
notethat ("CALLa: jump.l pcrel24\n");
$$ = CALLA ($2, 0);
}
else
return yyerror ("Bad value for long jump");
}
| JUMP_DOT_L pltpc
{
if (IS_PCREL24 ($2))
{
notethat ("CALLa: jump.l pcrel24\n");
$$ = CALLA ($2, 2);
}
else
return yyerror ("Bad value for long jump");
}
| CALL expr
{
if (IS_PCREL24 ($2))
{
notethat ("CALLa: CALL pcrel25m2\n");
$$ = CALLA ($2, 1);
}
else
return yyerror ("Bad call address");
}
| CALL pltpc
{
if (IS_PCREL24 ($2))
{
notethat ("CALLa: CALL pcrel25m2\n");
$$ = CALLA ($2, 2);
}
else
return yyerror ("Bad call address");
}
/* ALU2ops. */
/* ALU2op: DIVQ (dregs, dregs). */
| DIVQ LPAREN REG COMMA REG RPAREN
{
if (IS_DREG ($3) && IS_DREG ($5))
$$ = ALU2OP (&$3, &$5, 8);
else
return yyerror ("Bad registers for DIVQ");
}
| DIVS LPAREN REG COMMA REG RPAREN
{
if (IS_DREG ($3) && IS_DREG ($5))
$$ = ALU2OP (&$3, &$5, 9);
else
return yyerror ("Bad registers for DIVS");
}
| REG ASSIGN MINUS REG vsmod
{
if (IS_DREG ($1) && IS_DREG ($4))
{
if ($5.r0 == 0 && $5.s0 == 0 && $5.aop == 0)
{
notethat ("ALU2op: dregs = - dregs\n");
$$ = ALU2OP (&$1, &$4, 14);
}
else if ($5.r0 == 1 && $5.s0 == 0 && $5.aop == 3)
{
notethat ("dsp32alu: dregs = - dregs (.)\n");
$$ = DSP32ALU (15, 0, 0, &$1, &$4, 0, $5.s0, 0, 3);
}
else
{
notethat ("dsp32alu: dregs = - dregs (.)\n");
$$ = DSP32ALU (7, 0, 0, &$1, &$4, 0, $5.s0, 0, 3);
}
}
else
return yyerror ("Dregs expected");
}
| REG ASSIGN TILDA REG
{
if (IS_DREG ($1) && IS_DREG ($4))
{
notethat ("ALU2op: dregs = ~dregs\n");
$$ = ALU2OP (&$1, &$4, 15);
}
else
return yyerror ("Dregs expected");
}
| REG _GREATER_GREATER_ASSIGN REG
{
if (IS_DREG ($1) && IS_DREG ($3))
{
notethat ("ALU2op: dregs >>= dregs\n");
$$ = ALU2OP (&$1, &$3, 1);
}
else
return yyerror ("Dregs expected");
}
| REG _GREATER_GREATER_ASSIGN expr
{
if (IS_DREG ($1) && IS_UIMM ($3, 5))
{
notethat ("LOGI2op: dregs >>= uimm5\n");
$$ = LOGI2OP ($1, uimm5 ($3), 6);
}
else
return yyerror ("Dregs expected or value error");
}
| REG _GREATER_GREATER_GREATER_THAN_ASSIGN REG
{
if (IS_DREG ($1) && IS_DREG ($3))
{
notethat ("ALU2op: dregs >>>= dregs\n");
$$ = ALU2OP (&$1, &$3, 0);
}
else
return yyerror ("Dregs expected");
}
| REG _LESS_LESS_ASSIGN REG
{
if (IS_DREG ($1) && IS_DREG ($3))
{
notethat ("ALU2op: dregs <<= dregs\n");
$$ = ALU2OP (&$1, &$3, 2);
}
else
return yyerror ("Dregs expected");
}
| REG _LESS_LESS_ASSIGN expr
{
if (IS_DREG ($1) && IS_UIMM ($3, 5))
{
notethat ("LOGI2op: dregs <<= uimm5\n");
$$ = LOGI2OP ($1, uimm5 ($3), 7);
}
else
return yyerror ("Dregs expected or const value error");
}
| REG _GREATER_GREATER_GREATER_THAN_ASSIGN expr
{
if (IS_DREG ($1) && IS_UIMM ($3, 5))
{
notethat ("LOGI2op: dregs >>>= uimm5\n");
$$ = LOGI2OP ($1, uimm5 ($3), 5);
}
else
return yyerror ("Dregs expected");
}
/* Cache Control. */
| FLUSH LBRACK REG RBRACK
{
notethat ("CaCTRL: FLUSH [ pregs ]\n");
if (IS_PREG ($3))
$$ = CACTRL (&$3, 0, 2);
else
return yyerror ("Bad register(s) for FLUSH");
}
| FLUSH reg_with_postinc
{
if (IS_PREG ($2))
{
notethat ("CaCTRL: FLUSH [ pregs ++ ]\n");
$$ = CACTRL (&$2, 1, 2);
}
else
return yyerror ("Bad register(s) for FLUSH");
}
| FLUSHINV LBRACK REG RBRACK
{
if (IS_PREG ($3))
{
notethat ("CaCTRL: FLUSHINV [ pregs ]\n");
$$ = CACTRL (&$3, 0, 1);
}
else
return yyerror ("Bad register(s) for FLUSH");
}
| FLUSHINV reg_with_postinc
{
if (IS_PREG ($2))
{
notethat ("CaCTRL: FLUSHINV [ pregs ++ ]\n");
$$ = CACTRL (&$2, 1, 1);
}
else
return yyerror ("Bad register(s) for FLUSH");
}
/* CaCTRL: IFLUSH [pregs]. */
| IFLUSH LBRACK REG RBRACK
{
if (IS_PREG ($3))
{
notethat ("CaCTRL: IFLUSH [ pregs ]\n");
$$ = CACTRL (&$3, 0, 3);
}
else
return yyerror ("Bad register(s) for FLUSH");
}
| IFLUSH reg_with_postinc
{
if (IS_PREG ($2))
{
notethat ("CaCTRL: IFLUSH [ pregs ++ ]\n");
$$ = CACTRL (&$2, 1, 3);
}
else
return yyerror ("Bad register(s) for FLUSH");
}
| PREFETCH LBRACK REG RBRACK
{
if (IS_PREG ($3))
{
notethat ("CaCTRL: PREFETCH [ pregs ]\n");
$$ = CACTRL (&$3, 0, 0);
}
else
return yyerror ("Bad register(s) for PREFETCH");
}
| PREFETCH reg_with_postinc
{
if (IS_PREG ($2))
{
notethat ("CaCTRL: PREFETCH [ pregs ++ ]\n");
$$ = CACTRL (&$2, 1, 0);
}
else
return yyerror ("Bad register(s) for PREFETCH");
}
/* LOAD/STORE. */
/* LDST: B [ pregs <post_op> ] = dregs. */
| B LBRACK REG post_op RBRACK ASSIGN REG
{
if (IS_PREG ($3) && IS_DREG ($7))
{
notethat ("LDST: B [ pregs <post_op> ] = dregs\n");
$$ = LDST (&$3, &$7, $4.x0, 2, 0, 1);
}
else
return yyerror ("Register mismatch");
}
/* LDSTidxI: B [ pregs + imm16 ] = dregs. */
| B LBRACK REG plus_minus expr RBRACK ASSIGN REG
{
if (IS_PREG ($3) && IS_RANGE(16, $5, $4.r0, 1) && IS_DREG ($8))
{
notethat ("LDST: B [ pregs + imm16 ] = dregs\n");
if ($4.r0)
neg_value ($5);
$$ = LDSTIDXI (&$3, &$8, 1, 2, 0, $5);
}
else
return yyerror ("Register mismatch or const size wrong");
}
/* LDSTii: W [ pregs + uimm4s2 ] = dregs. */
| W LBRACK REG plus_minus expr RBRACK ASSIGN REG
{
if (IS_PREG ($3) && IS_URANGE (4, $5, $4.r0, 2) && IS_DREG ($8))
{
notethat ("LDSTii: W [ pregs +- uimm5m2 ] = dregs\n");
$$ = LDSTII (&$3, &$8, $5, 1, 1);
}
else if (IS_PREG ($3) && IS_RANGE(16, $5, $4.r0, 2) && IS_DREG ($8))
{
notethat ("LDSTidxI: W [ pregs + imm17m2 ] = dregs\n");
if ($4.r0)
neg_value ($5);
$$ = LDSTIDXI (&$3, &$8, 1, 1, 0, $5);
}
else
return yyerror ("Bad register(s) or wrong constant size");
}
/* LDST: W [ pregs <post_op> ] = dregs. */
| W LBRACK REG post_op RBRACK ASSIGN REG
{
if (IS_PREG ($3) && IS_DREG ($7))
{
notethat ("LDST: W [ pregs <post_op> ] = dregs\n");
$$ = LDST (&$3, &$7, $4.x0, 1, 0, 1);
}
else
return yyerror ("Bad register(s) for STORE");
}
| W LBRACK REG post_op RBRACK ASSIGN HALF_REG
{
if (IS_IREG ($3))
{
notethat ("dspLDST: W [ iregs <post_op> ] = dregs_half\n");
$$ = DSPLDST (&$3, 1 + IS_H ($7), &$7, $4.x0, 1);
}
else if ($4.x0 == 2 && IS_PREG ($3) && IS_DREG ($7))
{
notethat ("LDSTpmod: W [ pregs <post_op>] = dregs_half\n");
$$ = LDSTPMOD (&$3, &$7, &$3, 1 + IS_H ($7), 1);
}
else
return yyerror ("Bad register(s) for STORE");
}
/* LDSTiiFP: [ FP - const ] = dpregs. */
| LBRACK REG plus_minus expr RBRACK ASSIGN REG
{
Expr_Node *tmp = $4;
int ispreg = IS_PREG ($7);
if (!IS_PREG ($2))
return yyerror ("Preg expected for indirect");
if (!IS_DREG ($7) && !ispreg)
return yyerror ("Bad source register for STORE");
if ($3.r0)
tmp = unary (Expr_Op_Type_NEG, tmp);
if (in_range_p (tmp, 0, 63, 3))
{
notethat ("LDSTii: dpregs = [ pregs + uimm6m4 ]\n");
$$ = LDSTII (&$2, &$7, tmp, 1, ispreg ? 3 : 0);
}
else if ($2.regno == REG_FP && in_range_p (tmp, -128, 0, 3))
{
notethat ("LDSTiiFP: dpregs = [ FP - uimm7m4 ]\n");
tmp = unary (Expr_Op_Type_NEG, tmp);
$$ = LDSTIIFP (tmp, &$7, 1);
}
else if (in_range_p (tmp, -131072, 131071, 3))
{
notethat ("LDSTidxI: [ pregs + imm18m4 ] = dpregs\n");
$$ = LDSTIDXI (&$2, &$7, 1, 0, ispreg ? 1: 0, tmp);
}
else
return yyerror ("Displacement out of range for store");
}
| REG ASSIGN W LBRACK REG plus_minus expr RBRACK xpmod
{
if (IS_DREG ($1) && IS_PREG ($5) && IS_URANGE (4, $7, $6.r0, 2))
{
notethat ("LDSTii: dregs = W [ pregs + uimm4s2 ] (.)\n");
$$ = LDSTII (&$5, &$1, $7, 0, 1 << $9.r0);
}
else if (IS_DREG ($1) && IS_PREG ($5) && IS_RANGE(16, $7, $6.r0, 2))
{
notethat ("LDSTidxI: dregs = W [ pregs + imm17m2 ] (.)\n");
if ($6.r0)
neg_value ($7);
$$ = LDSTIDXI (&$5, &$1, 0, 1, $9.r0, $7);
}
else
return yyerror ("Bad register or constant for LOAD");
}
| HALF_REG ASSIGN W LBRACK REG post_op RBRACK
{
if (IS_IREG ($5))
{
notethat ("dspLDST: dregs_half = W [ iregs ]\n");
$$ = DSPLDST(&$5, 1 + IS_H ($1), &$1, $6.x0, 0);
}
else if ($6.x0 == 2 && IS_DREG ($1) && IS_PREG ($5))
{
notethat ("LDSTpmod: dregs_half = W [ pregs ]\n");
$$ = LDSTPMOD (&$5, &$1, &$5, 1 + IS_H ($1), 0);
}
else
return yyerror ("Bad register or post_op for LOAD");
}
| REG ASSIGN W LBRACK REG post_op RBRACK xpmod
{
if (IS_DREG ($1) && IS_PREG ($5))
{
notethat ("LDST: dregs = W [ pregs <post_op> ] (.)\n");
$$ = LDST (&$5, &$1, $6.x0, 1, $8.r0, 0);
}
else
return yyerror ("Bad register for LOAD");
}
| REG ASSIGN W LBRACK REG _PLUS_PLUS REG RBRACK xpmod
{
if (IS_DREG ($1) && IS_PREG ($5) && IS_PREG ($7))
{
notethat ("LDSTpmod: dregs = W [ pregs ++ pregs ] (.)\n");
$$ = LDSTPMOD (&$5, &$1, &$7, 3, $9.r0);
}
else
return yyerror ("Bad register for LOAD");
}
| HALF_REG ASSIGN W LBRACK REG _PLUS_PLUS REG RBRACK
{
if (IS_DREG ($1) && IS_PREG ($5) && IS_PREG ($7))
{
notethat ("LDSTpmod: dregs_half = W [ pregs ++ pregs ]\n");
$$ = LDSTPMOD (&$5, &$1, &$7, 1 + IS_H ($1), 0);
}
else
return yyerror ("Bad register for LOAD");
}
| LBRACK REG post_op RBRACK ASSIGN REG
{
if (IS_IREG ($2) && IS_DREG ($6))
{
notethat ("dspLDST: [ iregs <post_op> ] = dregs\n");
$$ = DSPLDST(&$2, 0, &$6, $3.x0, 1);
}
else if (IS_PREG ($2) && IS_DREG ($6))
{
notethat ("LDST: [ pregs <post_op> ] = dregs\n");
$$ = LDST (&$2, &$6, $3.x0, 0, 0, 1);
}
else if (IS_PREG ($2) && IS_PREG ($6))
{
notethat ("LDST: [ pregs <post_op> ] = pregs\n");
$$ = LDST (&$2, &$6, $3.x0, 0, 1, 1);
}
else
return yyerror ("Bad register for STORE");
}
| LBRACK REG _PLUS_PLUS REG RBRACK ASSIGN REG
{
if (! IS_DREG ($7))
return yyerror ("Expected Dreg for last argument");
if (IS_IREG ($2) && IS_MREG ($4))
{
notethat ("dspLDST: [ iregs ++ mregs ] = dregs\n");
$$ = DSPLDST(&$2, $4.regno & CODE_MASK, &$7, 3, 1);
}
else if (IS_PREG ($2) && IS_PREG ($4))
{
notethat ("LDSTpmod: [ pregs ++ pregs ] = dregs\n");
$$ = LDSTPMOD (&$2, &$7, &$4, 0, 1);
}
else
return yyerror ("Bad register for STORE");
}
| W LBRACK REG _PLUS_PLUS REG RBRACK ASSIGN HALF_REG
{
if (!IS_DREG ($8))
return yyerror ("Expect Dreg as last argument");
if (IS_PREG ($3) && IS_PREG ($5))
{
notethat ("LDSTpmod: W [ pregs ++ pregs ] = dregs_half\n");
$$ = LDSTPMOD (&$3, &$8, &$5, 1 + IS_H ($8), 1);
}
else
return yyerror ("Bad register for STORE");
}
| REG ASSIGN B LBRACK REG plus_minus expr RBRACK xpmod
{
if (IS_DREG ($1) && IS_PREG ($5) && IS_RANGE(16, $7, $6.r0, 1))
{
notethat ("LDSTidxI: dregs = B [ pregs + imm16 ] (%c)\n",
$9.r0 ? 'X' : 'Z');
if ($6.r0)
neg_value ($7);
$$ = LDSTIDXI (&$5, &$1, 0, 2, $9.r0, $7);
}
else
return yyerror ("Bad register or value for LOAD");
}
| REG ASSIGN B LBRACK REG post_op RBRACK xpmod
{
if (IS_DREG ($1) && IS_PREG ($5))
{
notethat ("LDST: dregs = B [ pregs <post_op> ] (%c)\n",
$8.r0 ? 'X' : 'Z');
$$ = LDST (&$5, &$1, $6.x0, 2, $8.r0, 0);
}
else
return yyerror ("Bad register for LOAD");
}
| REG ASSIGN LBRACK REG _PLUS_PLUS REG RBRACK
{
if (IS_DREG ($1) && IS_IREG ($4) && IS_MREG ($6))
{
notethat ("dspLDST: dregs = [ iregs ++ mregs ]\n");
$$ = DSPLDST(&$4, $6.regno & CODE_MASK, &$1, 3, 0);
}
else if (IS_DREG ($1) && IS_PREG ($4) && IS_PREG ($6))
{
notethat ("LDSTpmod: dregs = [ pregs ++ pregs ]\n");
$$ = LDSTPMOD (&$4, &$1, &$6, 0, 0);
}
else
return yyerror ("Bad register for LOAD");
}
| REG ASSIGN LBRACK REG plus_minus got_or_expr RBRACK
{
Expr_Node *tmp = $6;
int ispreg = IS_PREG ($1);
int isgot = IS_RELOC($6);
if (!IS_PREG ($4))
return yyerror ("Preg expected for indirect");
if (!IS_DREG ($1) && !ispreg)
return yyerror ("Bad destination register for LOAD");
if ($5.r0)
tmp = unary (Expr_Op_Type_NEG, tmp);
if(isgot){
notethat ("LDSTidxI: dpregs = [ pregs + sym@got ]\n");
$$ = LDSTIDXI (&$4, &$1, 0, 0, ispreg ? 1: 0, tmp);
}
else if (in_range_p (tmp, 0, 63, 3))
{
notethat ("LDSTii: dpregs = [ pregs + uimm7m4 ]\n");
$$ = LDSTII (&$4, &$1, tmp, 0, ispreg ? 3 : 0);
}
else if ($4.regno == REG_FP && in_range_p (tmp, -128, 0, 3))
{
notethat ("LDSTiiFP: dpregs = [ FP - uimm7m4 ]\n");
tmp = unary (Expr_Op_Type_NEG, tmp);
$$ = LDSTIIFP (tmp, &$1, 0);
}
else if (in_range_p (tmp, -131072, 131071, 3))
{
notethat ("LDSTidxI: dpregs = [ pregs + imm18m4 ]\n");
$$ = LDSTIDXI (&$4, &$1, 0, 0, ispreg ? 1: 0, tmp);
}
else
return yyerror ("Displacement out of range for load");
}
| REG ASSIGN LBRACK REG post_op RBRACK
{
if (IS_DREG ($1) && IS_IREG ($4))
{
notethat ("dspLDST: dregs = [ iregs <post_op> ]\n");
$$ = DSPLDST (&$4, 0, &$1, $5.x0, 0);
}
else if (IS_DREG ($1) && IS_PREG ($4))
{
notethat ("LDST: dregs = [ pregs <post_op> ]\n");
$$ = LDST (&$4, &$1, $5.x0, 0, 0, 0);
}
else if (IS_PREG ($1) && IS_PREG ($4))
{
if (REG_SAME ($1, $4) && $5.x0 != 2)
return yyerror ("Pregs can't be same");
notethat ("LDST: pregs = [ pregs <post_op> ]\n");
$$ = LDST (&$4, &$1, $5.x0, 0, 1, 0);
}
else if ($4.regno == REG_SP && IS_ALLREG ($1) && $5.x0 == 0)
{
notethat ("PushPopReg: allregs = [ SP ++ ]\n");
$$ = PUSHPOPREG (&$1, 0);
}
else
return yyerror ("Bad register or value");
}
/* PushPopMultiple. */
| reg_with_predec ASSIGN LPAREN REG COLON expr COMMA REG COLON expr RPAREN
{
if ($1.regno != REG_SP)
yyerror ("Stack Pointer expected");
if ($4.regno == REG_R7
&& IN_RANGE ($6, 0, 7)
&& $8.regno == REG_P5
&& IN_RANGE ($10, 0, 5))
{
notethat ("PushPopMultiple: [ -- SP ] = (R7 : reglim , P5 : reglim )\n");
$$ = PUSHPOPMULTIPLE (imm5 ($6), imm5 ($10), 1, 1, 1);
}
else
return yyerror ("Bad register for PushPopMultiple");
}
| reg_with_predec ASSIGN LPAREN REG COLON expr RPAREN
{
if ($1.regno != REG_SP)
yyerror ("Stack Pointer expected");
if ($4.regno == REG_R7 && IN_RANGE ($6, 0, 7))
{
notethat ("PushPopMultiple: [ -- SP ] = (R7 : reglim )\n");
$$ = PUSHPOPMULTIPLE (imm5 ($6), 0, 1, 0, 1);
}
else if ($4.regno == REG_P5 && IN_RANGE ($6, 0, 6))
{
notethat ("PushPopMultiple: [ -- SP ] = (P5 : reglim )\n");
$$ = PUSHPOPMULTIPLE (0, imm5 ($6), 0, 1, 1);
}
else
return yyerror ("Bad register for PushPopMultiple");
}
| LPAREN REG COLON expr COMMA REG COLON expr RPAREN ASSIGN reg_with_postinc
{
if ($11.regno != REG_SP)
yyerror ("Stack Pointer expected");
if ($2.regno == REG_R7 && (IN_RANGE ($4, 0, 7))
&& $6.regno == REG_P5 && (IN_RANGE ($8, 0, 6)))
{
notethat ("PushPopMultiple: (R7 : reglim , P5 : reglim ) = [ SP ++ ]\n");
$$ = PUSHPOPMULTIPLE (imm5 ($4), imm5 ($8), 1, 1, 0);
}
else
return yyerror ("Bad register range for PushPopMultiple");
}
| LPAREN REG COLON expr RPAREN ASSIGN reg_with_postinc
{
if ($7.regno != REG_SP)
yyerror ("Stack Pointer expected");
if ($2.regno == REG_R7 && IN_RANGE ($4, 0, 7))
{
notethat ("PushPopMultiple: (R7 : reglim ) = [ SP ++ ]\n");
$$ = PUSHPOPMULTIPLE (imm5 ($4), 0, 1, 0, 0);
}
else if ($2.regno == REG_P5 && IN_RANGE ($4, 0, 6))
{
notethat ("PushPopMultiple: (P5 : reglim ) = [ SP ++ ]\n");
$$ = PUSHPOPMULTIPLE (0, imm5 ($4), 0, 1, 0);
}
else
return yyerror ("Bad register range for PushPopMultiple");
}
| reg_with_predec ASSIGN REG
{
if ($1.regno != REG_SP)
yyerror ("Stack Pointer expected");
if (IS_ALLREG ($3))
{
notethat ("PushPopReg: [ -- SP ] = allregs\n");
$$ = PUSHPOPREG (&$3, 1);
}
else
return yyerror ("Bad register for PushPopReg");
}
/* Linkage. */
| LINK expr
{
if (IS_URANGE (16, $2, 0, 4))
$$ = LINKAGE (0, uimm16s4 ($2));
else
return yyerror ("Bad constant for LINK");
}
| UNLINK
{
notethat ("linkage: UNLINK\n");
$$ = LINKAGE (1, 0);
}
/* LSETUP. */
| LSETUP LPAREN expr COMMA expr RPAREN REG
{
if (IS_PCREL4 ($3) && IS_LPPCREL10 ($5) && IS_CREG ($7))
{
notethat ("LoopSetup: LSETUP (pcrel4 , lppcrel10 ) counters\n");
$$ = LOOPSETUP ($3, &$7, 0, $5, 0);
}
else
return yyerror ("Bad register or values for LSETUP");
}
| LSETUP LPAREN expr COMMA expr RPAREN REG ASSIGN REG
{
if (IS_PCREL4 ($3) && IS_LPPCREL10 ($5)
&& IS_PREG ($9) && IS_CREG ($7))
{
notethat ("LoopSetup: LSETUP (pcrel4 , lppcrel10 ) counters = pregs\n");
$$ = LOOPSETUP ($3, &$7, 1, $5, &$9);
}
else
return yyerror ("Bad register or values for LSETUP");
}
| LSETUP LPAREN expr COMMA expr RPAREN REG ASSIGN REG GREATER_GREATER expr
{
if (IS_PCREL4 ($3) && IS_LPPCREL10 ($5)
&& IS_PREG ($9) && IS_CREG ($7)
&& EXPR_VALUE ($11) == 1)
{
notethat ("LoopSetup: LSETUP (pcrel4 , lppcrel10 ) counters = pregs >> 1\n");
$$ = LOOPSETUP ($3, &$7, 3, $5, &$9);
}
else
return yyerror ("Bad register or values for LSETUP");
}
/* LOOP. */
| LOOP expr REG
{
if (!IS_RELOC ($2))
return yyerror ("Invalid expression in loop statement");
if (!IS_CREG ($3))
return yyerror ("Invalid loop counter register");
$$ = bfin_gen_loop ($2, &$3, 0, 0);
}
| LOOP expr REG ASSIGN REG
{
if (IS_RELOC ($2) && IS_PREG ($5) && IS_CREG ($3))
{
notethat ("Loop: LOOP expr counters = pregs\n");
$$ = bfin_gen_loop ($2, &$3, 1, &$5);
}
else
return yyerror ("Bad register or values for LOOP");
}
| LOOP expr REG ASSIGN REG GREATER_GREATER expr
{
if (IS_RELOC ($2) && IS_PREG ($5) && IS_CREG ($3) && EXPR_VALUE ($7) == 1)
{
notethat ("Loop: LOOP expr counters = pregs >> 1\n");
$$ = bfin_gen_loop ($2, &$3, 3, &$5);
}
else
return yyerror ("Bad register or values for LOOP");
}
/* pseudoDEBUG. */
| DBG
{
notethat ("pseudoDEBUG: DBG\n");
$$ = bfin_gen_pseudodbg (3, 7, 0);
}
| DBG REG_A
{
notethat ("pseudoDEBUG: DBG REG_A\n");
$$ = bfin_gen_pseudodbg (3, IS_A1 ($2), 0);
}
| DBG REG
{
notethat ("pseudoDEBUG: DBG allregs\n");
$$ = bfin_gen_pseudodbg (0, $2.regno & CODE_MASK, $2.regno & CLASS_MASK);
}
| DBGCMPLX LPAREN REG RPAREN
{
if (!IS_DREG ($3))
return yyerror ("Dregs expected");
notethat ("pseudoDEBUG: DBGCMPLX (dregs )\n");
$$ = bfin_gen_pseudodbg (3, 6, $3.regno & CODE_MASK);
}
| DBGHALT
{
notethat ("psedoDEBUG: DBGHALT\n");
$$ = bfin_gen_pseudodbg (3, 5, 0);
}
| DBGA LPAREN HALF_REG COMMA expr RPAREN
{
notethat ("pseudodbg_assert: DBGA (dregs_lo , uimm16 )\n");
$$ = bfin_gen_pseudodbg_assert (IS_H ($3), &$3, uimm16 ($5));
}
| DBGAH LPAREN REG COMMA expr RPAREN
{
notethat ("pseudodbg_assert: DBGAH (dregs , uimm16 )\n");
$$ = bfin_gen_pseudodbg_assert (3, &$3, uimm16 ($5));
}
| DBGAL LPAREN REG COMMA expr RPAREN
{
notethat ("psedodbg_assert: DBGAL (dregs , uimm16 )\n");
$$ = bfin_gen_pseudodbg_assert (2, &$3, uimm16 ($5));
}
;
/* AUX RULES. */
/* Register rules. */
REG_A: REG_A_DOUBLE_ZERO
{
$$ = $1;
}
| REG_A_DOUBLE_ONE
{
$$ = $1;
}
;
/* Modifiers. */
opt_mode:
{
$$.MM = 0;
$$.mod = 0;
}
| LPAREN M COMMA MMOD RPAREN
{
$$.MM = 1;
$$.mod = $4;
}
| LPAREN MMOD COMMA M RPAREN
{
$$.MM = 1;
$$.mod = $2;
}
| LPAREN MMOD RPAREN
{
$$.MM = 0;
$$.mod = $2;
}
| LPAREN M RPAREN
{
$$.MM = 1;
$$.mod = 0;
}
;
asr_asl: LPAREN ASL RPAREN
{
$$.r0 = 1;
}
| LPAREN ASR RPAREN
{
$$.r0 = 0;
}
;
sco:
{
$$.s0 = 0;
$$.x0 = 0;
}
| S
{
$$.s0 = 1;
$$.x0 = 0;
}
| CO
{
$$.s0 = 0;
$$.x0 = 1;
}
| SCO
{
$$.s0 = 1;
$$.x0 = 1;
}
;
asr_asl_0:
ASL
{
$$.r0 = 1;
}
| ASR
{
$$.r0 = 0;
}
;
amod0:
{
$$.s0 = 0;
$$.x0 = 0;
}
| LPAREN sco RPAREN
{
$$.s0 = $2.s0;
$$.x0 = $2.x0;
}
;
amod1:
{
$$.s0 = 0;
$$.x0 = 0;
$$.aop = 0;
}
| LPAREN NS RPAREN
{
$$.s0 = 0;
$$.x0 = 0;
$$.aop = 1;
}
| LPAREN S RPAREN
{
$$.s0 = 1;
$$.x0 = 0;
$$.aop = 1;
}
;
amod2:
{
$$.r0 = 0;
$$.s0 = 0;
$$.x0 = 0;
}
| LPAREN asr_asl_0 RPAREN
{
$$.r0 = 2 + $2.r0;
$$.s0 = 0;
$$.x0 = 0;
}
| LPAREN sco RPAREN
{
$$.r0 = 0;
$$.s0 = $2.s0;
$$.x0 = $2.x0;
}
| LPAREN asr_asl_0 COMMA sco RPAREN
{
$$.r0 = 2 + $2.r0;
$$.s0 = $4.s0;
$$.x0 = $4.x0;
}
| LPAREN sco COMMA asr_asl_0 RPAREN
{
$$.r0 = 2 + $4.r0;
$$.s0 = $2.s0;
$$.x0 = $2.x0;
}
;
xpmod:
{
$$.r0 = 0;
}
| LPAREN Z RPAREN
{
$$.r0 = 0;
}
| LPAREN X RPAREN
{
$$.r0 = 1;
}
;
xpmod1:
{
$$.r0 = 0;
}
| LPAREN X RPAREN
{
$$.r0 = 0;
}
| LPAREN Z RPAREN
{
$$.r0 = 1;
}
;
vsmod:
{
$$.r0 = 0;
$$.s0 = 0;
$$.aop = 0;
}
| LPAREN NS RPAREN
{
$$.r0 = 0;
$$.s0 = 0;
$$.aop = 3;
}
| LPAREN S RPAREN
{
$$.r0 = 0;
$$.s0 = 1;
$$.aop = 3;
}
| LPAREN V RPAREN
{
$$.r0 = 1;
$$.s0 = 0;
$$.aop = 3;
}
| LPAREN V COMMA S RPAREN
{
$$.r0 = 1;
$$.s0 = 1;
}
| LPAREN S COMMA V RPAREN
{
$$.r0 = 1;
$$.s0 = 1;
}
;
vmod:
{
$$.r0 = 0;
}
| LPAREN V RPAREN
{
$$.r0 = 1;
}
;
smod:
{
$$.s0 = 0;
}
| LPAREN S RPAREN
{
$$.s0 = 1;
}
;
searchmod:
GE
{
$$.r0 = 1;
}
| GT
{
$$.r0 = 0;
}
| LE
{
$$.r0 = 3;
}
| LT
{
$$.r0 = 2;
}
;
aligndir:
{
$$.r0 = 0;
}
| LPAREN R RPAREN
{
$$.r0 = 1;
}
;
byteop_mod:
LPAREN R RPAREN
{
$$.r0 = 0;
$$.s0 = 1;
}
| LPAREN MMOD RPAREN
{
if ($2 != M_T)
return yyerror ("Bad modifier");
$$.r0 = 1;
$$.s0 = 0;
}
| LPAREN MMOD COMMA R RPAREN
{
if ($2 != M_T)
return yyerror ("Bad modifier");
$$.r0 = 1;
$$.s0 = 1;
}
| LPAREN R COMMA MMOD RPAREN
{
if ($4 != M_T)
return yyerror ("Bad modifier");
$$.r0 = 1;
$$.s0 = 1;
}
;
c_align:
ALIGN8
{
$$.r0 = 0;
}
| ALIGN16
{
$$.r0 = 1;
}
| ALIGN24
{
$$.r0 = 2;
}
;
w32_or_nothing:
{
$$.r0 = 0;
}
| LPAREN MMOD RPAREN
{
if ($2 == M_W32)
$$.r0 = 1;
else
return yyerror ("Only (W32) allowed");
}
;
iu_or_nothing:
{
$$.r0 = 1;
}
| LPAREN MMOD RPAREN
{
if ($2 == M_IU)
$$.r0 = 3;
else
return yyerror ("(IU) expected");
}
;
reg_with_predec: LBRACK _MINUS_MINUS REG RBRACK
{
$$ = $3;
}
;
reg_with_postinc: LBRACK REG _PLUS_PLUS RBRACK
{
$$ = $2;
}
;
/* Operators. */
min_max:
MIN
{
$$.r0 = 1;
}
| MAX
{
$$.r0 = 0;
}
;
op_bar_op:
_PLUS_BAR_PLUS
{
$$.r0 = 0;
}
| _PLUS_BAR_MINUS
{
$$.r0 = 1;
}
| _MINUS_BAR_PLUS
{
$$.r0 = 2;
}
| _MINUS_BAR_MINUS
{
$$.r0 = 3;
}
;
plus_minus:
PLUS
{
$$.r0 = 0;
}
| MINUS
{
$$.r0 = 1;
}
;
rnd_op:
LPAREN RNDH RPAREN
{
$$.r0 = 1; /* HL. */
$$.s0 = 0; /* s. */
$$.x0 = 0; /* x. */
$$.aop = 0; /* aop. */
}
| LPAREN TH RPAREN
{
$$.r0 = 1; /* HL. */
$$.s0 = 0; /* s. */
$$.x0 = 0; /* x. */
$$.aop = 1; /* aop. */
}
| LPAREN RNDL RPAREN
{
$$.r0 = 0; /* HL. */
$$.s0 = 0; /* s. */
$$.x0 = 0; /* x. */
$$.aop = 0; /* aop. */
}
| LPAREN TL RPAREN
{
$$.r0 = 0; /* HL. */
$$.s0 = 0; /* s. */
$$.x0 = 0; /* x. */
$$.aop = 1;
}
| LPAREN RNDH COMMA R RPAREN
{
$$.r0 = 1; /* HL. */
$$.s0 = 1; /* s. */
$$.x0 = 0; /* x. */
$$.aop = 0; /* aop. */
}
| LPAREN TH COMMA R RPAREN
{
$$.r0 = 1; /* HL. */
$$.s0 = 1; /* s. */
$$.x0 = 0; /* x. */
$$.aop = 1; /* aop. */
}
| LPAREN RNDL COMMA R RPAREN
{
$$.r0 = 0; /* HL. */
$$.s0 = 1; /* s. */
$$.x0 = 0; /* x. */
$$.aop = 0; /* aop. */
}
| LPAREN TL COMMA R RPAREN
{
$$.r0 = 0; /* HL. */
$$.s0 = 1; /* s. */
$$.x0 = 0; /* x. */
$$.aop = 1; /* aop. */
}
;
b3_op:
LPAREN LO RPAREN
{
$$.s0 = 0; /* s. */
$$.x0 = 0; /* HL. */
}
| LPAREN HI RPAREN
{
$$.s0 = 0; /* s. */
$$.x0 = 1; /* HL. */
}
| LPAREN LO COMMA R RPAREN
{
$$.s0 = 1; /* s. */
$$.x0 = 0; /* HL. */
}
| LPAREN HI COMMA R RPAREN
{
$$.s0 = 1; /* s. */
$$.x0 = 1; /* HL. */
}
;
post_op:
{
$$.x0 = 2;
}
| _PLUS_PLUS
{
$$.x0 = 0;
}
| _MINUS_MINUS
{
$$.x0 = 1;
}
;
/* Assignments, Macfuncs. */
a_assign:
REG_A ASSIGN
{
$$ = $1;
}
;
a_minusassign:
REG_A _MINUS_ASSIGN
{
$$ = $1;
}
;
a_plusassign:
REG_A _PLUS_ASSIGN
{
$$ = $1;
}
;
assign_macfunc:
REG ASSIGN REG_A
{
$$.w = 1;
$$.P = 1;
$$.n = IS_A1 ($3);
$$.op = 3;
$$.dst = $1;
$$.s0.regno = 0;
$$.s1.regno = 0;
if (IS_A1 ($3) && IS_EVEN ($1))
return yyerror ("Cannot move A1 to even register");
else if (!IS_A1 ($3) && !IS_EVEN ($1))
return yyerror ("Cannot move A0 to odd register");
}
| a_macfunc
{
$$ = $1;
$$.w = 0; $$.P = 0;
$$.dst.regno = 0;
}
| REG ASSIGN LPAREN a_macfunc RPAREN
{
$$ = $4;
$$.w = 1;
$$.P = 1;
$$.dst = $1;
}
| HALF_REG ASSIGN LPAREN a_macfunc RPAREN
{
$$ = $4;
$$.w = 1;
$$.P = 0;
$$.dst = $1;
}
| HALF_REG ASSIGN REG_A
{
$$.w = 1;
$$.P = 0;
$$.n = IS_A1 ($3);
$$.op = 3;
$$.dst = $1;
$$.s0.regno = 0;
$$.s1.regno = 0;
if (IS_A1 ($3) && !IS_H ($1))
return yyerror ("Cannot move A1 to low half of register");
else if (!IS_A1 ($3) && IS_H ($1))
return yyerror ("Cannot move A0 to high half of register");
}
;
a_macfunc:
a_assign multiply_halfregs
{
$$.n = IS_A1 ($1);
$$.op = 0;
$$.s0 = $2.s0;
$$.s1 = $2.s1;
}
| a_plusassign multiply_halfregs
{
$$.n = IS_A1 ($1);
$$.op = 1;
$$.s0 = $2.s0;
$$.s1 = $2.s1;
}
| a_minusassign multiply_halfregs
{
$$.n = IS_A1 ($1);
$$.op = 2;
$$.s0 = $2.s0;
$$.s1 = $2.s1;
}
;
multiply_halfregs:
HALF_REG STAR HALF_REG
{
if (IS_DREG ($1) && IS_DREG ($3))
{
$$.s0 = $1;
$$.s1 = $3;
}
else
return yyerror ("Dregs expected");
}
;
cc_op:
ASSIGN
{
$$.r0 = 0;
}
| _BAR_ASSIGN
{
$$.r0 = 1;
}
| _AMPERSAND_ASSIGN
{
$$.r0 = 2;
}
| _CARET_ASSIGN
{
$$.r0 = 3;
}
;
ccstat:
CCREG cc_op STATUS_REG
{
$$.r0 = $3.regno;
$$.x0 = $2.r0;
$$.s0 = 0;
}
| CCREG cc_op V
{
$$.r0 = 0x18;
$$.x0 = $2.r0;
$$.s0 = 0;
}
| STATUS_REG cc_op CCREG
{
$$.r0 = $1.regno;
$$.x0 = $2.r0;
$$.s0 = 1;
}
| V cc_op CCREG
{
$$.r0 = 0x18;
$$.x0 = $2.r0;
$$.s0 = 1;
}
;
/* Expressions and Symbols. */
symbol: SYMBOL
{
Expr_Node_Value val;
val.s_value = S_GET_NAME($1);
$$ = Expr_Node_Create (Expr_Node_Reloc, val, NULL, NULL);
}
;
any_gotrel:
GOT
{ $$ = BFD_RELOC_BFIN_GOT; }
| GOT17M4
{ $$ = BFD_RELOC_BFIN_GOT17M4; }
| FUNCDESC_GOT17M4
{ $$ = BFD_RELOC_BFIN_FUNCDESC_GOT17M4; }
;
got: symbol AT any_gotrel
{
Expr_Node_Value val;
val.i_value = $3;
$$ = Expr_Node_Create (Expr_Node_GOT_Reloc, val, $1, NULL);
}
;
got_or_expr: got
{
$$ = $1;
}
| expr
{
$$ = $1;
}
;
pltpc :
symbol AT PLTPC
{
$$ = $1;
}
;
eterm: NUMBER
{
Expr_Node_Value val;
val.i_value = $1;
$$ = Expr_Node_Create (Expr_Node_Constant, val, NULL, NULL);
}
| symbol
{
$$ = $1;
}
| LPAREN expr_1 RPAREN
{
$$ = $2;
}
| TILDA expr_1
{
$$ = unary (Expr_Op_Type_COMP, $2);
}
| MINUS expr_1 %prec TILDA
{
$$ = unary (Expr_Op_Type_NEG, $2);
}
;
expr: expr_1
{
$$ = $1;
}
;
expr_1: expr_1 STAR expr_1
{
$$ = binary (Expr_Op_Type_Mult, $1, $3);
}
| expr_1 SLASH expr_1
{
$$ = binary (Expr_Op_Type_Div, $1, $3);
}
| expr_1 PERCENT expr_1
{
$$ = binary (Expr_Op_Type_Mod, $1, $3);
}
| expr_1 PLUS expr_1
{
$$ = binary (Expr_Op_Type_Add, $1, $3);
}
| expr_1 MINUS expr_1
{
$$ = binary (Expr_Op_Type_Sub, $1, $3);
}
| expr_1 LESS_LESS expr_1
{
$$ = binary (Expr_Op_Type_Lshift, $1, $3);
}
| expr_1 GREATER_GREATER expr_1
{
$$ = binary (Expr_Op_Type_Rshift, $1, $3);
}
| expr_1 AMPERSAND expr_1
{
$$ = binary (Expr_Op_Type_BAND, $1, $3);
}
| expr_1 CARET expr_1
{
$$ = binary (Expr_Op_Type_LOR, $1, $3);
}
| expr_1 BAR expr_1
{
$$ = binary (Expr_Op_Type_BOR, $1, $3);
}
| eterm
{
$$ = $1;
}
;
%%
EXPR_T
mkexpr (int x, SYMBOL_T s)
{
EXPR_T e = (EXPR_T) ALLOCATE (sizeof (struct expression_cell));
e->value = x;
EXPR_SYMBOL(e) = s;
return e;
}
static int
value_match (Expr_Node *expr, int sz, int sign, int mul, int issigned)
{
long umax = (1L << sz) - 1;
long min = -1L << (sz - 1);
long max = (1L << (sz - 1)) - 1;
long v = EXPR_VALUE (expr);
if ((v % mul) != 0)
{
error ("%s:%d: Value Error -- Must align to %d\n", __FILE__, __LINE__, mul);
return 0;
}
v /= mul;
if (sign)
v = -v;
if (issigned)
{
if (v >= min && v <= max) return 1;
#ifdef DEBUG
fprintf(stderr, "signed value %lx out of range\n", v * mul);
#endif
return 0;
}
if (v <= umax && v >= 0)
return 1;
#ifdef DEBUG
fprintf(stderr, "unsigned value %lx out of range\n", v * mul);
#endif
return 0;
}
/* Return the expression structure that allows symbol operations.
If the left and right children are constants, do the operation. */
static Expr_Node *
binary (Expr_Op_Type op, Expr_Node *x, Expr_Node *y)
{
Expr_Node_Value val;
if (x->type == Expr_Node_Constant && y->type == Expr_Node_Constant)
{
switch (op)
{
case Expr_Op_Type_Add:
x->value.i_value += y->value.i_value;
break;
case Expr_Op_Type_Sub:
x->value.i_value -= y->value.i_value;
break;
case Expr_Op_Type_Mult:
x->value.i_value *= y->value.i_value;
break;
case Expr_Op_Type_Div:
if (y->value.i_value == 0)
error ("Illegal Expression: Division by zero.");
else
x->value.i_value /= y->value.i_value;
break;
case Expr_Op_Type_Mod:
x->value.i_value %= y->value.i_value;
break;
case Expr_Op_Type_Lshift:
x->value.i_value <<= y->value.i_value;
break;
case Expr_Op_Type_Rshift:
x->value.i_value >>= y->value.i_value;
break;
case Expr_Op_Type_BAND:
x->value.i_value &= y->value.i_value;
break;
case Expr_Op_Type_BOR:
x->value.i_value |= y->value.i_value;
break;
case Expr_Op_Type_BXOR:
x->value.i_value ^= y->value.i_value;
break;
case Expr_Op_Type_LAND:
x->value.i_value = x->value.i_value && y->value.i_value;
break;
case Expr_Op_Type_LOR:
x->value.i_value = x->value.i_value || y->value.i_value;
break;
default:
error ("%s:%d: Internal compiler error\n", __FILE__, __LINE__);
}
return x;
}
/* Canonicalize order to EXPR OP CONSTANT. */
if (x->type == Expr_Node_Constant)
{
Expr_Node *t = x;
x = y;
y = t;
}
/* Canonicalize subtraction of const to addition of negated const. */
if (op == Expr_Op_Type_Sub && y->type == Expr_Node_Constant)
{
op = Expr_Op_Type_Add;
y->value.i_value = -y->value.i_value;
}
if (y->type == Expr_Node_Constant && x->type == Expr_Node_Binop
&& x->Right_Child->type == Expr_Node_Constant)
{
if (op == x->value.op_value && x->value.op_value == Expr_Op_Type_Add)
{
x->Right_Child->value.i_value += y->value.i_value;
return x;
}
}
/* Create a new expression structure. */
val.op_value = op;
return Expr_Node_Create (Expr_Node_Binop, val, x, y);
}
static Expr_Node *
unary (Expr_Op_Type op, Expr_Node *x)
{
if (x->type == Expr_Node_Constant)
{
switch (op)
{
case Expr_Op_Type_NEG:
x->value.i_value = -x->value.i_value;
break;
case Expr_Op_Type_COMP:
x->value.i_value = ~x->value.i_value;
break;
default:
error ("%s:%d: Internal compiler error\n", __FILE__, __LINE__);
}
return x;
}
else
{
/* Create a new expression structure. */
Expr_Node_Value val;
val.op_value = op;
return Expr_Node_Create (Expr_Node_Unop, val, x, NULL);
}
}
int debug_codeselection = 0;
static void
notethat (char *format, ...)
{
va_list ap;
va_start (ap, format);
if (debug_codeselection)
{
vfprintf (errorf, format, ap);
}
va_end (ap);
}
#ifdef TEST
main (int argc, char **argv)
{
yyparse();
}
#endif
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