qemu/target/hexagon/opcodes.c

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/*
* Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
/*
* opcodes.c
*
* data tables generated automatically
* Maybe some functions too
*/
#include "qemu/osdep.h"
#include "attribs.h"
#include "decode.h"
#define VEC_DESCR(A, B, C) DESCR(A, B, C)
#define DONAME(X) #X
const char * const opcode_names[] = {
#define OPCODE(IID) DONAME(IID)
#include "opcodes_def_generated.h.inc"
NULL
#undef OPCODE
};
const char * const opcode_reginfo[] = {
#define IMMINFO(TAG, SIGN, SIZE, SHAMT, SIGN2, SIZE2, SHAMT2) /* nothing */
#define REGINFO(TAG, REGINFO, RREGS, WREGS) REGINFO,
#include "op_regs_generated.h.inc"
NULL
#undef REGINFO
#undef IMMINFO
};
const char * const opcode_rregs[] = {
#define IMMINFO(TAG, SIGN, SIZE, SHAMT, SIGN2, SIZE2, SHAMT2) /* nothing */
#define REGINFO(TAG, REGINFO, RREGS, WREGS) RREGS,
#include "op_regs_generated.h.inc"
NULL
#undef REGINFO
#undef IMMINFO
};
const char * const opcode_wregs[] = {
#define IMMINFO(TAG, SIGN, SIZE, SHAMT, SIGN2, SIZE2, SHAMT2) /* nothing */
#define REGINFO(TAG, REGINFO, RREGS, WREGS) WREGS,
#include "op_regs_generated.h.inc"
NULL
#undef REGINFO
#undef IMMINFO
};
const char * const opcode_short_semantics[] = {
#define DEF_SHORTCODE(TAG, SHORTCODE) [TAG] = #SHORTCODE,
#include "shortcode_generated.h.inc"
#undef DEF_SHORTCODE
NULL
};
DECLARE_BITMAP(opcode_attribs[XX_LAST_OPCODE], A_ZZ_LASTATTRIB);
static void init_attribs(int tag, ...)
{
va_list ap;
int attr;
va_start(ap, tag);
while ((attr = va_arg(ap, int)) != 0) {
set_bit(attr, opcode_attribs[tag]);
}
va_end(ap);
}
const OpcodeEncoding opcode_encodings[] = {
#define DEF_ENC32(OPCODE, ENCSTR) \
[OPCODE] = { .encoding = ENCSTR },
#define DEF_ENC_SUBINSN(OPCODE, CLASS, ENCSTR) \
[OPCODE] = { .encoding = ENCSTR, .enc_class = CLASS },
#define DEF_EXT_ENC(OPCODE, CLASS, ENCSTR) \
[OPCODE] = { .encoding = ENCSTR, .enc_class = CLASS },
#include "imported/encode.def"
#undef DEF_ENC32
#undef DEF_ENC_SUBINSN
#undef DEF_EXT_ENC
};
void opcode_init(void)
{
init_attribs(0, 0);
#define ATTRIBS(...) , ## __VA_ARGS__, 0
#define OP_ATTRIB(TAG, ARGS) init_attribs(TAG ARGS);
#include "op_attribs_generated.h.inc"
#undef OP_ATTRIB
#undef ATTRIBS
decode_init();
}
#define NEEDLE "IMMEXT("
int opcode_which_immediate_is_extended(Opcode opcode)
{
const char *p;
g_assert(opcode < XX_LAST_OPCODE);
g_assert(GET_ATTRIB(opcode, A_EXTENDABLE));
p = opcode_short_semantics[opcode];
p = strstr(p, NEEDLE);
g_assert(p);
p += strlen(NEEDLE);
while (isspace(*p)) {
p++;
}
/* lower is always imm 0, upper always imm 1. */
if (islower(*p)) {
return 0;
} else if (isupper(*p)) {
return 1;
} else {
g_assert_not_reached();
}
}