Signed-off-by: Taylor Simpson <tsimp...@quicinc.com> --- target/hexagon/opcodes.h | 66 ++++++++++++++++ target/hexagon/opcodes.c | 199 +++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 265 insertions(+) create mode 100644 target/hexagon/opcodes.h create mode 100644 target/hexagon/opcodes.c
diff --git a/target/hexagon/opcodes.h b/target/hexagon/opcodes.h new file mode 100644 index 0000000..ef02592 --- /dev/null +++ b/target/hexagon/opcodes.h @@ -0,0 +1,66 @@ +/* + * Copyright(c) 2019-2020 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/>. + */ + +#ifndef HEXAGON_OPCODES_H +#define HEXAGON_OPCODES_H + +#include "hex_arch_types.h" +#include "attribs.h" + +typedef enum { +#define OPCODE(IID) IID +#include "opcodes_def_generated.h" + XX_LAST_OPCODE +#undef OPCODE +} opcode_t; + +typedef enum { + NORMAL, + HALF, + SUBINSN_A, + SUBINSN_L1, + SUBINSN_L2, + SUBINSN_S1, + SUBINSN_S2, + EXT_noext, + EXT_mmvec, + XX_LAST_ENC_CLASS +} enc_class_t; + +extern const char *opcode_names[]; + +extern const char *opcode_reginfo[]; +extern const char *opcode_rregs[]; +extern const char *opcode_wregs[]; + +typedef struct { + const char * const encoding; + uint32_t vals; + uint32_t dep_vals; + const enc_class_t enc_class; +} opcode_encoding_t; + +extern opcode_encoding_t opcode_encodings[XX_LAST_OPCODE]; + +extern uint32_t + opcode_attribs[XX_LAST_OPCODE][(A_ZZ_LASTATTRIB / ATTRIB_WIDTH) + 1]; + +extern void opcode_init(void); + +extern int opcode_which_immediate_is_extended(opcode_t opcode); + +#endif diff --git a/target/hexagon/opcodes.c b/target/hexagon/opcodes.c new file mode 100644 index 0000000..8621f1c --- /dev/null +++ b/target/hexagon/opcodes.c @@ -0,0 +1,199 @@ +/* + * Copyright(c) 2019-2020 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 "opcodes.h" +#include "decode.h" + +#define VEC_DESCR(A, B, C) DESCR(A, B, C) +#define DONAME(X) #X + +const char *opcode_names[] = { +#define OPCODE(IID) DONAME(IID) +#include "opcodes_def_generated.h" + NULL +#undef OPCODE +}; + +const char *opcode_reginfo[] = { +#define IMMINFO(TAG, SIGN, SIZE, SHAMT, SIGN2, SIZE2, SHAMT2) /* nothing */ +#define REGINFO(TAG, REGINFO, RREGS, WREGS) REGINFO, +#include "op_regs_generated.h" + NULL +#undef REGINFO +#undef IMMINFO +}; + + +const char *opcode_rregs[] = { +#define IMMINFO(TAG, SIGN, SIZE, SHAMT, SIGN2, SIZE2, SHAMT2) /* nothing */ +#define REGINFO(TAG, REGINFO, RREGS, WREGS) RREGS, +#include "op_regs_generated.h" + NULL +#undef REGINFO +#undef IMMINFO +}; + + +const char *opcode_wregs[] = { +#define IMMINFO(TAG, SIGN, SIZE, SHAMT, SIGN2, SIZE2, SHAMT2) /* nothing */ +#define REGINFO(TAG, REGINFO, RREGS, WREGS) WREGS, +#include "op_regs_generated.h" + NULL +#undef REGINFO +#undef IMMINFO +}; + +const char * const opcode_short_semantics[] = { +#define DEF_SHORTCODE(TAG, SHORTCODE) [TAG] = #SHORTCODE, +#include "shortcode_generated.h" +#undef DEF_SHORTCODE + NULL +}; + + +uint32_t + opcode_attribs[XX_LAST_OPCODE][(A_ZZ_LASTATTRIB / ATTRIB_WIDTH) + 1]; + +static void init_attribs(int tag, ...) +{ + va_list ap; + int attr; + va_start(ap, tag); + while ((attr = va_arg(ap, int)) != 0) { + opcode_attribs[tag][attr / ATTRIB_WIDTH] |= 1 << (attr % ATTRIB_WIDTH); + } +} + +static uint32_t str2val(const char *str) +{ + uint32_t ret = 0; + for ( ; *str; str++) { + switch (*str) { + case ' ': + case '\t': + break; + case 's': + case 't': + case 'u': + case 'v': + case 'w': + case 'd': + case 'e': + case 'x': + case 'y': + case 'i': + case 'I': + case 'P': + case 'E': + case 'o': + case '-': + case '0': + ret = (ret << 1) | 0; + break; + case '1': + ret = (ret << 1) | 1; + break; + default: + break; + } + } + return ret; +} + +opcode_encoding_t 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 DEF_ENC32(OPCODE, ENCSTR) \ + opcode_encodings[OPCODE].vals = str2val(ENCSTR); + +#define DEF_ENC_SUBINSN(OPCODE, CLASS, ENCSTR) \ + opcode_encodings[OPCODE].vals = str2val(ENCSTR); + +#define LEGACY_DEF_ENC32(OPCODE, ENCSTR) \ + opcode_encodings[OPCODE].dep_vals = str2val(ENCSTR); + +#define DEF_EXT_ENC(OPCODE, CLASS, ENCSTR) \ + opcode_encodings[OPCODE].vals = str2val(ENCSTR); + +#include "imported/encode.def" + +#undef LEGACY_DEF_ENC32 +#undef DEF_ENC32 +#undef DEF_ENC_SUBINSN +#undef DEF_EXT_ENC + +#define ATTRIBS(...) , ## __VA_ARGS__, 0 +#define OP_ATTRIB(TAG, ARGS) init_attribs(TAG ARGS); +#include "op_attribs_generated.h" +#undef OP_ATTRIB +#undef ATTRIBS + + decode_init(); +} + + +#define NEEDLE "IMMEXT(" + +int opcode_which_immediate_is_extended(opcode_t 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(); + } +} -- 2.7.4
