new file mode 100644
@@ -0,0 +1,253 @@
+/*
+ * Copyright(c) 2019-2022 rev.ng Labs Srl. 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 IDEF_PARSER_H
+#define IDEF_PARSER_H
+
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdbool.h>
+#include <glib.h>
+
+#define TCGV_NAME_SIZE 7
+#define MAX_WRITTEN_REGS 32
+#define OFFSET_STR_LEN 32
+#define ALLOC_LIST_LEN 32
+#define ALLOC_NAME_SIZE 32
+#define INIT_LIST_LEN 32
+#define OUT_BUF_LEN (1024 * 1024)
+#define SIGNATURE_BUF_LEN (128 * 1024)
+#define HEADER_BUF_LEN (128 * 1024)
+
+/* Variadic macros to wrap the buffer printing functions */
+#define EMIT(c, ...) \
+ do { \
+ g_string_append_printf((c)->out_str, __VA_ARGS__); \
+ } while (0)
+
+#define EMIT_SIG(c, ...) \
+ do { \
+ g_string_append_printf((c)->signature_str, __VA_ARGS__); \
+ } while (0)
+
+#define EMIT_HEAD(c, ...) \
+ do { \
+ g_string_append_printf((c)->header_str, __VA_ARGS__); \
+ } while (0)
+
+/**
+ * Type of register, assigned to the HexReg.type field
+ */
+typedef enum { GENERAL_PURPOSE, CONTROL, MODIFIER, DOTNEW } HexRegType;
+
+typedef enum { UNKNOWN_SIGNEDNESS, SIGNED, UNSIGNED } HexSignedness;
+
+/**
+ * Semantic record of the REG tokens, identifying registers
+ */
+typedef struct HexReg {
+ uint8_t id; /**< Identifier of the register */
+ HexRegType type; /**< Type of the register */
+ unsigned bit_width; /**< Bit width of the reg, 32 or 64 bits */
+} HexReg;
+
+/**
+ * Data structure, identifying a TCGv temporary value
+ */
+typedef struct HexTmp {
+ unsigned index; /**< Index of the TCGv temporary value */
+} HexTmp;
+
+/**
+ * Enum of the possible immediated, an immediate is a value which is known
+ * at tinycode generation time, e.g. an integer value, not a TCGv
+ */
+enum ImmUnionTag {
+ I,
+ VARIABLE,
+ VALUE,
+ QEMU_TMP,
+ IMM_PC,
+ IMM_NPC,
+ IMM_CONSTEXT,
+};
+
+/**
+ * Semantic record of the IMM token, identifying an immediate constant
+ */
+typedef struct HexImm {
+ union {
+ char id; /**< Identifier, used when type is VARIABLE */
+ uint64_t value; /**< Immediate value, used when type is VALUE */
+ uint64_t index; /**< Index, used when type is QEMU_TMP */
+ };
+ enum ImmUnionTag type; /**< Type of the immediate */
+} HexImm;
+
+/**
+ * Semantic record of the PRED token, identifying a predicate
+ */
+typedef struct HexPred {
+ char id; /**< Identifier of the predicate */
+} HexPred;
+
+/**
+ * Semantic record of the SAT token, identifying the saturate operator
+ * Note: All saturates are assumed to implicitly set overflow.
+ */
+typedef struct HexSat {
+ HexSignedness signedness; /**< Signedness of the sat. op. */
+} HexSat;
+
+/**
+ * Semantic record of the CAST token, identifying the cast operator
+ */
+typedef struct HexCast {
+ unsigned bit_width; /**< Bit width of the cast operator */
+ HexSignedness signedness; /**< Unsigned flag for the cast operator */
+} HexCast;
+
+/**
+ * Semantic record of the EXTRACT token, identifying the cast operator
+ */
+typedef struct HexExtract {
+ unsigned bit_width; /**< Bit width of the extract operator */
+ unsigned storage_bit_width; /**< Actual bit width of the extract operator */
+ HexSignedness signedness; /**< Unsigned flag for the extract operator */
+} HexExtract;
+
+/**
+ * Semantic record of the MPY token, identifying the fMPY multiplication
+ * operator
+ */
+typedef struct HexMpy {
+ unsigned first_bit_width; /**< Bit width of 1st operand of fMPY */
+ unsigned second_bit_width; /**< Bit width of 2nd operand of fMPY */
+ HexSignedness first_signedness; /**< Signedness of 1st operand of fMPY */
+ HexSignedness second_signedness; /**< Signedness of 2nd operand of fMPY */
+} HexMpy;
+
+/**
+ * Semantic record of the VARID token, identifying declared variables
+ * of the input language
+ */
+typedef struct HexVar {
+ GString *name; /**< Name of the VARID variable */
+} HexVar;
+
+/**
+ * Data structure uniquely identifying a declared VARID variable, used for
+ * keeping track of declared variable, so that any variable is declared only
+ * once, and its properties are propagated through all the subsequent instances
+ * of that variable
+ */
+typedef struct Var {
+ GString *name; /**< Name of the VARID variable */
+ uint8_t bit_width; /**< Bit width of the VARID variable */
+ HexSignedness signedness; /**< Unsigned flag for the VARID var */
+} Var;
+
+/**
+ * Enum of the possible rvalue types, used in the HexValue.type field
+ */
+typedef enum RvalueUnionTag {
+ REGISTER, REGISTER_ARG, TEMP, IMMEDIATE, PREDICATE, VARID
+} RvalueUnionTag;
+
+/**
+ * Semantic record of the rvalue token, identifying any numeric value,
+ * immediate or register based. The rvalue tokens are combined together
+ * through the use of several operators, to encode expressions
+ */
+typedef struct HexValue {
+ union {
+ HexReg reg; /**< rvalue of register type */
+ HexTmp tmp; /**< rvalue of temporary type */
+ HexImm imm; /**< rvalue of immediate type */
+ HexPred pred; /**< rvalue of predicate type */
+ HexVar var; /**< rvalue of declared variable type */
+ };
+ RvalueUnionTag type; /**< Type of the rvalue */
+ unsigned bit_width; /**< Bit width of the rvalue */
+ HexSignedness signedness; /**< Unsigned flag for the rvalue */
+ bool is_dotnew; /**< rvalue of predicate type is dotnew? */
+ bool is_manual; /**< Opt out of automatic freeing of params */
+} HexValue;
+
+/**
+ * State of ternary operator
+ */
+typedef enum TernaryState { IN_LEFT, IN_RIGHT } TernaryState;
+
+/**
+ * Data structure used to handle side effects inside ternary operators
+ */
+typedef struct Ternary {
+ TernaryState state;
+ HexValue cond;
+} Ternary;
+
+/**
+ * Operator type, used for referencing the correct operator when calling the
+ * gen_bin_op() function, which in turn will generate the correct code to
+ * execute the operation between the two rvalues
+ */
+typedef enum OpType {
+ ADD_OP, SUB_OP, MUL_OP, ASL_OP, ASR_OP, LSR_OP, ANDB_OP, ORB_OP,
+ XORB_OP, ANDL_OP, MINI_OP, MAXI_OP
+} OpType;
+
+/**
+ * Data structure including instruction specific information, to be cleared
+ * out after the compilation of each instruction
+ */
+typedef struct Inst {
+ GString *name; /**< Name of the compiled instruction */
+ char *code_begin; /**< Beginning of instruction input code */
+ char *code_end; /**< End of instruction input code */
+ unsigned tmp_count; /**< Index of the last declared TCGv temp */
+ unsigned qemu_tmp_count; /**< Index of the last declared int temp */
+ unsigned if_count; /**< Index of the last declared if label */
+ unsigned error_count; /**< Number of generated errors */
+ GArray *allocated; /**< Allocated declaredVARID vars */
+ GArray *init_list; /**< List of initialized registers */
+ GArray *strings; /**< Strings allocated by the instruction */
+} Inst;
+
+/**
+ * Data structure representing the whole translation context, which in a
+ * reentrant flex/bison parser just like ours is passed between the scanner
+ * and the parser, holding all the necessary information to perform the
+ * parsing, this data structure survives between the compilation of different
+ * instructions
+ */
+typedef struct Context {
+ void *scanner; /**< Reentrant parser state pointer */
+ char *input_buffer; /**< Buffer containing the input code */
+ GString *out_str; /**< String containing the output code */
+ GString *signature_str; /**< String containing the signatures code */
+ GString *header_str; /**< String containing the header code */
+ FILE *defines_file; /**< FILE * of the generated header */
+ FILE *output_file; /**< FILE * of the C output file */
+ FILE *enabled_file; /**< FILE * of the list of enabled inst */
+ GArray *ternary; /**< Array to track nesting of ternary ops */
+ unsigned total_insn; /**< Number of instructions in input file */
+ unsigned implemented_insn; /**< Instruction compiled without errors */
+ Inst inst; /**< Parsing data of the current inst */
+} Context;
+
+#endif /* IDEF_PARSER_H */
new file mode 100644
@@ -0,0 +1,471 @@
+%option noyywrap noinput nounput
+%option 8bit reentrant bison-bridge
+%option warn nodefault
+%option bison-locations
+
+%{
+/*
+ * Copyright(c) 2019-2022 rev.ng Labs Srl. 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/>.
+ */
+
+#include <string.h>
+#include <stdbool.h>
+
+#include "hex_regs.h"
+
+#include "idef-parser.h"
+#include "idef-parser.tab.h"
+
+/* Keep track of scanner position for error message printout */
+#define YY_USER_ACTION yylloc->first_column = yylloc->last_column; \
+ for (int i = 0; yytext[i] != '\0'; i++) { \
+ yylloc->last_column++; \
+ }
+
+/* Global Error Counter */
+int error_count;
+
+%}
+
+/* Definitions */
+DIGIT [0-9]
+LOWER_ID [a-z]
+UPPER_ID [A-Z]
+ID LOWER_ID|UPPER_ID
+INST_NAME [A-Z]+[0-9]_([A-Za-z]|[0-9]|_)+
+HEX_DIGIT [0-9a-fA-F]
+REG_ID_32 e|s|d|t|u|v|x|y
+REG_ID_64 ee|ss|dd|tt|uu|vv|xx|yy
+SYS_ID_32 s|d
+SYS_ID_64 ss|dd
+PRED_ID d|s|t|u|v|e|x|x
+IMM_ID r|s|S|u|U
+VAR_ID [a-zA-Z_][a-zA-Z0-9_]*
+SIGN_ID s|u
+STRING_LIT \"(\\.|[^"\\])*\"
+
+/* Tokens */
+%%
+
+[ \t\f\v]+ { /* Ignore whitespaces. */ }
+[\n\r]+ { /* Ignore newlines. */ }
+^#.*$ { /* Ignore linemarkers. */ }
+
+{INST_NAME} { yylval->string = g_string_new(yytext);
+ return INAME; }
+"fFLOAT" |
+"fUNFLOAT" |
+"fDOUBLE" |
+"fUNDOUBLE" |
+"0.0" |
+"0x1.0p52" |
+"0x1.0p-52" { return FAIL; }
+"in" { return IN; }
+"R"{REG_ID_32}"V" {
+ yylval->rvalue.type = REGISTER_ARG;
+ yylval->rvalue.reg.type = GENERAL_PURPOSE;
+ yylval->rvalue.reg.id = yytext[1];
+ yylval->rvalue.reg.bit_width = 32;
+ yylval->rvalue.bit_width = 32;
+ yylval->rvalue.is_dotnew = false;
+ yylval->rvalue.signedness = SIGNED;
+ return REG; }
+"R"{REG_ID_64}"V" {
+ yylval->rvalue.type = REGISTER_ARG;
+ yylval->rvalue.reg.type = GENERAL_PURPOSE;
+ yylval->rvalue.reg.id = yytext[1];
+ yylval->rvalue.reg.bit_width = 64;
+ yylval->rvalue.bit_width = 64;
+ yylval->rvalue.is_dotnew = false;
+ yylval->rvalue.signedness = SIGNED;
+ return REG; }
+"MuV" {
+ yylval->rvalue.type = REGISTER_ARG;
+ yylval->rvalue.reg.type = MODIFIER;
+ yylval->rvalue.reg.id = 'u';
+ yylval->rvalue.reg.bit_width = 32;
+ yylval->rvalue.bit_width = 32;
+ yylval->rvalue.signedness = SIGNED;
+ return REG; }
+"C"{REG_ID_32}"V" {
+ yylval->rvalue.type = REGISTER_ARG;
+ yylval->rvalue.reg.type = CONTROL;
+ yylval->rvalue.reg.id = yytext[1];
+ yylval->rvalue.reg.bit_width = 32;
+ yylval->rvalue.bit_width = 32;
+ yylval->rvalue.is_dotnew = false;
+ yylval->rvalue.signedness = SIGNED;
+ return REG; }
+"C"{REG_ID_64}"V" {
+ yylval->rvalue.type = REGISTER_ARG;
+ yylval->rvalue.reg.type = CONTROL;
+ yylval->rvalue.reg.id = yytext[1];
+ yylval->rvalue.reg.bit_width = 64;
+ yylval->rvalue.bit_width = 64;
+ yylval->rvalue.is_dotnew = false;
+ yylval->rvalue.signedness = SIGNED;
+ return REG; }
+{IMM_ID}"iV" {
+ yylval->rvalue.type = IMMEDIATE;
+ yylval->rvalue.signedness = SIGNED;
+ yylval->rvalue.imm.type = VARIABLE;
+ yylval->rvalue.imm.id = yytext[0];
+ yylval->rvalue.bit_width = 32;
+ yylval->rvalue.is_dotnew = false;
+ return IMM; }
+"P"{PRED_ID}"V" {
+ yylval->rvalue.type = PREDICATE;
+ yylval->rvalue.pred.id = yytext[1];
+ yylval->rvalue.bit_width = 32;
+ yylval->rvalue.is_dotnew = false;
+ yylval->rvalue.signedness = SIGNED;
+ return PRED; }
+"P"{PRED_ID}"N" {
+ yylval->rvalue.type = PREDICATE;
+ yylval->rvalue.pred.id = yytext[1];
+ yylval->rvalue.bit_width = 32;
+ yylval->rvalue.is_dotnew = true;
+ yylval->rvalue.signedness = SIGNED;
+ return PRED; }
+"IV1DEAD()" |
+"fPAUSE(uiV);" { return ';'; }
+"+=" { return INC; }
+"-=" { return DEC; }
+"++" { return PLUSPLUS; }
+"&=" { return ANDA; }
+"|=" { return ORA; }
+"^=" { return XORA; }
+"<<" { return ASL; }
+">>" { return ASR; }
+">>>" { return LSR; }
+"==" { return EQ; }
+"!=" { return NEQ; }
+"<=" { return LTE; }
+">=" { return GTE; }
+"&&" { return ANDL; }
+"else" { return ELSE; }
+"for" { return FOR; }
+"fREAD_IREG" { return ICIRC; }
+"fPART1" { return PART1; }
+"if" { return IF; }
+"fFRAME_SCRAMBLE" { return FSCR; }
+"fFRAME_UNSCRAMBLE" { return FSCR; }
+"fFRAMECHECK" { return FCHK; }
+"Constant_extended" { return CONSTEXT; }
+"fCL1_"{DIGIT} { return LOCNT; }
+"fbrev" { return BREV; }
+"fSXTN" { return SXT; }
+"fZXTN" { return ZXT; }
+"fDF_MAX" |
+"fSF_MAX" |
+"fMAX" { return MAX; }
+"fDF_MIN" |
+"fSF_MIN" |
+"fMIN" { return MIN; }
+"fABS" { return ABS; }
+"fRNDN" { return ROUND; }
+"fCRND" { return CROUND; }
+"fCRNDN" { return CROUND; }
+"fPM_CIRI" { return CIRCADD; }
+"fPM_CIRR" { return CIRCADD; }
+"fCOUNTONES_"{DIGIT} { return COUNTONES; }
+"fSATN" { yylval->sat.signedness = SIGNED;
+ return SAT; }
+"fSATUN" { yylval->sat.signedness = UNSIGNED;
+ return SAT; }
+"fCONSTLL" { yylval->cast.bit_width = 64;
+ yylval->cast.signedness = SIGNED;
+ return CAST; }
+"fSE32_64" { yylval->cast.bit_width = 64;
+ yylval->cast.signedness = SIGNED;
+ return CAST; }
+"fCAST4_4u" { yylval->cast.bit_width = 32;
+ yylval->cast.signedness = UNSIGNED;
+ return CAST; }
+"fCAST4_8s" { yylval->cast.bit_width = 64;
+ yylval->cast.signedness = SIGNED;
+ return CAST; }
+"fCAST4_8u" { return CAST4_8U; }
+"fCAST4u" { yylval->cast.bit_width = 32;
+ yylval->cast.signedness = UNSIGNED;
+ return CAST; }
+"fNEWREG" |
+"fCAST4_4s" |
+"fCAST4s" { yylval->cast.bit_width = 32;
+ yylval->cast.signedness = SIGNED;
+ return CAST; }
+"fCAST8_8u" { yylval->cast.bit_width = 64;
+ yylval->cast.signedness = UNSIGNED;
+ return CAST; }
+"fCAST8u" { yylval->cast.bit_width = 64;
+ yylval->cast.signedness = UNSIGNED;
+ return CAST; }
+"fCAST8_8s" |
+"fCAST8s" { yylval->cast.bit_width = 64;
+ yylval->cast.signedness = SIGNED;
+ return CAST; }
+"fGETBIT" { yylval->extract.bit_width = 1;
+ yylval->extract.storage_bit_width = 1;
+ yylval->extract.signedness = UNSIGNED;
+ return EXTRACT; }
+"fGETBYTE" { yylval->extract.bit_width = 8;
+ yylval->extract.storage_bit_width = 8;
+ yylval->extract.signedness = SIGNED;
+ return EXTRACT; }
+"fGETUBYTE" { yylval->extract.bit_width = 8;
+ yylval->extract.storage_bit_width = 8;
+ yylval->extract.signedness = UNSIGNED;
+ return EXTRACT; }
+"fGETHALF" { yylval->extract.bit_width = 16;
+ yylval->extract.storage_bit_width = 16;
+ yylval->extract.signedness = SIGNED;
+ return EXTRACT; }
+"fGETUHALF" { yylval->extract.bit_width = 16;
+ yylval->extract.storage_bit_width = 16;
+ yylval->extract.signedness = UNSIGNED;
+ return EXTRACT; }
+"fGETWORD" { yylval->extract.bit_width = 32;
+ yylval->extract.storage_bit_width = 64;
+ yylval->extract.signedness = SIGNED;
+ return EXTRACT; }
+"fGETUWORD" { yylval->extract.bit_width = 32;
+ yylval->extract.storage_bit_width = 64;
+ yylval->extract.signedness = UNSIGNED;
+ return EXTRACT; }
+"fEXTRACTU_RANGE" { return EXTRANGE; }
+"fSETBIT" { yylval->cast.bit_width = 1;
+ yylval->cast.signedness = SIGNED;
+ return DEPOSIT; }
+"fSETBYTE" { yylval->cast.bit_width = 8;
+ yylval->cast.signedness = SIGNED;
+ return DEPOSIT; }
+"fSETHALF" { yylval->cast.bit_width = 16;
+ yylval->cast.signedness = SIGNED;
+ return SETHALF; }
+"fSETWORD" { yylval->cast.bit_width = 32;
+ yylval->cast.signedness = SIGNED;
+ return DEPOSIT; }
+"fINSERT_BITS" { return INSBITS; }
+"fSETBITS" { return SETBITS; }
+"fMPY16UU" { yylval->mpy.first_bit_width = 16;
+ yylval->mpy.second_bit_width = 16;
+ yylval->mpy.first_signedness = UNSIGNED;
+ yylval->mpy.second_signedness = UNSIGNED;
+ return MPY; }
+"fMPY16SU" { yylval->mpy.first_bit_width = 16;
+ yylval->mpy.second_bit_width = 16;
+ yylval->mpy.first_signedness = SIGNED;
+ yylval->mpy.second_signedness = UNSIGNED;
+ return MPY; }
+"fMPY16SS" { yylval->mpy.first_bit_width = 16;
+ yylval->mpy.second_bit_width = 16;
+ yylval->mpy.first_signedness = SIGNED;
+ yylval->mpy.second_signedness = SIGNED;
+ return MPY; }
+"fMPY32UU" { yylval->mpy.first_bit_width = 32;
+ yylval->mpy.second_bit_width = 32;
+ yylval->mpy.first_signedness = UNSIGNED;
+ yylval->mpy.second_signedness = UNSIGNED;
+ return MPY; }
+"fMPY32SU" { yylval->mpy.first_bit_width = 32;
+ yylval->mpy.second_bit_width = 32;
+ yylval->mpy.first_signedness = SIGNED;
+ yylval->mpy.second_signedness = UNSIGNED;
+ return MPY; }
+"fSFMPY" |
+"fMPY32SS" { yylval->mpy.first_bit_width = 32;
+ yylval->mpy.second_bit_width = 32;
+ yylval->mpy.first_signedness = SIGNED;
+ yylval->mpy.second_signedness = SIGNED;
+ return MPY; }
+"fMPY3216SS" { yylval->mpy.first_bit_width = 32;
+ yylval->mpy.second_bit_width = 16;
+ yylval->mpy.first_signedness = SIGNED;
+ yylval->mpy.second_signedness = SIGNED;
+ return MPY; }
+"fMPY3216SU" { yylval->mpy.first_bit_width = 32;
+ yylval->mpy.second_bit_width = 16;
+ yylval->mpy.first_signedness = SIGNED;
+ yylval->mpy.second_signedness = UNSIGNED;
+ return MPY; }
+"fNEWREG_ST" |
+"fIMMEXT" |
+"fMUST_IMMEXT" |
+"fPASS" |
+"fECHO" { return IDENTITY; }
+"(size8u_t)" { yylval->cast.bit_width = 64;
+ yylval->cast.signedness = UNSIGNED;
+ return CAST; }
+"(unsigned int)" { yylval->cast.bit_width = 32;
+ yylval->cast.signedness = UNSIGNED;
+ return CAST; }
+"fREAD_PC()" |
+"PC" { return PC; }
+"fREAD_NPC()" |
+"NPC" { return NPC; }
+"fGET_LPCFG" |
+"USR.LPCFG" { return LPCFG; }
+"LOAD_CANCEL(EA)" |
+"STORE_CANCEL(EA)" |
+"CANCEL" { return CANCEL; }
+"N"{LOWER_ID}"N" { yylval->rvalue.type = REGISTER_ARG;
+ yylval->rvalue.reg.type = DOTNEW;
+ yylval->rvalue.reg.id = yytext[1];
+ yylval->rvalue.reg.bit_width = 32;
+ yylval->rvalue.bit_width = 32;
+ yylval->rvalue.signedness = UNSIGNED;
+ return REG; }
+"fREAD_SP()" |
+"SP" { yylval->rvalue.type = REGISTER;
+ yylval->rvalue.reg.type = GENERAL_PURPOSE;
+ yylval->rvalue.reg.id = HEX_REG_SP;
+ yylval->rvalue.reg.bit_width = 32;
+ yylval->rvalue.bit_width = 32;
+ yylval->rvalue.signedness = UNSIGNED;
+ return REG; }
+"fREAD_FP()" |
+"FP" { yylval->rvalue.type = REGISTER;
+ yylval->rvalue.reg.type = GENERAL_PURPOSE;
+ yylval->rvalue.reg.id = HEX_REG_FP;
+ yylval->rvalue.reg.bit_width = 32;
+ yylval->rvalue.bit_width = 32;
+ yylval->rvalue.signedness = UNSIGNED;
+ return REG; }
+"fREAD_LR()" |
+"LR" { yylval->rvalue.type = REGISTER;
+ yylval->rvalue.reg.type = GENERAL_PURPOSE;
+ yylval->rvalue.reg.id = HEX_REG_LR;
+ yylval->rvalue.reg.bit_width = 32;
+ yylval->rvalue.bit_width = 32;
+ yylval->rvalue.signedness = UNSIGNED;
+ return REG; }
+"fREAD_GP()" |
+"GP" { yylval->rvalue.type = REGISTER;
+ yylval->rvalue.reg.type = CONTROL;
+ yylval->rvalue.reg.id = HEX_REG_GP;
+ yylval->rvalue.reg.bit_width = 32;
+ yylval->rvalue.bit_width = 32;
+ yylval->rvalue.signedness = UNSIGNED;
+ return REG; }
+"fREAD_LC"[01] { yylval->rvalue.type = REGISTER;
+ yylval->rvalue.reg.type = CONTROL;
+ yylval->rvalue.reg.id = HEX_REG_LC0
+ + (yytext[8] - '0') * 2;
+ yylval->rvalue.reg.bit_width = 32;
+ yylval->rvalue.bit_width = 32;
+ yylval->rvalue.signedness = UNSIGNED;
+ return REG; }
+"LC"[01] { yylval->rvalue.type = REGISTER;
+ yylval->rvalue.reg.type = CONTROL;
+ yylval->rvalue.reg.id = HEX_REG_LC0
+ + (yytext[2] - '0') * 2;
+ yylval->rvalue.reg.bit_width = 32;
+ yylval->rvalue.bit_width = 32;
+ yylval->rvalue.signedness = UNSIGNED;
+ return REG; }
+"fREAD_SA"[01] { yylval->rvalue.type = REGISTER;
+ yylval->rvalue.reg.type = CONTROL;
+ yylval->rvalue.reg.id = HEX_REG_SA0
+ + (yytext[8] - '0') * 2;
+ yylval->rvalue.reg.bit_width = 32;
+ yylval->rvalue.bit_width = 32;
+ yylval->rvalue.signedness = UNSIGNED;
+ return REG; }
+"SA"[01] { yylval->rvalue.type = REGISTER;
+ yylval->rvalue.reg.type = CONTROL;
+ yylval->rvalue.reg.id = HEX_REG_SA0
+ + (yytext[2] - '0') * 2;
+ yylval->rvalue.reg.bit_width = 32;
+ yylval->rvalue.bit_width = 32;
+ yylval->rvalue.signedness = UNSIGNED;
+ return REG; }
+"fREAD_P0()" { yylval->rvalue.type = PREDICATE;
+ yylval->rvalue.pred.id = '0';
+ yylval->rvalue.bit_width = 32;
+ return PRED; }
+[pP]{DIGIT} { yylval->rvalue.type = PREDICATE;
+ yylval->rvalue.pred.id = yytext[1];
+ yylval->rvalue.bit_width = 32;
+ yylval->rvalue.is_dotnew = false;
+ return PRED; }
+[pP]{DIGIT}[nN] { yylval->rvalue.type = PREDICATE;
+ yylval->rvalue.pred.id = yytext[1];
+ yylval->rvalue.bit_width = 32;
+ yylval->rvalue.is_dotnew = true;
+ return PRED; }
+"fLSBNEW" { return LSBNEW; }
+"N" { yylval->rvalue.type = IMMEDIATE;
+ yylval->rvalue.bit_width = 32;
+ yylval->rvalue.imm.type = VARIABLE;
+ yylval->rvalue.imm.id = 'N';
+ return IMM; }
+"i" { yylval->rvalue.type = IMMEDIATE;
+ yylval->rvalue.bit_width = 32;
+ yylval->rvalue.signedness = SIGNED;
+ yylval->rvalue.imm.type = I;
+ return IMM; }
+{SIGN_ID} { if (yytext[0] == 'u') {
+ yylval->signedness = UNSIGNED;
+ } else {
+ yylval->signedness = SIGNED;
+ }
+ return SIGN;
+ }
+"0x"{HEX_DIGIT}+ |
+{DIGIT}+ { yylval->rvalue.type = IMMEDIATE;
+ yylval->rvalue.bit_width = 32;
+ yylval->rvalue.signedness = SIGNED;
+ yylval->rvalue.imm.type = VALUE;
+ yylval->rvalue.imm.value = strtoull(yytext, NULL, 0);
+ return IMM; }
+"0x"{HEX_DIGIT}+"ULL" |
+{DIGIT}+"ULL" { yylval->rvalue.type = IMMEDIATE;
+ yylval->rvalue.bit_width = 64;
+ yylval->rvalue.signedness = UNSIGNED;
+ yylval->rvalue.imm.type = VALUE;
+ yylval->rvalue.imm.value = strtoull(yytext, NULL, 0);
+ return IMM; }
+"fLOAD" { return LOAD; }
+"fSTORE" { return STORE; }
+"fROTL" { return ROTL; }
+"fCARRY_FROM_ADD" { return CARRY_FROM_ADD; }
+"fADDSAT64" { return ADDSAT64; }
+"size"[1248][us]"_t" { /* Handles "size_t" variants of int types */
+ const unsigned int bits_per_byte = 8;
+ const unsigned int bytes = yytext[4] - '0';
+ yylval->rvalue.bit_width = bits_per_byte * bytes;
+ if (yytext[5] == 'u') {
+ yylval->rvalue.signedness = UNSIGNED;
+ } else {
+ yylval->rvalue.signedness = SIGNED;
+ }
+ return TYPE_SIZE_T; }
+"unsigned" { return TYPE_UNSIGNED; }
+"long" { return TYPE_LONG; }
+"int" { return TYPE_INT; }
+"const" { /* Emit no token */ }
+{VAR_ID} { /* Variable name, we adopt the C names convention */
+ yylval->rvalue.type = VARID;
+ yylval->rvalue.var.name = g_string_new(yytext);
+ /* Default to an unknown signedness and 0 width. */
+ yylval->rvalue.bit_width = 0;
+ yylval->rvalue.signedness = UNKNOWN_SIGNEDNESS;
+ return VAR; }
+"fatal("{STRING_LIT}")" { /* Emit no token */ }
+"fHINTJR(RsV)" { /* Emit no token */ }
+. { return yytext[0]; }
+
+%%
@@ -196,4 +196,8 @@ preprocessed_idef_parser_input_generated = custom_target(
command: [idef_parser_dir / 'prepare', '@INPUT@', '-I' + idef_parser_dir, '-o', '@OUTPUT@'],
)
+flex = generator(find_program('flex'),
+ output: ['@BASENAME@.yy.c', '@BASENAME@.yy.h'],
+ arguments: ['-o', '@OUTPUT0@', '--header-file=@OUTPUT1@', '@INPUT@'])
+
target_arch += {'hexagon': hexagon_ss}