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* cgen.h (CGEN_CAT3): Delete. Use CONCAT3 now.
(cgen_insn): Record syntax and format entries here, rather than separately.
This commit is contained in:
Doug Evans
@ -1,3 +1,9 @@
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Mon Feb 23 10:38:21 1998 Doug Evans <devans@seba.cygnus.com>
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* cgen.h (CGEN_CAT3): Delete. Use CONCAT3 now.
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(cgen_insn): Record syntax and format entries here, rather than
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separately.
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start-sanitize-sky
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Fri Feb 20 18:00:10 1998 Doug Evans <devans@canuck.cygnus.com>
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@ -21,15 +21,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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#ifndef CGEN_H
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#define CGEN_H
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#ifndef CGEN_CAT3
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#if defined(__STDC__) || defined(ALMOST_STDC)
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#define CGEN_XCAT3(a,b,c) a ## b ## c
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#define CGEN_CAT3(a,b,c) CGEN_XCAT3 (a, b, c)
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#else
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#define CGEN_CAT3(a,b,c) a/**/b/**/c
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#endif
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#endif
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/* Prepend the cpu name, defined in cpu-opc.h, and _cgen_ to symbol S.
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The lack of spaces in the arg list is important for non-stdc systems.
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This file is included by <cpu>-opc.h.
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@ -37,7 +28,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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dependent portions will be declared as "unknown_cgen_foo". */
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#ifndef CGEN_SYM
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#define CGEN_SYM(s) CGEN_CAT3 (unknown,_cgen_,s)
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#define CGEN_SYM(s) CONCAT3 (unknown,_cgen_,s)
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#endif
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/* This file contains the static (unchanging) pieces and as much other stuff
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@ -235,10 +226,6 @@ extern cgen_print_fn * CGEN_SYM (print_handlers) [];
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It's a collection of the common elements needed to parse, insert, extract,
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and print each of them. */
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#ifndef CGEN_INSN_MAX_ATTRS
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#define CGEN_INSN_MAX_ATTRS 1
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#endif
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struct cgen_base
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{
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/* Indices into the handler tables.
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@ -357,10 +344,6 @@ typedef struct cgen_hw_entry
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const CGEN_HW_ENTRY * cgen_hw_lookup PARAMS ((const char *));
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#ifndef CGEN_KEYWORD_MAX_ATTRS
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#define CGEN_KEYWORD_MAX_ATTRS 1
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#endif
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/* This struct is used to describe things like register names, etc. */
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typedef struct cgen_keyword_entry
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@ -381,7 +364,10 @@ typedef struct cgen_keyword_entry
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/* ??? Moving this last should be done by treating keywords like insn lists
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and moving the `next' fields into a CGEN_KEYWORD_LIST struct. */
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/* FIXME: Not used yet. */
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CGEN_ATTR_TYPE (CGEN_KEYWORD_MAX_ATTRS) attrs;
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#ifndef CGEN_KEYWORD_NBOOL_ATTRS
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#define CGEN_KEYWORD_NBOOL_ATTRS 1
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#endif
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CGEN_ATTR_TYPE (CGEN_KEYWORD_NBOOL_ATTRS) attrs;
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/* Next name hash table entry. */
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struct cgen_keyword_entry *next_name;
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@ -484,10 +470,6 @@ enum cgen_mode {
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/* This struct defines each entry in the operand table. */
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#ifndef CGEN_OPERAND_MAX_ATTRS
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#define CGEN_OPERAND_MAX_ATTRS 1
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#endif
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typedef struct cgen_operand
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{
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/* Name as it appears in the syntax string. */
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@ -525,7 +507,10 @@ typedef struct cgen_operand
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array in that one architecture may have 1 nonbool attribute and another
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may have more. Having this last means the non-architecture specific code
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needn't care, now or tomorrow. */
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CGEN_ATTR_TYPE (CGEN_OPERAND_MAX_ATTRS) attrs;
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#ifndef CGEN_OPERAND_NBOOL_ATTRS
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#define CGEN_OPERAND_NBOOL_ATTRS 1
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#endif
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CGEN_ATTR_TYPE (CGEN_OPERAND_NBOOL_ATTRS) attrs;
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#define CGEN_OPERAND_ATTRS(operand) (&(operand)->attrs)
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} CGEN_OPERAND;
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@ -615,14 +600,21 @@ typedef struct
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However, we treat mnemonics as just another operand of the instruction.
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A value of 1 means "this is where the mnemonic appears". 1 isn't
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special other than it's a non-printable ASCII char. */
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#define CGEN_SYNTAX_MNEMONIC_P(ch) ((ch) == 1)
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#define CGEN_SYNTAX_MNEMONIC 1
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#define CGEN_SYNTAX_MNEMONIC_P(ch) ((ch) == CGEN_SYNTAX_MNEMONIC)
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/* Instruction formats.
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Instructions are grouped by format. Associated with an instruction is its
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format. Each opcode table entry contains a pointer into the format table.
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This cuts down on the size of the opcode table as there are relatively few
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formats compared with the number of instructions. */
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format. Each opcode table entry contains a format table entry.
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??? There is usually very few formats compared with the number of insns,
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so one can reduce the size of the opcode table by recording the format table
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as a separate entity. Given that we currently don't, format table entries
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are also distinguished by their operands. This increases the size of the
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table, but reduces the number of tables. It's all minutiae anyway so it
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doesn't really matter [at this point in time].
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??? Support for variable length ISA's is wip. */
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typedef struct
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{
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@ -633,10 +625,10 @@ typedef struct
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less than CGEN_BASE_INSN_BITSIZE. */
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unsigned char mask_length;
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/* Total length of instruction. */
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/* Total length of instruction, in bits. */
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unsigned char length;
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/* Mask to apply to the first BASE_LENGTH bits.
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/* Mask to apply to the first MASK_LENGTH bits.
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Each insn's value is stored with the insn.
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The first step in recognizing an insn for disassembly is
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(opcode & mask) == value. */
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@ -668,23 +660,19 @@ struct cgen_insn
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const char * mnemonic;
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#define CGEN_INSN_MNEMONIC(insn) ((insn)->mnemonic)
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/* Syntax string.
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For now this only points to CGEN_SYNTAX elements, but it can point
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to other things (e.g. something different for macros?). */
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const CGEN_SYNTAX * syntax;
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#define CGEN_INSN_SYNTAX(insn) ((CGEN_SYNTAX *) (insn)->syntax)
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/* Syntax string. */
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const CGEN_SYNTAX syntax;
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#define CGEN_INSN_SYNTAX(insn) (& (insn)->syntax)
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/* Format entry.
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For now this only points to CGEN_FORMAT elements, but it can point
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to other things (e.g. something different for macros?). */
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const CGEN_FORMAT * format;
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#define CGEN_INSN_MASK_BITSIZE(insn) (((CGEN_FORMAT *) (insn)->format)->mask_length)
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#define CGEN_INSN_BITSIZE(insn) (((CGEN_FORMAT *) (insn)->format)->length)
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/* Format entry. */
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const CGEN_FORMAT format;
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#define CGEN_INSN_MASK_BITSIZE(insn) ((insn)->format.mask_length)
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#define CGEN_INSN_BITSIZE(insn) ((insn)->format.length)
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/* Instruction opcode value. */
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unsigned int value;
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#define CGEN_INSN_VALUE(insn) ((insn)->value)
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#define CGEN_INSN_MASK(insn) (((CGEN_FORMAT *) (insn)->format)->mask)
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#define CGEN_INSN_MASK(insn) ((insn)->format.mask)
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/* Pointer to NULL entry terminated table of operands used,
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or NULL if none. */
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@ -696,7 +684,10 @@ struct cgen_insn
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architecture may have 1 nonbool attribute and another may have more.
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Having this last means the non-architecture specific code needn't
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care. */
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CGEN_ATTR_TYPE (CGEN_INSN_MAX_ATTRS) attrs;
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#ifndef CGEN_INSN_NBOOL_ATTRS
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#define CGEN_INSN_NBOOL_ATTRS 1
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#endif
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CGEN_ATTR_TYPE (CGEN_INSN_NBOOL_ATTRS) attrs;
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#define CGEN_INSN_ATTRS(insn) (&(insn)->attrs)
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/* Return value of attribute ATTR in INSN. */
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#define CGEN_INSN_ATTR(insn, attr) \
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