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* txvu.h (txvu_{opcode,operand}): New typedefs.

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(txvu_operand): Add opcode,operand,mods arguments consistently to
	each of the parse/insert/extract/print routines.
This commit is contained in:
Doug Evans 1998-01-27 22:08:19 +00:00
parent 38a8f434a8
commit 35389a9340
2 changed files with 52 additions and 32 deletions
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6
include/opcode/ChangeLog
View file

@ -1,4 +1,10 @@
start-sanitize-sky
Tue Jan 27 14:01:16 1998 Doug Evans <devans@seba.cygnus.com>
* txvu.h (txvu_{opcode,operand}): New typedefs.
(txvu_operand): Add opcode,operand,mods arguments consistently to
each of the parse/insert/extract/print routines.
Mon Jan 26 16:19:01 1998 Doug Evans <devans@seba.cygnus.com>
* txvu.h (txvu_opcode): insert/extract/print take pointer to

78
include/opcode/txvu.h
View file

@ -25,7 +25,7 @@ typedef unsigned int TXVU_INSN;
/* Maximum number of operands and syntax chars an instruction can have. */
#define TXVU_MAX_OPERANDS 16
struct txvu_opcode {
typedef struct txvu_opcode {
char *mnemonic;
/* The value stored is 128 + operand number.
This allows ASCII chars to go here as well. */
@ -65,11 +65,11 @@ struct txvu_opcode {
underlying mechanism. */
#define TXVU_OPCODE_NEXT_ASM(op) ((op)->next_asm)
#define TXVU_OPCODE_NEXT_DIS(op) ((op)->next_dis)
};
} txvu_opcode;
/* The operand table. */
struct txvu_operand {
typedef struct txvu_operand {
/* The number of bits in the operand (may be unused for a modifier). */
unsigned char bits;
@ -132,9 +132,12 @@ struct txvu_operand {
#define TXVU_MOD_P(X) ((X) & TXVU_MOD_BITS)
/* Parse function. This is used by the assembler.
MODS is a list of modifiers preceding the operand in the syntax string.
If the operand cannot be parsed an error message is stored in ERRMSG,
otherwise ERRMSG is unchanged. */
long (*parse) PARAMS ((char **str, const char **errmsg));
long (*parse) PARAMS ((const struct txvu_opcode *opcode,
const struct txvu_operand *operand,
int mods, char **str, const char **errmsg));
/* Insertion function. This is used by the assembler. To insert an
operand value into an instruction, check this field.
@ -148,14 +151,16 @@ struct txvu_operand {
If this field is not NULL, then simply call it with the
instruction and the operand value. It will overwrite the appropriate
bits of the instruction with the operand's value.
MODS is a list of modifiers preceding the operand in the syntax string.
If the ERRMSG argument is not NULL, then if the operand value is illegal,
*ERRMSG will be set to a warning string (the operand will be inserted in
any case). If the operand value is legal, *ERRMSG will be unchanged.
OPCODE may be NULL, in which case the value isn't known. This happens
when applying fixups. */
REG is non-NULL when inserting a register value. */
void (*insert) PARAMS ((TXVU_INSN *insn,
const struct txvu_operand *operand, int mods,
void (*insert) PARAMS ((const struct txvu_opcode *opcode,
const struct txvu_operand *operand,
int mods, TXVU_INSN *insn,
long value, const char **errmsg));
/* Extraction function. This is used by the disassembler. To
@ -175,20 +180,23 @@ struct txvu_operand {
non-zero if this operand type can not actually be extracted from
this operand (i.e., the instruction does not match). If the
operand is valid, *INVALID will not be changed.
MODS is a list of modifiers preceding the operand in the syntax string.
INSN is a pointer to one or two `TXVU_INSN's. The first element is
the insn, the second is an immediate constant if present.
FIXME: just thrown in here for now.
*/
long (*extract) PARAMS ((TXVU_INSN *insn,
long (*extract) PARAMS ((const struct txvu_opcode *opcode,
const struct txvu_operand *operand,
int mods, int *pinvalid));
int mods, TXVU_INSN *insn, int *pinvalid));
/* Print function. This is used by the disassembler. */
void (*print) PARAMS ((disassemble_info *info, TXVU_INSN *insn,
long value));
};
void (*print) PARAMS ((const struct txvu_opcode *opcode,
const struct txvu_operand *operand,
int mods, TXVU_INSN *insn,
disassemble_info *info, long value));
} txvu_operand;
/* Given an operand entry, return the table index. */
#define TXVU_OPERAND_INDEX(op) ((op) - 128)
@ -213,16 +221,16 @@ struct txvu_operand {
#define TXVU_SDEST_Z 2
#define TXVU_SDEST_W 3
extern const struct txvu_operand txvu_operands[];
extern /*const*/ struct txvu_opcode txvu_upper_opcodes[];
extern /*const*/ struct txvu_opcode txvu_lower_opcodes[];
extern const txvu_operand txvu_operands[];
extern /*const*/ txvu_opcode txvu_upper_opcodes[];
extern /*const*/ txvu_opcode txvu_lower_opcodes[];
extern const int txvu_upper_opcodes_count;
extern const int txvu_lower_opcodes_count;
const struct txvu_opcode *txvu_upper_opcode_lookup_asm PARAMS ((const char *));
const struct txvu_opcode *txvu_lower_opcode_lookup_asm PARAMS ((const char *));
const struct txvu_opcode *txvu_upper_opcode_lookup_dis PARAMS ((unsigned int));
const struct txvu_opcode *txvu_lower_opcode_lookup_dis PARAMS ((unsigned int));
const txvu_opcode *txvu_upper_opcode_lookup_asm PARAMS ((const char *));
const txvu_opcode *txvu_lower_opcode_lookup_asm PARAMS ((const char *));
const txvu_opcode *txvu_upper_opcode_lookup_dis PARAMS ((unsigned int));
const txvu_opcode *txvu_lower_opcode_lookup_dis PARAMS ((unsigned int));
/* PKE support. */
@ -270,11 +278,17 @@ const struct txvu_opcode *txvu_lower_opcode_lookup_dis PARAMS ((unsigned int));
#define PKE_UNPACK_V4_8 14
#define PKE_UNPACK_V4_5 15
extern const struct txvu_operand pke_operands[];
extern /*const*/ struct txvu_opcode pke_opcodes[];
extern const txvu_operand pke_operands[];
extern /*const*/ txvu_opcode pke_opcodes[];
extern const int pke_opcodes_count;
const struct txvu_opcode *pke_opcode_lookup_asm PARAMS ((const char *));
const struct txvu_opcode *pke_opcode_lookup_dis PARAMS ((unsigned int));
const txvu_opcode *pke_opcode_lookup_asm PARAMS ((const char *));
const txvu_opcode *pke_opcode_lookup_dis PARAMS ((unsigned int));
/* Return non-zero if the just parsed pke insn has variable length. */
int pke_varlen_p PARAMS ((void));
/* Return length, in 32 bit words, of just parsed pke insn,
or 0 if unknown. */
int pke_len PARAMS ((void));
/* DMA support. */
@ -284,11 +298,11 @@ const struct txvu_opcode *pke_opcode_lookup_dis PARAMS ((unsigned int));
#define DMA_FLAG_INT 4
#define DMA_FLAG_SPR 8
extern const struct txvu_operand dma_operands[];
extern /*const*/ struct txvu_opcode dma_opcodes[];
extern const txvu_operand dma_operands[];
extern /*const*/ txvu_opcode dma_opcodes[];
extern const int dma_opcodes_count;
const struct txvu_opcode *dma_opcode_lookup_asm PARAMS ((const char *));
const struct txvu_opcode *dma_opcode_lookup_dis PARAMS ((unsigned int));
const txvu_opcode *dma_opcode_lookup_asm PARAMS ((const char *));
const txvu_opcode *dma_opcode_lookup_dis PARAMS ((unsigned int));
/* GPUIF support. */
@ -310,11 +324,11 @@ typedef enum {
GPUIF_REG_NOP = 15
} gpuif_reg;
extern const struct txvu_operand gpuif_operands[];
extern /*const*/ struct txvu_opcode gpuif_opcodes[];
extern const txvu_operand gpuif_operands[];
extern /*const*/ txvu_opcode gpuif_opcodes[];
extern const int gpuif_opcodes_count;
const struct txvu_opcode *gpuif_opcode_lookup_asm PARAMS ((const char *));
const struct txvu_opcode *gpuif_opcode_lookup_dis PARAMS ((unsigned int));
const txvu_opcode *gpuif_opcode_lookup_asm PARAMS ((const char *));
const txvu_opcode *gpuif_opcode_lookup_dis PARAMS ((unsigned int));
/* Utility fns in txvu-opc.c. */
void txvu_opcode_init_tables PARAMS ((int));