From 35389a9340b7840ebd62a4d95ca5d4fe4c2685a0 Mon Sep 17 00:00:00 2001 From: Doug Evans Date: Tue, 27 Jan 1998 22:08:19 +0000 Subject: * txvu.h (txvu_{opcode,operand}): New typedefs. (txvu_operand): Add opcode,operand,mods arguments consistently to each of the parse/insert/extract/print routines. --- include/opcode/ChangeLog | 6 ++++ include/opcode/txvu.h | 78 ++++++++++++++++++++++++++++-------------------- 2 files changed, 52 insertions(+), 32 deletions(-) (limited to 'include') diff --git a/include/opcode/ChangeLog b/include/opcode/ChangeLog index dc4a975..da6d1c2 100644 --- a/include/opcode/ChangeLog +++ b/include/opcode/ChangeLog @@ -1,4 +1,10 @@ start-sanitize-sky +Tue Jan 27 14:01:16 1998 Doug Evans + + * 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 * txvu.h (txvu_opcode): insert/extract/print take pointer to diff --git a/include/opcode/txvu.h b/include/opcode/txvu.h index e3b3b59..4817f81 100644 --- a/include/opcode/txvu.h +++ b/include/opcode/txvu.h @@ -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)); -- cgit v1.1