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Added new flag: V850_NOT_R0 to indicate that r0 is not a valid register for 

this operand.
This commit is contained in:
Nick Clifton 1997-08-22 17:36:15 +00:00
parent d87a154282
commit b9792954bb
2 changed files with 35 additions and 8 deletions
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8
include/opcode/ChangeLog
View File

@ -1,3 +1,11 @@
Fri Aug 22 10:38:29 1997 Nick Clifton <nickc@cygnus.com>
* v850.h (V850_NOT_R0): New flag.
Mon Aug 18 11:05:58 1997 Nick Clifton <nickc@cygnus.com>
* v850.h (struct v850_opcode): Remove flags field.
start-sanitize-v850 start-sanitize-v850
Wed Aug 13 18:45:48 1997 Nick Clifton <nickc@cygnus.com> Wed Aug 13 18:45:48 1997 Nick Clifton <nickc@cygnus.com>

35
include/opcode/v850.h
View File

@ -59,9 +59,11 @@ extern const int v850_num_opcodes;
struct v850_operand struct v850_operand
{ {
/* The number of bits in the operand. */ /* The number of bits in the operand. */
/* If this value is -1 then the operand's bits are in a discontinous distribution in the instruction. */
int bits; int bits;
/* How far the operand is left shifted in the instruction. */ /* (bits >= 0): How far the operand is left shifted in the instruction. */
/* (bits == -1): Bit mask of the bits in the operand. */
int shift; int shift;
/* Insertion function. This is used by the assembler. To insert an /* Insertion function. This is used by the assembler. To insert an
@ -80,17 +82,16 @@ struct v850_operand
string (the operand will be inserted in any case). If the string (the operand will be inserted in any case). If the
operand value is legal, *ERRMSG will be unchanged (most operands operand value is legal, *ERRMSG will be unchanged (most operands
can accept any value). */ can accept any value). */
unsigned long (*insert) PARAMS ((unsigned long instruction, long op, unsigned long (* insert) PARAMS ((unsigned long instruction, long op,
const char **errmsg)); const char ** errmsg));
/* Extraction function. This is used by the disassembler. To /* Extraction function. This is used by the disassembler. To
extract this operand type from an instruction, check this field. extract this operand type from an instruction, check this field.
If it is NULL, compute If it is NULL, compute
op = ((i) >> o->shift) & ((1 << o->bits) - 1); op = o->bits == -1 ? ((i) & o->shift) : ((i) >> o->shift) & ((1 << o->bits) - 1);
if ((o->flags & PPC_OPERAND_SIGNED) != 0 if (o->flags & V850_OPERAND_SIGNED)
&& (op & (1 << (o->bits - 1))) != 0) op = (op << (32 - o->bits)) >> (32 - o->bits);
op -= 1 << o->bits;
(i is the instruction, o is a pointer to this structure, and op (i is the instruction, o is a pointer to this structure, and op
is the result; this assumes twos complement arithmetic). is the result; this assumes twos complement arithmetic).
@ -100,7 +101,7 @@ struct v850_operand
non-zero if this operand type can not actually be extracted from non-zero if this operand type can not actually be extracted from
this operand (i.e., the instruction does not match). If the this operand (i.e., the instruction does not match). If the
operand is valid, *INVALID will not be changed. */ operand is valid, *INVALID will not be changed. */
long (*extract) PARAMS ((unsigned long instruction, int *invalid)); unsigned long (* extract) PARAMS ((unsigned long instruction, int * invalid));
/* One bit syntax flags. */ /* One bit syntax flags. */
int flags; int flags;
@ -136,4 +137,22 @@ extern const struct v850_operand v850_operands[];
promoted operands on the mn10300?) */ promoted operands on the mn10300?) */
#define V850_OPERAND_RELAX 0x40 #define V850_OPERAND_RELAX 0x40
/* Whether this argument is a N-bit offset for a sst.{h,w}/sld.{h,w,hu}
instruction, and the addend needs to be shifted right one bit */
#define V850_OPERAND_ADJUST_SHORT_MEMORY 0x80
/* The register specified must not be r0 */
#define V850_NOT_R0 0x100
/* start-sanitize-v850e */
/* push/pop type instruction, V850E specific. */
#define V850E_PUSH_POP 0x200
/* 16 bit immediate follows instruction, V850E specific. */
#define V850E_IMMEDIATE16 0x400
/* 32 bit immediate follows instruction, V850E specific. */
#define V850E_IMMEDIATE32 0x800
/* end-sanitize-v850e */
#endif /* V850_H */ #endif /* V850_H */