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

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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
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@ -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
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
{
/* 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;
/* 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;
/* 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
operand value is legal, *ERRMSG will be unchanged (most operands
can accept any value). */
unsigned long (*insert) PARAMS ((unsigned long instruction, long op,
const char **errmsg));
unsigned long (* insert) PARAMS ((unsigned long instruction, long op,
const char ** errmsg));
/* Extraction function. This is used by the disassembler. To
extract this operand type from an instruction, check this field.
If it is NULL, compute
op = ((i) >> o->shift) & ((1 << o->bits) - 1);
if ((o->flags & PPC_OPERAND_SIGNED) != 0
&& (op & (1 << (o->bits - 1))) != 0)
op -= 1 << o->bits;
op = o->bits == -1 ? ((i) & o->shift) : ((i) >> o->shift) & ((1 << o->bits) - 1);
if (o->flags & V850_OPERAND_SIGNED)
op = (op << (32 - o->bits)) >> (32 - o->bits);
(i is the instruction, o is a pointer to this structure, and op
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
this operand (i.e., the instruction does not match). If the
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. */
int flags;
@ -136,4 +137,22 @@ extern const struct v850_operand v850_operands[];
promoted operands on the mn10300?) */
#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 */