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* config/tc-d30v.c (check_range): Allow signed or unsigned 32-bit

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quantities.  Correct right shift sign extension.
        (build_insn): Make `number' unsigned long.  Mask top 6 bits of
        32-bit value when shifting into place.
This commit is contained in:
Richard Henderson 2000-04-02 08:24:54 +00:00
parent 921615346f
commit bf80011a5b
2 changed files with 26 additions and 15 deletions
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7
gas/ChangeLog
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@ -1,3 +1,10 @@
2000-04-02 Richard Henderson <rth@cygnus.com>
* config/tc-d30v.c (check_range): Allow signed or unsigned 32-bit
quantities. Correct right shift sign extension.
(build_insn): Make `number' unsigned long. Mask top 6 bits of
32-bit value when shifting into place.
2000-04-01 Ian Lance Taylor <ian@zembu.com>
* app.c: Add ATTRIBUTE_UNUSED as needed.

34
gas/config/tc-d30v.c
View file

@ -241,11 +241,19 @@ check_range (num, bits, flags)
int flags;
{
long min, max;
int retval=0;
/* don't bother checking 32-bit values */
if (bits == 32 && sizeof(unsigned long) * CHAR_BIT == 32)
return 0;
/* Don't bother checking 32-bit values. */
if (bits == 32)
{
if (sizeof(unsigned long) * CHAR_BIT == 32)
return 0;
/* We don't record signed or unsigned for 32-bit quantities.
Allow either. */
min = -((unsigned long)1 << (bits - 1));
max = ((unsigned long)1 << bits) - 1;
return (long)num < min || (long)num > max;
}
if (flags & OPERAND_SHIFT)
{
@ -254,7 +262,7 @@ check_range (num, bits, flags)
if (flags & OPERAND_SIGNED)
num = (unsigned long) ( (long) num >= 0)
? ( ((long) num) >> 3 )
: ( (num >> 3) | ((unsigned long)-1 << (32 - 3)) );
: ( (num >> 3) | ~(~(unsigned long)0 >> 3) );
else
num >>= 3;
}
@ -263,18 +271,14 @@ check_range (num, bits, flags)
{
max = ((unsigned long)1 << (bits - 1)) - 1;
min = - ((unsigned long)1 << (bits - 1));
if (((long)num > max) || ((long)num < min))
retval = 1;
return (long)num > max || (long)num < min;
}
else
{
max = ((unsigned long)1 << bits) - 1;
min = 0;
if ((num > max) || (num < min))
retval = 1;
return num > max || num < min;
}
return retval;
}
@ -578,7 +582,7 @@ build_insn (opcode, opers)
expressionS *opers;
{
int i, length, bits, shift, flags;
unsigned int number, id=0;
unsigned long number, id=0;
long long insn;
struct d30v_opcode *op = opcode->op;
struct d30v_format *form = opcode->form;
@ -653,10 +657,10 @@ build_insn (opcode, opers)
if (bits == 32)
{
/* it's a LONG instruction */
insn |= (number >> 26); /* top 6 bits */
insn |= ((number & 0xffffffff) >> 26); /* top 6 bits */
insn <<= 32; /* shift the first word over */
insn |= ((number & 0x03FC0000) << 2); /* next 8 bits */
insn |= number & 0x0003FFFF; /* bottom 18 bits */
insn |= ((number & 0x03FC0000) << 2); /* next 8 bits */
insn |= number & 0x0003FFFF; /* bottom 18 bits */
}
else
insn |= number << shift;