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(load_expression): Parenthesize operations in range checking, to avoid

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precedence questions.

(addr32): New static variable.
(md_parse_option): Set it for "-32addr".
(load_symbol_address): If addr32 is set, use ldl instead of ldq.
This commit is contained in:
Ken Raeburn
1994-02-07 21:12:03 +00:00
parent bf96913525
commit cf272f0244
1 changed files with 23 additions and 5 deletions
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28
gas/config/tc-alpha.c
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@ -87,6 +87,12 @@ unsigned long alpha_gprmask, alpha_fprmask;
/* Used for LITUSE relocations. */
static expressionS lituse_basereg, lituse_byteoff, lituse_jsr;
/* Address size: In OSF/1 1.3, an undocumented "-32addr" option will
cause all addresses to be treated as 32-bit values in memory. (The
in-register versions are all sign-extended to 64 bits, of course.)
Some other systems may want this option too. */
static int addr32;
/* Imported functions -- they should be defined in header files somewhere. */
extern segT subseg_get ();
extern PTR bfd_alloc_by_size_t ();
@ -713,10 +719,16 @@ load_symbol_address (reg, insn)
/* Overflow? */
as_fatal ("overflow in literal (.lita) table");
x = retval;
insn->opcode = (0xa4000000 /* ldq */
| (reg << SA)
| (base_register << SB)
| (x & 0xffff));
if (addr32)
insn->opcode = (0xa0000000 /* ldl */
| (reg << SA)
| (base_register << SB)
| (x & 0xffff));
else
insn->opcode = (0xa4000000 /* ldq */
| (reg << SA)
| (base_register << SB)
| (x & 0xffff));
note_gpreg (base_register);
}
@ -748,7 +760,7 @@ load_expression (reg, insn)
num_insns++;
{
valueT x = addend;
if (x & ~0x7fff != 0
if ((x & ~0x7fff) != 0
&& (x & ~0x7fff) + 0x8000 != 0)
{
as_bad ("assembler not prepared to handle constants >16 bits yet");
@ -1612,6 +1624,12 @@ md_parse_option (argP, cntP, vecP)
return 1;
}
#endif
if (!strcmp (*argP, "32addr"))
{
addr32 = 1;
*argP += 6;
return 1;
}
if (!strcmp (*argP, "nocpp"))
{
*argP += 5;