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cell: additional 'offset' checking in spe_lqd(), spe_stqd()

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This commit is contained in:
Brian Paul 2008-10-10 14:44:52 -06:00
parent 78c67a726f
commit f42ef6f39d
1 changed files with 14 additions and 4 deletions
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18
src/gallium/auxiliary/rtasm/rtasm_ppc_spe.c
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@ -552,14 +552,19 @@ spe_comment(struct spe_function *p, int rel_indent, const char *s)
/**
* Load quad word.
* NOTE: imm is in bytes and the least significant 4 bits must be zero!
* NOTE: offset is in bytes and the least significant 4 bits must be zero!
*/
void spe_lqd(struct spe_function *p, unsigned rT, unsigned rA, int offset)
{
const boolean pSave = p->print;
p->print = FALSE;
/* offset must be a multiple of 16 */
assert(offset % 16 == 0);
/* offset must fit in 10-bit signed int field, after shifting */
assert((offset >> 4) <= 511);
assert((offset >> 4) >= -512);
p->print = FALSE;
emit_RI10(p, 0x034, rT, rA, offset >> 4, "spe_lqd");
p->print = pSave;
@ -572,14 +577,19 @@ void spe_lqd(struct spe_function *p, unsigned rT, unsigned rA, int offset)
/**
* Store quad word.
* NOTE: imm is in bytes and the least significant 4 bits must be zero!
* NOTE: offset is in bytes and the least significant 4 bits must be zero!
*/
void spe_stqd(struct spe_function *p, unsigned rT, unsigned rA, int offset)
{
const boolean pSave = p->print;
p->print = FALSE;
/* offset must be a multiple of 16 */
assert(offset % 16 == 0);
/* offset must fit in 10-bit signed int field, after shifting */
assert((offset >> 4) <= 511);
assert((offset >> 4) >= -512);
p->print = FALSE;
emit_RI10(p, 0x024, rT, rA, offset >> 4, "spe_stqd");
p->print = pSave;