Intel Itanium 9150M, Manual

Page: 61 / 420

3:52 Volume 3: Instruction Reference
dep
Operation: if (PR[ qp ]) {
check_target_register( r
1
);
if (imm_form) {
tmp_src = (merge_form ? sign_ext( imm
1
,1) : sign_ext( imm
8
, 8));
tmp_nat = merge_form ? GR[ r
3
].nat : 0;
tmp_len = len
6
;
} else { // register_form
tmp_src = GR[ r
2
];
tmp_nat = (merge_form ? GR[ r
3
].nat : 0) || GR[ r
2
].nat;
tmp_len = merge_form ? len
4
: len
6
;
}
if (
pos
6
+ tmp_len u> 64)
tmp_len = 64 - pos
6
;
if (merge_form)
GR[ r
1
] = GR[ r
3
];
else // zero_form
GR[ r
1
] = 0;
GR[ r
1
]{( pos
6
+ tmp_len - 1): pos
6
} = tmp_src{(tmp_len - 1):0};
GR[ r
1
].nat = tmp_nat;
}
Interruptions:
Illegal Operation fault