Intel Itanium 9150M, Manual

Page: 153 / 420

3:144 Volume 3: Instruction Reference
getf
Operation: if (PR[ qp ]) {
check_target_register( r
1
);
if (tmp_isrcode = fp_reg_disabled( f
2
, 0, 0, 0))
disabled_fp_register_fault(tmp_isrcode, 0);
if (single_form) {
GR[ r
1
]{31:0} = fp_fr_to_mem_format(FR[ f
2
], 4, 0);
GR[ r
1
]{63:32} = 0;
} else if (double_form) {
GR[ r
1
] = fp_fr_to_mem_format(FR[ f
2
], 8, 0);
} else if (exponent_form) {
GR[ r
1
]{63:18} = 0;
GR[ r
1
]{16:0} = FR[ f
2
].exponent;
GR[ r
1
]{17} = FR[ f
2
].sign;
} else // significand_form
GR[ r
1
] = FR[ f
2
].significand;
if (fp_is_natval(FR[ f
2
]))
GR[ r
1
].nat = 1;
else
GR[ r
1
].nat = 0;
}
Interruptions:
Illegal Operation fault Disabled Floating-point Register fault