fchkf Operation Font Conventions
if (PR[qp]) {
switch (sf) {
case ‘s0':
tmp_flags = AR[FPSR].sf0.flags;
break;
case ‘s1':
tmp_flags = AR[FPSR].sf1.flags;
break;
case ‘s2':
tmp_flags = AR[FPSR].sf2.flags;
break;
case ‘s3':
tmp_flags = AR[FPSR].sf3.flags;
break;
}
if ((tmp_flags & ~AR[FPSR].traps) || (tmp_flags & ~AR[FPSR].sf0.flags)) {
if (check_branch_implemented(FCHKF)) {
taken_branch = 1;
IP = IP + sign_ext((imm21 << 4), 25);
if ((PSR.it && unimplemented_virtual_address(IP))
|| (!PSR.it && unimplemented_physical_address(IP)))
unimplemented_instruction_address_trap(0, IP);
if (PSR.tb)
taken_branch_trap();
} else
speculation_fault(FCHKF, zero_ext(imm21, 21));
}
}