Intel ITANIUM ARCHITECTURE - SOFTWARE DEVELOPERS MANUAL VOLUME 1 REV 2.3 Manual page 1631

RCL/RCR/ROL/ROR-—Rotate (Continued)
DEST  (DEST / 2) + (tempCF  2
tempCOUNT  tempCOUNT - 1;
OD;
IF COUNT = 1
THEN OF  MSB(DEST) XOR MSB  1(DEST);
ELSE OF is undefined;
FI;
(* RCL instruction operation *)
WHILE (tempCOUNT
DO
tempCF  MSB(DEST);
DEST  (DEST  2)  tempCF;
tempCOUNT  tempCOUNT - 1;
OD;
ELIHW;
CF  tempCF;
IF COUNT = 1
THEN OF  MSB(DEST) XOR CF;
ELSE OF is undefined;
FI;
(* RCR instruction operation *)
WHILE (tempCOUNT
DO
tempCF  LSB(SRC);
DEST  (DEST / 2) + (tempCF * 2
tempCOUNT  tempCOUNT - 1;
OD;
IF COUNT = 1
IF COUNT = 1
THEN OF  MSB(DEST) XOR MSB  1(DEST);
ELSE OF is undefined;
FI;
Flags Affected
The CF flag contains the value of the bit shifted into it. The OF flag is affected only for
single-bit rotates (see "Description" above); it is undefined for multi-bit rotates. The SF,
ZF, AF, and PF flags are not affected.
Additional Itanium System Environment Exceptions
Itanium Reg Faults NaT Register Consumption Abort.
Itanium Mem FaultsVHPT Data Fault, Nested TLB Fault, Data TLB Fault, Alternate Data
Volume 4: Base IA-32 Instruction Reference
SIZE
);

0)

0)
SIZE
);
TLB Fault, Data Page Not Present Fault, Data NaT Page Consumption
Abort, Data Key Miss Fault, Data Key Permission Fault, Data Access
Rights Fault, Data Access Bit Fault, Data Dirty Bit Fault
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