Rev. 1.50, 10/04, page 314 of 448
10.1.65 SHLL
(Shift
Logical
Left ): Shift Instruction
Format
Operation
Instruction Code
Cycle
T Bit
SHLL Rn
T
←
Rn
←
0
0100nnnn00000000
1 MSB
Description:
This instruction logically shifts the contents of general register Rn one bit to the left,
and stores the result in Rn. The bit shifted out of the operand is transferred to the T bit.
MSB
LSB
0
SHLL
T
Notes:
None
Operation:
SHLL(long n) /* SHLL Rn (Same as SHAL) */
{
if ((R[n]&0x80000000)==0) T = 0;
else T = 1;
R[n] <<= 1;
PC += 2;
}
Example:
SHLL
R0
;
Before execution R0 = H'80000001, T = 0
;
After execution
R0 = H'00000002, T = 1
Summary of Contents for SuperH SH-4A
Page 2: ...Rev 1 50 10 04 page ii of xx ...
Page 8: ...Rev 1 50 10 04 page viii of xx ...
Page 116: ...Rev 1 50 10 04 page 96 of 448 ...
Page 178: ...Rev 1 50 10 04 page 158 of 448 ...
Page 206: ...Rev 1 50 10 04 page 186 of 448 ...
Page 231: ...Rev 1 50 10 04 page 211 of 448 Possible Exceptions Slot illegal instruction exception ...
Page 235: ...Rev 1 50 10 04 page 215 of 448 Possible Exceptions Slot illegal instruction exception ...
Page 238: ...Rev 1 50 10 04 page 218 of 448 Possible Exceptions Slot illegal instruction exception ...
Page 408: ...Rev 1 50 10 04 page 388 of 448 Possible Exceptions Inexact Not generated when FPSCR PR 1 ...
Page 446: ...Rev 1 50 10 04 page 426 of 448 ...
Page 468: ...Rev 1 50 10 04 page 448 of 448 ...
Page 471: ......
Page 472: ...SH 4A Software Manual ...