Samsung S3C2440A - Manual (Page 127)

THUMB INSTRUCTION SET S3C2440A RISC MICROPROCESSOR
4-6
INSTRUCTION CYCLE TIMES
All instructions in this format have an equivalent ARM instruction as shown in Table 4-2. The instruction cycle
times for the THUMB instruction are identical to that of the equivalent ARM instruction.
EXAMPLES
LSR R2, R5, #27 ; Logical shift right the contents of R5 by 27 and store the
result in R2.Set condition codes on the result.