Samsung S3C2440A - Manual (Page 148)

S3C2440A RISC MICROPROCESSOR THUMB INSTRUCTION SET
4-27
INSTRUCTION CYCLE TIMES
All instructions in this format have an equivalent ARM instruction as shown in Table 4-12. The instruction cycle
times for the THUMB instruction are identical to that of the equivalent ARM instruction.
EXAMPLES
STR R4, [SP,#492] ; Store the contents of R4 at the address
formed by adding 492 to SP (R13).Note that the THUMB
opcode will contain 123 as the Word8 value.