Samsung YP-P10 User Manual download pdf (Page 187)

S3C2440A RISC MICROPROCESSOR THUMB INSTRUCTION SET

INSTRUCTION CYCLE TIMES

This instruction format does not have an equivalent ARM instruction.

Table 4-20. The BL Instruction

L THUMB assembler ARM equivalent Description

0 BL label none LR := PC + OffsetHigh << 12

1 temp := next instruction address

PC := LR + OffsetLow << 1

LR := temp | 1

BL faraway ; Unconditionally Branch to 'faraway'

next • and place following instruction

• address, ie "next", in R14,the Link register and set bit 0 of

Note that the THUMB opcodes will contain the number of

halfwords to offset.

faraway • ; Must be Half-word aligned.

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