HCS12 datasheet(139/452 Pages) FREESCALE

139 / 452 page

S12CPUV2 Reference Manual, Rev. 4.0

Freescale Semiconductor

139

Operation:

If (M)

• (Mask) = 0, then branch

Description:

Performs a bitwise logical AND of the inverse of memory location M and the

mask supplied with the instruction, then branches if and only if all bits with

a value of 1 in the mask byte correspond to bits with a value of one in the

tested byte. Mask operands can be located at PC

+ 1, PC + 2, or PC + 4,

depending on addressing mode. The branch offset is referenced to the next

address after the relative offset (rr) which is the last byte of the instruction

object code.

See 3.8 Relative Addressing Mode for details of branch execution.

BRSET

Branch if Bits Set

BRSET

CCR Details:

HIN

––––––––

Source Form

Address

Mode(1)

Object Code

Access Detail

HCS12

M68HC12

BRSET opr8a, msk8, rel8

BRSET opr16a, msk8, rel8

BRSET oprx0_xysp, msk8, rel8

BRSET oprx9,xysp, msk8, rel8

BRSET oprx16,xysp, msk8, rel8

DIR

EXT

IDX

IDX1

IDX2

4E dd mm rr

1E hh ll mm rr

0E xb mm rr

0E xb ff mm rr

0E xb ee ff mm rr

rPPP

rfPPP

rPPP

rfPPP

PrfPPP

rPPP

rfPPP

rPPP

rffPPP

frPffPPP

1. Indirect forms of indexed addressing cannot be used with this instruction.

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