HCS12 datasheet(92/452 Pages) FREESCALE

92 / 452 page

S12CPUV2 Reference Manual, Rev. 4.0

Freescale Semiconductor

abc — Any one legal register designator for accumulators A or

B or the CCR

abcdxys — Any one legal register designator for accumulators A or

B, the CCR, the double accumulator D, index registers X

or Y, or the SP. Some assemblers may accept t2, T2, t3,

or T3 codes in certain cases of transfer and exchange

instructions, but these forms are intended for Freescale

use only.

abd — Any one legal register designator for accumulators A or

B or the double accumulator D

abdxys — Any one legal register designator for accumulators A or

B, the double accumulator D, index register X or Y, or the

dxys — Any one legal register designation for the double

accumulator D, index registers X or Y, or the SP

msk8 — Any label or expression that evaluates to an 8-bit value.

Some assemblers require a # symbol before this value.

opr8i — Any label or expression that evaluates to an 8-bit

immediate value

opr16i — Any label or expression that evaluates to a 16-bit

immediate value

opr8a — Any label or expression that evaluates to an 8-bit value.

The instruction treats this 8-bit value as the low-order 8

bits of an address in the direct page of the 64-Kbyte

address space ($00xx).

opr16a — Any label or expression that evaluates to a 16-bit value.

The instruction treats this value as an address in the

64-Kbyte address space.

HCS12 数据表(PDF) 92 Page - Freescale Semiconductor, Inc