MC68HC16Z1CPV16 Datasheet, PDF (91/500 Pages) Freescale Semiconductor, Inc – Symbols and Operators, CPU16 Register Mnemonics

Freescale Semiconductor, Inc.
4.8 Comparison of CPU16 and M68HC11 CPU Instruction Sets
Most M68HC11 CPU instructions are a source-code compatible subset of the CPU16
instruction set. However, certain M68HC11 CPU instructions have been replaced by
functionally equivalent CPU16 instructions, and some CPU16 instructions with the
same mnemonics as M68HC11 CPU instructions operate differently.
Table 4-4 shows the M68HC11 CPU instructions that either have been replaced by
CPU16 instructions or that operate differently on the CPU16. Replacement instruc-
tions are not identical to M68HC11 CPU instructions. M68HC11 code must be altered
to establish proper preconditions.
All CPU16 instruction execution times differ from those of the M68HC11. Transporting
M68HC11 Code to M68HC16 Devices, (M68HC16PN01/D), contains detailed infor-
mation about differences between the two instruction sets. Refer to the CPU16 Refer-
ence Manual (CPU16RM/AD) for further details about CPU operations.
M68HC16 Z SERIES
USER’S MANUAL
CENTRAL PROCESSING UNIT
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