HCS12 datasheet(90/452 Pages) FREESCALE

90 / 452 page

S12CPUV2 Reference Manual, Rev. 4.0

Freescale Semiconductor

6.4 Object Code Notation

The digits 0 to 9 and the uppercase letters A to F are used to express

hexadecimal values. Pairs of lowercase letters represent the 8-bit values as

described here.

— 8-bit direct address $0000 to $00FF; high byte

assumed to be $00

— High-order byte of a 16-bit constant offset for indexed

addressing

— Exchange/transfer post-byte

— Low-order eight bits of a 9-bit signed constant offset

for indexed addressing, or low-order byte of a 16-bit

constant offset for indexed addressing

— High-order byte of a 16-bit extended address

— 8-bit immediate data value

— High-order byte of a 16-bit immediate data value

— Low-order byte of a 16-bit immediate data value

— Loop primitive (DBNE) post-byte

— Low-order byte of a 16-bit extended address

— 8-bit immediate mask value for bit manipulation

instructions; set bits indicate bits to be affected

— Program overlay page (bank) number used in CALL

instruction

— High-order byte of a 16-bit relative offset for long

branches

— Trap number $30–$39 or $40–$FF

— Signed relative offset $80 (–128) to $7F (+127)

offset relative to the byte following the relative offset

byte, or low-order byte of a 16-bit relative offset for

long branches

— Indexed addressing post-byte

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