HCS08 datasheet(120/290 Pages) MOTOROLA

120 / 290 page

Central Processor Unit (CPU)

MC9S08GB/GT

120

MOTOROLA

Source form

Everything in the source forms columns, except expressions in italic characters, is literal information

which must appear in the assembly source file exactly as shown. The initial 3- to 5-letter mnemonic is

always a literal expression. All commas, pound signs (#), parentheses, and plus signs (+) are literal

characters.

—

Any label or expression that evaluates to a single integer in the range 0–7

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.

oprx8

—

Any label or expression that evaluates to an unsigned 8-bit value, used for

indexed addressing

oprx16

—

Any label or expression that evaluates to a 16-bit value. Since the HCS08 has

a 16-bit address bus, this can be either a signed or an unsigned value.

rel

—

Any label or expression that refers to an address that is within –128 to

+127

locations from the next address after the last byte of object code for the current

instruction. The assembler will calculate the 8-bit signed offset and include it in

the object code for this instruction.

Address modes

INH

Inherent (no operands)

IMM

8-bit or 16-bit immediate

DIR

8-bit direct

EXT

16-bit extended

16-bit indexed no offset

IX+

16-bit indexed no offset, post increment (CBEQ and MOV only)

IX1

16-bit indexed with 8-bit offset from H:X

IX1+

16-bit indexed with 8-bit offset, post increment

(CBEQ only)

IX2

16-bit indexed with 16-bit offset from H:X

REL

8-bit relative offset

SP1

Stack pointer with 8-bit offset

SP2

Stack pointer with 16-bit offset

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