MC68HC908MR8 Datasheet, PDF (81/372 Pages) Motorola, Inc – Microcontrollers

Central Processor Unit (CPU)
Instruction Set Summary
Table 6-1. Instruction Set Summary (Sheet 3 of 8)
Source
Form
BNE rel
BPL rel
BRA rel
Operation
Branch if Not Equal
Branch if Plus
Branch Always
BRCLR n,opr,rel Branch if Bit n in M Clear
BRN rel
Branch Never
BRSET n,opr,rel Branch if Bit n in M Set
BSET n,opr
Set Bit n in M
BSR rel
Branch to Subroutine
CBEQ opr,rel
CBEQA #opr,rel
CBEQX #opr,rel
CBEQ opr,X+,rel
CBEQ X+,rel
CBEQ opr,SP,rel
Compare and Branch if Equal
CLC
Clear Carry Bit
CLI
CLR opr
CLRA
CLRX
CLRH
CLR opr,X
CLR ,X
CLR opr,SP
Clear Interrupt Mask
Clear
Description
Effect on CCR
VH I NZC
PC ← (PC) + 2 + rel ? (Z) = 0
PC ← (PC) + 2 + rel ? (N) = 0
PC ¨ (PC) + 2 + rel
– – – – – – REL
– – – – – – REL
– – – – – – REL
26 rr 3
2A rr 3
20 rr 3
PC ← (PC) + 3 + rel ? (Mn) = 0
DIR (b0) 01 dd rr 5
DIR (b1) 03 dd rr 5
DIR (b2) 05 dd rr 5
–
–
–
–
–↕
DIR (b3)
DIR (b4)
07 dd rr
09 dd rr
5
5
DIR (b5) 0B dd rr 5
DIR (b6) 0D dd rr 5
DIR (b7) 0F dd rr 5
PC ← (PC) + 2
– – – – – – REL
21 rr 3
PC ← (PC) + 3 + rel ? (Mn) = 1
DIR (b0) 00 dd rr 5
DIR (b1) 02 dd rr 5
DIR (b2) 04 dd rr 5
–
–
–
–
–↕
DIR (b3)
DIR (b4)
06 dd rr
08 dd rr
5
5
DIR (b5) 0A dd rr 5
DIR (b6) 0C dd rr 5
DIR (b7) 0E dd rr 5
Mn ← 1
DIR (b0) 10 dd 4
DIR (b1) 12 dd 4
DIR (b2) 14 dd 4
–
–
–
–
–
–
DIR (b3)
DIR (b4)
16 dd
18 dd
4
4
DIR (b5) 1A dd 4
DIR (b6) 1C dd 4
DIR (b7) 1E dd 4
PC ← (PC) + 2; push (PCL)
SP ← (SP) – 1; push (PCH)
SP ← (SP) – 1
PC ← (PC) + rel
– – – – – – REL
AD rr 4
PC ← (PC) + 3 + rel ? (A) – (M) = $00
PC ← (PC) + 3 + rel ? (A) – (M) = $00
PC ← (PC) + 3 + rel ? (X) – (M) = $00
PC ← (PC) + 3 + rel ? (A) – (M) = $00
PC ← (PC) + 2 + rel ? (A) – (M) = $00
PC ← (PC) + 4 + rel ? (A) – (M) = $00
DIR
IMM
–
–
–
–
–
–
IMM
IX1+
IX+
SP1
31 dd rr 5
41 ii rr 4
51 ii rr 4
61 ff rr 5
71 rr 4
9E61 ff rr 6
C←0
– – – – – 0 INH
98
1
I←0
– – 0 – – – INH
9A
2
M ← $00
A ← $00
X ← $00
H ← $00
M ← $00
M ← $00
M ← $00
DIR
INH
INH
0 – – 0 1 – INH
IX1
IX
SP1
3F dd 3
4F
1
5F
1
8C
1
6F ff
3
7F
2
9E6F ff
4
MC68HC908MR8 — Rev 4.1
Freescale Semiconductor
Central Processor Unit (CPU)
Technical Data
81