MC908JB16DWE Datasheet, PDF (86/332 Pages) Freescale Semiconductor, Inc – Microcontrollers

Central Processor Unit (CPU)
Table 6-1. Instruction Set Summary (Sheet 3 of 8)
Source
Form
Operation
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
Compare and Branch if Equal
CBEQ X+,rel
CBEQ opr,SP,rel
CLC
Clear Carry Bit
CLI
Clear Interrupt Mask
CLR opr
CLRA
CLRX
CLRH
CLR opr,X
CLR ,X
CLR opr,SP
Clear
Description
Effect on
CCR
VH I NZC
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
09
dd rr 5
dd rr 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
08
dd rr 5
dd rr 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
18
dd
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
DIR
PC ← (PC) + 3 + rel ? (A) – (M) = $00
IMM
PC ← (PC) + 3 + rel ? (X) – (M) = $00
PC ← (PC) + 3 + rel ? (A) – (M) = $00
–
–
–
–
–
–
IMM
IX1+
PC ← (PC) + 2 + rel ? (A) – (M) = $00
IX+
PC ← (PC) + 4 + rel ? (A) – (M) = $00
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
Technical Data
86
Central Processor Unit (CPU)
MC68HC908JB16 — Rev. 1.1
Freescale Semiconductor