Samsung KS57C2308 Manual page 109

KS57C2308/P2308/C2316/P2316
BOR
— Bit Logical OR
BOR C,src.b
Operation: Operand
C,mema.b
C,memb.@L
C,@H+DA.b
Description: The specified bit of the source is logically ORed with the carry flag bit value. The value of the
source is unaffected.
Operand
C,mema.b
C,memb.@L
C,@H+DA.b
*
mema.b
Examples: 1. The carry flag is logically ORed with the P1.0 value:
RCF
BOR
2. The P1 address is FF1H and register L contains the value 9H (1001B). The address
(memb.7–2) is 111100B and (L.3–2) = 10B. The resulting address is 11110010B or FF2H,
specifying P2. The bit value for the BOR instruction, (L.1–0) is 01B which specifies bit 1.
Therefore, P1.@L = P2.1:
LD
BOR
Operation Summary
Logical-OR carry with specified memory bit
Binary Code
* 1 1 1
1 1 1
0 1 0
1 1 1
0 0 b1 b0
Second Byte
1 0 b1 b0
1 1 b1 b0
C,P1.0
L,#9H
C,P1.@L
1 0 1 1 0
1 0 1 1 0
0 a5 a4 a3 a2
1 0 1 1 0
a3 a2 a1 a0
a3 a2 a1 a0 FB0H–FBFH
a3 a2 a1 a0 FF0H–FFFH
; C "0"
; If P1.0 = "1", then C
; P1.@L is specified as P2.1; C OR P2.1
SAM47 INSTRUCTION SET
Bytes
2
2
2
Operation Notation
C C OR mema.b
C C OR [memb.7–2 + L.3–2].
[L.1–0]
C C OR [H + DA.3–0].b
Bit Addresses
"1"; if P1.0 = "0", then C
Cycles
2
2
2
"0"
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