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S3C72G9 Datasheet(PDF) 36 Page - Samsung semiconductor |
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S3C72G9 Datasheet(HTML) 36 Page - Samsung semiconductor |
36 / 96 page ![]() %*+) BOR C,src.b Operation: Operand Operation Summary Bytes Cycles C,mema.b Logical-OR carry with specified memory bit 2 2 C,memb.@L 2 2 C,@H+DA.b 2 2 Description: The specified bit of the source is logically ORed with the carry flag bit value. The value of the source is unaffected. Operand Binary Code Operation Notation C,mema.b 1 1 1 1 0 1 1 0 C ← C OR mema.b C,memb.@L 1 1 1 1 0 1 1 0 C ← C OR [memb.7-2 + L.3-2]. [L.1-0] 0 1 0 0 a5 a4 a3 a2 C,@H+DA.b 1 1 1 1 0 1 1 0 C ← C OR [H + DA.3-0].b 0 0 b1 b0 a3 a2 a1 a0 Second Byte Bit Addresses mema.b 1 0 b1 b0 a3 a2 a1 a0 FB0H-FBFH 1 1 b1 b0 a3 a2 a1 a0 FF0H-FFFH Examples: 1. The carry flag is logically ORed with the P1.0 value: RCF ; C ← "0" BOR C,P1.0 ; If P1.0 = "1", then C ← "1"; if P1.0 = "0", then C ← "0" 2. The P1 address is FF1H and register L contains the value 1H (0001B). The address (memb.7- 2) is 111100B and (L.3-2) = 00B. The resulting address is 11110000B or FF0H, specifying P0. The bit value for the BOR instruction, (L.1-0) is 01B which specifies bit 1. Therefore, P1.@L = P0.1: LD L,#1H BOR C,P1.@L ; P1.@L is specified as P0.1; C OR P0.1 |
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