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Chapter 3

Chapter 3. Program Control Group. T True None F False None HI High C+Z=0 LS Lower or Same C+Z=1 CC Carry Clear C=0 CS Carry Set C=1 NE Not Equal Z=0 EQ Equal Z=1 VC Overflow Clear V=0 VS Overflow Set V=1 PL Plus N=0 MI Minus N=1

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Chapter 3

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  1. Chapter 3

  2. Program Control Group • T True None • F False None • HI High C+Z=0 • LS Lower or Same C+Z=1 • CC Carry Clear C=0 • CS Carry Set C=1 • NE Not Equal Z=0 • EQ Equal Z=1 • VC Overflow Clear V=0 • VS Overflow Set V=1 • PL Plus N=0 • MI Minus N=1 • GE Greater than or Equal N xor V=0 • LT Less than N xor V=1 • GT Greater Than Z+(N xor V)=0 • LE Lower Than or Equal Z+(N xor V)=0

  3. Conditional Branch • BHI Branch if High • BLS Branch if Lower or Same • BCC Branch if Carry Clear • BCS Branch if Carry Set • BNE Branch if Not Equal • BEQ Branch if Equal • BVC Branch if Overflow Clear • BVS Branch if Overflow Set • BPL Branch if Plus • BMI Branch if Minus • BGE Branch if Greater than or Equal • BLT Branch if Less than • BGT Branch if Greater Than • BLE Branch if Lower Than or Equal

  4. Signed and Unsigned Comparison • If both the values are signed • BGE Branch if Greater than or Equal • BLT Branch if Less than • BGT Branch if Greater Than • BLE Branch if Lower Than or Equal • BNE Branch if Not Equal • BEQ Branch if Equal

  5. Signed and Unsigned Comparison • If both the numbers are unsigned for comparison • BHI Branch if High • BLS Branch if Lower or Same • BCC Branch if Carry Clear • BCS Branch if Carry Set • BNE Branch if Not Equal • BEQ Branch if Equal

  6. Decrement and Branch Condition • BHI Branch if High • BLS Branch if Lower or Same • BCC Branch if Carry Clear • BCS Branch if Carry Set • BNE Branch if Not Equal • BEQ Branch if Equal • BVC Branch if Overflow Clear • BVS Branch if Overflow Set • BPL Branch if Plus • BMI Branch if Minus • BGE Branch if Greater than or Equal • BLT Branch if Less than • BGT Branch if Greater Than • BLE Branch if Lower Than or Equal

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