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--- spo600:6502_jumps_branches_and_subroutines [2024/01/12 20:07] – created chris
+++ spo600:6502_jumps_branches_and_subroutines [2024/04/16 18:10] (current) – external edit 127.0.0.1
@@ Line 25: / Line 25: @@
 Branches are conditional on the state of a [[6502#Registers|processor flag]]. The destination of the branch is given as a signed byte relative to the current value of the [[6502#Registers|PC]], so the destination must be within -128 to +127 bytes of the byte after the branch instruction. These are the branch instructions available:
-  BCC ; Branch on Carry flag ('''C''') Clear
+  BCC ; Branch on Carry flag (C) Clear
-  BCS ; Branch on Carry flag ('''C''') Set
+  BCS ; Branch on Carry flag (C) Set
-  BEQ ; Branch on EQual (zero '''Z''' flag set)
+  BEQ ; Branch on EQual (zero Z flag set)
-  BNE ; Branch on Not Equal (zero '''Z''' flag clear)
+  BNE ; Branch on Not Equal (zero Z flag clear)
-  BMI ; Branch on MInus (negative flag '''S/N''' set)
+  BMI ; Branch on MInus (negative flag N set)
-  BPL ; Branch on PLus (negative flag '''S/N''' clear)
+  BPL ; Branch on PLus (negative flag N clear)
-  BVC ; Branch on oVerflow flag '''V''' Clear
+  BVC ; Branch on oVerflow flag V Clear
-  BVS ; Branch on oVerflow flag '''V''' Set
+  BVS ; Branch on oVerflow flag V Set
 In assembler, you typically specify the address or label to which you wish to branch, and the assembler calculates the relative value for the branch offset.