BUSC

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Instruction NameBranch on Unequal Sign and Carry
MnemonicsBUSC
CP1610 Clock Cycles7 or 9
InterruptibleYes
Opcode Range$0207, $0227

The Branch on Unequal Sign and Carry opcode (BUSC) is a two-decle opcode that is a part of the Branch family of opcodes. This instruction causes the CP1610 to branch if the Carry Flag is not equal to the Sign Flag to the address specified by the following parameters.

   Format - Decle #1    Format - Word #2 (All 16 bits are significant)
   0000:0010:00d0:0111  aaaa:aaaa:aaaa:aaaa
where:
d indicates the direction of the branch such that: d == 0 indicates to branch in the forward direction d == 1 indicates to branch in the reverse direction
aaaaaaaaaaaaaaaa indicates the amount of offset

See the Branch opcode family documentation for more information.

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