BNOV

From Intellivision Wiki
Revision as of 08:00, 4 December 2010 by Mr z (talk | contribs) (Protected "BNOV" ([edit=autoconfirmed] (indefinite) [move=autoconfirmed] (indefinite)))
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search
Instruction NameBranch on No Overflow
MnemonicsBNOV
CP1610 Clock Cycles7 or 9
InterruptibleYes
Opcode Range$020A, $022A

The Branch on No Overflow opcode (BNOV) is a two-decle opcode that is a part of the Branch family of opcodes. This instruction causes the CP1610 to branch if the Overflow Flag is clear to the address specified by the following parameters.

   Format - Decle #1    Format - Word #2 (All 16 bits are significant)
   0000:0010:00d0:1010  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.