From Intellivision Wiki
|Instruction Name||Branch if Less Than or Equal Branch if Not Greater Than|
|Mnemonics||BLE / BNGT|
|CP1610 Clock Cycles||7 or 9|
|Opcode Range||$0206, $0226|
The Branch if Less Than or Equal opcode (BLE) is a two-decle opcode that is a part of the Branch family of opcodes. It is also known as Branch if Not Greater Than (BNGT). This instruction causes the CP1610 to branch if the either the Zero Flag is set or the Sign Flag is not equal to the Overflow Flag. If this condition is true, then the CP1610 branches to the address specified by the following parameters.
Format - Decle #1 Format - Word #2 (All 16 bits are significant) 0000:0010:00d0:0101 aaaa:aaaa:aaaa:aaaa
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.