JPC: Difference between revisions
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(JPC instruction) |
(No difference)
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Revision as of 19:07, 9 August 2009
| JPC | |
|---|---|
| Description | Count and jump if X register is positive or zero. |
| Format | JPC <disp.> |
| Code | 132 0008 |
| Affected | (X):=(X)+1, If (X)>=0 (P):=(P)+Δ |
| Type | User |
| Architecture | ND-100, ND-110 |
JPC is an assembly instruction. It increment the X register by one. If the X register is positive or zero (bit 15 = 0), it jump the program execution to the address of the program counter (P register) plus the value of displacement, that can be between -128 to 127. Else it continue the program execution at (P) + 1.
References
- Norsk Data Document ND–06.014.02 ND-100 REFERENCE MANUAL Page 139
- Norsk Data Document ND–06.029.01 ND-110 Instruction Set Page 80