GMS30C2116 Datasheet, PDF (258/322 Pages) Hynix Semiconductor – USERS MANUAL

A-84
Frame (continued)
Operation:
FP := FP - Ls-code;
FL := Ld code;
M := 0;
difference (6..0) := SP(8..2) + (64-16) - (FP + FL);
if defference > 0 then continue at next instruction
else temporary flag := SP > UB;
repeat memory SP := register SP(7..2)^;
SP := SP + 4;
difference := difference + 1;
until difference = 0;
if temporary flag = 1 then trap => Range Error
Exceptions:
Range Error exception.
Appendix A. Instruction Set Details
FRAME