A theoretical formalism for analyzing agent-based models

Complex Adaptive Systems Modeling

Table 1 RASP instructions adapted from Cook and Reckhow’s ( 1973 ) Table 2

Instruction	Interpretation	Code	Time	New space
LOD c	Load constant c into AC	1	2w	0
LOD c	Increment IC
ADD X _i	Add the value in register X_j to AC	2	4w	0
ADD X _i	Increment IC
SUB X _i	Subtract the value in register X_j from AC	3	4w	0
SUB X _i	Increment IC
STO X _i	Store the value in AC to register X_j	4	3w	w, if X_j was not allocated else 0
STO X _i	Increment IC
BPA c	If AC > 0, then set IC to c	5	3w	0
BPA c	If AC ≤ 0, increment IC
RD X _i	Load the next input tape value into X_j	6	3w	w, if X_j was not
RD X _i	Increment IC			allocated else 0
PRI X _i	Output the value in X_j to the output tape	7	3w	0
PRI X _i	Increment IC
HLT	Halt execution	-∞ o 0 and 8 to ∞-	2w	0