The assembler passes a parameter list to the external function module. Register 1 points to the
parameter list, and macro ASMAEFNP maps the parameter list. Figure 1
shows the SETAF parameter list, and Figure 2 shows the SETCF
parameter list. A separate copy of the external function parameter list is passed to each external
function. The sections following
the figures describe each of the parameters in detail. Figure 1. SETAF external function parameter list formatFigure 2. SETAF external function parameter
list format
The external function parameter list consists of the following
addresses: