Using math services in PL/I under CICS

Simulation of extended-precision floating-point arithmetic is not supported in PL/I routines under CICS®.

PL/I saves and restores floating-point registers where necessary. PLIDUMP can print these registers (for more information about PLIDUMP, see z/OS Language Environment Debugging Guide).

Floating-point overflow and underflow can be handled in OVERFLOW and UNDERFLOW ON-units. The program mask is set appropriately for the levels of CICS and PL/I used.