COBOL Manual for TNS and TNS/R Programs

Introduction
HP COBOL Manual for TNS/E Programs—520347-003
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Summary of Execution Modes
Summary of Execution Modes
TNS/Rsystems support three execution modes:
Because of architectural differences between execution modes, you cannot mix TNS
object code, accelerated object code, and native object code in one loadfile. A native
program can contain only native object code.
TNS Mode Accelerated Mode TNS/R Native Mode
Programs are generated by
TNS compilers.
Programs are generated by
TNS compilers and then
processed by the
Accelerator.
Programs are generated by
TNS/R native compilers.
Programs use TNS process
and memory architecture.
Programs use TNS process
and memory architecture.
Programs use TNS/R native
process and memory
architecture.
Programs consist of TNS
object code (TNS
instructions).
Programs consist of TNS
object code (TNS
instructions) and accelerated
object code (equivalent
Accelerator-generated RISC
instructions).
Programs consist of TNS/R
native object code (RISC
instructions).
Millicode routines
implement the TNS
instructions on RISC
processors.
Programs execute RISC
instructions directly on RISC
processors and use TNS
mode to execute instructions
for which the Accelerator
could not generate equivalent
RISC instructions.
Programs execute RISC
instructions directly on RISC
processors.