Debugging aid parallel execution of a plurality of iterations with source lists display corresponding to each iteration

摘要

This invention makes debugging more efficient when an object program is intended for processing a loop made up of n groups of iteration-forming instructions. Instructions in the secondary assembler program each has a combination of a line number ";lx" and an iteration identifier ";ix" attached thereto. The line number ";lx" specifies a source code from which the instruction is generated, and the iteration identifier ";ix" specifies an iteration to which the instruction belongs. When the user sets a breakpoint at an instruction, displayed in the windows are (a) a source code for generating the instruction at the breakpoint and (b) another source code for generating another instruction that belongs to a different group of iteration-forming instructions than the breakpoint instruction.