| 摘要 |
PURPOSE:To debug highly efficiently a program formed by high level language by setting up information indicating the head of a high level language statement and a variable to be traced by an information accumulation specifying means. CONSTITUTION:The address of an assemble statement indicating the head of each high level language statement, a variable and the address of the variable are previously stored in a memory 22. An information accumulation specifying memory 25 has a memory space corresponding to a memory 12 in a target system 1 at the rate of '1' to '1' and stores '1' in respectively corresponding addresses as the information indicating the head of the high level language statement and the setting information of the variable to be traced and '0' in other addresses. When an information setting command is inputted from a CPU21, program counter information indicating the head of the high level language statement, address information required when an CPU11 writes data, and debugging information are written in memories 28-30 respectively, a control circuit 31 outputs a stop signal S4 to the CPU11 to step the CPU11 temporally and outputs an information signal S5 indicating the writing operation in the memories 29, 30. |
