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outjmp.zip
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9,368
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2017/7/31 [08:52:26]
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This program searches in CP/M programs (.COM) for command sequences from an output command and a 'Program Flow Change' command (eg CALL/JMP). According to Errata Sheet to the Z280 errors can occur if after a 'External write with waitstates', a command executing the command is executed Pipeline of the processor. In the case of the CPU280 the former is only at I/O-Write (i.e., OUT). Except for CALL and JMP is the pipeline also deleted with PCACHE and LDCTL, whereby LDCTL is privileged and therefore it does not have to be checked here (comes only in the BIOS). Return-Commands are not critical in the case of an external stack (ie, CPU280 in general).The OUTJMP program scans files for the occurrence of such 'forbidden'Sequences and displays these as well as their address.
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