Description: Program DEMOCRW and DEMOPRO is used to study the protected mode features 80X86 CPU core in conventional memory, internal data and stack for easy viewing. This program must be run in pure DOS (such as Windows 98 boot DOS), after running memory-resident, then run DEBUG experiment. Protection exception will occur with yellow on black display current information (error code, interrupt number (actually interrupt number* 4), V86 stack) and exit abnormal program. Will report addresses data at startup, and then to display the program address the report data. 2 RDRXSGEE program originally used STC89C52 small systems, P0 port output control LED light bar, P1 access LED indicator, P2 pick four keyboard. There are features available serial commands via serial backhaul RAM, XRAM, SFG, EEPROM content, is conducive to observe the state of the runtime system will also help to learn.
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DEMOCRW.ASM
DEMOCRW.EXE
DEMOPRO.ASM
DEMOPRO.EXE
RDRXSGEE.ASM
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