Fix bugs in LDS and LES instructions

jart / blink

tiniest x86-64-linux emulator

ISC License

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Closed tkchia closed 1 year ago

tkchia commented 1 year ago

get size of offset operand from CPU mode and instruction prefixes (lds (...),%ax and lds (...),%eax both possible)
segment value comes after offset value in memory

tkchia commented 1 year ago

I am trying to see how far I can go in getting a FreeDOS 1.3 Floppy Edition (http://www.ibiblio.org/pub/micro/pc-stuff/freedos/files/distributions/1.3/official/) boot floppy image to run.