Finished transcribing all of the words in Chapter 6.
Now to debug them…
First, see if I can get MartyG’s simulation running…
Altair 8800 (Z80) simulator Open SIMH V4.1-0 Current git commit id: 625b9e8d+uncommitted-changes
/home/cac/Projects/zip/MartyG/mg.ini-3> set cpu verbose
8192 bytes [32 pages] loaded at f000.
Warning: 16 pages modified.
/home/cac/Projects/zip/MartyG/mg.ini-7> g F000
%SIM-INFO: SIGINT will be delivered to your debugger when the ^F character is entered
#
Z80 ROM MONITOR V5.04 - LOW PAGE (J.Monahan,7/29/2014)
SP=FFFF IOBYTE= 11111111
->
But if a type a character, it goes berserk, like a was holding the character down. Reviewing the ROM listings to see if I can decipher the port bits.
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