mixal

Based on MIXAL from Darius Bacon. See runhello for example usage.

You can check James L. Peterson's Computer Organization and Assembly Language Programming book, which uses the MIX machine.

For a reference see the MIX Reference Card.

If you want to run the real thing, you can try Michael Schroeder's MIX-fpga !

Changes:

Tyme unit is 6us, drum size is 512 sectors, drum/disk rotational delay, tape load-point
added unchecked transcripts of Knuth's MIX assembly program, Threetran interpreter and compiler
Mixmaster mode: memory size is 32KW, r1-r6 is 5 digits + sign, the instruction format AAAA J0 LR CC, specify the address JAAAA
changed CPrM syntax to CPMr (CI = reg:M)
fixed shifts, punch object card deck, NUM handles overpunch, debugged I/O, runs Peterson's load-and-go assembler (see runprimes)
fixed INT encoding (C=5,F=9), added MIX360 user manual and UT-MIX manual
ALF statement without quotes
assemble only
core memory support (non-volatile memory)
punch object card deck
GO button
MIXmaster instructions added: XEQ (execute), CPrM (CI = reg:M)
indirect/double-addressing
UT-MIX instructions added: NEG, XCH
binary instructions: OR, XOR, AND, SLB, SRB, JrE, JrO
interrupt facility, real-time clock (INT instruction)
limited size of drum and tape devices
memory dump of non-zero locations, with instruction frequency counts
instruction execution trace
count idle time waiting for I/O to complete
MinGW port
overlapping I/O buffer checks, incomplete I/O detection
reference card
card reader/punch and printer can use files instead of stdin/stdout
time dependent I/O (low-end Burroughs B5500 peripheral timing)
tape devices

NOTE: execution trace and memory dump mechanics loosely follows Knuth, Sites: MIX/360 User's Guide. For the UT-MIX extensions see Peterson: UT-MIX Reference Manual. Good luck!

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