maybe the document have some mistake

[davidgonghs]

Good day!
I am David Gong, now a student at Malaysia First City University College.
In Assembly Language class, I use your MARIE.JS to test my program and write reports.
But now I have a question.
When I use Microstep to check my code, the RTL show AC ← AC - MBR.

Then ALU only A0 is activated, and I check GitHub Wiki Datapath Simulator https://github.com/MARIE-js/MARIE.js/wiki/Datapath-Simulator
the ALU opcode signals show subtraction opcode is 010, the active wires should be A1.

I'm wondering if I'm doing something wrong, or if it's just a documented bug.

Thank you!
Best regards!
David Gong

[auroranil]

Hi David Gong,

Thank you for spotting this issue. According to commit 5d9ffeb, we made MARIE.js to be more consistent with the textbook, yet the changes were not reflected in the documentation.

I have updated the documentation to correct this mistake: https://github.com/MARIE-js/MARIE.js/wiki/Datapath-Simulator/_compare/0a1c55a129a400a7ac7c2033c1901f2a09273b84...a6649d328489a0529b491d26d02bd2cc2e904a45

Hopefully this resolve the issue.

Regards,
Saurabh Joshi