Second project from the Computer Systems Design course of the Brno University of Technology, Faculty of Informational Technologies - VHDL Brainlove Interpreter
This repo is deprecated in favor of the new cumulative repository. It remains undeleted due to the two forks existing for some reason. Any updates will be pushed to the beforementioned repository instead.
Please note that
This product includes software developed by the University of Technology, Faculty of Information Technology, Brno and its contributors.
Project was derived from Zdenek Vasicek's template controlling the peripheral features of the FITkit development kit containing the XC3S50 family FPGA on board.
It is uploaded in form that was submitted for grading.
The login.b and login-long.b both contain code (the latter with comments) in the language Brainlove, that the processor described in cpu.vhd is capable of interpreting. Brainlove is extension to the Brainfuck language featuring five new commands. Of those, the processor is capable of interpreting $ and ! commands that store and load the value of the current cell to and from TMP memory cell, respectively, in addition to all standard Brainfuck commands.
The processor does not support following Brainlove commands as it was not specified in the assignement:
( while(!*ptr) { /* loop while *ptr == 0 */
) }
~ break; /* break from the most inner loop */
The project was graded with following notes from Zdenek Vasicek:
Verification of the processor's functionality:
0. test program (BF) result
1. ++++++++++ ok
2. ---------- ok
3. +>++>+++ ok
4. <+<++<+++ ok
5. .+.+.+. ok
6. ,+,+,+, ok
7. +$+++++++++++! ok
8. +$>++++! ok
9. [........]test[.........] ok
10. +++[.-] ok
11. +++++[>++[>+.<-]<-] ok
Support of basic cycles: yes
Support of nested cycles: yes
Notes regarding implementation:
Processor does not respond to the signal EN
Incomplete sensitivity list; missing signals: DATA_RDATA, IN_DATA, tmp_signal
Possible problematic control of following signals: DATA_RDWR, wdata_selector
Total points for CPU implementation: 16 (out of 17)