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[/] [light8080/] [trunk/] - Rev 78

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78 Fixed a number of errors in the last refactor of the VHDL side of the project:
- Path errors in the simulation scripts.
- The reset pin in the C2SB mini-test-bench was not being driven.
- The main vhdl test bench file was missing entirely.

All of these errors due to not properly verifying the commit...		 ja_rd 4420d 07h /light8080/trunk/
77 Fixed a few mistakes in the last code reorganization.
Mostly bad paths but also a broken comment in the UART source...		 ja_rd 4421d 05h /light8080/trunk/
76 Corrected some minor issues in the core description document. motilito 4427d 21h /light8080/trunk/
75 Updated file list ja_rd 4431d 12h /light8080/trunk/
74 Testbenches for VHDL core moved to sw/tb.
Added a mini-demo for the VHDL SoC on the DE-1 dev board.
Added a mini-testbench for the VHDL SoC.		 ja_rd 4431d 12h /light8080/trunk/
73 New tool for VHDL object code constant generation.
Old VHDL template tool moved to tools directory.		 ja_rd 4431d 13h /light8080/trunk/
72 Added specs document for VHDL/Verilog CPU core ja_rd 4431d 13h /light8080/trunk/
71 IMSAI manual removed, no longer used ja_rd 4431d 13h /light8080/trunk/
70 Added new VHDL SoC for demonstration purposes ja_rd 4431d 13h /light8080/trunk/
69 New simulation scripts for Modelsim in new separate directory.
Includes old test benches for CPU VHDL core and new test benches for SoC VHDL core		 ja_rd 4431d 13h /light8080/trunk/
68 Corrected ihex2vlog tool to enable explicit RAM declaration for Spartan 2. motilito 4442d 08h /light8080/trunk/
67 Corrected bugs in the Small-C compiler. motilito 4443d 10h /light8080/trunk/
66 Adding interrupt example code to the Verilog implementation. An interrupt controller was added to the sample SOC module and a sample code was added to the "hello.c" example code. motilito 4458d 08h /light8080/trunk/
65 Adding Verilog initial version to the svn.
Added the c80 Small-C compiler and AS80 assembler.		 motilito 4469d 16h /light8080/trunk/
64 BUG FIX: Flags CY and AC were not clear by logic instructions
Added new flag to microcode: clr_acy
Used new flag to clear AC and CY flags unconditonally
Modified microcode for XR*, OR* and AN* to use new flag
Modified microcode assembler to support new flag
Addex explaination of new flag to documentation
Old fix that worked only for XR* instructions removed
Test bench tb0 modified to test CY clearance minimally (AC untested!)
Pre-generated vhel test bench tb0 altered accordingly		 ja_rd 4478d 16h /light8080/trunk/
63 Modified syntax of ARGV parameter for compatibility to later versions of Perl ja_rd 4478d 16h /light8080/trunk/
62 Changed all hard tabs to spaces as preamble to a minor refactor ja_rd 4479d 02h /light8080/trunk/
61 Basic demo updated: main entity name changed to keep synthesis too happy ja_rd 4847d 03h /light8080/trunk/
60 Fixed nasty typo in pin constraints file (clock input) ja_rd 4851d 08h /light8080/trunk/
59 tabs to spaces ja_rd 4875d 16h /light8080/trunk/
58 tabs to spaces ja_rd 4875d 16h /light8080/trunk/
57 removed unfinished CPM demo files ja_rd 5060d 06h /light8080/trunk/
56 file list updated ja_rd 5060d 06h /light8080/trunk/
55 Altair 4K Basic demo on DE-1 board ja_rd 5060d 06h /light8080/trunk/
54 BUG FIX: XOR operations wre not clearing CY and ACY ja_rd 5060d 06h /light8080/trunk/
53 added interrupt for single-stepping
cleaned up comments a bit		 ja_rd 5416d 06h /light8080/trunk/
52 test bench compilation script sanitized a little ja_rd 5416d 06h /light8080/trunk/
51 interrupt test bench adapted to the fix in IE instruction ja_rd 5416d 06h /light8080/trunk/
50 interrupt test bench adapted to the fix in IE instruction ja_rd 5416d 06h /light8080/trunk/
49 fixed: IE now enables interrupts after a 1-instruction delay
(it was enabling interrupts immediately)		 ja_rd 5416d 06h /light8080/trunk/

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