OpenCores
URL https://opencores.org/ocsvn/cpu6502_true_cycle/cpu6502_true_cycle/trunk

Subversion Repositories cpu6502_true_cycle

[/] - Rev 23

Rev

Go to most recent revision

Filtering Options

Clear current filter

Rev Log message Author Age Path
23 fpga_is_funny 5165d 04h /
22 fpga_is_funny 5165d 04h /
21 fpga_is_funny 5165d 04h /
20 Added old uploaded documents to new repository. root 5535d 12h /
19 Added old uploaded documents to new repository. root 5536d 05h /
18 New directory structure. root 5536d 05h /
17 CORRECTED "RTI" (wrong: use of stack pointer)
RENAME all states of "FSM Execution Unit" for better reading
(90%) Finish working for Specification of cpu6502_tc		 fpga_is_funny 5548d 07h /
16 CORRECTED "RTI" (wrong: use of stack pointer)
RENAME all states of "FSM Execution Unit" for better reading
(90%) Finish working for Specification of cpu6502_tc		 fpga_is_funny 5548d 07h /
15 CORRECTED "RTI" (wrong: use of stack pointer)
RENAME all states of "FSM Execution Unit" for better reading
(90%) Finish working for Specification of cpu6502_tc		 fpga_is_funny 5548d 07h /
14 More optimizations...
- Second Phaze of removing unused nets & registers
- Added Verilog source on demand by some customers (for trial use)		 fpga_is_funny 5595d 05h /
13 DELETED directory cpu6502_true_cycle/doc/HTML - use the HTML.RAR file instead fpga_is_funny 5600d 01h /
12 no message fpga_is_funny 5600d 02h /
11 *** EMERGENCY BUGFIX ***
- Signal rd_o was corrupted in last version. wr_o and wr_n are not effected.
- OP JMP (indirect) produced a 65C02 like jump. On 6502 a special case exist
when the (indirect) address cross the page boundary (e.g. JMP (02FF) reads
from $02FF and $0200, instead of $02FF and $0300)		 fpga_is_funny 5600d 03h /
10 This commit was manufactured by cvs2svn to create tag 'arelease'. 5600d 03h /
9 This commit was generated by cvs2svn to compensate for changes in r8, which
included commits to RCS files with non-trunk default branches.		 fpga_is_funny 5600d 03h /
8 *** EMERGENCY BUGFIX ***
- Signal rd_o was corrupted in last version. wr_o and wr_n are not effected.
- OP JMP (indirect) produced a 65C02 like jump. On 6502 a special case exist
when the (indirect) address cross the page boundary (e.g. JMP (02FF) reads
from $02FF and $0200, instead of $02FF and $0300)		 fpga_is_funny 5600d 03h /
7 This commit was generated by cvs2svn to compensate for changes in r6, which
included commits to RCS files with non-trunk default branches.		 fpga_is_funny 5600d 04h /
6 *** EMERGENCY BUGFIX ***
- Signal rd_o was corrupted in last version. wr_o and wr_n are not effected.
- OP "JMP (indirect)" produced a 65C02 like jump. On 6502 a special case exist
when the (indirect) address cross the page boundary (e.g. JMP (02FF) reads from
$02FF and $0200, instead $02FF and $0300)		 fpga_is_funny 5600d 04h /
5 Bugfixes for all relationchips with interrupts BRK, IRQ and NMI.
The control for the stack pointer within fsm*s of BRK, IRQ and NMI was incorrect. The stack was allways growing up instead of growing down.
The "B" status flag was never set within BRK.
The relationchip between addresses and data while writing onto the stack was badly misalligned.		 fpga_is_funny 5862d 07h /
4 Corrected HTML files for documentation (change $log$ to $Log$ in all VHDL files in first release) fpga_is_funny 5871d 04h /

1 2 Next >

Show All

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.