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[/] [cpu6502_true_cycle/] [trunk/] [rtl/] [vhdl/] [fsm_execution_unit.vhd] - Rev 26

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26 v1.4 PRODUCTION fpga_is_funny 2054d 12h /cpu6502_true_cycle/trunk/rtl/vhdl/fsm_execution_unit.vhd
24 Bug fix for wrong interrupt sequences in IRQ and NMI. Tested by
simulation with RTI and in a real environment by customer.
Removed directory ./verilog_TRIAL from source.		 fpga_is_funny 5160d 12h /cpu6502_true_cycle/trunk/rtl/vhdl/fsm_execution_unit.vhd
18 New directory structure. root 5531d 13h /cpu6502_true_cycle/trunk/rtl/vhdl/fsm_execution_unit.vhd
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 5543d 15h /cpu6502_true_cycle/trunk/rtl/vhdl/fsm_execution_unit.vhd
14 More optimizations...
- Second Phaze of removing unused nets & registers
- Added Verilog source on demand by some customers (for trial use)		 fpga_is_funny 5590d 13h /cpu6502_true_cycle/trunk/rtl/vhdl/fsm_execution_unit.vhd
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 5595d 11h /cpu6502_true_cycle/trunk/rtl/vhdl/fsm_execution_unit.vhd
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 5595d 11h /cpu6502_true_cycle/trunk/rtl/vhdl/fsm_execution_unit.vhd
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 5595d 11h /cpu6502_true_cycle/trunk/rtl/vhdl/fsm_execution_unit.vhd
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 5595d 12h /cpu6502_true_cycle/trunk/rtl/vhdl/fsm_execution_unit.vhd

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