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[/] [t48/] [tags/] [rel_1_0/] [rtl/] [vhdl/] [decoder.vhd] - Rev 292

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292 New directory structure. root 5614d 16h /t48/tags/rel_1_0/rtl/vhdl/decoder.vhd
277 This commit was manufactured by cvs2svn to create tag 'rel_1_0'. 6427d 03h /t48/tags/rel_1_0/rtl/vhdl/decoder.vhd
220 new input xtal_en_i arniml 6609d 01h /t48/tags/rel_1_0/rtl/vhdl/decoder.vhd
215 suppress p2_output_pch_o when MOVX operation is accessing the
external memory
arniml 6826d 05h /t48/tags/rel_1_0/rtl/vhdl/decoder.vhd
214 fix sensitivity list arniml 6833d 07h /t48/tags/rel_1_0/rtl/vhdl/decoder.vhd
204 * suppress p2_output_pch_o when p2_output_exp is active
* wire xtal_i to interrupt module
arniml 6839d 05h /t48/tags/rel_1_0/rtl/vhdl/decoder.vhd
195 Suppress assertion of bus_read_bus_s when interrupt is pending.
This should fix bug report
"PROBLEM WHEN INT AND JMP"
arniml 6840d 16h /t48/tags/rel_1_0/rtl/vhdl/decoder.vhd
188 move check for int_pending_s into ea_i_='0' branch
this fixes a glitch on PCH when an interrutp occurs
during external program memory fetch
arniml 6888d 05h /t48/tags/rel_1_0/rtl/vhdl/decoder.vhd
179 introduce prefix 't48_' for all packages, entities and configurations arniml 6982d 16h /t48/tags/rel_1_0/rtl/vhdl/decoder.vhd
178 Move latching of BUS to MSTATE2
-> sample BUS at the end of RD'
arniml 6984d 04h /t48/tags/rel_1_0/rtl/vhdl/decoder.vhd
171 remove obsolete output stack_high_o arniml 7015d 04h /t48/tags/rel_1_0/rtl/vhdl/decoder.vhd
143 Fix bug report:
"RD' and WR' not asserted for INS A, BUS and OUTL BUS, A"
rd is asserted for INS A, BUS
wr is asserted for OUTL BUS, A
P1, P2 and BUS are written in first instruction cycle
arniml 7211d 07h /t48/tags/rel_1_0/rtl/vhdl/decoder.vhd
134 Fix bug report:
"PSENn Timing"
PSEN is now only asserted for the second cycle if explicitely
requested by assert_psen_s.
The previous implementation asserted PSEN together with RD or WR.
arniml 7255d 02h /t48/tags/rel_1_0/rtl/vhdl/decoder.vhd
120 Fix bug report:
"Program Memory bank can be switched during interrupt"
int module emits int_in_progress signal that is used inside the decoder
to hold mb low for JMP and CALL during interrupts
arniml 7328d 05h /t48/tags/rel_1_0/rtl/vhdl/decoder.vhd
106 clean-up use of ea_i arniml 7369d 04h /t48/tags/rel_1_0/rtl/vhdl/decoder.vhd
101 assert p2_read_p2_o when expander port is read arniml 7372d 12h /t48/tags/rel_1_0/rtl/vhdl/decoder.vhd
92 work around bug in Quartus II 4.0 arniml 7373d 11h /t48/tags/rel_1_0/rtl/vhdl/decoder.vhd
78 adjust external timing of BUS arniml 7394d 10h /t48/tags/rel_1_0/rtl/vhdl/decoder.vhd
72 removed superfluous signal from sensitivity list arniml 7395d 15h /t48/tags/rel_1_0/rtl/vhdl/decoder.vhd
64 + enhance instruction strobe generation
+ rework address output under EA=1 conditions
arniml 7401d 07h /t48/tags/rel_1_0/rtl/vhdl/decoder.vhd

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