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[/] [open8_urisc/] [trunk/] [VHDL/] [o8_gpin.vhd] - Rev 223

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223 Added an OPEN8_BUS_TYPE record to simplify connection to Open8 modules. The CPU now passes and Open8_Bus out, which supplies the bus address, write enable, write data, and read enable. Read data and interrupts are still handled as separate signals, since they are muxed/connected at the next level up. jshamlet 1565d 22h /open8_urisc/trunk/VHDL/o8_gpin.vhd
213 Code and comment cleanup jshamlet 1571d 00h /open8_urisc/trunk/VHDL/o8_gpin.vhd
194 Cleaned up licensing sections jshamlet 1581d 01h /open8_urisc/trunk/VHDL/o8_gpin.vhd
191 Cleaned up comments, added back the OPEN8_NULLBUS constant, and added some new modules for ADCs and LCD displays.
Also made the button input module more configurable by moving the debounce code to a separate entity and using generics to instantiate it.		 jshamlet 1581d 02h /open8_urisc/trunk/VHDL/o8_gpin.vhd
189 Merged changes from private repository,
added ceil_log2 function to Open8_pkg, since it is used to calculate RAM vectors,
cleaned up comments and removed local copies of the ceil_log2 function from peripherals.		 jshamlet 1594d 00h /open8_urisc/trunk/VHDL/o8_gpin.vhd
167 Updated CPU model; Pipelined ALU control signals to improve fMAX, corrected issue with interrupt controller priority not being obeyed, fixed bug in auto-indexing instructions where the upper register wasn't being properly incremented, cleaned up code to make the processor model easier to follow.
Added several useful modules that use the Open8 bus.		 jshamlet 3967d 19h /open8_urisc/trunk/VHDL/o8_gpin.vhd

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