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[/] [open8_urisc/] [trunk/] - Rev 297

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277 Fixed documentation errors related to flags. The UPP ALU instruction only alters the C flag, not the Z or N flags. This implies that using indexed loads or stores with auto post-increment will potentially alter the C flag. jshamlet 1294d 11h /open8_urisc/trunk/
276 More comment fixes jshamlet 1329d 08h /open8_urisc/trunk/
275 Fixed a minor comment error. jshamlet 1331d 02h /open8_urisc/trunk/
274 Updated comments with more corrections jshamlet 1331d 09h /open8_urisc/trunk/
273 Updated comments with corrections jshamlet 1331d 10h /open8_urisc/trunk/
272 Updated the HTML documentation to reflect the removed generic. jshamlet 1341d 10h /open8_urisc/trunk/
271 Removed deleted generic define. jshamlet 1341d 10h /open8_urisc/trunk/
270 Moved CPU internal constants to o8_cpu.vhd and replace the generic that set the RSP direction flag with a constant instead. This removes the need to expose internal architectural flags externally.

Also added a hard-coded version register that takes a major and minor value as bytes using generics. This is a read-only register to the CPU.
jshamlet 1341d 10h /open8_urisc/trunk/
269 Modified the write data path to use separate enumerated states rather than reuse the .reg field to improve performance. jshamlet 1344d 00h /open8_urisc/trunk/
268 Added a 16-input external interrupt manager and dedicated SPI tx-only transmitter (for use with DACs, etc.). Also updated the soft-DACs with cleaned up HDL. jshamlet 1344d 00h /open8_urisc/trunk/

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