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Rev Log message Author Age Path
294 Fixed an ancient bug in the parity logic that had the parity inverted. jshamlet 1000d 22h /
293 Fixed formatting issue in o8_sync_serial where tabs were inserted instead of spaces and fixed column spacing as a result (purely cosmetic) jshamlet 1019d 21h /
292 Updated the o8_trig_delay entity by:
1) Added a global interrupt enable,
2) Added the ability to trigger on both the pre- and post-arm trigger input
3) Added the ability to read the external input on offset 7		 jshamlet 1090d 21h /
291 Added Notepad++ language definition file for the Open8_II ISA jshamlet 1133d 11h /
290 Added an additional generic "Rotation_Ignores_Carry" that removes the carry logic from the ROL/ROR instructions such that they now rotate 'normally',
Added an alias for PSR_GP4 named PSR_S, as it is now used to switch the function of the RSP instruction. The internal opcode hasn't changed, but it allows assembly code to use PSR_S or BRS/BNS when performing RSP related operations.		 jshamlet 1133d 11h /
289 Added back the delay for the cursor home command, since it is slow on most Hitachi compatible LCD panels. jshamlet 1150d 22h /
288 Removed hard-wired R/Wn output and replaced it with a note that the R/Wn line must be tied low either in firmware or on the board. jshamlet 1151d 18h /
287 Fixed mangled comments and revisioning dates. jshamlet 1152d 17h /
286 Added initial cut of a "universal" character LCD driver. Allows for adjustment of address setup, enable high, and cycle times. Also has built-in timers for handling timing on certain commands. jshamlet 1152d 18h /
285 Added checksum byte to vector tx/rx to avoid issues with serial line noise glitching the receiver. Also modified the transmitted to take any generic argument, rather than canned arguments. jshamlet 1159d 21h /
284 Corrected the vhdl unit name and description for o8_7seg.vhd jshamlet 1273d 08h /
283 Altered SDLC bitclock check on TX to NOT block when tested by software, but to instead ignore packet write requests if BClk_Okay is low. This allows software to continue checking BClk_Okay in a polling loop. jshamlet 1276d 19h /
282 Modified the SDLC core transmit states to have consistent naming. jshamlet 1276d 20h /
281 Added pre-initialization to the dual-port RAM signals. jshamlet 1276d 23h /
280 Got rid of silly aliases that connected the dual-port memory and the arbitration logic. jshamlet 1276d 23h /
279 More comment cleanup jshamlet 1277d 20h /
278 Flattened the SDLC interface to fewer files and eliminated the package file. jshamlet 1278d 14h /
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 1278d 20h /
276 More comment fixes jshamlet 1313d 17h /
275 Fixed a minor comment error. jshamlet 1315d 11h /

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