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Rev Log message Author Age Path
310 Added optional DACadv signal to advance the PWM engine using an external signal. This is used to synchronize the DAC with other DACs or for streaming multiple streams across a high-speed serial link. jshamlet 421d 12h /
309 Comment cleanup jshamlet 431d 20h /
308 jshamlet 443d 02h /
307 Fixed comments on o8_version.vhd jshamlet 650d 12h /
306 Moved REINIT_TASK_TABLE_PTR call to INITIALIZE_TASK_STACK jshamlet 654d 13h /
305 More code cleanup - rearranged macros and moved stack init to separate macro jshamlet 654d 13h /
304 Modified TASK_SETUP to use the same macros as the rest of the task switcher and cleaned up the code some more. jshamlet 654d 14h /
303 Fixed working, but "incorrect" code (constants were right, but were named incorrectly jshamlet 655d 01h /
302 Corrected issue where register state wasn't being preserved for user function stubs,
Modified FREEMEM calc to use the region size constant.
jshamlet 655d 02h /
301 Adding actual task manager files jshamlet 656d 23h /
300 Adding core task manager assembly jshamlet 656d 23h /
299 Modified the status_led.vhd to slow down the DIM50PCT signal to 1/32 instead of 1/2 for use with shift-register based discrete LEDs and added the ability to chain the toggle signal to save on resources as well as synchronize the "toggling" jshamlet 658d 23h /
298 Fixed a long-standing bug in the SBC instruction where the 1 wasn't being added to complete the 2's complement of Rn. This was causing off-by-one errors in subtraction and negating carry only subtractions. jshamlet 660d 02h /
297 Fixed register map comments jshamlet 950d 10h /
296 Removed parallel interface from o8_vector_rx.vhd, modified vector_tx.vhd to use a generic for it's seed value, slight formatting change on o8_elapsed_usec.vhd. jshamlet 959d 02h /
295 Undoing previous revision. UART was fine, bug reporter was not. jshamlet 962d 05h /
294 Fixed an ancient bug in the parity logic that had the parity inverted. jshamlet 962d 10h /
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 981d 10h /
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 1052d 09h /
291 Added Notepad++ language definition file for the Open8_II ISA jshamlet 1095d 00h /
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 1095d 00h /
289 Added back the delay for the cursor home command, since it is slow on most Hitachi compatible LCD panels. jshamlet 1112d 10h /
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 1113d 06h /
287 Fixed mangled comments and revisioning dates. jshamlet 1114d 06h /
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 1114d 06h /
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 1121d 09h /
284 Corrected the vhdl unit name and description for o8_7seg.vhd jshamlet 1234d 20h /
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 1238d 08h /
282 Modified the SDLC core transmit states to have consistent naming. jshamlet 1238d 08h /
281 Added pre-initialization to the dual-port RAM signals. jshamlet 1238d 11h /

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