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Rev Log message Author Age Path
312 Added o8_timer24.vhd as a more flexible alternative to o8_sys_timer_ii.vhd.
Also cleaned up some comments in the HTML documentation
jshamlet 379d 19h /
311 Updated documentation to reflect generic switch controlling ROR/ROL behavior and the carry bit jshamlet 423d 15h /
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 450d 20h /
309 Comment cleanup jshamlet 461d 04h /
308 jshamlet 472d 11h /
307 Fixed comments on o8_version.vhd jshamlet 679d 20h /
306 Moved REINIT_TASK_TABLE_PTR call to INITIALIZE_TASK_STACK jshamlet 683d 22h /
305 More code cleanup - rearranged macros and moved stack init to separate macro jshamlet 683d 22h /
304 Modified TASK_SETUP to use the same macros as the rest of the task switcher and cleaned up the code some more. jshamlet 683d 22h /
303 Fixed working, but "incorrect" code (constants were right, but were named incorrectly jshamlet 684d 10h /
302 Corrected issue where register state wasn't being preserved for user function stubs,
Modified FREEMEM calc to use the region size constant.
jshamlet 684d 10h /
301 Adding actual task manager files jshamlet 686d 08h /
300 Adding core task manager assembly jshamlet 686d 08h /
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 688d 08h /
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 689d 10h /
297 Fixed register map comments jshamlet 979d 18h /
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 988d 10h /
295 Undoing previous revision. UART was fine, bug reporter was not. jshamlet 991d 13h /
294 Fixed an ancient bug in the parity logic that had the parity inverted. jshamlet 991d 18h /
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 1010d 18h /
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 1081d 18h /
291 Added Notepad++ language definition file for the Open8_II ISA jshamlet 1124d 08h /
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 1124d 08h /
289 Added back the delay for the cursor home command, since it is slow on most Hitachi compatible LCD panels. jshamlet 1141d 19h /
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 1142d 15h /
287 Fixed mangled comments and revisioning dates. jshamlet 1143d 14h /
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 1143d 15h /
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 1150d 18h /
284 Corrected the vhdl unit name and description for o8_7seg.vhd jshamlet 1264d 05h /
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 1267d 16h /

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