| Rev |
Log message |
Author |
Age |
Path |
| 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 |
874d 14h |
/ |
| 297 |
Fixed register map comments |
jshamlet |
1164d 23h |
/ |
| 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 |
1173d 14h |
/ |
| 295 |
Undoing previous revision. UART was fine, bug reporter was not. |
jshamlet |
1176d 18h |
/ |
| 294 |
Fixed an ancient bug in the parity logic that had the parity inverted. |
jshamlet |
1176d 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 |
1195d 22h |
/ |
| 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 |
1266d 22h |
/ |
| 291 |
Added Notepad++ language definition file for the Open8_II ISA |
jshamlet |
1309d 12h |
/ |
| 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 |
1309d 12h |
/ |
| 289 |
Added back the delay for the cursor home command, since it is slow on most Hitachi compatible LCD panels. |
jshamlet |
1326d 23h |
/ |
| 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 |
1327d 19h |
/ |
| 287 |
Fixed mangled comments and revisioning dates. |
jshamlet |
1328d 18h |
/ |
| 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 |
1328d 19h |
/ |
| 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 |
1335d 22h |
/ |
| 284 |
Corrected the vhdl unit name and description for o8_7seg.vhd |
jshamlet |
1449d 09h |
/ |
| 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 |
1452d 20h |
/ |
| 282 |
Modified the SDLC core transmit states to have consistent naming. |
jshamlet |
1452d 21h |
/ |
| 281 |
Added pre-initialization to the dual-port RAM signals. |
jshamlet |
1453d 00h |
/ |
| 280 |
Got rid of silly aliases that connected the dual-port memory and the arbitration logic. |
jshamlet |
1453d 00h |
/ |
| 279 |
More comment cleanup |
jshamlet |
1453d 21h |
/ |
