| Rev |
Log message |
Author |
Age |
Path |
| 170 |
Added 24-bit resolution epoch timer / alarm clock |
jshamlet |
3198d 07h |
/open8_urisc/trunk/ |
| 169 |
Corrected issue with CMP and SBC generating an inverted carry flag and added new constants to the package file to simplify interfacing new modules. |
jshamlet |
3253d 07h |
/open8_urisc/trunk/ |
| 168 |
Simplified write data path logic,
Converted RTC to packed BCD,
Corrected several bugs in real time clock component, |
jshamlet |
4032d 03h |
/open8_urisc/trunk/ |
| 167 |
Updated CPU model; Pipelined ALU control signals to improve fMAX, corrected issue with interrupt controller priority not being obeyed, fixed bug in auto-indexing instructions where the upper register wasn't being properly incremented, cleaned up code to make the processor model easier to follow.
Added several useful modules that use the Open8 bus. |
jshamlet |
4040d 02h |
/open8_urisc/trunk/ |
| 166 |
fixed additional issues with range checking on PCREL relocations for open8, added test cases to verify, catch tree up with binutils datestamp 20120301 |
khays |
4604d 03h |
/open8_urisc/trunk/ |
| 165 |
fixed issues with PC relative fixups in the linker |
khays |
4605d 10h |
/open8_urisc/trunk/ |
| 164 |
Modified the data path to allow the bus to go idle while waiting for an interrupt. This makes it easier to debug code that uses the WAI instruction, as both Wr_Enable and Rd_Enable go low. |
jshamlet |
4675d 22h |
/open8_urisc/trunk/ |
| 163 |
sync with binutils 2.22.51.20111114 |
khays |
4713d 09h |
/open8_urisc/trunk/ |
| 162 |
Added optional generic to specify that the BRK instruction implements a WAit_for_Interrupt (WAI) instruction instead. Logically emulates INT, but without triggering a soft interrupt. Note that the NOP instruction maps to BRK, and will not function correctly if this option is set. |
jshamlet |
4766d 15h |
/open8_urisc/trunk/ |
| 161 |
synchronize binutils/ with gnu dev tree of 2.21.53.20110828 |
khays |
4790d 09h |
/open8_urisc/trunk/ |
| 160 |
synchronize binutils/gas with gnu dev tree of 2.21.53.20110828 |
khays |
4790d 09h |
/open8_urisc/trunk/ |
| 159 |
synchronize binutils/gold with gnu dev tree of 2.21.53.20110828 |
khays |
4790d 09h |
/open8_urisc/trunk/ |
| 158 |
synchronize binutils/opcodes with gnu dev tree of 2.21.53.20110828 |
khays |
4790d 09h |
/open8_urisc/trunk/ |
| 157 |
synchronize binutils/ld with gnu dev tree of 2.21.53.20110828 |
khays |
4790d 09h |
/open8_urisc/trunk/ |
| 156 |
Optimized for timing,
Flattened block structure to single entity. |
jshamlet |
4823d 05h |
/open8_urisc/trunk/ |
| 155 |
Fixed additional interrupt logic bug,
Optimized several blocks - including ALU, stack, program counter, and data path. |
jshamlet |
4824d 00h |
/open8_urisc/trunk/ |
| 154 |
Fixed problem with missing data path override in interrupt logic. Should resolve issues with processor crashing when an interrupt occurs as a STO instruction is being executed. |
jshamlet |
4829d 03h |
/open8_urisc/trunk/ |
| 153 |
Fixed bug in interrupt logic that caused stack pointer to increment if interrupt occurred as specific instructions were being decoded,
Fixed bug in interrupt logic where instruction caching would remain enabled during an interrupt, causing improper execution depending on what instruction was in the decode stage as the interrupt is trigered. |
jshamlet |
4855d 22h |
/open8_urisc/trunk/ |
| 152 |
Correct the descriptions for GMSK and SMSK instructions in the Open8 Assembly Language Reference |
khays |
4864d 01h |
/open8_urisc/trunk/ |
| 151 |
Fixed STO instruction and interrupt logic to avoid address bus corruption issues. |
jshamlet |
4866d 02h |
/open8_urisc/trunk/ |
