| Rev |
Log message |
Author |
Age |
Path |
| 184 |
More file/entity renaming to match private versions. |
jshamlet |
1645d 15h |
/ |
| 183 |
Renamed core to o8_cpu to match new naming scheme |
jshamlet |
1645d 15h |
/ |
| 182 |
Simplified the address generation logic at the expense of making LDX take one additional clock cycle. This allowed the address logic to be split out of the main state machine and simplified (greatly). During this process, a bug in SDO was found and fixed that caused it to return through the wrong pipe fill state wnen auto increment was disabled. |
jshamlet |
1645d 15h |
/ |
| 181 |
Altered the RSP instruction to allow the stack pointed to either be restored from registers or stored to registers based on the status of a processor bit. Also modified LDX to simplify the address logic. |
jshamlet |
1646d 12h |
/ |
| 180 |
Added additional Open8 compatible modules |
jshamlet |
1650d 15h |
/ |
| 179 |
Replacing files accidentally deleted during check-in |
jshamlet |
1660d 11h |
/ |
| 178 |
Adding Open8 toolset for pure assembly |
jshamlet |
1660d 11h |
/ |
| 177 |
Fixed comments in RTC module |
jshamlet |
2970d 16h |
/ |
| 176 |
Fixed documentation errors,
Modified uSec_Tick such that it is always generated regardless of the interval. |
jshamlet |
2975d 13h |
/ |
| 175 |
Added 4 and 8-bit LCD interfaces with backlight and contrast DACs |
jshamlet |
2975d 18h |
/ |
| 174 |
Added ROM/RAM wrappers |
jshamlet |
3170d 13h |
/ |
| 173 |
Added a couple of useful interfaces for detecting button presses and clock changes. |
jshamlet |
3170d 13h |
/ |
| 172 |
General code cleanup |
jshamlet |
3170d 13h |
/ |
| 171 |
Fixed comments for offsets 0x0 - 0x3 to indicate the read value |
jshamlet |
3170d 13h |
/ |
| 170 |
Added 24-bit resolution epoch timer / alarm clock |
jshamlet |
3170d 13h |
/ |
| 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 |
3225d 14h |
/ |
| 168 |
Simplified write data path logic,
Converted RTC to packed BCD,
Corrected several bugs in real time clock component, |
jshamlet |
4004d 10h |
/ |
| 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 |
4012d 09h |
/ |
| 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 |
4576d 10h |
/ |
| 165 |
fixed issues with PC relative fixups in the linker |
khays |
4577d 17h |
/ |
| 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 |
4648d 04h |
/ |
| 163 |
sync with binutils 2.22.51.20111114 |
khays |
4685d 16h |
/ |
| 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 |
4738d 21h |
/ |
| 161 |
synchronize binutils/ with gnu dev tree of 2.21.53.20110828 |
khays |
4762d 16h |
/ |
| 160 |
synchronize binutils/gas with gnu dev tree of 2.21.53.20110828 |
khays |
4762d 16h |
/ |
| 159 |
synchronize binutils/gold with gnu dev tree of 2.21.53.20110828 |
khays |
4762d 16h |
/ |
| 158 |
synchronize binutils/opcodes with gnu dev tree of 2.21.53.20110828 |
khays |
4762d 16h |
/ |
| 157 |
synchronize binutils/ld with gnu dev tree of 2.21.53.20110828 |
khays |
4762d 16h |
/ |
| 156 |
Optimized for timing,
Flattened block structure to single entity. |
jshamlet |
4795d 12h |
/ |
| 155 |
Fixed additional interrupt logic bug,
Optimized several blocks - including ALU, stack, program counter, and data path. |
jshamlet |
4796d 07h |
/ |
