| Rev |
Log message |
Author |
Age |
Path |
| 172 |
General code cleanup |
jshamlet |
3376d 15h |
/ |
| 171 |
Fixed comments for offsets 0x0 - 0x3 to indicate the read value |
jshamlet |
3376d 15h |
/ |
| 170 |
Added 24-bit resolution epoch timer / alarm clock |
jshamlet |
3376d 15h |
/ |
| 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 |
3431d 16h |
/ |
| 168 |
Simplified write data path logic,
Converted RTC to packed BCD,
Corrected several bugs in real time clock component, |
jshamlet |
4210d 12h |
/ |
| 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 |
4218d 10h |
/ |
| 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 |
4782d 11h |
/ |
| 165 |
fixed issues with PC relative fixups in the linker |
khays |
4783d 18h |
/ |
| 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 |
4854d 06h |
/ |
| 163 |
sync with binutils 2.22.51.20111114 |
khays |
4891d 18h |
/ |
| 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 |
4944d 23h |
/ |
| 161 |
synchronize binutils/ with gnu dev tree of 2.21.53.20110828 |
khays |
4968d 17h |
/ |
| 160 |
synchronize binutils/gas with gnu dev tree of 2.21.53.20110828 |
khays |
4968d 17h |
/ |
| 159 |
synchronize binutils/gold with gnu dev tree of 2.21.53.20110828 |
khays |
4968d 18h |
/ |
| 158 |
synchronize binutils/opcodes with gnu dev tree of 2.21.53.20110828 |
khays |
4968d 18h |
/ |
| 157 |
synchronize binutils/ld with gnu dev tree of 2.21.53.20110828 |
khays |
4968d 18h |
/ |
| 156 |
Optimized for timing,
Flattened block structure to single entity. |
jshamlet |
5001d 13h |
/ |
| 155 |
Fixed additional interrupt logic bug,
Optimized several blocks - including ALU, stack, program counter, and data path. |
jshamlet |
5002d 08h |
/ |
| 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 |
5007d 11h |
/ |
| 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 |
5034d 07h |
/ |
