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* Correct use of uninitialized dt_d.num_rd and delete reported by valgrind.Pavel Pisa2019-03-12
| | | | Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Updated read and write, added open, close, ftruncate syscalls and fs_root ↵Pavel Pisa2019-03-09
| | | | | | | | | | | option. When operating system emulation root directory (fs_root) are selected then open() syscall opens real host system files in this limited subtree. When fs_root is not set then console is mapped to all read, write, open and close calls. Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Enable configuration of syscalls emulation and stop on exception.Pavel Pisa2019-03-06
| | | | Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Complete revamp of disassembler and assembler arguments processing.Pavel Pisa2019-03-05
| | | | | | | | | | | | | | | | | | | | | Instructions description in instruction.cpp has been pragmatically augmented by tool based on Python MIPS simulator, hazards analyzer https://github.com/ppisa/apo-simarch That code has been originally distilled from from GNU binutils sources. Implementation is now inline with my original proposal Previous solution gets untenable with more complex instructions and its complexity would grow extremely. MIPS instruction set with coprocessor instructions which use sel field, rd used as index, rt as destination and other peculiarities in newer versions cannot be processed based on basic CPU control signals. Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Dock to view coprocessor 0 and cop0 counter/comparator support.Pavel Pisa2019-03-05
| | | | Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Use irq 3 (HW1) for Rx and irq 2 (HW0) for Tx to be compatible with SPIM.Pavel Pisa2019-03-04
| | | | | | | Jump to address 0x8000180 by default and to EBase + 0x180 when EBase is set to be compatible with real MIPS CPU. Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Implemented interrupt delivery and processing for serial port.Pavel Pisa2019-03-04
| | | | Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Simple serial port receive implementation.Pavel Pisa2019-02-25
| | | | | | | | | Simple polled mode serial port input implemented for serial port peripheral and for read and readv system calls. When end of input character reserve is reached for read/readv, newline is automatically appended. Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Add some more labels and clarify rs, rt, rd in execute stage.Pavel Pisa2019-02-24
| | | | | | | This allows simple visual compare of rs and rt in execution stage with register number to be written in memory and write-back stages. Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Add action to show symbols into pull down menu.Pavel Pisa2019-02-22
| | | | Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Add support for goto to selected symbol address.Pavel Pisa2019-02-22
| | | | Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Add burst time and store timing in the config.Pavel Pisa2019-02-21
| | | | Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Adjust label of PC to R31 and add jump to reg.Pavel Pisa2019-02-20
| | | | Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Distinguish between write-through cache with allocate and update only if hit.Pavel Pisa2019-02-20
| | | | | | | Add into cache statistic number of backing/main memory accesses. Correction of meaning and computation of the cache statistic. Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Update project files to adapt for release and debug libraries location for ↵Pavel Pisa2019-02-19
| | | | | | Windows builds. Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Update MultiText to use setPointSize too.Pavel Pisa2019-02-19
| | | | Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* pointSize -> pixelSizeFanda Vacek2019-02-19
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* variable font sizeFanda Vacek2019-02-19
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* The sizeHint seems to not be affected by invisible zero size problem.Pavel Pisa2019-02-19
| | | | | | | | Enable number of columns computation even for invisible QLabels to restore wide registers dock with multiple columns instead of only one. Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Add unlimited checkbox to the tool-bar.Pavel Pisa2019-02-18
| | | | Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Report forward and stall for branches and add forward to execution phase.Pavel Pisa2019-02-18
| | | | Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Visualize request to stall and stall in execution phase and exception sources.Pavel Pisa2019-02-18
| | | | Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Update homepage to point to CVUT GitHub repository.Pavel Pisa2019-02-18
| | | | Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Change RGB LEDs signals and slots to unsigned value.Pavel Pisa2019-02-16
| | | | | | | Signed value caused in the conversion incorrect behavior for some corner cases. Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Enable copy from memory and program views.Pavel Pisa2019-02-15
| | | | Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* The conversion of address has to use toULong to allow access to the second ↵Pavel Pisa2019-02-14
| | | | | | part of address-space on 32-bit systems. Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Position hit and miss counters to left to fit in the diagram box a little ↵Pavel Pisa2019-02-14
| | | | | | longer. Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Implemented graphic representation and update of line and RGB LEDs.Pavel Pisa2019-02-14
| | | | Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Implement write syscall and signal written characters to terminal.Pavel Pisa2019-02-14
| | | | Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Initial attempt to as operating system syscall handler.Pavel Pisa2019-02-13
| | | | Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Use trick to force knobs to resend signals when machine is newly connected.Pavel Pisa2019-02-13
| | | | | | The value is forced to change one step down and then up. Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Implemented three dials equivalent to MZ_APO RGB dials.Pavel Pisa2019-02-13
| | | | | | | Tested with code compiled by Linux PIC based GCC compiler with calling musl-libc sprintf function. Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Include simple serial port terminal and prepare empty peripheral dock.Pavel Pisa2019-02-13
| | | | Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Add simple about dialog and prepare menu entries for serial port and ↵Pavel Pisa2019-02-13
| | | | | | peripherals. Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Add speed option to run core for time chunks without visualization.Pavel Pisa2019-02-13
| | | | Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* At least partial solution to depict forward paths to compare units/branches.Pavel Pisa2019-02-12
| | | | Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Add signals and multiplexers for ALU inputs forwarding.Pavel Pisa2019-02-12
| | | | Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Add ELF library even to the final executables linking to allow build with ↵Pavel Pisa2019-02-12
| | | | | | static machine lib. Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Make memory and program listing editable.Pavel Pisa2019-02-12
| | | | | | Instruction parsing is rough and does not support branch offset computation. Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Add debug access to rword and friends to allow read data through cache ↵Pavel Pisa2019-02-12
| | | | | | | | without disturbing statistic. This allows to switch view between CPU and raw memory content. Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Display red background for instruction causing exception and skip HW ↵Pavel Pisa2019-02-11
| | | | | | | | | | breakpoint for first cycle after resume. Instruction for stage is updated when given stage is flushed as well. But other signals are left intact, it is duty of memory stage to discard effect of instruction causing interrupt. Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Basic "hardware" breakpoints support implemented.Pavel Pisa2019-02-11
| | | | | | | | | | It works like real inserted breakpoint on hardware. Breakpoint has to be removed to allow code continue because else instruction is refetch and breakpoint triggers again. The single step function should resolve temporal masking of the breakpoint. Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Extend program view to support selected stage followup.Pavel Pisa2019-02-11
| | | | Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Converted program listing to be QTableView based.Pavel Pisa2019-02-11
| | | | Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* QTableView based memory view is working.Pavel Pisa2019-02-11
| | | | Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Implemented workaround QTableView limits workaround which mostly works.Pavel Pisa2019-02-10
| | | | Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Memory QTableView working for part of the memory range.Pavel Pisa2019-02-10
| | | | | | | | | Unfortunately, QModelIndex supports only integers for rows and columns. Even if only size to maxint is used then Qt engine crashes. Workaround for Qt limitations is material for followup patches. Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Next steps to implement QTableView based memory view.Pavel Pisa2019-02-10
| | | | Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
* Correct MemoryDock header fields values.Fanda Vacek2019-02-09
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* Initial cleanup of MemoryDock as preparation for switch to QTableView.Pavel Pisa2019-02-09
| | | | Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
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