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* jtag: Apply Martin Strubel JTAG implementation for ZPUjtagdbgAlvaro2011-09-0116-21/+1695
| | | | | | | | | | | | The current JTAG debugging capable ZPU implementation (VHDL) consists of: - A generic, device independent JTAG module (tck, tms, tdi, tdo, trst) - A TAP module, defining JTAG instruction and data registers - A few control lines to/from the core (request, execute, acknowledge, ready) and: * An emulation instruction register * A data exchange register - An enhanced ZPU small core state machine
* fix doc: opcode ULESSTHAN = 38Bert Lange2011-08-311-1/+1
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* beautify indentationBert Lange2011-08-1610-1651/+1482
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* change: prettier logifle outputBert Lange2011-08-022-61/+38
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* change: rename signal areset to resetBert Lange2011-08-026-10/+10
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* fix: remove note on not existing JTAG/hardware debuggerBert Lange2011-08-021-24/+0
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* fix: missing commentBert Lange2011-06-091-1/+1
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* change: switch to ieee.numeric_std.all libraryBert Lange2011-03-132-6/+4
| | | | Signed-off-by: Bert Lange <b.lange@hzdr.de>
* whitespace fixes: use fromdos on all .vhd filesØyvind Harboe2011-03-0137-22553/+22553
| | | | Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
* beautifyBert Lange2011-03-014-1576/+1679
| | | | Signed-off-by: Bert Lange <b.lange@hzdr.de>
* zpu_core_small: loadAlvaro2010-10-221-0/+1
| | | | | | | memAAddr is not being initialized during IO read operations (LOAD). This might cause spurious writes to invalid addresses, and invalid values to be loaded onto the stack. This patch explicitly sets memAAddr to correct value (sp).
* Avalanche ZPU implementationAntonio Anton2009-09-154-0/+2179
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* FreeRTOS portAntonio Anton2009-09-147-0/+791
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* Remove reference to zeta, only phi is used nowU-TEMPEST\oyvind2009-06-151-2/+2
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* git servers documentedOyvind Harboe2009-01-271-2/+5
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* First cut of ZPU floating point support designOyvind Harboe2009-01-271-0/+51
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* Test patchesOyvind Harboe2009-01-121-123/+63
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* Organizing document to make cleared seperation of architecture, ↵dez_ambrose2009-01-091-2150/+2383
| | | | implementations, and other design elements.
* test cleanupdez2009-01-092-1/+0
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* this is a testdez2009-01-091-0/+0
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* not empty nowdez2009-01-091-0/+1
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* this is a push testdez2009-01-091-0/+0
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* register stack wipoharboe2008-12-171-0/+56
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* wip - added LIFO to list of ideas for next gen ZPUoharboe2008-12-141-21/+29
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* 2008-11-12 Álvaro Lopes <alvieboy@alvie.com>oharboe2008-11-122-1/+34
| | | | | * zpu/hdl/zpu4/core/zpu_core.vhd: Basic interrupt implementation for zpu4 core.
* dmips test app in example folderoharboe2008-10-105-3652/+3301
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* a few words about the ZY1000 ZPU JTAG debuggeroharboe2008-10-101-0/+24
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* Álvaro Lopes <alvieboy@alvie.com> spi controlleroharboe2008-09-231-0/+235
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* small ZPUoharboe2008-09-231-0/+136
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* <alvieboy@gmail.com> Álvaro Lopes SPI flash controller documentationoharboe2008-09-234-0/+78
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* * zpu/hdl/zealot: added small ZPU core, testbenches and FPGA implementationoharboe2008-09-2110-284/+8682
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* * zpu/docs/zpu_arch.html: added Zealot information.oharboe2008-09-112-1/+85
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* 2008-09-08 Salvador Eduardo Tropea <salvador@inti.gov.ar>oharboe2008-09-0820-0/+11268
| | | | | * zpu/hdl/zealot: a complete ZPU implementation cleaned up and with a UART.
* a bit of info on implementing a UARToharboe2008-09-041-1/+9
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* commenting wipoharboe2008-08-261-4/+26
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* some more comments about dual port ramoharboe2008-08-261-0/+21
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* fixed comments a bit.oharboe2008-08-261-2/+1
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* testoharboe2008-08-251-1/+1
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* improved instructions on creating a patchoharboe2008-08-252-5/+18
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* 2008-08-25 Salvador Eduardo Tropea <salvador@inti.gov.ar>oharboe2008-08-252-2/+4
| | | | * Fix typo in zpu_arch.html w.r.t. ZPU UART/Debug channel
* more doc work in progressoharboe2008-08-225-0/+120
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* added uart sectionoharboe2008-08-221-4/+24
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* more docs merged into the big docoharboe2008-08-219-203/+203
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* added some notes on speeding up the ZPUoharboe2008-08-211-0/+41
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* merging in some docs to zpu_arch.htmloharboe2008-08-216-121/+98
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* wipoharboe2008-08-181-0/+11
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* very early work.oharboe2008-08-182-0/+900
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* * duplicated crt0.s and some other stuff from libgloss intooharboe2008-08-185-1/+1098
| | | | sw/startup. This makes it easier to tinker w/startup code.
* wipoharboe2008-08-181-5/+10
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* wipoharboe2008-08-161-2/+22
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