Hello All,

I would like to know where I can find example programs in assembly for the OR1K processor. I have downloaded the examples in the OVP site but I am looking for something a little more complex. Thank you and regards.

Cleber

Hi cleber,

You can see the start-up code for the newlib library (newlib/libgloss/or32/crt0.S I think). Or1ksim also has small assembler examples in its testsuite.

HTH,

Jeremy

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Hi Jeremy,

There is also the or1k-support-asm.S file in the newlib/libc/machine/or32 path in the newlib port directory. However, I can´t seem to find the newlib port directory. Would you have a direct link to it you can pass me? Thank you,

Regards,
Cleber.

Found it! Thanks.

Hi Cleber,

Here is the browsable SVN link: http://opencores.org/websvn,filedetails?repname=openrisc&path=%2Fopenrisc%2Ftrunk%2Fgnu-stable%2Fnewlib-1.18.0%2Flibgloss%2For32%2Fcrt0.S.

The development tool chain on GitHub may have a newer version. Someone else might post a link, or ask on IRC (channel #openrisc on freenode.net).

HTH,


Jeremy

Hi,
I have some starter asm files at "Misc Stuff" on my web page:
http://www.meansoffreedom.com/

The kernel and lib files mentioned by Jeremy do much more of course. The idea of my starter files was to try and help beginners get started with OR assembly. They may be a litte stale but provide some insight into using the GNU AS & etc.

HTH,

Rich d

Hello Jeremy, rdaddio,

My name is Cleber. I am a researcher at the Brazilian Federal Institute of Metrology. We are starting a new field of research on microprocessors, and I just bought the FPGA Development Board from OpenCores with the OpenRISC processor SoC design embedded. I am trying to compile a assembler file to run on the board. I compiled some C files and run them without any problems using:
or32-elf-gcc �mboard=ordb2a cfile.c �o cfile_hw
I, of course, tried something like this for asm files:
or32-elf-as �mboard=ordb2a cfile.c �o cfile_hw
But it didn´t work. Do you guys know how I can compile asm files for the board? And where I can maybe find some nice examples on a tutorial format? Any help would be appreciated! Jeremy, I will be trying to reach you by direct mail, if you don´t mind. Thanks a lot in advance.
Best regards,
Cleber Gomes.

ERRATA:
or32-elf-as �mboard=ordb2a asmfile.S �o asmfile_hw
sorry :-)

Hi Cleber, Sorry to take so long to reply was traveling. Did your questions get answered out-of-band by Jeremy?