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                              Or1ksim Test Suite

                              ==================

This is the Or1ksim test suite, which is now integrated with the main Or1ksim

development package. It operates using a standard DejaGNU framework within the

GNU autoconf/automake/libtool structure.

A separate configuration file is needed for the OpenRISC programs used in

testing, since these use the OR1K tool chain, rather than the host tool

chain. This can be found in the "test-code-or1k" directory.

Tests are provided for the standalone simulator (or1ksim) and for the library

(libsim.a).

At the time of writing a total of 1,100 tests compile, run and pass. That

figure is broken down into 836 tests of the standalone simulator and 264 tests

of the library

Configuration and make files are provided for further test programs. These

come in three categories.

- Tests which compile correctly, but will not run to completion.

- Tests which compile, but will not run at all.

- Tests which will not compile correctly.

File Organization

=================

Each test program has its own directory under test-code (for native tests,

typically of the library) or test-code-or1k (for OpenRISC code, which must use

the OpenRISC tool chain). This builds the test program. If necessary it copies

data files to the main build/testsuite directory.

Each test then has a DejaGNU expect script in or1ksim.tests (for standalone

tests) and libsim.tests (for library tests), which loads and runs the

test. Support script procedures are in lib/or1ksim.exp and lib/libsim.exp.

Libraries

=========

Within the test-code there are several libraries:

support:    A minimal C library.

except:     Exception handling and startup code.

mc-common:  A library to support the memory controller tests.

Working tests

=============

A total of 836 tests of standalone Or1ksim:

basic:             8 tests of a wide range of instructions and registers.

cache:             5 tests of the Or1ksim cache modeling

cbasic:           19 tests of minimal C functionality

cfg:              12 tests of the OR1K configuration register

dhry:              1 Dhrystone 2.1 benchmark using Or1ksim's timing facility.

dmatest:           3 tests of DMA.

eth:              12 tests of the Ethernet interface.

except-test:       7 tests of OR1K exception handling

exit:              1 test that C program exits correctly

ext:             104 tests of the sign extension (l.ext) instructions.

fbtest:            1 test of the frame buffer.

fp               337 tests of floating point functionality (Feature 413).

functest:         11 tests of the C function calling interface.

flag:              1 test of Supervision Register (SR) flag bits.

int-test:         86 tests of the programmable interrupt controller.

kbdtest:          26 tests of the PS2 keyboard interface.

local-global:      1 test of C local and global variables.

inst-set-test:       A collection of tests of individual instructions

  is-add-test     33 tests of the l.add* instructions (Bugs)

  is-div-test:     4 tests of the l.div and l.divu instruction (Bug 1770).

  is-lws-test:    13 tests of the l.lws instruction (Bug 1767).

mem-test:         16 tests of simple memory access.

mmu:             110 tests of the MMU.

mul:               5 tests of the multiply functionality.

mycompress:        1 test using a compression program.

tick:             19 tests of the OR1K tick timer.

A total of 264 tests of the libsim library:

int-edge:               6 tests of edge triggered interrupts.

int-level:              5 tests of level triggered interrupts.

lib-iftest:             1 test  of the basic library interface functions.

jtag-basic:            17 tests of JTAG reset and instruction selection

jtag-go-command-read:  60 tests of JTAG GO_COMMAND for reading

jtag-go-command-write: 54 tests of JTAG GO_COMMAND for writing

jtag-read-command:     18 tests of JTAG READ_COMMAND

jtag-read-control:      8 tests of JTAG READ_CONTROL

jtag-select-module:    20 tests of JTAG module selection

jtag-write-command:    58 tests of JTAG WRITE_COMMAND

jtag-write-control:    13 tests of JTAG WRITE_CONTROL

upcalls:                2 tests of the upcall interface.

Tests which build, but do not run to completion

===============================================

The following tests of standalone Or1ksim rely on VAPI in Or1ksim, so need a

client to provide test data over TCP/IP.

acv-gpio:  a test of the GPIO.

acv-uart:  a test of the UART

Tests which build, but do not run at all

========================================

These tests of standalone Or1ksim (which are built by the make file), do not

appear to run at all. The problem is in the linker script and/or the

configuration for Or1ksim.

mc-async:  a test of the memory controller with asynchronous memory.

mc-dram:   a test of the memory controller with DRAM.

mc-ssram:  a test of the memory controller with SSRAM.

mc-sync:   a test of the memory controller with synchronous memory.

uOS:       a microKernel.

Tests which do not build

========================

The following test of standalone Or1ksim builds with a myriad of warnings.

inst-set-test:  a comprehensive test of the instruction set using C.

Updated by Jeremy Bennett (jeremy@jeremybennett.com)

3 June 2010