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                              Or1ksim Test Suite
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                              ==================
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This is the Or1ksim test suite, which is now integrated with the main Or1ksim
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development package. It operates using a standard DejaGNU framework within the
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GNU autoconf/automake/libtool structure.
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A separate configuration file is needed for the OpenRISC programs used in
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testing, since these use the OR1K tool chain, rather than the host tool
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chain. This can be found in the "test-code-or1k" directory.
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Tests are provided for the standalone simulator (or1ksim) and for the library
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(libsim.a).
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At the time of writing a total of 2,537 tests compile, run and pass. That
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figure is broken down into 2,275 tests of the standalone simulator and 262
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tests of the library
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Configuration and make files are provided for further test programs. These
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come in three categories.
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- Tests which compile correctly, but will not run to completion.
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- Tests which compile, but will not run at all.
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- Tests which will not compile correctly.
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File Organization
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=================
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Each test program has its own directory under test-code (for native tests,
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typically of the library) or test-code-or1k (for OpenRISC code, which must use
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the OpenRISC tool chain). This builds the test program. If necessary it copies
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data files to the main build/testsuite directory.
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Each test then has a DejaGNU expect script in or1ksim.tests (for standalone
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tests) and libsim.tests (for library tests), which loads and runs the
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test. Support script procedures are in lib/or1ksim.exp and lib/libsim.exp.
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Libraries
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=========
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Within the test-code there are several libraries:
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support:    A minimal C library.
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except:     Exception handling and startup code.
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mc-common:  A library to support the memory controller tests.
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Working tests
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=============
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A total of 2,275 tests of standalone Or1ksim:
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basic:             8 tests of a wide range of instructions and registers.
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cache:             5 tests of the Or1ksim cache modeling
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cbasic:           19 tests of minimal C functionality
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cfg:              12 tests of the OR1K configuration register
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dhry:              1 Dhrystone 2.1 benchmark using Or1ksim's timing facility.
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dmatest:           3 tests of DMA.
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eth:              12 tests of the Ethernet interface.
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except-test:       7 tests of OR1K exception handling
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exit:              1 test that C program exits correctly
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ext:             104 tests of the sign extension (l.ext) instructions.
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fbtest:            1 test of the frame buffer.
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fp               337 tests of floating point functionality (Feature 413).
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functest:         11 tests of the C function calling interface.
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flag:              1 test of Supervision Register (SR) flag bits.
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int-test:         86 tests of the programmable interrupt controller.
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kbdtest:          26 tests of the PS2 keyboard interface.
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local-global:      1 test of C local and global variables.
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inst-set-test:       A collection of tests of individual instructions
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  is-add-test    213 tests of the l.add* instructions (Bugs 1771, 1776)
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  is-and-test     80 tests of the l.and* instructions (Bugs 1782-1784)
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  is-div-test:   101 tests of the l.div and l.divu instructions (Bug 1770).
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  is-find-test:   14 tests of the l.ff1 and l.fl1 instructions (Bug 1772).
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  is-jump-test:   27 tests of the jump instructions (Bug 1775).
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  is-lws-test:    13 tests of the l.lws instruction (Bug 1767).
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  is-mac-test:   189 tests of the MAC instructions (Bugs 1773, 1777).
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  is-mul-test:   186 tests of the l.mul* instructions (Bug 1774).
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  is-or-test      80 tests of the l.or* instructions (Bugs 1782-1784)
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  is-ror-test:    36 tests of the l.ror and l.rori instructions (Bug 1778).
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  is-shift-test: 344 tests of the shift instructions (Bug 1782-1784).
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  is-spr-test:    28 tests of the l.mfspr and l.mtspr instructions (Bug 1779).
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  is-sub-test     58 tests of the l.sub instruction (Bugs 1782-1784)
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  is-xor-test     80 tests of the l.xor* instructions (Bugs 1782-1784)
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mem-test:         16 tests of simple memory access.
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mmu:             110 tests of the MMU.
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mul:               5 tests of the multiply functionality.
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mycompress:        1 test using a compression program.
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testfloat         40 tests of detailed floating point behavior
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tick:             19 tests of the OR1K tick timer.
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A total of 262 tests of the libsim library:
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int-edge:               6 tests of edge triggered interrupts.
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int-level:              3 tests of level triggered interrupts.
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lib-iftest:             1 test  of the basic library interface functions.
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jtag-basic:            17 tests of JTAG reset and instruction selection
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jtag-go-command-read:  60 tests of JTAG GO_COMMAND for reading
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jtag-go-command-write: 54 tests of JTAG GO_COMMAND for writing
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jtag-read-command:     18 tests of JTAG READ_COMMAND
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jtag-read-control:      8 tests of JTAG READ_CONTROL
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jtag-select-module:    20 tests of JTAG module selection
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jtag-write-command:    58 tests of JTAG WRITE_COMMAND
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jtag-write-control:    13 tests of JTAG WRITE_CONTROL
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upcalls:                2 tests of the upcall interface.
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Tests which build, but do not run to completion
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===============================================
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The following tests of standalone Or1ksim rely on VAPI in Or1ksim, so need a
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client to provide test data over TCP/IP.
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acv-gpio:  a test of the GPIO.
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acv-uart:  a test of the UART
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Tests which build, but do not run at all
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========================================
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These tests of standalone Or1ksim (which are built by the make file), do not
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appear to run at all. The problem is in the linker script and/or the
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configuration for Or1ksim.
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mc-async:  a test of the memory controller with asynchronous memory.
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mc-dram:   a test of the memory controller with DRAM.
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mc-ssram:  a test of the memory controller with SSRAM.
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mc-sync:   a test of the memory controller with synchronous memory.
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uOS:       a microKernel.
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Tests which do not build
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========================
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The following test of standalone Or1ksim builds with a myriad of warnings.
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inst-set-test:  a comprehensive test of the instruction set using C.
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Updated by Jeremy Bennett (jeremy@jeremybennett.com)
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13 June 2010

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