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[/] [openrisc/] [tags/] [or1ksim/] [or1ksim-0.5.0rc3/] [testsuite/] [test-code-or1k/] [inst-set-test/] [inst-set-test.h] - Rev 107
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/* inst-set-test.h. Macros for instruction set testing Copyright (C) 1999-2006 OpenCores Copyright (C) 2010 Embecosm Limited Contributors various OpenCores participants Contributor Jeremy Bennett <jeremy.bennett@embecosm.com> This file is part of OpenRISC 1000 Architectural Simulator. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http: www.gnu.org/licenses/>. */ /* ---------------------------------------------------------------------------- * Test coverage * * The l.lws instruction was omitted from Or1ksim originally. It is specified * for ORBIS32, even though it is functionally equivalent to l.lwz. * * Having fixed the problem, this is (in good software engineering style), a * regresison test to go with the fix. * * Of course what is really needed is a comprehensive instruction test... * ------------------------------------------------------------------------- */ #include "spr-defs.h" #include "board.h" /* ---------------------------------------------------------------------------- * Coding conventions * * A simple rising stack is provided starting at _stack and pointed to by * r1. r1 points to the next free word. Only 32-bit registers may be pushed * onto the stack. * * Local labels up to 49 are reserved for macros. Each is used only once in * all macros. You can get in a serious mess if you get local label clashing * in macros. * * Arguments to functions are passed in r3 through r8. * r9 is the link (return address) * r11 is for returning results * * Only r1 and r2 are preserved across function calls. It is up to the callee * to save any other registers required. * ------------------------------------------------------------------------- */ /* ---------------------------------------------------------------------------- * Useful constants * ------------------------------------------------------------------------- */ /* Indicator of completion */ #define ALL_DONE (0xdeaddead) /* Logical values */ #define TRUE 1 #define FALSE 0 /* ---------------------------------------------------------------------------- * Macro to push a register onto the stack * * r1 points to the next free slot. Push the supplied register on, then * advance the stack pointer. * * Arguments: * reg The register to push * * Registers modified * r1 * ------------------------------------------------------------------------- */ #define PUSH(reg) \ l.sw 0(r1),reg /* Push */ ;\ l.addi r1,r1,4 /* Advance the stack */ /* ---------------------------------------------------------------------------- * Macro to pop a register off the stack * * r1 points to the next free slot. Decrement the stack pointer, then pop the * requested register. * * Arguments: * reg The register to pop * * Registers modified * r1 * ------------------------------------------------------------------------- */ #define POP(reg) \ l.addi r1,r1,-4 /* Decrement the stack */ ;\ l.lws reg,0(r1) /* Pop */ /* ---------------------------------------------------------------------------- * Macro to load a 32-bit constant into a register * * Arguments: * reg The register to load * val The value to load * * ------------------------------------------------------------------------- */ #define LOAD_CONST(reg,val) \ l.movhi reg,hi(val) ;\ l.ori reg,reg,lo(val) /* ---------------------------------------------------------------------------- * Macro to define and load a pointer to a string * * Arguments: * reg The register to load * str The string * * ------------------------------------------------------------------------- */ #define LOAD_STR(reg,str) \ .section .rodata ;\ 1: ;\ .string str ;\ ;\ .section .text ;\ l.movhi reg,hi(1b) ;\ l.ori reg,reg,lo(1b) /* ---------------------------------------------------------------------------- * Macro to print a character * * Arguments: * c The character to print * ------------------------------------------------------------------------- */ #define PUTC(c) \ l.addi r3,r0,c ;\ l.nop NOP_PUTC /* ---------------------------------------------------------------------------- * Macro for recording the result of a test * * The test result is in r4. Print out the name of test indented two spaces, * followed by ": ", either "OK" or "Failed" and a newline. * * Arguments: * str Textual name of the test * reg The result to test (not r2) * val Desired result of the test * ------------------------------------------------------------------------- */ #define CHECK_RES(str,reg,val) \ .section .rodata ;\ 2: ;\ .string str ;\ ;\ .section .text ;\ PUSH (reg) /* Save the register to test */ ;\ ;\ LOAD_CONST (r3,2b) /* Print out the string */ ;\ l.jal _ptest ;\ l.nop ;\ ;\ LOAD_CONST(r2,val) /* The desired result */ ;\ POP (reg) /* The register to test */ ;\ PUSH (reg) /* May need again later */ ;\ l.sfeq r2,reg /* Does the result match? */ ;\ l.bf 3f ;\ l.nop ;\ ;\ l.jal _pfail /* Test failed */ ;\ l.nop ;\ POP (reg) /* Report the register */ ;\ l.add r3,r0,reg ;\ l.j 4f ;\ l.nop NOP_REPORT ;\ 3: ;\ POP (reg) /* Discard the register */ ;\ l.jal _pok /* Test succeeded */ ;\ l.nop ;\ 4: /* ---------------------------------------------------------------------------- * Macro for recording the result of a comparison * * If the flag is set print the string argument indented by 2 spaces, followed * by "TRUE" and a newline, otherwise print the string argument indented by * two spaces, followed by "FALSE" and a newline. * * Arguments: * str Textual name of the test * res Expected result (TRUE or FALSE) * ------------------------------------------------------------------------- */ #define CHECK_FLAG(str,res) \ .section .rodata ;\ 5: ;\ .string str ;\ ;\ .section .text ;\ l.bnf 7f /* Branch if result FALSE */ ;\ ;\ /* Branch for TRUE result */ ;\ LOAD_CONST (r3,5b) /* The string to print */ ;\ l.jal _ptest ;\ l.nop ;\ ;\ l.addi r2,r0,TRUE /* Was it expected? */ ;\ l.addi r3,r0,res ;\ l.sfeq r2,r3 ;\ l.bnf 6f /* Branch if not expected */ ;\ ;\ /* Sub-branch for TRUE found and expected */ ;\ l.jal _ptrue ;\ l.nop ;\ PUTC ('\n') ;\ l.j 9f ;\ l.nop ;\ 6: ;\ /* Sub-branch for TRUE found and not expected */ ;\ l.jal _ptrue ;\ l.nop ;\ l.jal _punexpected ;\ l.nop ;\ l.j 9f ;\ l.nop ;\ ;\ 7: ;\ /* Branch for FALSE result */ ;\ LOAD_CONST (r3,5b) /* The string to print */ ;\ l.jal _ptest ;\ l.nop ;\ ;\ l.addi r2,r0,FALSE /* Was it expected? */ ;\ l.addi r3,r0,res ;\ l.sfeq r2,r3 ;\ l.bnf 8f /* Branch if not expected */ ;\ ;\ /* Sub-branch for FALSE found and expected */ ;\ l.jal _pfalse ;\ l.nop ;\ PUTC ('\n') ;\ l.j 9f ;\ l.nop ;\ 8: ;\ /* Sub-branch for FALSE found and not expected */ ;\ l.jal _pfalse ;\ l.nop ;\ l.jal _punexpected ;\ l.nop ;\ 9: /* ---------------------------------------------------------------------------- * Macro to report 0xdeaddead and then terminate * ------------------------------------------------------------------------- */ #define TEST_EXIT \ l.movhi r3,hi(ALL_DONE) ;\ l.ori r3,r3,lo(ALL_DONE) ;\ l.nop NOP_REPORT ;\ ;\ l.addi r3,r0,0 ;\ l.nop NOP_EXIT
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