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/* inst-set-test.h. Macros for instruction set testing
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Copyright (C) 1999-2006 OpenCores
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Copyright (C) 2010 Embecosm Limited
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Contributors various OpenCores participants
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Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>
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This file is part of OpenRISC 1000 Architectural Simulator.
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This program is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3 of the License, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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You should have received a copy of the GNU General Public License along
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with this program. If not, see <http: www.gnu.org/licenses/>. */
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#include "spr-defs.h"
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#include "board.h"
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/* ----------------------------------------------------------------------------
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116 |
jeremybenn |
* Coding conventions are described in inst-set-test.S
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jeremybenn |
* ------------------------------------------------------------------------- */
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/* ----------------------------------------------------------------------------
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* Useful constants
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* ------------------------------------------------------------------------- */
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/* Indicator of completion */
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#define ALL_DONE (0xdeaddead)
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/* Logical values */
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#define TRUE 1
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#define FALSE 0
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/* ----------------------------------------------------------------------------
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* Macro to push a register onto the stack
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*
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* r1 points to the next free slot. Push the supplied register on, then
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* advance the stack pointer.
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*
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* Arguments:
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* reg The register to push
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*
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* Registers modified
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* r1
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* ------------------------------------------------------------------------- */
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#define PUSH(reg) \
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l.sw 0(r1),reg /* Push */ ;\
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l.addi r1,r1,4 /* Advance the stack */
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/* ----------------------------------------------------------------------------
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* Macro to pop a register off the stack
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*
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* r1 points to the next free slot. Decrement the stack pointer, then pop the
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* requested register.
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*
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* Arguments:
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* reg The register to pop
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*
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* Registers modified
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* r1
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* ------------------------------------------------------------------------- */
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#define POP(reg) \
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l.addi r1,r1,-4 /* Decrement the stack */ ;\
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l.lws reg,0(r1) /* Pop */
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/* ----------------------------------------------------------------------------
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* Macro to load a 32-bit constant into a register
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*
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* Arguments:
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* reg The register to load
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* val The value to load
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*
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* ------------------------------------------------------------------------- */
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#define LOAD_CONST(reg,val) \
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l.movhi reg,hi(val) ;\
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l.ori reg,reg,lo(val)
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/* ----------------------------------------------------------------------------
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* Macro to define and load a pointer to a string
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*
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* Arguments:
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* reg The register to load
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* str The string
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*
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* ------------------------------------------------------------------------- */
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#define LOAD_STR(reg,str) \
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.section .rodata ;\
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1: ;\
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.string str ;\
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;\
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.section .text ;\
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l.movhi reg,hi(1b) ;\
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l.ori reg,reg,lo(1b)
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/* ----------------------------------------------------------------------------
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* Macro to print a character
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*
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* Arguments:
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* c The character to print
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* ------------------------------------------------------------------------- */
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#define PUTC(c) \
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l.addi r3,r0,c ;\
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l.nop NOP_PUTC
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/* ----------------------------------------------------------------------------
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116 |
jeremybenn |
* Macro to print a string
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*
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* Arguments:
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* s The string to print
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* ------------------------------------------------------------------------- */
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#define PUTS(s) \
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LOAD_STR (r3, s) ;\
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PUSH (r9) ;\
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l.jal _puts ;\
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l.nop ;\
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POP (r9)
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/* ----------------------------------------------------------------------------
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* Macro to print a hex value
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*
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* Arguments:
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* v The value to print
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* ------------------------------------------------------------------------- */
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#define PUTH(v) \
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LOAD_CONST (r3, v) ;\
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PUSH (r9) ;\
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l.jal _puth ;\
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l.nop ;\
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POP (r9)
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/* ----------------------------------------------------------------------------
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107 |
jeremybenn |
* Macro for recording the result of a test
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*
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jeremybenn |
* The test result is in reg. Print out the name of test indented two spaces,
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jeremybenn |
* followed by ": ", either "OK" or "Failed" and a newline.
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*
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* Arguments:
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* str Textual name of the test
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* reg The result to test (not r2)
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* val Desired result of the test
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* ------------------------------------------------------------------------- */
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#define CHECK_RES(str,reg,val) \
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.section .rodata ;\
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2: ;\
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.string str ;\
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;\
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.section .text ;\
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PUSH (reg) /* Save the register to test */ ;\
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;\
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LOAD_CONST (r3,2b) /* Print out the string */ ;\
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l.jal _ptest ;\
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l.nop ;\
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;\
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LOAD_CONST(r2,val) /* The desired result */ ;\
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POP (reg) /* The register to test */ ;\
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PUSH (reg) /* May need again later */ ;\
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l.sfeq r2,reg /* Does the result match? */ ;\
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l.bf 3f ;\
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l.nop ;\
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;\
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l.jal _pfail /* Test failed */ ;\
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l.nop ;\
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POP (reg) /* Report the register */ ;\
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l.add r3,r0,reg ;\
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l.j 4f ;\
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l.nop NOP_REPORT ;\
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3: ;\
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POP (reg) /* Discard the register */ ;\
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l.jal _pok /* Test succeeded */ ;\
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l.nop ;\
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4:
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/* ----------------------------------------------------------------------------
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* Macro for recording the result of a comparison
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*
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* If the flag is set print the string argument indented by 2 spaces, followed
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* by "TRUE" and a newline, otherwise print the string argument indented by
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* two spaces, followed by "FALSE" and a newline.
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*
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* Arguments:
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* str Textual name of the test
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* res Expected result (TRUE or FALSE)
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* ------------------------------------------------------------------------- */
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#define CHECK_FLAG(str,res) \
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.section .rodata ;\
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5: ;\
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.string str ;\
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;\
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.section .text ;\
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l.bnf 7f /* Branch if result FALSE */ ;\
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;\
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/* Branch for TRUE result */ ;\
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LOAD_CONST (r3,5b) /* The string to print */ ;\
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l.jal _ptest ;\
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l.nop ;\
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;\
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l.addi r2,r0,TRUE /* Was it expected? */ ;\
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l.addi r3,r0,res ;\
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l.sfeq r2,r3 ;\
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l.bnf 6f /* Branch if not expected */ ;\
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;\
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/* Sub-branch for TRUE found and expected */ ;\
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l.jal _ptrue ;\
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l.nop ;\
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PUTC ('\n') ;\
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l.j 9f ;\
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l.nop ;\
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6: ;\
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/* Sub-branch for TRUE found and not expected */ ;\
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l.jal _ptrue ;\
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l.nop ;\
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l.jal _punexpected ;\
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l.nop ;\
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l.j 9f ;\
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l.nop ;\
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;\
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7: ;\
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/* Branch for FALSE result */ ;\
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LOAD_CONST (r3,5b) /* The string to print */ ;\
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l.jal _ptest ;\
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l.nop ;\
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;\
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l.addi r2,r0,FALSE /* Was it expected? */ ;\
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l.addi r3,r0,res ;\
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l.sfeq r2,r3 ;\
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l.bnf 8f /* Branch if not expected */ ;\
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;\
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/* Sub-branch for FALSE found and expected */ ;\
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l.jal _pfalse ;\
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l.nop ;\
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PUTC ('\n') ;\
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l.j 9f ;\
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l.nop ;\
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8: ;\
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/* Sub-branch for FALSE found and not expected */ ;\
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l.jal _pfalse ;\
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l.nop ;\
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l.jal _punexpected ;\
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l.nop ;\
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9:
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/* ----------------------------------------------------------------------------
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116 |
jeremybenn |
* Macro for recording the result of a test (in two regs)
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*
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* The test result is in reg1 and reg2. Print out the name of test indented
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* two spaces, followed by ": ", either "OK" or "Failed" and a newline.
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*
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* Arguments:
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* str Textual name of the test
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* reg1 The result to test (not r2)
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* reg2 The result to test (not r2)
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* val1 Desired result of the test
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* val2 Desired result of the test
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* ------------------------------------------------------------------------- */
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#define CHECK_RES2(reg1, reg2, val1, val2) \
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PUSH (reg2) /* Save the test registers */ ;\
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PUSH (reg1) ;\
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;\
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LOAD_CONST(r2,val1) /* First desired result */ ;\
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POP (reg1) /* First register to test */ ;\
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PUSH (reg1) /* May need again later */ ;\
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l.sfeq r2,reg1 /* Does the result match? */ ;\
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l.bf 10f ;\
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l.nop ;\
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;\
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/* First register failed. */ ;\
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l.jal _pfail /* Test failed */ ;\
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l.nop ;\
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POP (reg1) /* Report the registers */ ;\
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l.add r3,r0,reg1 ;\
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l.nop NOP_REPORT ;\
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POP (reg2) /* Report the registers */ ;\
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l.add r3,r0,reg2 ;\
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l.j 12f ;\
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l.nop NOP_REPORT ;\
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;\
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/* First register matched, check the second */ ;\
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10: ;\
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LOAD_CONST(r2,val2) /* Second desired result */ ;\
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POP (reg1) /* First register to test */ ;\
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POP (reg2) /* Second register to test */ ;\
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PUSH (reg2) /* May need again later */ ;\
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PUSH (reg1) /* May need again later */ ;\
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l.sfeq r2,reg2 /* Does the result match? */ ;\
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l.bf 11f ;\
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l.nop ;\
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;\
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/* Second register failed. */ ;\
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l.jal _pfail /* Test failed */ ;\
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l.nop ;\
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POP (reg1) /* Report the registers */ ;\
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l.add r3,r0,reg1 ;\
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l.nop NOP_REPORT ;\
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POP (reg2) /* Report the registers */ ;\
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l.add r3,r0,reg2 ;\
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l.j 12f ;\
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l.nop NOP_REPORT ;\
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;\
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/* Both registers passed */ ;\
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11: ;\
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POP (reg1) /* Discard the registers */ ;\
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POP (reg2) /* Discard the registers */ ;\
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l.jal _pok /* Test succeeded */ ;\
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l.nop ;\
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12:
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/* ----------------------------------------------------------------------------
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107 |
jeremybenn |
* Macro to report 0xdeaddead and then terminate
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| 320 |
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* ------------------------------------------------------------------------- */
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#define TEST_EXIT \
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l.movhi r3,hi(ALL_DONE) ;\
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l.ori r3,r3,lo(ALL_DONE) ;\
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l.nop NOP_REPORT ;\
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;\
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l.addi r3,r0,0 ;\
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l.nop NOP_EXIT
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