sim/testsuite/pru/testutils.inc

   1 # Copyright (C) 2016-2022 Free Software Foundation, Inc.
   2 # Contributed by Dimitar Dimitrov <dimitar@dinux.eu>
   3 #
   4 # This file is part of the GNU simulators.
   5 #
   6 # This program is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 3 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 # MACRO: start
  20 # All assembler tests should start with a call to "main_test"
  21         .macro start
  22         .text
  23
  24         .global _start
  25 _start:
  26
  27         # Skip over these inlined funcs.
  28         jmp __main_test;
  29
  30         .global __pass
  31         .type __pass, function
  32 __pass:
  33         # Note - DRAM LMA and VMA are equal for PRU, so
  34         # we can afford to pass DRAM pointer directly.
  35         write 1, _passmsg, 5
  36         exit 0
  37
  38         .global __fail
  39         .type __fail, function
  40 __fail:
  41         write 1, _failmsg, 5
  42         exit 1
  43
  44         .data
  45 _passmsg:
  46         .ascii "pass\n"
  47
  48 _failmsg:
  49         .ascii "fail\n"
  50
  51         .text
  52         .global __main_test
  53         .type __main_test, function
  54 __main_test:
  55         .endm
  56
  57 # MACRO: system_call
  58 # Make a libgloss system call
  59         .macro system_call nr:req, arg1=0, arg2=0, arg3=0
  60         ldi r1, \nr
  61         ldi r14, \arg1
  62         ldi r15, \arg2
  63         ldi r16, \arg3
  64         halt
  65         .endm
  66
  67 # MACRO: exit
  68 # Quit the current test
  69         .macro exit rc:req
  70         system_call 1, \rc
  71         .endm
  72
  73 # MACRO: pass
  74 # Write 'pass' to stdout via syscalls and quit;
  75 # meant for non-OS operating environments
  76         .macro pass
  77         jmp __pass;
  78         .endm
  79
  80 # MACRO: fail
  81 # Write 'fail' to stdout via syscalls and quit;
  82 # meant for non-OS operating environments
  83         .macro fail
  84         jmp __fail;
  85         .endm
  86
  87 # MACRO: write
  88 # Just like the write() C function; uses system calls
  89         .macro write fd:req, str:req, len:req
  90         system_call 5, \fd, \str, \len
  91         .endm
  92
  93 # MACRO: qbne32
  94 # Like qbne instruction, but check a 32-bit constant value.
  95         .macro qbne32 label:req, op0:req, C0:req
  96         qbne \label, \op0\().b0, ((\C0) >> 0) & 0xff
  97         qbne \label, \op0\().b1, ((\C0) >> 8) & 0xff
  98         qbne \label, \op0\().b2, ((\C0) >> 16) & 0xff
  99         qbne \label, \op0\().b3, ((\C0) >> 24) & 0xff
 100         .endm