1# Copyright (C) 2016-2020 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
101