# Copyright (c) 2021 Huawei Device Co., Ltd.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

.function i32 factorial (i32 a0) <> {    #Calculation of factorial from a value in register a0
    ldai.64 1
    sta.64 v8
while_1:
    lda.64 a0
    movi.64 v0, 1
    jle v0, endwhile_3
body_2:
    mul v8, a0
    sta.64 v8
    lda.64 a0
    subi 1
    sta.64 a0
    jmp while_1
endwhile_3:
    lda.64 v8
    return
}

.function i32 entry () <> {
    movi.64 v0, 7
    call.short factorial, v0
    return
}