1/** 2 * Copyright (c) 2021-2022 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16#define DEFAULT_SHORTY_PTR_REG rax 17#define DEFAULT_SHORTY_REG r10d 18 19.macro INIT_SHORTY_REG shorty_reg = %DEFAULT_SHORTY_REG, shorty_ptr_reg = %DEFAULT_SHORTY_PTR_REG 20 movzwl (\shorty_ptr_reg), \shorty_reg // read new shorty value and advance shorty_ptr 21 addq $2, \shorty_ptr_reg 22.endm 23 24.macro NEXT_SHORTY out_reg, shorty_reg = %DEFAULT_SHORTY_REG, shorty_ptr_reg = %DEFAULT_SHORTY_PTR_REG 25 cmpl $-1, \shorty_reg // check \shorty_reg = 0xFFFFFFFF 26 jne 1f 27 movzwl (\shorty_ptr_reg), \shorty_reg // read new shorty value and advance shorty_ptr 28 addq $2, \shorty_ptr_reg 291: 30 movl \shorty_reg, \out_reg 31 andl $0xF, \out_reg // extract next shorty value 32 shrl $4, \shorty_reg 33 orl $0xFFFFF000, \shorty_reg // fill the high 20 bits by 0xFFFFF 34.endm 35 36.macro SKIP_SHORTY shorty_reg = %DEFAULT_SHORTY_REG, shorty_ptr_reg = %DEFAULT_SHORTY_PTR_REG 37 cmpl $-1, \shorty_reg // check \shorty_reg = 0xFFFFFFFF 38 jne 1f 39 movzwl (\shorty_ptr_reg), \shorty_reg // read new shorty value and advance shorty_ptr 40 addq $2, \shorty_ptr_reg 411: 42 shrl $4, \shorty_reg 43 orl $0xFFFFF000, \shorty_reg // fill the high 20 bits by 0xFFFFF 44.endm 45