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3539d84d AB |
1 | /* |
2 | * Semihosting Tests - AArch64 helper | |
3 | * | |
4 | * Copyright (c) 2019 | |
5 | * Written by Alex Bennée <alex.bennee@linaro.org> | |
6 | * | |
7 | * SPDX-License-Identifier: GPL-3.0-or-later | |
8 | */ | |
9 | ||
10 | uintptr_t __semi_call(uintptr_t type, uintptr_t arg0) | |
11 | { | |
12 | register uintptr_t t asm("x0") = type; | |
13 | register uintptr_t a0 asm("x1") = arg0; | |
14 | asm("hlt 0xf000" | |
15 | : "=r" (t) | |
16 | : "r" (t), "r" (a0)); | |
17 | return t; | |
18 | } |