| /* | |
| * Semihosting Tests - RiscV64 Helper | |
| * | |
| * Copyright (c) 2021, 2024 | |
| * Written by Alex Bennée <alex.bennee@linaro.org> | |
| * | |
| * SPDX-License-Identifier: GPL-2.0-or-later | |
| */ | |
| uintptr_t __semi_call(uintptr_t type, uintptr_t arg0) | |
| { | |
| register uintptr_t t asm("a0") = type; | |
| register uintptr_t a0 asm("a1") = arg0; | |
| asm(".option norvc\n\t" | |
| ".balign 16\n\t" | |
| "slli zero, zero, 0x1f\n\t" | |
| "ebreak\n\t" | |
| "srai zero, zero, 0x7\n\t" | |
| : "=r" (t) | |
| : "r" (t), "r" (a0)); | |
| return t; | |
| } |