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Relicense to 0BSD

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MerryMage
2020-04-23 15:25:11 +01:00
parent d51a83d265
commit a8a712c801
286 changed files with 574 additions and 1035 deletions
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53
src/backend/x64/abi.cpp
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@@ -1,18 +1,7 @@
// Copyright (C) 2003 Dolphin Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0 or later versions.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// 24th August 2016: This code was modified for Dynarmic.
/* This file is part of the dynarmic project.
* Copyright (c) 2020 MerryMage
* SPDX-License-Identifier: 0BSD
*/
#include <algorithm>
#include <vector>
@@ -26,36 +15,28 @@
namespace Dynarmic::Backend::X64 {
constexpr size_t GPR_SIZE = 8;
constexpr size_t XMM_SIZE = 16;
struct FrameInfo {
size_t stack_subtraction = 0;
size_t xmm_offset = 0;
size_t stack_subtraction;
size_t xmm_offset;
size_t frame_offset;
};
static FrameInfo CalculateFrameInfo(size_t num_gprs, size_t num_xmms, size_t frame_size) {
FrameInfo frame_info = {};
// We are initially 8 byte aligned because the return value is pushed onto an aligned stack after a call.
const size_t rsp_alignment = (num_gprs % 2 == 0) ? 8 : 0;
const size_t total_xmm_size = num_xmms * XMM_SIZE;
size_t rsp_alignment = 8; // We are always 8-byte aligned initially
rsp_alignment -= num_gprs * GPR_SIZE;
if (num_xmms > 0) {
frame_info.stack_subtraction = rsp_alignment & 0xF;
frame_info.stack_subtraction += num_xmms * XMM_SIZE;
if (frame_size & 0xF) {
frame_size += 0x10 - (frame_size & 0xF);
}
size_t xmm_base = frame_info.stack_subtraction;
frame_info.stack_subtraction += frame_size;
frame_info.stack_subtraction += ABI_SHADOW_SPACE;
rsp_alignment -= frame_info.stack_subtraction;
frame_info.stack_subtraction += rsp_alignment & 0xF;
frame_info.xmm_offset = frame_info.stack_subtraction - xmm_base;
return frame_info;
return {
rsp_alignment + total_xmm_size + frame_size + ABI_SHADOW_SPACE,
frame_size + ABI_SHADOW_SPACE,
ABI_SHADOW_SPACE,
};
}
template<typename RegisterArrayT>