mirror of https://github.com/OpenRCT2/OpenRCT2.git
97 lines
1.7 KiB
C
97 lines
1.7 KiB
C
/*****************************************************************************
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* Copyright (c) 2014-2018 OpenRCT2 developers
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*
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* For a complete list of all authors, please refer to contributors.md
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* Interested in contributing? Visit https://github.com/OpenRCT2/OpenRCT2
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*
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* OpenRCT2 is licensed under the GNU General Public License version 3.
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*****************************************************************************/
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#pragma once
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#ifndef NO_RCT2
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# include <openrct2/common.h>
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enum
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{
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X86_FLAG_CARRY = 1 << 0,
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X86_FLAG_PARITY = 1 << 2,
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X86_FLAG_ADJUST = 1 << 4,
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X86_FLAG_ZERO = 1 << 6,
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X86_FLAG_SIGN = 1 << 7,
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};
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/**
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* x86 register structure, only used for easy interop to RCT2 code.
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*/
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# pragma pack(push, 1)
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struct registers
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{
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union
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{
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int32_t eax;
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int16_t ax;
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struct
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{
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char al;
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char ah;
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};
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};
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union
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{
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int32_t ebx;
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int16_t bx;
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struct
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{
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char bl;
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char bh;
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};
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};
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union
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{
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int32_t ecx;
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int16_t cx;
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struct
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{
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char cl;
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char ch;
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};
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};
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union
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{
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int32_t edx;
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int16_t dx;
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struct
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{
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char dl;
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char dh;
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};
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};
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union
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{
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int32_t esi;
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int16_t si;
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};
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union
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{
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int32_t edi;
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int16_t di;
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};
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union
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{
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int32_t ebp;
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int16_t bp;
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};
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};
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assert_struct_size(registers, 7 * 4);
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# pragma pack(pop)
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using hook_function = uint8_t (*)(registers* regs);
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void addhook(uintptr_t address, hook_function function);
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#endif
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