mirror of https://github.com/Treeki/WindEmu.git
23 lines
943 B
C
23 lines
943 B
C
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/* Copyright (c) 2013-2014 Jeffrey Pfau
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef ISA_INLINES_H
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#define ISA_INLINES_H
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#include "macros.h"
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#define ARM_SIGN(I) ((I) >> 31)
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#define ARM_SXT_8(I) (((int8_t) (I) << 24) >> 24)
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#define ARM_SXT_16(I) (((int16_t) (I) << 16) >> 16)
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#define ARM_UXT_64(I) (uint64_t)(uint32_t) (I)
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#define ARM_CARRY_FROM(M, N, D) (((uint32_t) (M) >> 31) + ((uint32_t) (N) >> 31) > ((uint32_t) (D) >> 31))
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#define ARM_BORROW_FROM(M, N, D) (((uint32_t) (M)) >= ((uint32_t) (N)))
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#define ARM_BORROW_FROM_CARRY(M, N, D, C) (ARM_UXT_64(M) >= (ARM_UXT_64(N)) + (uint64_t) (C))
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#define ARM_V_ADDITION(M, N, D) (!(ARM_SIGN((M) ^ (N))) && (ARM_SIGN((M) ^ (D))))
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#define ARM_V_SUBTRACTION(M, N, D) ((ARM_SIGN((M) ^ (N))) && (ARM_SIGN((M) ^ (D))))
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#endif
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