38 lines
2.5 KiB
C
38 lines
2.5 KiB
C
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ This program is free software; you can redistribute it and/or modify │
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│ it under the terms of the GNU General Public License as published by │
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│ the Free Software Foundation; version 2 of the License. │
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│ │
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│ This program is distributed in the hope that it will be useful, but │
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│ WITHOUT ANY WARRANTY; without even the implied warranty of │
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│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
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│ General Public License for more details. │
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│ │
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│ You should have received a copy of the GNU General Public License │
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│ along with this program; if not, write to the Free Software │
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│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
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│ 02110-1301 USA │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "tool/build/lib/modrm.h"
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/**
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* Byte register offsets.
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*
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* for (i = 0; i < 2; ++i) { // rex
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* for (j = 0; j < 2; ++j) { // rexb, or rexr
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* for (k = 0; k < 8; ++k) { // reg, rm, or srm
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* kByteReg[i << 4 | j << 3 | k] =
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* i ? (j << 3 | k) * 8 : (k & 0b11) * 8 + ((k & 0b100) >> 2);
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* }
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* }
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* }
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*/
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const uint8_t kByteReg[32] = {0x00, 0x08, 0x10, 0x18, 0x01, 0x09, 0x11, 0x19,
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0x00, 0x08, 0x10, 0x18, 0x01, 0x09, 0x11, 0x19,
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0x00, 0x08, 0x10, 0x18, 0x20, 0x28, 0x30, 0x38,
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0x40, 0x48, 0x50, 0x58, 0x60, 0x68, 0x70, 0x78};
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