79 lines
3.4 KiB
C
79 lines
3.4 KiB
C
/*
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* LatticeMico32 instruction decoding macros.
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*
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* Copyright (c) 2010 Michael Walle <michael@walle.cc>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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/* Convenient binary macros */
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#define HEX__(n) 0x##n##LU
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#define B8__(x) (((x&0x0000000FLU) ? 1 : 0) \
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+ ((x&0x000000F0LU) ? 2 : 0) \
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+ ((x&0x00000F00LU) ? 4 : 0) \
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+ ((x&0x0000F000LU) ? 8 : 0) \
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+ ((x&0x000F0000LU) ? 16 : 0) \
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+ ((x&0x00F00000LU) ? 32 : 0) \
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+ ((x&0x0F000000LU) ? 64 : 0) \
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+ ((x&0xF0000000LU) ? 128 : 0))
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#define B8(d) ((unsigned char)B8__(HEX__(d)))
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/* Decode logic, value and mask. */
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#define DEC_ADD {B8(00001101), B8(00011111)}
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#define DEC_AND {B8(00001000), B8(00011111)}
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#define DEC_ANDHI {B8(00011000), B8(00111111)}
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#define DEC_B {B8(00110000), B8(00111111)}
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#define DEC_BI {B8(00111000), B8(00111111)}
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#define DEC_BE {B8(00010001), B8(00111111)}
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#define DEC_BG {B8(00010010), B8(00111111)}
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#define DEC_BGE {B8(00010011), B8(00111111)}
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#define DEC_BGEU {B8(00010100), B8(00111111)}
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#define DEC_BGU {B8(00010101), B8(00111111)}
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#define DEC_BNE {B8(00010111), B8(00111111)}
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#define DEC_CALL {B8(00110110), B8(00111111)}
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#define DEC_CALLI {B8(00111110), B8(00111111)}
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#define DEC_CMPE {B8(00011001), B8(00011111)}
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#define DEC_CMPG {B8(00011010), B8(00011111)}
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#define DEC_CMPGE {B8(00011011), B8(00011111)}
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#define DEC_CMPGEU {B8(00011100), B8(00011111)}
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#define DEC_CMPGU {B8(00011101), B8(00011111)}
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#define DEC_CMPNE {B8(00011111), B8(00011111)}
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#define DEC_DIVU {B8(00100011), B8(00111111)}
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#define DEC_LB {B8(00000100), B8(00111111)}
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#define DEC_LBU {B8(00010000), B8(00111111)}
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#define DEC_LH {B8(00000111), B8(00111111)}
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#define DEC_LHU {B8(00001011), B8(00111111)}
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#define DEC_LW {B8(00001010), B8(00111111)}
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#define DEC_MODU {B8(00110001), B8(00111111)}
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#define DEC_MUL {B8(00000010), B8(00011111)}
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#define DEC_NOR {B8(00000001), B8(00011111)}
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#define DEC_OR {B8(00001110), B8(00011111)}
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#define DEC_ORHI {B8(00011110), B8(00111111)}
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#define DEC_RAISE {B8(00101011), B8(00111111)}
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#define DEC_RCSR {B8(00100100), B8(00111111)}
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#define DEC_SB {B8(00001100), B8(00111111)}
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#define DEC_SEXTB {B8(00101100), B8(00111111)}
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#define DEC_SEXTH {B8(00110111), B8(00111111)}
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#define DEC_SH {B8(00000011), B8(00111111)}
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#define DEC_SL {B8(00001111), B8(00011111)}
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#define DEC_SR {B8(00000101), B8(00011111)}
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#define DEC_SRU {B8(00000000), B8(00011111)}
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#define DEC_SUB {B8(00110010), B8(00111111)}
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#define DEC_SW {B8(00010110), B8(00111111)}
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#define DEC_USER {B8(00110011), B8(00111111)}
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#define DEC_WCSR {B8(00110100), B8(00111111)}
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#define DEC_XNOR {B8(00001001), B8(00011111)}
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#define DEC_XOR {B8(00000110), B8(00011111)}
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