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Diffstat (limited to 'target-lm32/lm32-decode.h')
-rw-r--r-- | target-lm32/lm32-decode.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/target-lm32/lm32-decode.h b/target-lm32/lm32-decode.h new file mode 100644 index 0000000000..f745b39626 --- /dev/null +++ b/target-lm32/lm32-decode.h @@ -0,0 +1,78 @@ +/* + * LatticeMico32 instruction decoding macros. + * + * Copyright (c) 2010 Michael Walle <michael@walle.cc> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see <http://www.gnu.org/licenses/>. + */ + +/* Convenient binary macros */ +#define HEX__(n) 0x##n##LU +#define B8__(x) (((x&0x0000000FLU) ? 1 : 0) \ + + ((x&0x000000F0LU) ? 2 : 0) \ + + ((x&0x00000F00LU) ? 4 : 0) \ + + ((x&0x0000F000LU) ? 8 : 0) \ + + ((x&0x000F0000LU) ? 16 : 0) \ + + ((x&0x00F00000LU) ? 32 : 0) \ + + ((x&0x0F000000LU) ? 64 : 0) \ + + ((x&0xF0000000LU) ? 128 : 0)) +#define B8(d) ((unsigned char)B8__(HEX__(d))) + +/* Decode logic, value and mask. */ +#define DEC_ADD {B8(00001101), B8(00011111)} +#define DEC_AND {B8(00001000), B8(00011111)} +#define DEC_ANDHI {B8(00011000), B8(00111111)} +#define DEC_B {B8(00110000), B8(00111111)} +#define DEC_BI {B8(00111000), B8(00111111)} +#define DEC_BE {B8(00010001), B8(00111111)} +#define DEC_BG {B8(00010010), B8(00111111)} +#define DEC_BGE {B8(00010011), B8(00111111)} +#define DEC_BGEU {B8(00010100), B8(00111111)} +#define DEC_BGU {B8(00010101), B8(00111111)} +#define DEC_BNE {B8(00010111), B8(00111111)} +#define DEC_CALL {B8(00110110), B8(00111111)} +#define DEC_CALLI {B8(00111110), B8(00111111)} +#define DEC_CMPE {B8(00011001), B8(00011111)} +#define DEC_CMPG {B8(00011010), B8(00011111)} +#define DEC_CMPGE {B8(00011011), B8(00011111)} +#define DEC_CMPGEU {B8(00011100), B8(00011111)} +#define DEC_CMPGU {B8(00011101), B8(00011111)} +#define DEC_CMPNE {B8(00011111), B8(00011111)} +#define DEC_DIVU {B8(00100011), B8(00111111)} +#define DEC_LB {B8(00000100), B8(00111111)} +#define DEC_LBU {B8(00010000), B8(00111111)} +#define DEC_LH {B8(00000111), B8(00111111)} +#define DEC_LHU {B8(00001011), B8(00111111)} +#define DEC_LW {B8(00001010), B8(00111111)} +#define DEC_MODU {B8(00110001), B8(00111111)} +#define DEC_MUL {B8(00000010), B8(00011111)} +#define DEC_NOR {B8(00000001), B8(00011111)} +#define DEC_OR {B8(00001110), B8(00011111)} +#define DEC_ORHI {B8(00011110), B8(00111111)} +#define DEC_RAISE {B8(00101011), B8(00111111)} +#define DEC_RCSR {B8(00100100), B8(00111111)} +#define DEC_SB {B8(00001100), B8(00111111)} +#define DEC_SEXTB {B8(00101100), B8(00111111)} +#define DEC_SEXTH {B8(00110111), B8(00111111)} +#define DEC_SH {B8(00000011), B8(00111111)} +#define DEC_SL {B8(00001111), B8(00011111)} +#define DEC_SR {B8(00000101), B8(00011111)} +#define DEC_SRU {B8(00000000), B8(00011111)} +#define DEC_SUB {B8(00110010), B8(00111111)} +#define DEC_SW {B8(00010110), B8(00111111)} +#define DEC_USER {B8(00110011), B8(00111111)} +#define DEC_WCSR {B8(00110100), B8(00111111)} +#define DEC_XNOR {B8(00001001), B8(00011111)} +#define DEC_XOR {B8(00000110), B8(00011111)} + |