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Diffstat (limited to 'target/microblaze/microblaze-decode.h')
| -rw-r--r-- | target/microblaze/microblaze-decode.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/target/microblaze/microblaze-decode.h b/target/microblaze/microblaze-decode.h new file mode 100644 index 0000000..401319e --- /dev/null +++ b/target/microblaze/microblaze-decode.h @@ -0,0 +1,55 @@ +/* + * MicroBlaze insn decoding macros. + * + * Copyright (c) 2009 Edgar E. Iglesias <edgar.iglesias@gmail.com> + * + * 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(00000000), B8(00110001)} +#define DEC_SUB {B8(00000001), B8(00110001)} +#define DEC_AND {B8(00100001), B8(00110101)} +#define DEC_XOR {B8(00100010), B8(00110111)} +#define DEC_OR {B8(00100000), B8(00110111)} +#define DEC_BIT {B8(00100100), B8(00111111)} +#define DEC_MSR {B8(00100101), B8(00111111)} + +#define DEC_BARREL {B8(00010001), B8(00110111)} +#define DEC_MUL {B8(00010000), B8(00110111)} +#define DEC_DIV {B8(00010010), B8(00110111)} +#define DEC_FPU {B8(00010110), B8(00111111)} + +#define DEC_LD {B8(00110000), B8(00110100)} +#define DEC_ST {B8(00110100), B8(00110100)} +#define DEC_IMM {B8(00101100), B8(00111111)} + +#define DEC_BR {B8(00100110), B8(00110111)} +#define DEC_BCC {B8(00100111), B8(00110111)} +#define DEC_RTS {B8(00101101), B8(00111111)} + +#define DEC_STREAM {B8(00010011), B8(00110111)} + |