diff options
Diffstat (limited to 'drivers/scsi/aic7xxx_old/sequencer.h')
| -rw-r--r-- | drivers/scsi/aic7xxx_old/sequencer.h | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/drivers/scsi/aic7xxx_old/sequencer.h b/drivers/scsi/aic7xxx_old/sequencer.h new file mode 100644 index 000000000000..ee66855222b1 --- /dev/null +++ b/drivers/scsi/aic7xxx_old/sequencer.h @@ -0,0 +1,135 @@ +/* + * Instruction formats for the sequencer program downloaded to + * Aic7xxx SCSI host adapters + * + * Copyright (c) 1997, 1998 Justin T. Gibbs. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification, immediately at the beginning of the file. + * 2. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * Where this Software is combined with software released under the terms of + * the GNU General Public License ("GPL") and the terms of the GPL would require the + * combined work to also be released under the terms of the GPL, the terms + * and conditions of this License will apply in addition to those of the + * GPL with the exception of any terms or conditions of this License that + * conflict with, or are expressly prohibited by, the GPL. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $Id: sequencer.h,v 1.3 1997/09/27 19:37:31 gibbs Exp $ + */ + +#ifdef __LITTLE_ENDIAN_BITFIELD +struct ins_format1 { + unsigned int + immediate : 8, + source : 9, + destination : 9, + ret : 1, + opcode : 4, + parity : 1; +}; + +struct ins_format2 { + unsigned int + shift_control : 8, + source : 9, + destination : 9, + ret : 1, + opcode : 4, + parity : 1; +}; + +struct ins_format3 { + unsigned int + immediate : 8, + source : 9, + address : 10, + opcode : 4, + parity : 1; +}; +#elif defined(__BIG_ENDIAN_BITFIELD) +struct ins_format1 { + unsigned int + parity : 1, + opcode : 4, + ret : 1, + destination : 9, + source : 9, + immediate : 8; +}; + +struct ins_format2 { + unsigned int + parity : 1, + opcode : 4, + ret : 1, + destination : 9, + source : 9, + shift_control : 8; +}; + +struct ins_format3 { + unsigned int + parity : 1, + opcode : 4, + address : 10, + source : 9, + immediate : 8; +}; +#endif + +union ins_formats { + struct ins_format1 format1; + struct ins_format2 format2; + struct ins_format3 format3; + unsigned char bytes[4]; + unsigned int integer; +}; +struct instruction { + union ins_formats format; + unsigned int srcline; + struct symbol *patch_label; + struct { + struct instruction *stqe_next; + } links; +}; + +#define AIC_OP_OR 0x0 +#define AIC_OP_AND 0x1 +#define AIC_OP_XOR 0x2 +#define AIC_OP_ADD 0x3 +#define AIC_OP_ADC 0x4 +#define AIC_OP_ROL 0x5 +#define AIC_OP_BMOV 0x6 + +#define AIC_OP_JMP 0x8 +#define AIC_OP_JC 0x9 +#define AIC_OP_JNC 0xa +#define AIC_OP_CALL 0xb +#define AIC_OP_JNE 0xc +#define AIC_OP_JNZ 0xd +#define AIC_OP_JE 0xe +#define AIC_OP_JZ 0xf + +/* Pseudo Ops */ +#define AIC_OP_SHL 0x10 +#define AIC_OP_SHR 0x20 +#define AIC_OP_ROR 0x30 |