219 lines
5.2 KiB
C
Executable file
219 lines
5.2 KiB
C
Executable file
/*
|
|
* Instruction formats for the sequencer program downloaded to
|
|
* Aic7xxx SCSI host adapters
|
|
*
|
|
* Copyright (c) 1997, 1998, 2000 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.
|
|
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
|
|
* substantially similar to the "NO WARRANTY" disclaimer below
|
|
* ("Disclaimer") and any redistribution must be conditioned upon
|
|
* including a substantially similar Disclaimer requirement for further
|
|
* binary redistribution.
|
|
* 3. Neither the names of the above-listed copyright holders nor the names
|
|
* of any contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* Alternatively, this software may be distributed under the terms of the
|
|
* GNU General Public License ("GPL") version 2 as published by the Free
|
|
* Software Foundation.
|
|
*
|
|
* NO WARRANTY
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
|
|
*
|
|
* $Id: //depot/aic7xxx/aic7xxx/aicasm/aicasm_insformat.h#12 $
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include <asm/byteorder.h>
|
|
|
|
/* 8bit ALU logic operations */
|
|
struct ins_format1 {
|
|
#ifdef __LITTLE_ENDIAN
|
|
uint32_t immediate : 8,
|
|
source : 9,
|
|
destination : 9,
|
|
ret : 1,
|
|
opcode : 4,
|
|
parity : 1;
|
|
#else
|
|
uint32_t parity : 1,
|
|
opcode : 4,
|
|
ret : 1,
|
|
destination : 9,
|
|
source : 9,
|
|
immediate : 8;
|
|
#endif
|
|
};
|
|
|
|
/* 8bit ALU shift/rotate operations */
|
|
struct ins_format2 {
|
|
#ifdef __LITTLE_ENDIAN
|
|
uint32_t shift_control : 8,
|
|
source : 9,
|
|
destination : 9,
|
|
ret : 1,
|
|
opcode : 4,
|
|
parity : 1;
|
|
#else
|
|
uint32_t parity : 1,
|
|
opcode : 4,
|
|
ret : 1,
|
|
destination : 9,
|
|
source : 9,
|
|
shift_control : 8;
|
|
#endif
|
|
};
|
|
|
|
/* 8bit branch control operations */
|
|
struct ins_format3 {
|
|
#ifdef __LITTLE_ENDIAN
|
|
uint32_t immediate : 8,
|
|
source : 9,
|
|
address : 10,
|
|
opcode : 4,
|
|
parity : 1;
|
|
#else
|
|
uint32_t parity : 1,
|
|
opcode : 4,
|
|
address : 10,
|
|
source : 9,
|
|
immediate : 8;
|
|
#endif
|
|
};
|
|
|
|
/* 16bit ALU logic operations */
|
|
struct ins_format4 {
|
|
#ifdef __LITTLE_ENDIAN
|
|
uint32_t opcode_ext : 8,
|
|
source : 9,
|
|
destination : 9,
|
|
ret : 1,
|
|
opcode : 4,
|
|
parity : 1;
|
|
#else
|
|
uint32_t parity : 1,
|
|
opcode : 4,
|
|
ret : 1,
|
|
destination : 9,
|
|
source : 9,
|
|
opcode_ext : 8;
|
|
#endif
|
|
};
|
|
|
|
/* 16bit branch control operations */
|
|
struct ins_format5 {
|
|
#ifdef __LITTLE_ENDIAN
|
|
uint32_t opcode_ext : 8,
|
|
source : 9,
|
|
address : 10,
|
|
opcode : 4,
|
|
parity : 1;
|
|
#else
|
|
uint32_t parity : 1,
|
|
opcode : 4,
|
|
address : 10,
|
|
source : 9,
|
|
opcode_ext : 8;
|
|
#endif
|
|
};
|
|
|
|
/* Far branch operations */
|
|
struct ins_format6 {
|
|
#ifdef __LITTLE_ENDIAN
|
|
uint32_t page : 3,
|
|
opcode_ext : 5,
|
|
source : 9,
|
|
address : 10,
|
|
opcode : 4,
|
|
parity : 1;
|
|
#else
|
|
uint32_t parity : 1,
|
|
opcode : 4,
|
|
address : 10,
|
|
source : 9,
|
|
opcode_ext : 5,
|
|
page : 3;
|
|
#endif
|
|
};
|
|
|
|
union ins_formats {
|
|
struct ins_format1 format1;
|
|
struct ins_format2 format2;
|
|
struct ins_format3 format3;
|
|
struct ins_format4 format4;
|
|
struct ins_format5 format5;
|
|
struct ins_format6 format6;
|
|
uint8_t bytes[4];
|
|
uint32_t integer;
|
|
};
|
|
struct instruction {
|
|
union ins_formats format;
|
|
u_int srcline;
|
|
struct symbol *patch_label;
|
|
STAILQ_ENTRY(instruction) 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_MVI16 0x7
|
|
|
|
#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
|
|
|
|
/* 16bit Ops. Low byte main opcode. High byte extended opcode. */
|
|
#define AIC_OP_OR16 0x8005
|
|
#define AIC_OP_AND16 0x8105
|
|
#define AIC_OP_XOR16 0x8205
|
|
#define AIC_OP_ADD16 0x8305
|
|
#define AIC_OP_ADC16 0x8405
|
|
#define AIC_OP_JNE16 0x8805
|
|
#define AIC_OP_JNZ16 0x8905
|
|
#define AIC_OP_JE16 0x8C05
|
|
#define AIC_OP_JZ16 0x8B05
|
|
#define AIC_OP_JMP16 0x9005
|
|
#define AIC_OP_JC16 0x9105
|
|
#define AIC_OP_JNC16 0x9205
|
|
#define AIC_OP_CALL16 0x9305
|
|
|
|
/* Page extension is low three bits of second opcode byte. */
|
|
#define AIC_OP_JMPF 0xA005
|
|
#define AIC_OP_CALLF 0xB005
|
|
#define AIC_OP_JCF 0xC005
|
|
#define AIC_OP_JNCF 0xD005
|
|
#define AIC_OP_CMPXCHG 0xE005
|