65363da25e
Tree structure: - sys/arch/sh3: sh3 generic code As commented, in-chip device drivers are put into sys/arch/sh3/dev. - sys/arch/evbsh3: sh3 evaluation boards (pure sh3 CPU, no fancy external HW) - sys/arch/mmeye: Brains mmEye, www.brains.co.jp MI source code includes couple of #ifdef for sh3-coff support. (sh3 uses coff or elf) Needs some more improvements, especialy in sys/arch/sh3/conf/files.sh3, to compile the tree (due to last minute tree structure change).
163 lines
2.1 KiB
C
163 lines
2.1 KiB
C
/* $NetBSD: sh_opcode.h,v 1.1 1999/09/13 10:31:22 itojun Exp $ */
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typedef union {
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unsigned word;
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#if BYTE_ORDER == BIG_ENDIAN
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struct {
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unsigned op: 16;
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} oType;
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struct {
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unsigned op1: 4;
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unsigned n: 4;
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unsigned op2: 8;
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} nType;
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struct {
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unsigned op1: 4;
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unsigned m: 4;
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unsigned op2: 8;
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} mType;
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struct {
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unsigned op1: 4;
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unsigned n: 4;
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unsigned m: 4;
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unsigned op2: 4;
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} nmType;
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struct {
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unsigned op: 8;
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unsigned m: 4;
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unsigned d: 4;
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} mdType;
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struct {
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unsigned op: 8;
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unsigned n: 4;
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unsigned d: 4;
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} nd4Type;
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struct {
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unsigned op: 4;
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unsigned n: 4;
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unsigned m: 4;
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unsigned d: 4;
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} nmdType;
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struct {
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unsigned op: 8;
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unsigned d: 8;
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} dType;
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struct {
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unsigned op: 4;
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unsigned d: 12;
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} d12Type;
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struct {
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unsigned op: 4;
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unsigned n: 4;
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unsigned d: 8;
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} nd8Type;
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struct {
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unsigned op: 8;
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unsigned i: 8;
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} iType;
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struct {
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unsigned op: 4;
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unsigned n: 4;
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unsigned i: 8;
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} niType;
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#endif
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#if BYTE_ORDER == LITTLE_ENDIAN
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struct {
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unsigned op: 16;
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} oType;
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struct {
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unsigned op2: 8;
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unsigned n: 4;
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unsigned op1: 4;
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} nType;
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struct {
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unsigned op2: 8;
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unsigned m: 4;
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unsigned op1: 4;
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} mType;
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struct {
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unsigned op2: 4;
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unsigned m: 4;
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unsigned n: 4;
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unsigned op1: 4;
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} nmType;
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struct {
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unsigned d: 4;
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unsigned m: 4;
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unsigned op: 8;
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} mdType;
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struct {
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unsigned d: 4;
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unsigned n: 4;
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unsigned op: 8;
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} nd4Type;
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struct {
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unsigned d: 4;
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unsigned m: 4;
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unsigned n: 4;
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unsigned op: 4;
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} nmdType;
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struct {
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unsigned d: 8;
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unsigned op: 8;
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} dType;
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struct {
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unsigned d: 12;
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unsigned op: 4;
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} d12Type;
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struct {
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unsigned d: 8;
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unsigned n: 4;
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unsigned op: 4;
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} nd8Type;
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struct {
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unsigned i: 8;
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unsigned op: 8;
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} iType;
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struct {
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unsigned i: 8;
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unsigned n: 4;
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unsigned op: 4;
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} niType;
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#endif
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} InstFmt;
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#define OP_BF 0x8b
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#define OP_BFS 0x8f
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#define OP_BT 0x89
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#define OP_BTS 0x8d
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#define OP_BRA 0xa
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#define OP_BSR 0xb
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#define OP1_BRAF 0x0
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#define OP2_BRAF 0x23
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#define OP1_BSRF 0x0
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#define OP2_BSRF 0x03
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#define OP1_JMP 0x4
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#define OP2_JMP 0x2b
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#define OP1_JSR 0x4
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#define OP2_JSR 0x0b
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#define OP_RTS 0xffff
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