MIPS: inst.h: Eleminate per endianess structure definitions.
This makes space for further growth of the header without excessive bloat. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Ralf Baechle
parent
90e8cacdbe
commit
85dfaf0831
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@ -196,154 +196,100 @@ enum lx_func {
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* Damn ... bitfields depend from byteorder :-(
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*/
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#ifdef __MIPSEB__
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struct j_format { /* Jump format */
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unsigned int opcode : 6;
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unsigned int target : 26;
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};
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struct i_format { /* Immediate format (addi, lw, ...) */
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unsigned int opcode : 6;
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unsigned int rs : 5;
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unsigned int rt : 5;
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signed int simmediate : 16;
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};
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struct u_format { /* Unsigned immediate format (ori, xori, ...) */
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unsigned int opcode : 6;
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unsigned int rs : 5;
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unsigned int rt : 5;
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unsigned int uimmediate : 16;
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};
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struct c_format { /* Cache (>= R6000) format */
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unsigned int opcode : 6;
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unsigned int rs : 5;
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unsigned int c_op : 3;
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unsigned int cache : 2;
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unsigned int simmediate : 16;
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};
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struct r_format { /* Register format */
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unsigned int opcode : 6;
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unsigned int rs : 5;
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unsigned int rt : 5;
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unsigned int rd : 5;
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unsigned int re : 5;
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unsigned int func : 6;
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};
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struct p_format { /* Performance counter format (R10000) */
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unsigned int opcode : 6;
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unsigned int rs : 5;
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unsigned int rt : 5;
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unsigned int rd : 5;
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unsigned int re : 5;
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unsigned int func : 6;
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};
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struct f_format { /* FPU register format */
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unsigned int opcode : 6;
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unsigned int : 1;
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unsigned int fmt : 4;
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unsigned int rt : 5;
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unsigned int rd : 5;
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unsigned int re : 5;
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unsigned int func : 6;
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};
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struct ma_format { /* FPU multiply and add format (MIPS IV) */
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unsigned int opcode : 6;
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unsigned int fr : 5;
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unsigned int ft : 5;
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unsigned int fs : 5;
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unsigned int fd : 5;
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unsigned int func : 4;
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unsigned int fmt : 2;
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};
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struct b_format { /* BREAK and SYSCALL */
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unsigned int opcode:6;
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unsigned int code:20;
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unsigned int func:6;
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};
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#define BITFIELD_FIELD(field, more) \
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field; \
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more
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#elif defined(__MIPSEL__)
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struct j_format { /* Jump format */
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unsigned int target : 26;
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unsigned int opcode : 6;
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};
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struct i_format { /* Immediate format */
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signed int simmediate : 16;
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unsigned int rt : 5;
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unsigned int rs : 5;
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unsigned int opcode : 6;
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};
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struct u_format { /* Unsigned immediate format */
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unsigned int uimmediate : 16;
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unsigned int rt : 5;
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unsigned int rs : 5;
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unsigned int opcode : 6;
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};
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struct c_format { /* Cache (>= R6000) format */
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unsigned int simmediate : 16;
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unsigned int cache : 2;
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unsigned int c_op : 3;
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unsigned int rs : 5;
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unsigned int opcode : 6;
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};
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struct r_format { /* Register format */
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unsigned int func : 6;
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unsigned int re : 5;
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unsigned int rd : 5;
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unsigned int rt : 5;
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unsigned int rs : 5;
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unsigned int opcode : 6;
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};
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struct p_format { /* Performance counter format (R10000) */
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unsigned int func : 6;
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unsigned int re : 5;
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unsigned int rd : 5;
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unsigned int rt : 5;
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unsigned int rs : 5;
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unsigned int opcode : 6;
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};
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struct f_format { /* FPU register format */
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unsigned int func : 6;
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unsigned int re : 5;
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unsigned int rd : 5;
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unsigned int rt : 5;
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unsigned int fmt : 4;
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unsigned int : 1;
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unsigned int opcode : 6;
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};
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struct ma_format { /* FPU multiply and add format (MIPS IV) */
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unsigned int fmt : 2;
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unsigned int func : 4;
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unsigned int fd : 5;
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unsigned int fs : 5;
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unsigned int ft : 5;
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unsigned int fr : 5;
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unsigned int opcode : 6;
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};
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struct b_format { /* BREAK and SYSCALL */
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unsigned int func:6;
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unsigned int code:20;
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unsigned int opcode:6;
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};
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#define BITFIELD_FIELD(field, more) \
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more \
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field;
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#else /* !defined (__MIPSEB__) && !defined (__MIPSEL__) */
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#error "MIPS but neither __MIPSEL__ nor __MIPSEB__?"
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#endif
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struct j_format {
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BITFIELD_FIELD(unsigned int opcode : 6, /* Jump format */
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BITFIELD_FIELD(unsigned int target : 26,
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;))
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};
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struct i_format { /* signed immediate format */
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BITFIELD_FIELD(unsigned int opcode : 6,
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BITFIELD_FIELD(unsigned int rs : 5,
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BITFIELD_FIELD(unsigned int rt : 5,
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BITFIELD_FIELD(signed int simmediate : 16,
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;))))
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};
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struct u_format { /* unsigned immediate format */
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BITFIELD_FIELD(unsigned int opcode : 6,
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BITFIELD_FIELD(unsigned int rs : 5,
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BITFIELD_FIELD(unsigned int rt : 5,
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BITFIELD_FIELD(unsigned int uimmediate : 16,
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;))))
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};
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struct c_format { /* Cache (>= R6000) format */
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BITFIELD_FIELD(unsigned int opcode : 6,
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BITFIELD_FIELD(unsigned int rs : 5,
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BITFIELD_FIELD(unsigned int c_op : 3,
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BITFIELD_FIELD(unsigned int cache : 2,
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BITFIELD_FIELD(unsigned int simmediate : 16,
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;)))))
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};
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struct r_format { /* Register format */
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BITFIELD_FIELD(unsigned int opcode : 6,
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BITFIELD_FIELD(unsigned int rs : 5,
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BITFIELD_FIELD(unsigned int rt : 5,
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BITFIELD_FIELD(unsigned int rd : 5,
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BITFIELD_FIELD(unsigned int re : 5,
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BITFIELD_FIELD(unsigned int func : 6,
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;))))))
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};
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struct p_format { /* Performance counter format (R10000) */
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BITFIELD_FIELD(unsigned int opcode : 6,
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BITFIELD_FIELD(unsigned int rs : 5,
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BITFIELD_FIELD(unsigned int rt : 5,
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BITFIELD_FIELD(unsigned int rd : 5,
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BITFIELD_FIELD(unsigned int re : 5,
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BITFIELD_FIELD(unsigned int func : 6,
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;))))))
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};
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struct f_format { /* FPU register format */
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BITFIELD_FIELD(unsigned int opcode : 6,
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BITFIELD_FIELD(unsigned int : 1,
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BITFIELD_FIELD(unsigned int fmt : 4,
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BITFIELD_FIELD(unsigned int rt : 5,
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BITFIELD_FIELD(unsigned int rd : 5,
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BITFIELD_FIELD(unsigned int re : 5,
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BITFIELD_FIELD(unsigned int func : 6,
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;)))))))
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};
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struct ma_format { /* FPU multiply and add format (MIPS IV) */
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BITFIELD_FIELD(unsigned int opcode : 6,
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BITFIELD_FIELD(unsigned int fr : 5,
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BITFIELD_FIELD(unsigned int ft : 5,
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BITFIELD_FIELD(unsigned int fs : 5,
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BITFIELD_FIELD(unsigned int fd : 5,
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BITFIELD_FIELD(unsigned int func : 4,
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BITFIELD_FIELD(unsigned int fmt : 2,
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;)))))))
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};
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struct b_format { /* BREAK and SYSCALL */
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BITFIELD_FIELD(unsigned int opcode : 6,
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BITFIELD_FIELD(unsigned int code : 20,
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BITFIELD_FIELD(unsigned int func : 6,
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;)))
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};
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union mips_instruction {
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unsigned int word;
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unsigned short halfword[2];
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