mmx.h
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上传日期:2007-01-06
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文件大小:22k
- /* mmx.h
- MultiMedia eXtensions GCC interface library for IA32.
- To use this library, simply include this header file
- and compile with GCC. You MUST have inlining enabled
- in order for mmx_ok() to work; this can be done by
- simply using -O on the GCC command line.
- Compiling with -DMMX_TRACE will cause detailed trace
- output to be sent to stderr for each mmx operation.
- This adds lots of code, and obviously slows execution to
- a crawl, but can be very useful for debugging.
- THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY
- EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
- LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY
- AND FITNESS FOR ANY PARTICULAR PURPOSE.
- 1997-98 by H. Dietz and R. Fisher
- History:
- 97-98* R.Fisher Early versions
- 980501 R.Fisher Original Release
- 980611* H.Dietz Rewrite, correctly implementing inlines, and
- R.Fisher including direct register accesses.
- 980616 R.Fisher Release of 980611 as 980616.
- 980714 R.Fisher Minor corrections to Makefile, etc.
- 980715 R.Fisher mmx_ok() now prevents optimizer from using
- clobbered values.
- mmx_ok() now checks if cpuid instruction is
- available before trying to use it.
- 980726* R.Fisher mm_support() searches for AMD 3DNow, Cyrix
- Extended MMX, and standard MMX. It returns a
- value which is positive if any of these are
- supported, and can be masked with constants to
- see which. mmx_ok() is now a call to this
- 980726* R.Fisher Added i2r support for shift functions
- 980919 R.Fisher Fixed AMD extended feature recognition bug.
- 980921 R.Fisher Added definition/check for _MMX_H.
- Added "float s[2]" to mmx_t for use with
- 3DNow and EMMX. So same mmx_t can be used.
- 981013 R.Fisher Fixed cpuid function 1 bug (looked at wrong reg)
- Fixed psllq_i2r error in mmxtest.c
- * Unreleased (internal or interim) versions
- Notes:
- It appears that the latest gas has the pand problem fixed, therefore
- I'll undefine BROKEN_PAND by default.
- String compares may be quicker than the multiple test/jumps in vendor
- test sequence in mmx_ok(), but I'm not concerned with that right now.
- Acknowledgments:
- Jussi Laako for pointing out the errors ultimately found to be
- connected to the failure to notify the optimizer of clobbered values.
- Roger Hardiman for reminding us that CPUID isn't everywhere, and that
- someone may actually try to use this on a machine without CPUID.
- Also for suggesting code for checking this.
- Robert Dale for pointing out the AMD recognition bug.
- Jimmy Mayfield and Carl Witty for pointing out the Intel recognition
- bug.
- Carl Witty for pointing out the psllq_i2r test bug.
- */
- #ifndef _MMX_H
- #define _MMX_H
- /* Warning: at this writing, the version of GAS packaged
- with most Linux distributions does not handle the
- parallel AND operation mnemonic correctly. If the
- symbol BROKEN_PAND is defined, a slower alternative
- coding will be used. If execution of mmxtest results
- in an illegal instruction fault, define this symbol.
- */
- #undef BROKEN_PAND
- /* The type of an value that fits in an MMX register
- (note that long long constant values MUST be suffixed
- by LL and unsigned long long values by ULL, lest
- they be truncated by the compiler)
- */
- typedef union {
- long long q; /* Quadword (64-bit) value */
- unsigned long long uq; /* Unsigned Quadword */
- int d[2]; /* 2 Doubleword (32-bit) values */
- unsigned int ud[2]; /* 2 Unsigned Doubleword */
- short w[4]; /* 4 Word (16-bit) values */
- unsigned short uw[4]; /* 4 Unsigned Word */
- char b[8]; /* 8 Byte (8-bit) values */
- unsigned char ub[8]; /* 8 Unsigned Byte */
- float s[2]; /* Single-precision (32-bit) value */
- } mmx_t;
- /* Function to test if multimedia instructions are supported...
- */
- inline extern int
- mm_support(void)
- {
- /* Returns 1 if MMX instructions are supported,
- 3 if Cyrix MMX and Extended MMX instructions are supported
- 5 if AMD MMX and 3DNow! instructions are supported
- 0 if hardware does not support any of these
- */
- register int rval = 0;
- __asm__ __volatile__ (
- /* See if CPUID instruction is supported ... */
- /* ... Get copies of EFLAGS into eax and ecx */
- "pushfnt"
- "popl %%eaxnt"
- "movl %%eax, %%ecxnt"
- /* ... Toggle the ID bit in one copy and store */
- /* to the EFLAGS reg */
- "xorl $0x200000, %%eaxnt"
- "push %%eaxnt"
- "popfnt"
- /* ... Get the (hopefully modified) EFLAGS */
- "pushfnt"
- "popl %%eaxnt"
- /* ... Compare and test result */
- "xorl %%eax, %%ecxnt"
- "testl $0x200000, %%ecxnt"
- "jz NotSupported1nt" /* Nothing supported */
- /* Get standard CPUID information, and
- go to a specific vendor section */
- "movl $0, %%eaxnt"
- "cpuidnt"
- /* Check for Intel */
- "cmpl $0x756e6547, %%ebxnt"
- "jne TryAMDnt"
- "cmpl $0x49656e69, %%edxnt"
- "jne TryAMDnt"
- "cmpl $0x6c65746e, %%ecxn"
- "jne TryAMDnt"
- "jmp Intelnt"
- /* Check for AMD */
- "nTryAMD:nt"
- "cmpl $0x68747541, %%ebxnt"
- "jne TryCyrixnt"
- "cmpl $0x69746e65, %%edxnt"
- "jne TryCyrixnt"
- "cmpl $0x444d4163, %%ecxn"
- "jne TryCyrixnt"
- "jmp AMDnt"
- /* Check for Cyrix */
- "nTryCyrix:nt"
- "cmpl $0x69727943, %%ebxnt"
- "jne NotSupported2nt"
- "cmpl $0x736e4978, %%edxnt"
- "jne NotSupported3nt"
- "cmpl $0x64616574, %%ecxnt"
- "jne NotSupported4nt"
- /* Drop through to Cyrix... */
- /* Cyrix Section */
- /* See if extended CPUID is supported */
- "movl $0x80000000, %%eaxnt"
- "cpuidnt"
- "cmpl $0x80000000, %%eaxnt"
- "jl MMXtestnt" /* Try standard CPUID instead */
- /* Extended CPUID supported, so get extended features */
- "movl $0x80000001, %%eaxnt"
- "cpuidnt"
- "testl $0x00800000, %%eaxnt" /* Test for MMX */
- "jz NotSupported5nt" /* MMX not supported */
- "testl $0x01000000, %%eaxnt" /* Test for Ext'd MMX */
- "jnz EMMXSupportednt"
- "movl $1, %0:nnt" /* MMX Supported */
- "jmp Returnnn"
- "EMMXSupported:nt"
- "movl $3, %0:nnt" /* EMMX and MMX Supported */
- "jmp Returnnt"
- /* AMD Section */
- "AMD:nt"
- /* See if extended CPUID is supported */
- "movl $0x80000000, %%eaxnt"
- "cpuidnt"
- "cmpl $0x80000000, %%eaxnt"
- "jl MMXtestnt" /* Try standard CPUID instead */
- /* Extended CPUID supported, so get extended features */
- "movl $0x80000001, %%eaxnt"
- "cpuidnt"
- "testl $0x00800000, %%edxnt" /* Test for MMX */
- "jz NotSupported6nt" /* MMX not supported */
- "testl $0x80000000, %%edxnt" /* Test for 3DNow! */
- "jnz ThreeDNowSupportednt"
- "movl $1, %0:nnt" /* MMX Supported */
- "jmp Returnnn"
- "ThreeDNowSupported:nt"
- "movl $5, %0:nnt" /* 3DNow! and MMX Supported */
- "jmp Returnnt"
- /* Intel Section */
- "Intel:nt"
- /* Check for MMX */
- "MMXtest:nt"
- "movl $1, %%eaxnt"
- "cpuidnt"
- "testl $0x00800000, %%edxnt" /* Test for MMX */
- "jz NotSupported7nt" /* MMX Not supported */
- "movl $1, %0:nnt" /* MMX Supported */
- "jmp Returnnt"
- /* Nothing supported */
- "nNotSupported1:nt"
- "#movl $101, %0:nnt"
- "nNotSupported2:nt"
- "#movl $102, %0:nnt"
- "nNotSupported3:nt"
- "#movl $103, %0:nnt"
- "nNotSupported4:nt"
- "#movl $104, %0:nnt"
- "nNotSupported5:nt"
- "#movl $105, %0:nnt"
- "nNotSupported6:nt"
- "#movl $106, %0:nnt"
- "nNotSupported7:nt"
- "#movl $107, %0:nnt"
- "movl $0, %0:nnt"
- "Return:nt"
- : "=a" (rval)
- : /* no input */
- : "eax", "ebx", "ecx", "edx"
- );
- /* Return */
- return(rval);
- }
- /* Function to test if mmx instructions are supported...
- */
- inline extern int
- mmx_ok(void)
- {
- /* Returns 1 if MMX instructions are supported, 0 otherwise */
- return ( mm_support() & 0x1 );
- }
- /* Helper functions for the instruction macros that follow...
- (note that memory-to-register, m2r, instructions are nearly
- as efficient as register-to-register, r2r, instructions;
- however, memory-to-memory instructions are really simulated
- as a convenience, and are only 1/3 as efficient)
- */
- #ifdef MMX_TRACE
- /* Include the stuff for printing a trace to stderr...
- */
- #include <stdio.h>
- #define mmx_i2r(op, imm, reg)
- {
- mmx_t mmx_trace;
- mmx_trace = (imm);
- fprintf(stderr, #op "_i2r(" #imm "=0x%016llx, ", mmx_trace.q);
- __asm__ __volatile__ ("movq %%" #reg ", %0"
- : "=X" (mmx_trace)
- : /* nothing */ );
- fprintf(stderr, #reg "=0x%016llx) => ", mmx_trace.q);
- __asm__ __volatile__ (#op " %0, %%" #reg
- : /* nothing */
- : "X" (imm));
- __asm__ __volatile__ ("movq %%" #reg ", %0"
- : "=X" (mmx_trace)
- : /* nothing */ );
- fprintf(stderr, #reg "=0x%016llxn", mmx_trace.q);
- }
- #define mmx_m2r(op, mem, reg)
- {
- mmx_t mmx_trace;
- mmx_trace = (mem);
- fprintf(stderr, #op "_m2r(" #mem "=0x%016llx, ", mmx_trace.q);
- __asm__ __volatile__ ("movq %%" #reg ", %0"
- : "=X" (mmx_trace)
- : /* nothing */ );
- fprintf(stderr, #reg "=0x%016llx) => ", mmx_trace.q);
- __asm__ __volatile__ (#op " %0, %%" #reg
- : /* nothing */
- : "X" (mem));
- __asm__ __volatile__ ("movq %%" #reg ", %0"
- : "=X" (mmx_trace)
- : /* nothing */ );
- fprintf(stderr, #reg "=0x%016llxn", mmx_trace.q);
- }
- #define mmx_r2m(op, reg, mem)
- {
- mmx_t mmx_trace;
- __asm__ __volatile__ ("movq %%" #reg ", %0"
- : "=X" (mmx_trace)
- : /* nothing */ );
- fprintf(stderr, #op "_r2m(" #reg "=0x%016llx, ", mmx_trace.q);
- mmx_trace = (mem);
- fprintf(stderr, #mem "=0x%016llx) => ", mmx_trace.q);
- __asm__ __volatile__ (#op " %%" #reg ", %0"
- : "=X" (mem)
- : /* nothing */ );
- mmx_trace = (mem);
- fprintf(stderr, #mem "=0x%016llxn", mmx_trace.q);
- }
- #define mmx_r2r(op, regs, regd)
- {
- mmx_t mmx_trace;
- __asm__ __volatile__ ("movq %%" #regs ", %0"
- : "=X" (mmx_trace)
- : /* nothing */ );
- fprintf(stderr, #op "_r2r(" #regs "=0x%016llx, ", mmx_trace.q);
- __asm__ __volatile__ ("movq %%" #regd ", %0"
- : "=X" (mmx_trace)
- : /* nothing */ );
- fprintf(stderr, #regd "=0x%016llx) => ", mmx_trace.q);
- __asm__ __volatile__ (#op " %" #regs ", %" #regd);
- __asm__ __volatile__ ("movq %%" #regd ", %0"
- : "=X" (mmx_trace)
- : /* nothing */ );
- fprintf(stderr, #regd "=0x%016llxn", mmx_trace.q);
- }
- #define mmx_m2m(op, mems, memd)
- {
- mmx_t mmx_trace;
- mmx_trace = (mems);
- fprintf(stderr, #op "_m2m(" #mems "=0x%016llx, ", mmx_trace.q);
- mmx_trace = (memd);
- fprintf(stderr, #memd "=0x%016llx) => ", mmx_trace.q);
- __asm__ __volatile__ ("movq %0, %%mm0nt"
- #op " %1, %%mm0nt"
- "movq %%mm0, %0"
- : "=X" (memd)
- : "X" (mems));
- mmx_trace = (memd);
- fprintf(stderr, #memd "=0x%016llxn", mmx_trace.q);
- }
- #else
- /* These macros are a lot simpler without the tracing...
- */
- #define mmx_i2r(op, imm, reg)
- __asm__ __volatile__ (#op " $" #imm "0, %%" #reg
- : /* nothing */
- : /* nothing */
- #define mmx_m2r(op, mem, reg)
- __asm__ __volatile__ (#op " %0, %%" #reg
- : /* nothing */
- : "X" (mem))
- #define mmx_r2m(op, reg, mem)
- __asm__ __volatile__ (#op " %%" #reg ", %0"
- : "=X" (mem)
- : /* nothing */ )
- #define mmx_r2r(op, regs, regd)
- __asm__ __volatile__ (#op " %" #regs ", %" #regd)
- #define mmx_m2m(op, mems, memd)
- __asm__ __volatile__ ("movq %0, %%mm0nt"
- #op " %1, %%mm0nt"
- "movq %%mm0, %0"
- : "=X" (memd)
- : "X" (mems))
- #endif
- /* 1x64 MOVe Quadword
- (this is both a load and a store...
- in fact, it is the only way to store)
- */
- #define movq_m2r(var, reg) mmx_m2r(movq, var, reg)
- #define movq_r2m(reg, var) mmx_r2m(movq, reg, var)
- #define movq_r2r(regs, regd) mmx_r2r(movq, regs, regd)
- #define movq(vars, vard)
- __asm__ __volatile__ ("movq %1, %%mm0nt"
- "movq %%mm0, %0"
- : "=X" (vard)
- : "X" (vars))
- /* 1x32 MOVe Doubleword
- (like movq, this is both load and store...
- but is most useful for moving things between
- mmx registers and ordinary registers)
- */
- #define movd_m2r(var, reg) mmx_m2r(movd, var, reg)
- #define movd_r2m(reg, var) mmx_r2m(movd, reg, var)
- #define movd_r2r(regs, regd) mmx_r2r(movd, regs, regd)
- #define movd(vars, vard)
- __asm__ __volatile__ ("movd %1, %%mm0nt"
- "movd %%mm0, %0"
- : "=X" (vard)
- : "X" (vars))
- /* 2x32, 4x16, and 8x8 Parallel ADDs
- */
- #define paddd_m2r(var, reg) mmx_m2r(paddd, var, reg)
- #define paddd_r2r(regs, regd) mmx_r2r(paddd, regs, regd)
- #define paddd(vars, vard) mmx_m2m(paddd, vars, vard)
- #define paddw_m2r(var, reg) mmx_m2r(paddw, var, reg)
- #define paddw_r2r(regs, regd) mmx_r2r(paddw, regs, regd)
- #define paddw(vars, vard) mmx_m2m(paddw, vars, vard)
- #define paddb_m2r(var, reg) mmx_m2r(paddb, var, reg)
- #define paddb_r2r(regs, regd) mmx_r2r(paddb, regs, regd)
- #define paddb(vars, vard) mmx_m2m(paddb, vars, vard)
- /* 4x16 and 8x8 Parallel ADDs using Saturation arithmetic
- */
- #define paddsw_m2r(var, reg) mmx_m2r(paddsw, var, reg)
- #define paddsw_r2r(regs, regd) mmx_r2r(paddsw, regs, regd)
- #define paddsw(vars, vard) mmx_m2m(paddsw, vars, vard)
- #define paddsb_m2r(var, reg) mmx_m2r(paddsb, var, reg)
- #define paddsb_r2r(regs, regd) mmx_r2r(paddsb, regs, regd)
- #define paddsb(vars, vard) mmx_m2m(paddsb, vars, vard)
- /* 4x16 and 8x8 Parallel ADDs using Unsigned Saturation arithmetic
- */
- #define paddusw_m2r(var, reg) mmx_m2r(paddusw, var, reg)
- #define paddusw_r2r(regs, regd) mmx_r2r(paddusw, regs, regd)
- #define paddusw(vars, vard) mmx_m2m(paddusw, vars, vard)
- #define paddusb_m2r(var, reg) mmx_m2r(paddusb, var, reg)
- #define paddusb_r2r(regs, regd) mmx_r2r(paddusb, regs, regd)
- #define paddusb(vars, vard) mmx_m2m(paddusb, vars, vard)
- /* 2x32, 4x16, and 8x8 Parallel SUBs
- */
- #define psubd_m2r(var, reg) mmx_m2r(psubd, var, reg)
- #define psubd_r2r(regs, regd) mmx_r2r(psubd, regs, regd)
- #define psubd(vars, vard) mmx_m2m(psubd, vars, vard)
- #define psubw_m2r(var, reg) mmx_m2r(psubw, var, reg)
- #define psubw_r2r(regs, regd) mmx_r2r(psubw, regs, regd)
- #define psubw(vars, vard) mmx_m2m(psubw, vars, vard)
- #define psubb_m2r(var, reg) mmx_m2r(psubb, var, reg)
- #define psubb_r2r(regs, regd) mmx_r2r(psubb, regs, regd)
- #define psubb(vars, vard) mmx_m2m(psubb, vars, vard)
- /* 4x16 and 8x8 Parallel SUBs using Saturation arithmetic
- */
- #define psubsw_m2r(var, reg) mmx_m2r(psubsw, var, reg)
- #define psubsw_r2r(regs, regd) mmx_r2r(psubsw, regs, regd)
- #define psubsw(vars, vard) mmx_m2m(psubsw, vars, vard)
- #define psubsb_m2r(var, reg) mmx_m2r(psubsb, var, reg)
- #define psubsb_r2r(regs, regd) mmx_r2r(psubsb, regs, regd)
- #define psubsb(vars, vard) mmx_m2m(psubsb, vars, vard)
- /* 4x16 and 8x8 Parallel SUBs using Unsigned Saturation arithmetic
- */
- #define psubusw_m2r(var, reg) mmx_m2r(psubusw, var, reg)
- #define psubusw_r2r(regs, regd) mmx_r2r(psubusw, regs, regd)
- #define psubusw(vars, vard) mmx_m2m(psubusw, vars, vard)
- #define psubusb_m2r(var, reg) mmx_m2r(psubusb, var, reg)
- #define psubusb_r2r(regs, regd) mmx_r2r(psubusb, regs, regd)
- #define psubusb(vars, vard) mmx_m2m(psubusb, vars, vard)
- /* 4x16 Parallel MULs giving Low 4x16 portions of results
- */
- #define pmullw_m2r(var, reg) mmx_m2r(pmullw, var, reg)
- #define pmullw_r2r(regs, regd) mmx_r2r(pmullw, regs, regd)
- #define pmullw(vars, vard) mmx_m2m(pmullw, vars, vard)
- /* 4x16 Parallel MULs giving High 4x16 portions of results
- */
- #define pmulhw_m2r(var, reg) mmx_m2r(pmulhw, var, reg)
- #define pmulhw_r2r(regs, regd) mmx_r2r(pmulhw, regs, regd)
- #define pmulhw(vars, vard) mmx_m2m(pmulhw, vars, vard)
- /* 4x16->2x32 Parallel Mul-ADD
- (muls like pmullw, then adds adjacent 16-bit fields
- in the multiply result to make the final 2x32 result)
- */
- #define pmaddwd_m2r(var, reg) mmx_m2r(pmaddwd, var, reg)
- #define pmaddwd_r2r(regs, regd) mmx_r2r(pmaddwd, regs, regd)
- #define pmaddwd(vars, vard) mmx_m2m(pmaddwd, vars, vard)
- /* 1x64 bitwise AND
- */
- #ifdef BROKEN_PAND
- #define pand_m2r(var, reg)
- {
- mmx_m2r(pandn, (mmx_t) -1LL, reg);
- mmx_m2r(pandn, var, reg);
- }
- #define pand_r2r(regs, regd)
- {
- mmx_m2r(pandn, (mmx_t) -1LL, regd);
- mmx_r2r(pandn, regs, regd)
- }
- #define pand(vars, vard)
- {
- movq_m2r(vard, mm0);
- mmx_m2r(pandn, (mmx_t) -1LL, mm0);
- mmx_m2r(pandn, vars, mm0);
- movq_r2m(mm0, vard);
- }
- #else
- #define pand_m2r(var, reg) mmx_m2r(pand, var, reg)
- #define pand_r2r(regs, regd) mmx_r2r(pand, regs, regd)
- #define pand(vars, vard) mmx_m2m(pand, vars, vard)
- #endif
- /* 1x64 bitwise AND with Not the destination
- */
- #define pandn_m2r(var, reg) mmx_m2r(pandn, var, reg)
- #define pandn_r2r(regs, regd) mmx_r2r(pandn, regs, regd)
- #define pandn(vars, vard) mmx_m2m(pandn, vars, vard)
- /* 1x64 bitwise OR
- */
- #define por_m2r(var, reg) mmx_m2r(por, var, reg)
- #define por_r2r(regs, regd) mmx_r2r(por, regs, regd)
- #define por(vars, vard) mmx_m2m(por, vars, vard)
- /* 1x64 bitwise eXclusive OR
- */
- #define pxor_m2r(var, reg) mmx_m2r(pxor, var, reg)
- #define pxor_r2r(regs, regd) mmx_r2r(pxor, regs, regd)
- #define pxor(vars, vard) mmx_m2m(pxor, vars, vard)
- /* 2x32, 4x16, and 8x8 Parallel CoMPare for EQuality
- (resulting fields are either 0 or -1)
- */
- #define pcmpeqd_m2r(var, reg) mmx_m2r(pcmpeqd, var, reg)
- #define pcmpeqd_r2r(regs, regd) mmx_r2r(pcmpeqd, regs, regd)
- #define pcmpeqd(vars, vard) mmx_m2m(pcmpeqd, vars, vard)
- #define pcmpeqw_m2r(var, reg) mmx_m2r(pcmpeqw, var, reg)
- #define pcmpeqw_r2r(regs, regd) mmx_r2r(pcmpeqw, regs, regd)
- #define pcmpeqw(vars, vard) mmx_m2m(pcmpeqw, vars, vard)
- #define pcmpeqb_m2r(var, reg) mmx_m2r(pcmpeqb, var, reg)
- #define pcmpeqb_r2r(regs, regd) mmx_r2r(pcmpeqb, regs, regd)
- #define pcmpeqb(vars, vard) mmx_m2m(pcmpeqb, vars, vard)
- /* 2x32, 4x16, and 8x8 Parallel CoMPare for Greater Than
- (resulting fields are either 0 or -1)
- */
- #define pcmpgtd_m2r(var, reg) mmx_m2r(pcmpgtd, var, reg)
- #define pcmpgtd_r2r(regs, regd) mmx_r2r(pcmpgtd, regs, regd)
- #define pcmpgtd(vars, vard) mmx_m2m(pcmpgtd, vars, vard)
- #define pcmpgtw_m2r(var, reg) mmx_m2r(pcmpgtw, var, reg)
- #define pcmpgtw_r2r(regs, regd) mmx_r2r(pcmpgtw, regs, regd)
- #define pcmpgtw(vars, vard) mmx_m2m(pcmpgtw, vars, vard)
- #define pcmpgtb_m2r(var, reg) mmx_m2r(pcmpgtb, var, reg)
- #define pcmpgtb_r2r(regs, regd) mmx_r2r(pcmpgtb, regs, regd)
- #define pcmpgtb(vars, vard) mmx_m2m(pcmpgtb, vars, vard)
- /* 1x64, 2x32, and 4x16 Parallel Shift Left Logical
- */
- #define psllq_i2r(imm, reg) mmx_m2r(psllq, imm, reg)
- #define psllq_m2r(var, reg) mmx_m2r(psllq, var, reg)
- #define psllq_r2r(regs, regd) mmx_r2r(psllq, regs, regd)
- #define psllq(vars, vard) mmx_m2m(psllq, vars, vard)
- #define pslld_i2r(imm, reg) mmx_m2r(pslld, imm, reg)
- #define pslld_m2r(var, reg) mmx_m2r(pslld, var, reg)
- #define pslld_r2r(regs, regd) mmx_r2r(pslld, regs, regd)
- #define pslld(vars, vard) mmx_m2m(pslld, vars, vard)
- #define psllw_i2r(imm, reg) mmx_m2r(psllw, imm, reg)
- #define psllw_m2r(var, reg) mmx_m2r(psllw, var, reg)
- #define psllw_r2r(regs, regd) mmx_r2r(psllw, regs, regd)
- #define psllw(vars, vard) mmx_m2m(psllw, vars, vard)
- /* 1x64, 2x32, and 4x16 Parallel Shift Right Logical
- */
- #define psrlq_i2r(imm, reg) mmx_m2r(psrlq, imm, reg)
- #define psrlq_m2r(var, reg) mmx_m2r(psrlq, var, reg)
- #define psrlq_r2r(regs, regd) mmx_r2r(psrlq, regs, regd)
- #define psrlq(vars, vard) mmx_m2m(psrlq, vars, vard)
- #define psrld_i2r(imm, reg) mmx_m2r(psrld, imm, reg)
- #define psrld_m2r(var, reg) mmx_m2r(psrld, var, reg)
- #define psrld_r2r(regs, regd) mmx_r2r(psrld, regs, regd)
- #define psrld(vars, vard) mmx_m2m(psrld, vars, vard)
- #define psrlw_i2r(imm, reg) mmx_m2r(psrlw, imm, reg)
- #define psrlw_m2r(var, reg) mmx_m2r(psrlw, var, reg)
- #define psrlw_r2r(regs, regd) mmx_r2r(psrlw, regs, regd)
- #define psrlw(vars, vard) mmx_m2m(psrlw, vars, vard)
- /* 2x32 and 4x16 Parallel Shift Right Arithmetic
- */
- #define psrad_i2r(imm, reg) mmx_m2r(psrad, imm, reg)
- #define psrad_m2r(var, reg) mmx_m2r(psrad, var, reg)
- #define psrad_r2r(regs, regd) mmx_r2r(psrad, regs, regd)
- #define psrad(vars, vard) mmx_m2m(psrad, vars, vard)
- #define psraw_i2r(imm, reg) mmx_m2r(psraw, imm, reg)
- #define psraw_m2r(var, reg) mmx_m2r(psraw, var, reg)
- #define psraw_r2r(regs, regd) mmx_r2r(psraw, regs, regd)
- #define psraw(vars, vard) mmx_m2m(psraw, vars, vard)
- /* 2x32->4x16 and 4x16->8x8 PACK and Signed Saturate
- (packs source and dest fields into dest in that order)
- */
- #define packssdw_m2r(var, reg) mmx_m2r(packssdw, var, reg)
- #define packssdw_r2r(regs, regd) mmx_r2r(packssdw, regs, regd)
- #define packssdw(vars, vard) mmx_m2m(packssdw, vars, vard)
- #define packsswb_m2r(var, reg) mmx_m2r(packsswb, var, reg)
- #define packsswb_r2r(regs, regd) mmx_r2r(packsswb, regs, regd)
- #define packsswb(vars, vard) mmx_m2m(packsswb, vars, vard)
- /* 4x16->8x8 PACK and Unsigned Saturate
- (packs source and dest fields into dest in that order)
- */
- #define packuswb_m2r(var, reg) mmx_m2r(packuswb, var, reg)
- #define packuswb_r2r(regs, regd) mmx_r2r(packuswb, regs, regd)
- #define packuswb(vars, vard) mmx_m2m(packuswb, vars, vard)
- /* 2x32->1x64, 4x16->2x32, and 8x8->4x16 UNPaCK Low
- (interleaves low half of dest with low half of source
- as padding in each result field)
- */
- #define punpckldq_m2r(var, reg) mmx_m2r(punpckldq, var, reg)
- #define punpckldq_r2r(regs, regd) mmx_r2r(punpckldq, regs, regd)
- #define punpckldq(vars, vard) mmx_m2m(punpckldq, vars, vard)
- #define punpcklwd_m2r(var, reg) mmx_m2r(punpcklwd, var, reg)
- #define punpcklwd_r2r(regs, regd) mmx_r2r(punpcklwd, regs, regd)
- #define punpcklwd(vars, vard) mmx_m2m(punpcklwd, vars, vard)
- #define punpcklbw_m2r(var, reg) mmx_m2r(punpcklbw, var, reg)
- #define punpcklbw_r2r(regs, regd) mmx_r2r(punpcklbw, regs, regd)
- #define punpcklbw(vars, vard) mmx_m2m(punpcklbw, vars, vard)
- /* 2x32->1x64, 4x16->2x32, and 8x8->4x16 UNPaCK High
- (interleaves high half of dest with high half of source
- as padding in each result field)
- */
- #define punpckhdq_m2r(var, reg) mmx_m2r(punpckhdq, var, reg)
- #define punpckhdq_r2r(regs, regd) mmx_r2r(punpckhdq, regs, regd)
- #define punpckhdq(vars, vard) mmx_m2m(punpckhdq, vars, vard)
- #define punpckhwd_m2r(var, reg) mmx_m2r(punpckhwd, var, reg)
- #define punpckhwd_r2r(regs, regd) mmx_r2r(punpckhwd, regs, regd)
- #define punpckhwd(vars, vard) mmx_m2m(punpckhwd, vars, vard)
- #define punpckhbw_m2r(var, reg) mmx_m2r(punpckhbw, var, reg)
- #define punpckhbw_r2r(regs, regd) mmx_r2r(punpckhbw, regs, regd)
- #define punpckhbw(vars, vard) mmx_m2m(punpckhbw, vars, vard)
- /* Empty MMx State
- (used to clean-up when going from mmx to float use
- of the registers that are shared by both; note that
- there is no float-to-mmx operation needed, because
- only the float tag word info is corruptible)
- */
- #ifdef MMX_TRACE
- #define emms()
- {
- fprintf(stderr, "emms()n");
- __asm__ __volatile__ ("emms");
- }
- #else
- #define emms() __asm__ __volatile__ ("emms")
- #endif
- #endif