diff options
author | marha <marha@users.sourceforge.net> | 2012-06-08 09:33:13 +0200 |
---|---|---|
committer | marha <marha@users.sourceforge.net> | 2012-06-08 09:33:13 +0200 |
commit | 990bc3f015a4f8fce2eb918375defcd44980a845 (patch) | |
tree | 8e8301f19482b52cc00bd95b4593522cc93267af /mesalib/src/mesa/x86/rtasm/x86sse.c | |
parent | 1af6fc1b5d93e54d6674de8b5870448b29f139a7 (diff) | |
download | vcxsrv-990bc3f015a4f8fce2eb918375defcd44980a845.tar.gz vcxsrv-990bc3f015a4f8fce2eb918375defcd44980a845.tar.bz2 vcxsrv-990bc3f015a4f8fce2eb918375defcd44980a845.zip |
Used synchronise script to update files
Diffstat (limited to 'mesalib/src/mesa/x86/rtasm/x86sse.c')
-rw-r--r-- | mesalib/src/mesa/x86/rtasm/x86sse.c | 2406 |
1 files changed, 1203 insertions, 1203 deletions
diff --git a/mesalib/src/mesa/x86/rtasm/x86sse.c b/mesalib/src/mesa/x86/rtasm/x86sse.c index 08e3969b2..c93faba79 100644 --- a/mesalib/src/mesa/x86/rtasm/x86sse.c +++ b/mesalib/src/mesa/x86/rtasm/x86sse.c @@ -1,1203 +1,1203 @@ -#ifdef USE_X86_ASM
-#if defined(__i386__) || defined(__386__)
-
-#include "main/imports.h"
-#include "x86sse.h"
-
-#define DISASSEM 0
-#define X86_TWOB 0x0f
-
-#if 0
-static unsigned char *cptr( void (*label)() )
-{
- return (unsigned char *)(unsigned long)label;
-}
-#endif
-
-
-static void do_realloc( struct x86_function *p )
-{
- if (p->size == 0) {
- p->size = 1024;
- p->store = _mesa_exec_malloc(p->size);
- p->csr = p->store;
- }
- else {
- unsigned used = p->csr - p->store;
- unsigned char *tmp = p->store;
- p->size *= 2;
- p->store = _mesa_exec_malloc(p->size);
- memcpy(p->store, tmp, used);
- p->csr = p->store + used;
- _mesa_exec_free(tmp);
- }
-}
-
-/* Emit bytes to the instruction stream:
- */
-static unsigned char *reserve( struct x86_function *p, int bytes )
-{
- if (p->csr + bytes - p->store > p->size)
- do_realloc(p);
-
- {
- unsigned char *csr = p->csr;
- p->csr += bytes;
- return csr;
- }
-}
-
-
-
-static void emit_1b( struct x86_function *p, char b0 )
-{
- char *csr = (char *)reserve(p, 1);
- *csr = b0;
-}
-
-static void emit_1i( struct x86_function *p, int i0 )
-{
- int *icsr = (int *)reserve(p, sizeof(i0));
- *icsr = i0;
-}
-
-static void emit_1ub( struct x86_function *p, unsigned char b0 )
-{
- unsigned char *csr = reserve(p, 1);
- *csr++ = b0;
-}
-
-static void emit_2ub( struct x86_function *p, unsigned char b0, unsigned char b1 )
-{
- unsigned char *csr = reserve(p, 2);
- *csr++ = b0;
- *csr++ = b1;
-}
-
-static void emit_3ub( struct x86_function *p, unsigned char b0, unsigned char b1, unsigned char b2 )
-{
- unsigned char *csr = reserve(p, 3);
- *csr++ = b0;
- *csr++ = b1;
- *csr++ = b2;
-}
-
-
-/* Build a modRM byte + possible displacement. No treatment of SIB
- * indexing. BZZT - no way to encode an absolute address.
- */
-static void emit_modrm( struct x86_function *p,
- struct x86_reg reg,
- struct x86_reg regmem )
-{
- unsigned char val = 0;
-
- assert(reg.mod == mod_REG);
-
- val |= regmem.mod << 6; /* mod field */
- val |= reg.idx << 3; /* reg field */
- val |= regmem.idx; /* r/m field */
-
- emit_1ub(p, val);
-
- /* Oh-oh we've stumbled into the SIB thing.
- */
- if (regmem.file == file_REG32 &&
- regmem.idx == reg_SP) {
- emit_1ub(p, 0x24); /* simplistic! */
- }
-
- switch (regmem.mod) {
- case mod_REG:
- case mod_INDIRECT:
- break;
- case mod_DISP8:
- emit_1b(p, regmem.disp);
- break;
- case mod_DISP32:
- emit_1i(p, regmem.disp);
- break;
- default:
- assert(0);
- break;
- }
-}
-
-
-static void emit_modrm_noreg( struct x86_function *p,
- unsigned op,
- struct x86_reg regmem )
-{
- struct x86_reg dummy = x86_make_reg(file_REG32, op);
- emit_modrm(p, dummy, regmem);
-}
-
-/* Many x86 instructions have two opcodes to cope with the situations
- * where the destination is a register or memory reference
- * respectively. This function selects the correct opcode based on
- * the arguments presented.
- */
-static void emit_op_modrm( struct x86_function *p,
- unsigned char op_dst_is_reg,
- unsigned char op_dst_is_mem,
- struct x86_reg dst,
- struct x86_reg src )
-{
- switch (dst.mod) {
- case mod_REG:
- emit_1ub(p, op_dst_is_reg);
- emit_modrm(p, dst, src);
- break;
- case mod_INDIRECT:
- case mod_DISP32:
- case mod_DISP8:
- assert(src.mod == mod_REG);
- emit_1ub(p, op_dst_is_mem);
- emit_modrm(p, src, dst);
- break;
- default:
- assert(0);
- break;
- }
-}
-
-
-
-
-
-
-
-/* Create and manipulate registers and regmem values:
- */
-struct x86_reg x86_make_reg( enum x86_reg_file file,
- enum x86_reg_name idx )
-{
- struct x86_reg reg;
-
- reg.file = file;
- reg.idx = idx;
- reg.mod = mod_REG;
- reg.disp = 0;
-
- return reg;
-}
-
-struct x86_reg x86_make_disp( struct x86_reg reg,
- int disp )
-{
- assert(reg.file == file_REG32);
-
- if (reg.mod == mod_REG)
- reg.disp = disp;
- else
- reg.disp += disp;
-
- if (reg.disp == 0)
- reg.mod = mod_INDIRECT;
- else if (reg.disp <= 127 && reg.disp >= -128)
- reg.mod = mod_DISP8;
- else
- reg.mod = mod_DISP32;
-
- return reg;
-}
-
-struct x86_reg x86_deref( struct x86_reg reg )
-{
- return x86_make_disp(reg, 0);
-}
-
-struct x86_reg x86_get_base_reg( struct x86_reg reg )
-{
- return x86_make_reg( reg.file, reg.idx );
-}
-
-unsigned char *x86_get_label( struct x86_function *p )
-{
- return p->csr;
-}
-
-
-
-/***********************************************************************
- * x86 instructions
- */
-
-
-void x86_jcc( struct x86_function *p,
- enum x86_cc cc,
- unsigned char *label )
-{
- int offset = label - (x86_get_label(p) + 2);
-
- if (offset <= 127 && offset >= -128) {
- emit_1ub(p, 0x70 + cc);
- emit_1b(p, (char) offset);
- }
- else {
- offset = label - (x86_get_label(p) + 6);
- emit_2ub(p, 0x0f, 0x80 + cc);
- emit_1i(p, offset);
- }
-}
-
-/* Always use a 32bit offset for forward jumps:
- */
-unsigned char *x86_jcc_forward( struct x86_function *p,
- enum x86_cc cc )
-{
- emit_2ub(p, 0x0f, 0x80 + cc);
- emit_1i(p, 0);
- return x86_get_label(p);
-}
-
-unsigned char *x86_jmp_forward( struct x86_function *p)
-{
- emit_1ub(p, 0xe9);
- emit_1i(p, 0);
- return x86_get_label(p);
-}
-
-unsigned char *x86_call_forward( struct x86_function *p)
-{
- emit_1ub(p, 0xe8);
- emit_1i(p, 0);
- return x86_get_label(p);
-}
-
-/* Fixup offset from forward jump:
- */
-void x86_fixup_fwd_jump( struct x86_function *p,
- unsigned char *fixup )
-{
- *(int *)(fixup - 4) = x86_get_label(p) - fixup;
-}
-
-void x86_jmp( struct x86_function *p, unsigned char *label)
-{
- emit_1ub(p, 0xe9);
- emit_1i(p, label - x86_get_label(p) - 4);
-}
-
-#if 0
-/* This doesn't work once we start reallocating & copying the
- * generated code on buffer fills, because the call is relative to the
- * current pc.
- */
-void x86_call( struct x86_function *p, void (*label)())
-{
- emit_1ub(p, 0xe8);
- emit_1i(p, cptr(label) - x86_get_label(p) - 4);
-}
-#else
-void x86_call( struct x86_function *p, struct x86_reg reg)
-{
- emit_1ub(p, 0xff);
- emit_modrm_noreg(p, 2, reg);
-}
-#endif
-
-
-/* michal:
- * Temporary. As I need immediate operands, and dont want to mess with the codegen,
- * I load the immediate into general purpose register and use it.
- */
-void x86_mov_reg_imm( struct x86_function *p, struct x86_reg dst, int imm )
-{
- assert(dst.mod == mod_REG);
- emit_1ub(p, 0xb8 + dst.idx);
- emit_1i(p, imm);
-}
-
-void x86_push( struct x86_function *p,
- struct x86_reg reg )
-{
- assert(reg.mod == mod_REG);
- emit_1ub(p, 0x50 + reg.idx);
- p->stack_offset += 4;
-}
-
-void x86_pop( struct x86_function *p,
- struct x86_reg reg )
-{
- assert(reg.mod == mod_REG);
- emit_1ub(p, 0x58 + reg.idx);
- p->stack_offset -= 4;
-}
-
-void x86_inc( struct x86_function *p,
- struct x86_reg reg )
-{
- assert(reg.mod == mod_REG);
- emit_1ub(p, 0x40 + reg.idx);
-}
-
-void x86_dec( struct x86_function *p,
- struct x86_reg reg )
-{
- assert(reg.mod == mod_REG);
- emit_1ub(p, 0x48 + reg.idx);
-}
-
-void x86_ret( struct x86_function *p )
-{
- emit_1ub(p, 0xc3);
-}
-
-void x86_sahf( struct x86_function *p )
-{
- emit_1ub(p, 0x9e);
-}
-
-void x86_mov( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_op_modrm( p, 0x8b, 0x89, dst, src );
-}
-
-void x86_xor( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_op_modrm( p, 0x33, 0x31, dst, src );
-}
-
-void x86_cmp( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_op_modrm( p, 0x3b, 0x39, dst, src );
-}
-
-void x86_lea( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_1ub(p, 0x8d);
- emit_modrm( p, dst, src );
-}
-
-void x86_test( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_1ub(p, 0x85);
- emit_modrm( p, dst, src );
-}
-
-void x86_add( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_op_modrm(p, 0x03, 0x01, dst, src );
-}
-
-void x86_mul( struct x86_function *p,
- struct x86_reg src )
-{
- assert (src.file == file_REG32 && src.mod == mod_REG);
- emit_op_modrm(p, 0xf7, 0, x86_make_reg (file_REG32, reg_SP), src );
-}
-
-void x86_sub( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_op_modrm(p, 0x2b, 0x29, dst, src );
-}
-
-void x86_or( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_op_modrm( p, 0x0b, 0x09, dst, src );
-}
-
-void x86_and( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_op_modrm( p, 0x23, 0x21, dst, src );
-}
-
-
-
-/***********************************************************************
- * SSE instructions
- */
-
-
-void sse_movss( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_2ub(p, 0xF3, X86_TWOB);
- emit_op_modrm( p, 0x10, 0x11, dst, src );
-}
-
-void sse_movaps( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_1ub(p, X86_TWOB);
- emit_op_modrm( p, 0x28, 0x29, dst, src );
-}
-
-void sse_movups( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_1ub(p, X86_TWOB);
- emit_op_modrm( p, 0x10, 0x11, dst, src );
-}
-
-void sse_movhps( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- assert(dst.mod != mod_REG || src.mod != mod_REG);
- emit_1ub(p, X86_TWOB);
- emit_op_modrm( p, 0x16, 0x17, dst, src ); /* cf movlhps */
-}
-
-void sse_movlps( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- assert(dst.mod != mod_REG || src.mod != mod_REG);
- emit_1ub(p, X86_TWOB);
- emit_op_modrm( p, 0x12, 0x13, dst, src ); /* cf movhlps */
-}
-
-void sse_maxps( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_2ub(p, X86_TWOB, 0x5F);
- emit_modrm( p, dst, src );
-}
-
-void sse_maxss( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_3ub(p, 0xF3, X86_TWOB, 0x5F);
- emit_modrm( p, dst, src );
-}
-
-void sse_divss( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_3ub(p, 0xF3, X86_TWOB, 0x5E);
- emit_modrm( p, dst, src );
-}
-
-void sse_minps( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_2ub(p, X86_TWOB, 0x5D);
- emit_modrm( p, dst, src );
-}
-
-void sse_subps( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_2ub(p, X86_TWOB, 0x5C);
- emit_modrm( p, dst, src );
-}
-
-void sse_mulps( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_2ub(p, X86_TWOB, 0x59);
- emit_modrm( p, dst, src );
-}
-
-void sse_mulss( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_3ub(p, 0xF3, X86_TWOB, 0x59);
- emit_modrm( p, dst, src );
-}
-
-void sse_addps( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_2ub(p, X86_TWOB, 0x58);
- emit_modrm( p, dst, src );
-}
-
-void sse_addss( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_3ub(p, 0xF3, X86_TWOB, 0x58);
- emit_modrm( p, dst, src );
-}
-
-void sse_andnps( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_2ub(p, X86_TWOB, 0x55);
- emit_modrm( p, dst, src );
-}
-
-void sse_andps( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_2ub(p, X86_TWOB, 0x54);
- emit_modrm( p, dst, src );
-}
-
-void sse_rsqrtps( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_2ub(p, X86_TWOB, 0x52);
- emit_modrm( p, dst, src );
-}
-
-void sse_rsqrtss( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_3ub(p, 0xF3, X86_TWOB, 0x52);
- emit_modrm( p, dst, src );
-
-}
-
-void sse_movhlps( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- assert(dst.mod == mod_REG && src.mod == mod_REG);
- emit_2ub(p, X86_TWOB, 0x12);
- emit_modrm( p, dst, src );
-}
-
-void sse_movlhps( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- assert(dst.mod == mod_REG && src.mod == mod_REG);
- emit_2ub(p, X86_TWOB, 0x16);
- emit_modrm( p, dst, src );
-}
-
-void sse_orps( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_2ub(p, X86_TWOB, 0x56);
- emit_modrm( p, dst, src );
-}
-
-void sse_xorps( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_2ub(p, X86_TWOB, 0x57);
- emit_modrm( p, dst, src );
-}
-
-void sse_cvtps2pi( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- assert(dst.file == file_MMX &&
- (src.file == file_XMM || src.mod != mod_REG));
-
- p->need_emms = 1;
-
- emit_2ub(p, X86_TWOB, 0x2d);
- emit_modrm( p, dst, src );
-}
-
-
-/* Shufps can also be used to implement a reduced swizzle when dest ==
- * arg0.
- */
-void sse_shufps( struct x86_function *p,
- struct x86_reg dest,
- struct x86_reg arg0,
- unsigned char shuf)
-{
- emit_2ub(p, X86_TWOB, 0xC6);
- emit_modrm(p, dest, arg0);
- emit_1ub(p, shuf);
-}
-
-void sse_cmpps( struct x86_function *p,
- struct x86_reg dest,
- struct x86_reg arg0,
- unsigned char cc)
-{
- emit_2ub(p, X86_TWOB, 0xC2);
- emit_modrm(p, dest, arg0);
- emit_1ub(p, cc);
-}
-
-void sse_pmovmskb( struct x86_function *p,
- struct x86_reg dest,
- struct x86_reg src)
-{
- emit_3ub(p, 0x66, X86_TWOB, 0xD7);
- emit_modrm(p, dest, src);
-}
-
-/***********************************************************************
- * SSE2 instructions
- */
-
-/**
- * Perform a reduced swizzle:
- */
-void sse2_pshufd( struct x86_function *p,
- struct x86_reg dest,
- struct x86_reg arg0,
- unsigned char shuf)
-{
- emit_3ub(p, 0x66, X86_TWOB, 0x70);
- emit_modrm(p, dest, arg0);
- emit_1ub(p, shuf);
-}
-
-void sse2_cvttps2dq( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_3ub( p, 0xF3, X86_TWOB, 0x5B );
- emit_modrm( p, dst, src );
-}
-
-void sse2_cvtps2dq( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_3ub(p, 0x66, X86_TWOB, 0x5B);
- emit_modrm( p, dst, src );
-}
-
-void sse2_packssdw( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_3ub(p, 0x66, X86_TWOB, 0x6B);
- emit_modrm( p, dst, src );
-}
-
-void sse2_packsswb( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_3ub(p, 0x66, X86_TWOB, 0x63);
- emit_modrm( p, dst, src );
-}
-
-void sse2_packuswb( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_3ub(p, 0x66, X86_TWOB, 0x67);
- emit_modrm( p, dst, src );
-}
-
-void sse2_rcpps( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_2ub(p, X86_TWOB, 0x53);
- emit_modrm( p, dst, src );
-}
-
-void sse2_rcpss( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_3ub(p, 0xF3, X86_TWOB, 0x53);
- emit_modrm( p, dst, src );
-}
-
-void sse2_movd( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- emit_2ub(p, 0x66, X86_TWOB);
- emit_op_modrm( p, 0x6e, 0x7e, dst, src );
-}
-
-
-
-
-/***********************************************************************
- * x87 instructions
- */
-void x87_fist( struct x86_function *p, struct x86_reg dst )
-{
- emit_1ub(p, 0xdb);
- emit_modrm_noreg(p, 2, dst);
-}
-
-void x87_fistp( struct x86_function *p, struct x86_reg dst )
-{
- emit_1ub(p, 0xdb);
- emit_modrm_noreg(p, 3, dst);
-}
-
-void x87_fild( struct x86_function *p, struct x86_reg arg )
-{
- emit_1ub(p, 0xdf);
- emit_modrm_noreg(p, 0, arg);
-}
-
-void x87_fldz( struct x86_function *p )
-{
- emit_2ub(p, 0xd9, 0xee);
-}
-
-
-void x87_fldcw( struct x86_function *p, struct x86_reg arg )
-{
- assert(arg.file == file_REG32);
- assert(arg.mod != mod_REG);
- emit_1ub(p, 0xd9);
- emit_modrm_noreg(p, 5, arg);
-}
-
-void x87_fld1( struct x86_function *p )
-{
- emit_2ub(p, 0xd9, 0xe8);
-}
-
-void x87_fldl2e( struct x86_function *p )
-{
- emit_2ub(p, 0xd9, 0xea);
-}
-
-void x87_fldln2( struct x86_function *p )
-{
- emit_2ub(p, 0xd9, 0xed);
-}
-
-void x87_fwait( struct x86_function *p )
-{
- emit_1ub(p, 0x9b);
-}
-
-void x87_fnclex( struct x86_function *p )
-{
- emit_2ub(p, 0xdb, 0xe2);
-}
-
-void x87_fclex( struct x86_function *p )
-{
- x87_fwait(p);
- x87_fnclex(p);
-}
-
-
-static void x87_arith_op( struct x86_function *p, struct x86_reg dst, struct x86_reg arg,
- unsigned char dst0ub0,
- unsigned char dst0ub1,
- unsigned char arg0ub0,
- unsigned char arg0ub1,
- unsigned char argmem_noreg)
-{
- assert(dst.file == file_x87);
-
- if (arg.file == file_x87) {
- if (dst.idx == 0)
- emit_2ub(p, dst0ub0, dst0ub1+arg.idx);
- else if (arg.idx == 0)
- emit_2ub(p, arg0ub0, arg0ub1+arg.idx);
- else
- assert(0);
- }
- else if (dst.idx == 0) {
- assert(arg.file == file_REG32);
- emit_1ub(p, 0xd8);
- emit_modrm_noreg(p, argmem_noreg, arg);
- }
- else
- assert(0);
-}
-
-void x87_fmul( struct x86_function *p, struct x86_reg dst, struct x86_reg arg )
-{
- x87_arith_op(p, dst, arg,
- 0xd8, 0xc8,
- 0xdc, 0xc8,
- 4);
-}
-
-void x87_fsub( struct x86_function *p, struct x86_reg dst, struct x86_reg arg )
-{
- x87_arith_op(p, dst, arg,
- 0xd8, 0xe0,
- 0xdc, 0xe8,
- 4);
-}
-
-void x87_fsubr( struct x86_function *p, struct x86_reg dst, struct x86_reg arg )
-{
- x87_arith_op(p, dst, arg,
- 0xd8, 0xe8,
- 0xdc, 0xe0,
- 5);
-}
-
-void x87_fadd( struct x86_function *p, struct x86_reg dst, struct x86_reg arg )
-{
- x87_arith_op(p, dst, arg,
- 0xd8, 0xc0,
- 0xdc, 0xc0,
- 0);
-}
-
-void x87_fdiv( struct x86_function *p, struct x86_reg dst, struct x86_reg arg )
-{
- x87_arith_op(p, dst, arg,
- 0xd8, 0xf0,
- 0xdc, 0xf8,
- 6);
-}
-
-void x87_fdivr( struct x86_function *p, struct x86_reg dst, struct x86_reg arg )
-{
- x87_arith_op(p, dst, arg,
- 0xd8, 0xf8,
- 0xdc, 0xf0,
- 7);
-}
-
-void x87_fmulp( struct x86_function *p, struct x86_reg dst )
-{
- assert(dst.file == file_x87);
- assert(dst.idx >= 1);
- emit_2ub(p, 0xde, 0xc8+dst.idx);
-}
-
-void x87_fsubp( struct x86_function *p, struct x86_reg dst )
-{
- assert(dst.file == file_x87);
- assert(dst.idx >= 1);
- emit_2ub(p, 0xde, 0xe8+dst.idx);
-}
-
-void x87_fsubrp( struct x86_function *p, struct x86_reg dst )
-{
- assert(dst.file == file_x87);
- assert(dst.idx >= 1);
- emit_2ub(p, 0xde, 0xe0+dst.idx);
-}
-
-void x87_faddp( struct x86_function *p, struct x86_reg dst )
-{
- assert(dst.file == file_x87);
- assert(dst.idx >= 1);
- emit_2ub(p, 0xde, 0xc0+dst.idx);
-}
-
-void x87_fdivp( struct x86_function *p, struct x86_reg dst )
-{
- assert(dst.file == file_x87);
- assert(dst.idx >= 1);
- emit_2ub(p, 0xde, 0xf8+dst.idx);
-}
-
-void x87_fdivrp( struct x86_function *p, struct x86_reg dst )
-{
- assert(dst.file == file_x87);
- assert(dst.idx >= 1);
- emit_2ub(p, 0xde, 0xf0+dst.idx);
-}
-
-void x87_fucom( struct x86_function *p, struct x86_reg arg )
-{
- assert(arg.file == file_x87);
- emit_2ub(p, 0xdd, 0xe0+arg.idx);
-}
-
-void x87_fucomp( struct x86_function *p, struct x86_reg arg )
-{
- assert(arg.file == file_x87);
- emit_2ub(p, 0xdd, 0xe8+arg.idx);
-}
-
-void x87_fucompp( struct x86_function *p )
-{
- emit_2ub(p, 0xda, 0xe9);
-}
-
-void x87_fxch( struct x86_function *p, struct x86_reg arg )
-{
- assert(arg.file == file_x87);
- emit_2ub(p, 0xd9, 0xc8+arg.idx);
-}
-
-void x87_fabs( struct x86_function *p )
-{
- emit_2ub(p, 0xd9, 0xe1);
-}
-
-void x87_fchs( struct x86_function *p )
-{
- emit_2ub(p, 0xd9, 0xe0);
-}
-
-void x87_fcos( struct x86_function *p )
-{
- emit_2ub(p, 0xd9, 0xff);
-}
-
-
-void x87_fprndint( struct x86_function *p )
-{
- emit_2ub(p, 0xd9, 0xfc);
-}
-
-void x87_fscale( struct x86_function *p )
-{
- emit_2ub(p, 0xd9, 0xfd);
-}
-
-void x87_fsin( struct x86_function *p )
-{
- emit_2ub(p, 0xd9, 0xfe);
-}
-
-void x87_fsincos( struct x86_function *p )
-{
- emit_2ub(p, 0xd9, 0xfb);
-}
-
-void x87_fsqrt( struct x86_function *p )
-{
- emit_2ub(p, 0xd9, 0xfa);
-}
-
-void x87_fxtract( struct x86_function *p )
-{
- emit_2ub(p, 0xd9, 0xf4);
-}
-
-/* st0 = (2^st0)-1
- *
- * Restrictions: -1.0 <= st0 <= 1.0
- */
-void x87_f2xm1( struct x86_function *p )
-{
- emit_2ub(p, 0xd9, 0xf0);
-}
-
-/* st1 = st1 * log2(st0);
- * pop_stack;
- */
-void x87_fyl2x( struct x86_function *p )
-{
- emit_2ub(p, 0xd9, 0xf1);
-}
-
-/* st1 = st1 * log2(st0 + 1.0);
- * pop_stack;
- *
- * A fast operation, with restrictions: -.29 < st0 < .29
- */
-void x87_fyl2xp1( struct x86_function *p )
-{
- emit_2ub(p, 0xd9, 0xf9);
-}
-
-
-void x87_fld( struct x86_function *p, struct x86_reg arg )
-{
- if (arg.file == file_x87)
- emit_2ub(p, 0xd9, 0xc0 + arg.idx);
- else {
- emit_1ub(p, 0xd9);
- emit_modrm_noreg(p, 0, arg);
- }
-}
-
-void x87_fst( struct x86_function *p, struct x86_reg dst )
-{
- if (dst.file == file_x87)
- emit_2ub(p, 0xdd, 0xd0 + dst.idx);
- else {
- emit_1ub(p, 0xd9);
- emit_modrm_noreg(p, 2, dst);
- }
-}
-
-void x87_fstp( struct x86_function *p, struct x86_reg dst )
-{
- if (dst.file == file_x87)
- emit_2ub(p, 0xdd, 0xd8 + dst.idx);
- else {
- emit_1ub(p, 0xd9);
- emit_modrm_noreg(p, 3, dst);
- }
-}
-
-void x87_fcom( struct x86_function *p, struct x86_reg dst )
-{
- if (dst.file == file_x87)
- emit_2ub(p, 0xd8, 0xd0 + dst.idx);
- else {
- emit_1ub(p, 0xd8);
- emit_modrm_noreg(p, 2, dst);
- }
-}
-
-void x87_fcomp( struct x86_function *p, struct x86_reg dst )
-{
- if (dst.file == file_x87)
- emit_2ub(p, 0xd8, 0xd8 + dst.idx);
- else {
- emit_1ub(p, 0xd8);
- emit_modrm_noreg(p, 3, dst);
- }
-}
-
-
-void x87_fnstsw( struct x86_function *p, struct x86_reg dst )
-{
- assert(dst.file == file_REG32);
-
- if (dst.idx == reg_AX &&
- dst.mod == mod_REG)
- emit_2ub(p, 0xdf, 0xe0);
- else {
- emit_1ub(p, 0xdd);
- emit_modrm_noreg(p, 7, dst);
- }
-}
-
-
-
-
-/***********************************************************************
- * MMX instructions
- */
-
-void mmx_emms( struct x86_function *p )
-{
- assert(p->need_emms);
- emit_2ub(p, 0x0f, 0x77);
- p->need_emms = 0;
-}
-
-void mmx_packssdw( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- assert(dst.file == file_MMX &&
- (src.file == file_MMX || src.mod != mod_REG));
-
- p->need_emms = 1;
-
- emit_2ub(p, X86_TWOB, 0x6b);
- emit_modrm( p, dst, src );
-}
-
-void mmx_packuswb( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- assert(dst.file == file_MMX &&
- (src.file == file_MMX || src.mod != mod_REG));
-
- p->need_emms = 1;
-
- emit_2ub(p, X86_TWOB, 0x67);
- emit_modrm( p, dst, src );
-}
-
-void mmx_movd( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- p->need_emms = 1;
- emit_1ub(p, X86_TWOB);
- emit_op_modrm( p, 0x6e, 0x7e, dst, src );
-}
-
-void mmx_movq( struct x86_function *p,
- struct x86_reg dst,
- struct x86_reg src )
-{
- p->need_emms = 1;
- emit_1ub(p, X86_TWOB);
- emit_op_modrm( p, 0x6f, 0x7f, dst, src );
-}
-
-
-/***********************************************************************
- * Helper functions
- */
-
-
-/* Retreive a reference to one of the function arguments, taking into
- * account any push/pop activity:
- */
-struct x86_reg x86_fn_arg( struct x86_function *p,
- unsigned arg )
-{
- return x86_make_disp(x86_make_reg(file_REG32, reg_SP),
- p->stack_offset + arg * 4); /* ??? */
-}
-
-
-void x86_init_func( struct x86_function *p )
-{
- p->size = 0;
- p->store = NULL;
- p->csr = p->store;
-}
-
-int x86_init_func_size( struct x86_function *p, unsigned code_size )
-{
- p->size = code_size;
- p->store = _mesa_exec_malloc(code_size);
- p->csr = p->store;
- return p->store != NULL;
-}
-
-void x86_release_func( struct x86_function *p )
-{
- _mesa_exec_free(p->store);
- p->store = NULL;
- p->csr = NULL;
- p->size = 0;
-}
-
-
-void (*x86_get_func( struct x86_function *p ))(void)
-{
- if (DISASSEM && p->store)
- printf("disassemble %p %p\n", p->store, p->csr);
- return (void (*)(void)) (unsigned long) p->store;
-}
-
-#else
-
-void x86sse_dummy( void )
-{
-}
-
-#endif
-
-#else /* USE_X86_ASM */
-
-int x86sse_c_dummy_var; /* silence warning */
-
-#endif /* USE_X86_ASM */
+#ifdef USE_X86_ASM +#if defined(__i386__) || defined(__386__) + +#include "main/imports.h" +#include "x86sse.h" + +#define DISASSEM 0 +#define X86_TWOB 0x0f + +#if 0 +static unsigned char *cptr( void (*label)() ) +{ + return (unsigned char *)(unsigned long)label; +} +#endif + + +static void do_realloc( struct x86_function *p ) +{ + if (p->size == 0) { + p->size = 1024; + p->store = _mesa_exec_malloc(p->size); + p->csr = p->store; + } + else { + unsigned used = p->csr - p->store; + unsigned char *tmp = p->store; + p->size *= 2; + p->store = _mesa_exec_malloc(p->size); + memcpy(p->store, tmp, used); + p->csr = p->store + used; + _mesa_exec_free(tmp); + } +} + +/* Emit bytes to the instruction stream: + */ +static unsigned char *reserve( struct x86_function *p, int bytes ) +{ + if (p->csr + bytes - p->store > p->size) + do_realloc(p); + + { + unsigned char *csr = p->csr; + p->csr += bytes; + return csr; + } +} + + + +static void emit_1b( struct x86_function *p, char b0 ) +{ + char *csr = (char *)reserve(p, 1); + *csr = b0; +} + +static void emit_1i( struct x86_function *p, int i0 ) +{ + int *icsr = (int *)reserve(p, sizeof(i0)); + *icsr = i0; +} + +static void emit_1ub( struct x86_function *p, unsigned char b0 ) +{ + unsigned char *csr = reserve(p, 1); + *csr++ = b0; +} + +static void emit_2ub( struct x86_function *p, unsigned char b0, unsigned char b1 ) +{ + unsigned char *csr = reserve(p, 2); + *csr++ = b0; + *csr++ = b1; +} + +static void emit_3ub( struct x86_function *p, unsigned char b0, unsigned char b1, unsigned char b2 ) +{ + unsigned char *csr = reserve(p, 3); + *csr++ = b0; + *csr++ = b1; + *csr++ = b2; +} + + +/* Build a modRM byte + possible displacement. No treatment of SIB + * indexing. BZZT - no way to encode an absolute address. + */ +static void emit_modrm( struct x86_function *p, + struct x86_reg reg, + struct x86_reg regmem ) +{ + unsigned char val = 0; + + assert(reg.mod == mod_REG); + + val |= regmem.mod << 6; /* mod field */ + val |= reg.idx << 3; /* reg field */ + val |= regmem.idx; /* r/m field */ + + emit_1ub(p, val); + + /* Oh-oh we've stumbled into the SIB thing. + */ + if (regmem.file == file_REG32 && + regmem.idx == reg_SP) { + emit_1ub(p, 0x24); /* simplistic! */ + } + + switch (regmem.mod) { + case mod_REG: + case mod_INDIRECT: + break; + case mod_DISP8: + emit_1b(p, regmem.disp); + break; + case mod_DISP32: + emit_1i(p, regmem.disp); + break; + default: + assert(0); + break; + } +} + + +static void emit_modrm_noreg( struct x86_function *p, + unsigned op, + struct x86_reg regmem ) +{ + struct x86_reg dummy = x86_make_reg(file_REG32, op); + emit_modrm(p, dummy, regmem); +} + +/* Many x86 instructions have two opcodes to cope with the situations + * where the destination is a register or memory reference + * respectively. This function selects the correct opcode based on + * the arguments presented. + */ +static void emit_op_modrm( struct x86_function *p, + unsigned char op_dst_is_reg, + unsigned char op_dst_is_mem, + struct x86_reg dst, + struct x86_reg src ) +{ + switch (dst.mod) { + case mod_REG: + emit_1ub(p, op_dst_is_reg); + emit_modrm(p, dst, src); + break; + case mod_INDIRECT: + case mod_DISP32: + case mod_DISP8: + assert(src.mod == mod_REG); + emit_1ub(p, op_dst_is_mem); + emit_modrm(p, src, dst); + break; + default: + assert(0); + break; + } +} + + + + + + + +/* Create and manipulate registers and regmem values: + */ +struct x86_reg x86_make_reg( enum x86_reg_file file, + enum x86_reg_name idx ) +{ + struct x86_reg reg; + + reg.file = file; + reg.idx = idx; + reg.mod = mod_REG; + reg.disp = 0; + + return reg; +} + +struct x86_reg x86_make_disp( struct x86_reg reg, + int disp ) +{ + assert(reg.file == file_REG32); + + if (reg.mod == mod_REG) + reg.disp = disp; + else + reg.disp += disp; + + if (reg.disp == 0) + reg.mod = mod_INDIRECT; + else if (reg.disp <= 127 && reg.disp >= -128) + reg.mod = mod_DISP8; + else + reg.mod = mod_DISP32; + + return reg; +} + +struct x86_reg x86_deref( struct x86_reg reg ) +{ + return x86_make_disp(reg, 0); +} + +struct x86_reg x86_get_base_reg( struct x86_reg reg ) +{ + return x86_make_reg( reg.file, reg.idx ); +} + +unsigned char *x86_get_label( struct x86_function *p ) +{ + return p->csr; +} + + + +/*********************************************************************** + * x86 instructions + */ + + +void x86_jcc( struct x86_function *p, + enum x86_cc cc, + unsigned char *label ) +{ + int offset = label - (x86_get_label(p) + 2); + + if (offset <= 127 && offset >= -128) { + emit_1ub(p, 0x70 + cc); + emit_1b(p, (char) offset); + } + else { + offset = label - (x86_get_label(p) + 6); + emit_2ub(p, 0x0f, 0x80 + cc); + emit_1i(p, offset); + } +} + +/* Always use a 32bit offset for forward jumps: + */ +unsigned char *x86_jcc_forward( struct x86_function *p, + enum x86_cc cc ) +{ + emit_2ub(p, 0x0f, 0x80 + cc); + emit_1i(p, 0); + return x86_get_label(p); +} + +unsigned char *x86_jmp_forward( struct x86_function *p) +{ + emit_1ub(p, 0xe9); + emit_1i(p, 0); + return x86_get_label(p); +} + +unsigned char *x86_call_forward( struct x86_function *p) +{ + emit_1ub(p, 0xe8); + emit_1i(p, 0); + return x86_get_label(p); +} + +/* Fixup offset from forward jump: + */ +void x86_fixup_fwd_jump( struct x86_function *p, + unsigned char *fixup ) +{ + *(int *)(fixup - 4) = x86_get_label(p) - fixup; +} + +void x86_jmp( struct x86_function *p, unsigned char *label) +{ + emit_1ub(p, 0xe9); + emit_1i(p, label - x86_get_label(p) - 4); +} + +#if 0 +/* This doesn't work once we start reallocating & copying the + * generated code on buffer fills, because the call is relative to the + * current pc. + */ +void x86_call( struct x86_function *p, void (*label)()) +{ + emit_1ub(p, 0xe8); + emit_1i(p, cptr(label) - x86_get_label(p) - 4); +} +#else +void x86_call( struct x86_function *p, struct x86_reg reg) +{ + emit_1ub(p, 0xff); + emit_modrm_noreg(p, 2, reg); +} +#endif + + +/* michal: + * Temporary. As I need immediate operands, and dont want to mess with the codegen, + * I load the immediate into general purpose register and use it. + */ +void x86_mov_reg_imm( struct x86_function *p, struct x86_reg dst, int imm ) +{ + assert(dst.mod == mod_REG); + emit_1ub(p, 0xb8 + dst.idx); + emit_1i(p, imm); +} + +void x86_push( struct x86_function *p, + struct x86_reg reg ) +{ + assert(reg.mod == mod_REG); + emit_1ub(p, 0x50 + reg.idx); + p->stack_offset += 4; +} + +void x86_pop( struct x86_function *p, + struct x86_reg reg ) +{ + assert(reg.mod == mod_REG); + emit_1ub(p, 0x58 + reg.idx); + p->stack_offset -= 4; +} + +void x86_inc( struct x86_function *p, + struct x86_reg reg ) +{ + assert(reg.mod == mod_REG); + emit_1ub(p, 0x40 + reg.idx); +} + +void x86_dec( struct x86_function *p, + struct x86_reg reg ) +{ + assert(reg.mod == mod_REG); + emit_1ub(p, 0x48 + reg.idx); +} + +void x86_ret( struct x86_function *p ) +{ + emit_1ub(p, 0xc3); +} + +void x86_sahf( struct x86_function *p ) +{ + emit_1ub(p, 0x9e); +} + +void x86_mov( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_op_modrm( p, 0x8b, 0x89, dst, src ); +} + +void x86_xor( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_op_modrm( p, 0x33, 0x31, dst, src ); +} + +void x86_cmp( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_op_modrm( p, 0x3b, 0x39, dst, src ); +} + +void x86_lea( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_1ub(p, 0x8d); + emit_modrm( p, dst, src ); +} + +void x86_test( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_1ub(p, 0x85); + emit_modrm( p, dst, src ); +} + +void x86_add( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_op_modrm(p, 0x03, 0x01, dst, src ); +} + +void x86_mul( struct x86_function *p, + struct x86_reg src ) +{ + assert (src.file == file_REG32 && src.mod == mod_REG); + emit_op_modrm(p, 0xf7, 0, x86_make_reg (file_REG32, reg_SP), src ); +} + +void x86_sub( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_op_modrm(p, 0x2b, 0x29, dst, src ); +} + +void x86_or( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_op_modrm( p, 0x0b, 0x09, dst, src ); +} + +void x86_and( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_op_modrm( p, 0x23, 0x21, dst, src ); +} + + + +/*********************************************************************** + * SSE instructions + */ + + +void sse_movss( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_2ub(p, 0xF3, X86_TWOB); + emit_op_modrm( p, 0x10, 0x11, dst, src ); +} + +void sse_movaps( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_1ub(p, X86_TWOB); + emit_op_modrm( p, 0x28, 0x29, dst, src ); +} + +void sse_movups( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_1ub(p, X86_TWOB); + emit_op_modrm( p, 0x10, 0x11, dst, src ); +} + +void sse_movhps( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + assert(dst.mod != mod_REG || src.mod != mod_REG); + emit_1ub(p, X86_TWOB); + emit_op_modrm( p, 0x16, 0x17, dst, src ); /* cf movlhps */ +} + +void sse_movlps( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + assert(dst.mod != mod_REG || src.mod != mod_REG); + emit_1ub(p, X86_TWOB); + emit_op_modrm( p, 0x12, 0x13, dst, src ); /* cf movhlps */ +} + +void sse_maxps( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_2ub(p, X86_TWOB, 0x5F); + emit_modrm( p, dst, src ); +} + +void sse_maxss( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_3ub(p, 0xF3, X86_TWOB, 0x5F); + emit_modrm( p, dst, src ); +} + +void sse_divss( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_3ub(p, 0xF3, X86_TWOB, 0x5E); + emit_modrm( p, dst, src ); +} + +void sse_minps( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_2ub(p, X86_TWOB, 0x5D); + emit_modrm( p, dst, src ); +} + +void sse_subps( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_2ub(p, X86_TWOB, 0x5C); + emit_modrm( p, dst, src ); +} + +void sse_mulps( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_2ub(p, X86_TWOB, 0x59); + emit_modrm( p, dst, src ); +} + +void sse_mulss( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_3ub(p, 0xF3, X86_TWOB, 0x59); + emit_modrm( p, dst, src ); +} + +void sse_addps( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_2ub(p, X86_TWOB, 0x58); + emit_modrm( p, dst, src ); +} + +void sse_addss( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_3ub(p, 0xF3, X86_TWOB, 0x58); + emit_modrm( p, dst, src ); +} + +void sse_andnps( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_2ub(p, X86_TWOB, 0x55); + emit_modrm( p, dst, src ); +} + +void sse_andps( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_2ub(p, X86_TWOB, 0x54); + emit_modrm( p, dst, src ); +} + +void sse_rsqrtps( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_2ub(p, X86_TWOB, 0x52); + emit_modrm( p, dst, src ); +} + +void sse_rsqrtss( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_3ub(p, 0xF3, X86_TWOB, 0x52); + emit_modrm( p, dst, src ); + +} + +void sse_movhlps( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + assert(dst.mod == mod_REG && src.mod == mod_REG); + emit_2ub(p, X86_TWOB, 0x12); + emit_modrm( p, dst, src ); +} + +void sse_movlhps( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + assert(dst.mod == mod_REG && src.mod == mod_REG); + emit_2ub(p, X86_TWOB, 0x16); + emit_modrm( p, dst, src ); +} + +void sse_orps( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_2ub(p, X86_TWOB, 0x56); + emit_modrm( p, dst, src ); +} + +void sse_xorps( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_2ub(p, X86_TWOB, 0x57); + emit_modrm( p, dst, src ); +} + +void sse_cvtps2pi( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + assert(dst.file == file_MMX && + (src.file == file_XMM || src.mod != mod_REG)); + + p->need_emms = 1; + + emit_2ub(p, X86_TWOB, 0x2d); + emit_modrm( p, dst, src ); +} + + +/* Shufps can also be used to implement a reduced swizzle when dest == + * arg0. + */ +void sse_shufps( struct x86_function *p, + struct x86_reg dest, + struct x86_reg arg0, + unsigned char shuf) +{ + emit_2ub(p, X86_TWOB, 0xC6); + emit_modrm(p, dest, arg0); + emit_1ub(p, shuf); +} + +void sse_cmpps( struct x86_function *p, + struct x86_reg dest, + struct x86_reg arg0, + unsigned char cc) +{ + emit_2ub(p, X86_TWOB, 0xC2); + emit_modrm(p, dest, arg0); + emit_1ub(p, cc); +} + +void sse_pmovmskb( struct x86_function *p, + struct x86_reg dest, + struct x86_reg src) +{ + emit_3ub(p, 0x66, X86_TWOB, 0xD7); + emit_modrm(p, dest, src); +} + +/*********************************************************************** + * SSE2 instructions + */ + +/** + * Perform a reduced swizzle: + */ +void sse2_pshufd( struct x86_function *p, + struct x86_reg dest, + struct x86_reg arg0, + unsigned char shuf) +{ + emit_3ub(p, 0x66, X86_TWOB, 0x70); + emit_modrm(p, dest, arg0); + emit_1ub(p, shuf); +} + +void sse2_cvttps2dq( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_3ub( p, 0xF3, X86_TWOB, 0x5B ); + emit_modrm( p, dst, src ); +} + +void sse2_cvtps2dq( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_3ub(p, 0x66, X86_TWOB, 0x5B); + emit_modrm( p, dst, src ); +} + +void sse2_packssdw( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_3ub(p, 0x66, X86_TWOB, 0x6B); + emit_modrm( p, dst, src ); +} + +void sse2_packsswb( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_3ub(p, 0x66, X86_TWOB, 0x63); + emit_modrm( p, dst, src ); +} + +void sse2_packuswb( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_3ub(p, 0x66, X86_TWOB, 0x67); + emit_modrm( p, dst, src ); +} + +void sse2_rcpps( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_2ub(p, X86_TWOB, 0x53); + emit_modrm( p, dst, src ); +} + +void sse2_rcpss( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_3ub(p, 0xF3, X86_TWOB, 0x53); + emit_modrm( p, dst, src ); +} + +void sse2_movd( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + emit_2ub(p, 0x66, X86_TWOB); + emit_op_modrm( p, 0x6e, 0x7e, dst, src ); +} + + + + +/*********************************************************************** + * x87 instructions + */ +void x87_fist( struct x86_function *p, struct x86_reg dst ) +{ + emit_1ub(p, 0xdb); + emit_modrm_noreg(p, 2, dst); +} + +void x87_fistp( struct x86_function *p, struct x86_reg dst ) +{ + emit_1ub(p, 0xdb); + emit_modrm_noreg(p, 3, dst); +} + +void x87_fild( struct x86_function *p, struct x86_reg arg ) +{ + emit_1ub(p, 0xdf); + emit_modrm_noreg(p, 0, arg); +} + +void x87_fldz( struct x86_function *p ) +{ + emit_2ub(p, 0xd9, 0xee); +} + + +void x87_fldcw( struct x86_function *p, struct x86_reg arg ) +{ + assert(arg.file == file_REG32); + assert(arg.mod != mod_REG); + emit_1ub(p, 0xd9); + emit_modrm_noreg(p, 5, arg); +} + +void x87_fld1( struct x86_function *p ) +{ + emit_2ub(p, 0xd9, 0xe8); +} + +void x87_fldl2e( struct x86_function *p ) +{ + emit_2ub(p, 0xd9, 0xea); +} + +void x87_fldln2( struct x86_function *p ) +{ + emit_2ub(p, 0xd9, 0xed); +} + +void x87_fwait( struct x86_function *p ) +{ + emit_1ub(p, 0x9b); +} + +void x87_fnclex( struct x86_function *p ) +{ + emit_2ub(p, 0xdb, 0xe2); +} + +void x87_fclex( struct x86_function *p ) +{ + x87_fwait(p); + x87_fnclex(p); +} + + +static void x87_arith_op( struct x86_function *p, struct x86_reg dst, struct x86_reg arg, + unsigned char dst0ub0, + unsigned char dst0ub1, + unsigned char arg0ub0, + unsigned char arg0ub1, + unsigned char argmem_noreg) +{ + assert(dst.file == file_x87); + + if (arg.file == file_x87) { + if (dst.idx == 0) + emit_2ub(p, dst0ub0, dst0ub1+arg.idx); + else if (arg.idx == 0) + emit_2ub(p, arg0ub0, arg0ub1+arg.idx); + else + assert(0); + } + else if (dst.idx == 0) { + assert(arg.file == file_REG32); + emit_1ub(p, 0xd8); + emit_modrm_noreg(p, argmem_noreg, arg); + } + else + assert(0); +} + +void x87_fmul( struct x86_function *p, struct x86_reg dst, struct x86_reg arg ) +{ + x87_arith_op(p, dst, arg, + 0xd8, 0xc8, + 0xdc, 0xc8, + 4); +} + +void x87_fsub( struct x86_function *p, struct x86_reg dst, struct x86_reg arg ) +{ + x87_arith_op(p, dst, arg, + 0xd8, 0xe0, + 0xdc, 0xe8, + 4); +} + +void x87_fsubr( struct x86_function *p, struct x86_reg dst, struct x86_reg arg ) +{ + x87_arith_op(p, dst, arg, + 0xd8, 0xe8, + 0xdc, 0xe0, + 5); +} + +void x87_fadd( struct x86_function *p, struct x86_reg dst, struct x86_reg arg ) +{ + x87_arith_op(p, dst, arg, + 0xd8, 0xc0, + 0xdc, 0xc0, + 0); +} + +void x87_fdiv( struct x86_function *p, struct x86_reg dst, struct x86_reg arg ) +{ + x87_arith_op(p, dst, arg, + 0xd8, 0xf0, + 0xdc, 0xf8, + 6); +} + +void x87_fdivr( struct x86_function *p, struct x86_reg dst, struct x86_reg arg ) +{ + x87_arith_op(p, dst, arg, + 0xd8, 0xf8, + 0xdc, 0xf0, + 7); +} + +void x87_fmulp( struct x86_function *p, struct x86_reg dst ) +{ + assert(dst.file == file_x87); + assert(dst.idx >= 1); + emit_2ub(p, 0xde, 0xc8+dst.idx); +} + +void x87_fsubp( struct x86_function *p, struct x86_reg dst ) +{ + assert(dst.file == file_x87); + assert(dst.idx >= 1); + emit_2ub(p, 0xde, 0xe8+dst.idx); +} + +void x87_fsubrp( struct x86_function *p, struct x86_reg dst ) +{ + assert(dst.file == file_x87); + assert(dst.idx >= 1); + emit_2ub(p, 0xde, 0xe0+dst.idx); +} + +void x87_faddp( struct x86_function *p, struct x86_reg dst ) +{ + assert(dst.file == file_x87); + assert(dst.idx >= 1); + emit_2ub(p, 0xde, 0xc0+dst.idx); +} + +void x87_fdivp( struct x86_function *p, struct x86_reg dst ) +{ + assert(dst.file == file_x87); + assert(dst.idx >= 1); + emit_2ub(p, 0xde, 0xf8+dst.idx); +} + +void x87_fdivrp( struct x86_function *p, struct x86_reg dst ) +{ + assert(dst.file == file_x87); + assert(dst.idx >= 1); + emit_2ub(p, 0xde, 0xf0+dst.idx); +} + +void x87_fucom( struct x86_function *p, struct x86_reg arg ) +{ + assert(arg.file == file_x87); + emit_2ub(p, 0xdd, 0xe0+arg.idx); +} + +void x87_fucomp( struct x86_function *p, struct x86_reg arg ) +{ + assert(arg.file == file_x87); + emit_2ub(p, 0xdd, 0xe8+arg.idx); +} + +void x87_fucompp( struct x86_function *p ) +{ + emit_2ub(p, 0xda, 0xe9); +} + +void x87_fxch( struct x86_function *p, struct x86_reg arg ) +{ + assert(arg.file == file_x87); + emit_2ub(p, 0xd9, 0xc8+arg.idx); +} + +void x87_fabs( struct x86_function *p ) +{ + emit_2ub(p, 0xd9, 0xe1); +} + +void x87_fchs( struct x86_function *p ) +{ + emit_2ub(p, 0xd9, 0xe0); +} + +void x87_fcos( struct x86_function *p ) +{ + emit_2ub(p, 0xd9, 0xff); +} + + +void x87_fprndint( struct x86_function *p ) +{ + emit_2ub(p, 0xd9, 0xfc); +} + +void x87_fscale( struct x86_function *p ) +{ + emit_2ub(p, 0xd9, 0xfd); +} + +void x87_fsin( struct x86_function *p ) +{ + emit_2ub(p, 0xd9, 0xfe); +} + +void x87_fsincos( struct x86_function *p ) +{ + emit_2ub(p, 0xd9, 0xfb); +} + +void x87_fsqrt( struct x86_function *p ) +{ + emit_2ub(p, 0xd9, 0xfa); +} + +void x87_fxtract( struct x86_function *p ) +{ + emit_2ub(p, 0xd9, 0xf4); +} + +/* st0 = (2^st0)-1 + * + * Restrictions: -1.0 <= st0 <= 1.0 + */ +void x87_f2xm1( struct x86_function *p ) +{ + emit_2ub(p, 0xd9, 0xf0); +} + +/* st1 = st1 * log2(st0); + * pop_stack; + */ +void x87_fyl2x( struct x86_function *p ) +{ + emit_2ub(p, 0xd9, 0xf1); +} + +/* st1 = st1 * log2(st0 + 1.0); + * pop_stack; + * + * A fast operation, with restrictions: -.29 < st0 < .29 + */ +void x87_fyl2xp1( struct x86_function *p ) +{ + emit_2ub(p, 0xd9, 0xf9); +} + + +void x87_fld( struct x86_function *p, struct x86_reg arg ) +{ + if (arg.file == file_x87) + emit_2ub(p, 0xd9, 0xc0 + arg.idx); + else { + emit_1ub(p, 0xd9); + emit_modrm_noreg(p, 0, arg); + } +} + +void x87_fst( struct x86_function *p, struct x86_reg dst ) +{ + if (dst.file == file_x87) + emit_2ub(p, 0xdd, 0xd0 + dst.idx); + else { + emit_1ub(p, 0xd9); + emit_modrm_noreg(p, 2, dst); + } +} + +void x87_fstp( struct x86_function *p, struct x86_reg dst ) +{ + if (dst.file == file_x87) + emit_2ub(p, 0xdd, 0xd8 + dst.idx); + else { + emit_1ub(p, 0xd9); + emit_modrm_noreg(p, 3, dst); + } +} + +void x87_fcom( struct x86_function *p, struct x86_reg dst ) +{ + if (dst.file == file_x87) + emit_2ub(p, 0xd8, 0xd0 + dst.idx); + else { + emit_1ub(p, 0xd8); + emit_modrm_noreg(p, 2, dst); + } +} + +void x87_fcomp( struct x86_function *p, struct x86_reg dst ) +{ + if (dst.file == file_x87) + emit_2ub(p, 0xd8, 0xd8 + dst.idx); + else { + emit_1ub(p, 0xd8); + emit_modrm_noreg(p, 3, dst); + } +} + + +void x87_fnstsw( struct x86_function *p, struct x86_reg dst ) +{ + assert(dst.file == file_REG32); + + if (dst.idx == reg_AX && + dst.mod == mod_REG) + emit_2ub(p, 0xdf, 0xe0); + else { + emit_1ub(p, 0xdd); + emit_modrm_noreg(p, 7, dst); + } +} + + + + +/*********************************************************************** + * MMX instructions + */ + +void mmx_emms( struct x86_function *p ) +{ + assert(p->need_emms); + emit_2ub(p, 0x0f, 0x77); + p->need_emms = 0; +} + +void mmx_packssdw( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + assert(dst.file == file_MMX && + (src.file == file_MMX || src.mod != mod_REG)); + + p->need_emms = 1; + + emit_2ub(p, X86_TWOB, 0x6b); + emit_modrm( p, dst, src ); +} + +void mmx_packuswb( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + assert(dst.file == file_MMX && + (src.file == file_MMX || src.mod != mod_REG)); + + p->need_emms = 1; + + emit_2ub(p, X86_TWOB, 0x67); + emit_modrm( p, dst, src ); +} + +void mmx_movd( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + p->need_emms = 1; + emit_1ub(p, X86_TWOB); + emit_op_modrm( p, 0x6e, 0x7e, dst, src ); +} + +void mmx_movq( struct x86_function *p, + struct x86_reg dst, + struct x86_reg src ) +{ + p->need_emms = 1; + emit_1ub(p, X86_TWOB); + emit_op_modrm( p, 0x6f, 0x7f, dst, src ); +} + + +/*********************************************************************** + * Helper functions + */ + + +/* Retreive a reference to one of the function arguments, taking into + * account any push/pop activity: + */ +struct x86_reg x86_fn_arg( struct x86_function *p, + unsigned arg ) +{ + return x86_make_disp(x86_make_reg(file_REG32, reg_SP), + p->stack_offset + arg * 4); /* ??? */ +} + + +void x86_init_func( struct x86_function *p ) +{ + p->size = 0; + p->store = NULL; + p->csr = p->store; +} + +int x86_init_func_size( struct x86_function *p, unsigned code_size ) +{ + p->size = code_size; + p->store = _mesa_exec_malloc(code_size); + p->csr = p->store; + return p->store != NULL; +} + +void x86_release_func( struct x86_function *p ) +{ + _mesa_exec_free(p->store); + p->store = NULL; + p->csr = NULL; + p->size = 0; +} + + +void (*x86_get_func( struct x86_function *p ))(void) +{ + if (DISASSEM && p->store) + printf("disassemble %p %p\n", p->store, p->csr); + return (void (*)(void)) (unsigned long) p->store; +} + +#else + +void x86sse_dummy( void ) +{ +} + +#endif + +#else /* USE_X86_ASM */ + +int x86sse_c_dummy_var; /* silence warning */ + +#endif /* USE_X86_ASM */ |