+++ /dev/null
-#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
- */
-
-
-/* Retrieve 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 */
projects / reactos.git / blobdiff