mirror of https://github.com/PCSX2/pcsx2.git
61 lines
1.5 KiB
C++
61 lines
1.5 KiB
C++
// SPDX-FileCopyrightText: 2002-2024 PCSX2 Dev Team
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// SPDX-License-Identifier: GPL-3.0+
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#include "common/emitter/legacy_internal.h"
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//------------------------------------------------------------------
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// FPU instructions
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//------------------------------------------------------------------
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/* fld m32 to fpu reg stack */
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emitterT void FLD32(u32 from)
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{
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xWrite8(0xD9);
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ModRM(0, 0x0, DISP32);
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xWrite32(MEMADDR(from, 4));
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}
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// fld st(i)
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emitterT void FLD(int st) { xWrite16(0xc0d9 + (st << 8)); }
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emitterT void FLD1() { xWrite16(0xe8d9); }
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emitterT void FLDL2E() { xWrite16(0xead9); }
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/* fstp m32 from fpu reg stack */
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emitterT void FSTP32(u32 to)
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{
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xWrite8(0xD9);
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ModRM(0, 0x3, DISP32);
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xWrite32(MEMADDR(to, 4));
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}
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// fstp st(i)
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emitterT void FSTP(int st) { xWrite16(0xd8dd + (st << 8)); }
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emitterT void FRNDINT() { xWrite16(0xfcd9); }
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emitterT void FXCH(int st) { xWrite16(0xc8d9 + (st << 8)); }
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emitterT void F2XM1() { xWrite16(0xf0d9); }
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emitterT void FSCALE() { xWrite16(0xfdd9); }
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emitterT void FPATAN(void) { xWrite16(0xf3d9); }
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emitterT void FSIN(void) { xWrite16(0xfed9); }
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/* fadd ST(0) to fpu reg stack ST(src) */
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emitterT void FADD320toR(x86IntRegType src)
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{
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xWrite8(0xDC);
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xWrite8(0xC0 + src);
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}
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/* fsub ST(src) to fpu reg stack ST(0) */
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emitterT void FSUB32Rto0(x86IntRegType src)
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{
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xWrite8(0xD8);
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xWrite8(0xE0 + src);
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}
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/* fmul m32 to fpu reg stack */
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emitterT void FMUL32(u32 from)
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{
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xWrite8(0xD8);
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ModRM(0, 0x1, DISP32);
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xWrite32(MEMADDR(from, 4));
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}
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