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https://github.com/yuzu-emu/yuzu.git
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- moved mmu to arm/interpreter folder
- added initial VFP code from skyeye
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bunnei
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src/core/arm/interpreter/vfp/vfp.h
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src/core/arm/interpreter/vfp/vfp.h
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/*
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vfp/vfp.h - ARM VFPv3 emulation unit - vfp interface
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Copyright (C) 2003 Skyeye Develop Group
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for help please send mail to <skyeye-developer@lists.gro.clinux.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __VFP_H__
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#define __VFP_H__
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#define DBG(msg) DEBUG_LOG(ARM11, msg)
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#define vfpdebug //printf
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#include "core/arm/interpreter/vfp/vfp_helper.h" /* for references to cdp SoftFloat functions */
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unsigned VFPInit (ARMul_State *state);
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unsigned VFPMRC (ARMul_State * state, unsigned type, ARMword instr, ARMword * value);
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unsigned VFPMCR (ARMul_State * state, unsigned type, ARMword instr, ARMword value);
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unsigned VFPMRRC (ARMul_State * state, unsigned type, ARMword instr, ARMword * value1, ARMword * value2);
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unsigned VFPMCRR (ARMul_State * state, unsigned type, ARMword instr, ARMword value1, ARMword value2);
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unsigned VFPSTC (ARMul_State * state, unsigned type, ARMword instr, ARMword * value);
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unsigned VFPLDC (ARMul_State * state, unsigned type, ARMword instr, ARMword value);
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unsigned VFPCDP (ARMul_State * state, unsigned type, ARMword instr);
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/* FPSID Information */
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#define VFP_FPSID_IMPLMEN 0 /* should be the same as cp15 0 c0 0*/
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#define VFP_FPSID_SW 0
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#define VFP_FPSID_SUBARCH 0x2 /* VFP version. Current is v3 (not strict) */
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#define VFP_FPSID_PARTNUM 0x1
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#define VFP_FPSID_VARIANT 0x1
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#define VFP_FPSID_REVISION 0x1
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/* FPEXC Flags */
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#define VFP_FPEXC_EX 1<<31
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#define VFP_FPEXC_EN 1<<30
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/* FPSCR Flags */
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#define VFP_FPSCR_NFLAG 1<<31
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#define VFP_FPSCR_ZFLAG 1<<30
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#define VFP_FPSCR_CFLAG 1<<29
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#define VFP_FPSCR_VFLAG 1<<28
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#define VFP_FPSCR_AHP 1<<26 /* Alternative Half Precision */
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#define VFP_FPSCR_DN 1<<25 /* Default NaN */
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#define VFP_FPSCR_FZ 1<<24 /* Flush-to-zero */
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#define VFP_FPSCR_RMODE 3<<22 /* Rounding Mode */
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#define VFP_FPSCR_STRIDE 3<<20 /* Stride (vector) */
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#define VFP_FPSCR_LEN 7<<16 /* Stride (vector) */
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#define VFP_FPSCR_IDE 1<<15 /* Input Denormal exc */
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#define VFP_FPSCR_IXE 1<<12 /* Inexact exc */
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#define VFP_FPSCR_UFE 1<<11 /* Undeflow exc */
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#define VFP_FPSCR_OFE 1<<10 /* Overflow exc */
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#define VFP_FPSCR_DZE 1<<9 /* Division by Zero exc */
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#define VFP_FPSCR_IOE 1<<8 /* Invalid Operation exc */
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#define VFP_FPSCR_IDC 1<<7 /* Input Denormal cum exc */
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#define VFP_FPSCR_IXC 1<<4 /* Inexact cum exc */
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#define VFP_FPSCR_UFC 1<<3 /* Undeflow cum exc */
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#define VFP_FPSCR_OFC 1<<2 /* Overflow cum exc */
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#define VFP_FPSCR_DZC 1<<1 /* Division by Zero cum exc */
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#define VFP_FPSCR_IOC 1<<0 /* Invalid Operation cum exc */
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/* Inline instructions. Note: Used in a cpp file as well */
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#ifdef __cplusplus
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extern "C" {
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#endif
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int32_t vfp_get_float(ARMul_State * state, unsigned int reg);
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void vfp_put_float(ARMul_State * state, int32_t val, unsigned int reg);
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uint64_t vfp_get_double(ARMul_State * state, unsigned int reg);
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void vfp_put_double(ARMul_State * state, uint64_t val, unsigned int reg);
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void vfp_raise_exceptions(ARMul_State * state, uint32_t exceptions, uint32_t inst, uint32_t fpscr);
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extern uint32_t vfp_single_cpdo(ARMul_State * state, uint32_t inst, uint32_t fpscr);
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extern uint32_t vfp_double_cpdo(ARMul_State * state, uint32_t inst, uint32_t fpscr);
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/* MRC */
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inline void VMRS(ARMul_State * state, ARMword reg, ARMword Rt, ARMword *value);
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inline void VMOVBRS(ARMul_State * state, ARMword to_arm, ARMword t, ARMword n, ARMword *value);
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inline void VMOVBRRD(ARMul_State * state, ARMword to_arm, ARMword t, ARMword t2, ARMword n, ARMword *value1, ARMword *value2);
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inline void VMOVI(ARMul_State * state, ARMword single, ARMword d, ARMword imm);
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inline void VMOVR(ARMul_State * state, ARMword single, ARMword d, ARMword imm);
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/* MCR */
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inline void VMSR(ARMul_State * state, ARMword reg, ARMword Rt);
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/* STC */
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inline int VSTM(ARMul_State * state, int type, ARMword instr, ARMword* value);
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inline int VPUSH(ARMul_State * state, int type, ARMword instr, ARMword* value);
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inline int VSTR(ARMul_State * state, int type, ARMword instr, ARMword* value);
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/* LDC */
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inline int VLDM(ARMul_State * state, int type, ARMword instr, ARMword value);
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inline int VPOP(ARMul_State * state, int type, ARMword instr, ARMword value);
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inline int VLDR(ARMul_State * state, int type, ARMword instr, ARMword value);
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#ifdef __cplusplus
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}
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#endif
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#endif
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