// license:BSD-3-Clause // copyright-holders:R. Belmont /***************************************************************************** * * sh4comn.h * * SH-4 non-specific components * *****************************************************************************/ #pragma once #ifndef __SH4COMN_H__ #define __SH4COMN_H__ #include "sh.h" #define VERBOSE 0 #define LOG(x) do { if (VERBOSE) logerror x; } while (0) #define EXPPRI(pl,po,p,n) (((4-(pl)) << 24) | ((15-(po)) << 16) | ((p) << 8) | (255-(n))) #define NMIPRI() EXPPRI(3,0,16,SH4_INTC_NMI) #define INTPRI(p,n) EXPPRI(4,2,p,n) #define FP_RS(r) m_fr[(r)] // binary representation of single precision floating point register r #define FP_RFS(r) *( (float *)(m_fr+(r)) ) // single precision floating point register r #define FP_RFD(r) *( (double *)(m_fr+(r)) ) // double precision floating point register r #define FP_XS(r) m_xf[(r)] // binary representation of extended single precision floating point register r #define FP_XFS(r) *( (float *)(m_xf+(r)) ) // single precision extended floating point register r #define FP_XFD(r) *( (double *)(m_xf+(r)) ) // double precision extended floating point register r #ifdef LSB_FIRST #define FP_RS2(r) m_fr[(r) ^ m_fpu_pr] #define FP_RFS2(r) *( (float *)(m_fr+((r) ^ m_fpu_pr)) ) #define FP_XS2(r) m_xf[(r) ^ m_fpu_pr] #define FP_XFS2(r) *( (float *)(m_xf+((r) ^ m_fpu_pr)) ) #endif enum { ICF = 0x00800000, OCFA = 0x00080000, OCFB = 0x00040000, OVF = 0x00020000 }; #define FD 0x00008000 #define BL 0x10000000 #define sRB 0x20000000 #define MD 0x40000000 /* 29 bits */ #define SH34_AM 0x1fffffff #define SH34_FLAGS (MD|sRB|BL|FD|SH_M|SH_Q|SH_I|SH_S|SH_T) /* Bits in FPSCR */ #define RM 0x00000003 #define DN 0x00040000 #define PR 0x00080000 #define SZ 0x00100000 #define FR 0x00200000 #define REGFLAG_R(n) (1 << (n)) /* additional register flags 1 */ #define REGFLAG_SGR (1 << 6) #define REGFLAG_FPUL (1 << 7) #define REGFLAG_FPSCR (1 << 8) #define REGFLAG_DBR (1 << 9) #define REGFLAG_SSR (1 << 10) #define REGFLAG_SPC (1 << 11) #endif /* __SH4COMN_H__ */