flycast/core/hw/arm7/arm_mem.h

62 lines
1.1 KiB
C++

#pragma once
#include "types.h"
#include "hw/aica/aica_if.h"
template <u32 sz,class T>
T arm_ReadReg(u32 addr);
template <u32 sz,class T>
void arm_WriteReg(u32 addr,T data);
template<int sz,typename T>
static inline T DYNACALL ReadMemArm(u32 addr)
{
addr&=0x00FFFFFF;
if (addr<0x800000)
{
T rv=*(T*)&aica_ram[addr&(ARAM_MASK-(sz-1))];
if (unlikely(sz==4 && addr&3))
{
u32 sf=(addr&3)*8;
return (rv>>sf) | (rv<<(32-sf));
}
else
return rv;
}
else
{
return arm_ReadReg<sz,T>(addr);
}
}
template<int sz,typename T>
static inline void DYNACALL WriteMemArm(u32 addr,T data)
{
addr&=0x00FFFFFF;
if (addr<0x800000)
{
*(T*)&aica_ram[addr&(ARAM_MASK-(sz-1))]=data;
}
else
{
arm_WriteReg<sz,T>(addr,data);
}
}
#define arm_ReadMem8 ReadMemArm<1,u8>
#define arm_ReadMem16 ReadMemArm<2,u16>
#define arm_ReadMem32 ReadMemArm<4,u32>
#define arm_WriteMem8 WriteMemArm<1,u8>
#define arm_WriteMem16 WriteMemArm<2,u16>
#define arm_WriteMem32 WriteMemArm<4,u32>
extern bool aica_interr;
extern u32 aica_reg_L;
extern bool e68k_out;
extern u32 e68k_reg_L;
extern u32 e68k_reg_M;
void update_armintc();
void libARM_InterruptChange(u32 bits, u32 L);