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dyncom: Make Load/Store instructions support big endian

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This commit is contained in:
Lioncash 2015-03-11 16:10:14 -04:00
parent f280806214
commit 9fdb311d6e
7 changed files with 204 additions and 81 deletions
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55
src/core/arm/skyeye_common/armmmu.h
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@ -20,6 +20,9 @@
#pragma once
#include "core/mem_map.h"
#include "core/arm/skyeye_common/armdefs.h"
// Register numbers in the MMU
enum
{
@ -54,3 +57,55 @@ enum
XSCALE_CP15_AUX_CONTROL = 1,
XSCALE_CP15_COPRO_ACCESS = 15,
};
// Reads data in big/little endian format based on the
// state of the E (endian) bit in the emulated CPU's APSR.
inline u16 ReadMemory16(ARMul_State* cpu, u32 address) {
u16 data = Memory::Read16(address);
if (InBigEndianMode(cpu))
data = Common::swap16(data);
return data;
}
inline u32 ReadMemory32(ARMul_State* cpu, u32 address) {
u32 data = Memory::Read32(address);
if (InBigEndianMode(cpu))
data = Common::swap32(data);
return data;
}
inline u64 ReadMemory64(ARMul_State* cpu, u32 address) {
u64 data = Memory::Read64(address);
if (InBigEndianMode(cpu))
data = Common::swap64(data);
return data;
}
// Writes data in big/little endian format based on the
// state of the E (endian) bit in the emulated CPU's APSR.
inline void WriteMemory16(ARMul_State* cpu, u32 address, u16 data) {
if (InBigEndianMode(cpu))
data = Common::swap16(data);
Memory::Write16(address, data);
}
inline void WriteMemory32(ARMul_State* cpu, u32 address, u32 data) {
if (InBigEndianMode(cpu))
data = Common::swap32(data);
Memory::Write32(address, data);
}
inline void WriteMemory64(ARMul_State* cpu, u32 address, u64 data) {
if (InBigEndianMode(cpu))
data = Common::swap64(data);
Memory::Write64(address, data);
}