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target-mips: extend selected CP0 registers to 64-bits in MIPS32

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Extend EntryLo0, EntryLo1, LLAddr and TagLo from 32 to 64 bits in MIPS32.

Introduce gen_move_low32() function which moves low 32 bits from 64-bit
temp to GPR; it sign extends 32-bit value on MIPS64 and truncates on
MIPS32.

Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Leon Alrae 2015-06-09 17:14:13 +01:00
parent b435f3f3d1
commit 284b731a6a
4 changed files with 63 additions and 42 deletions
Download patch file Download diff file Expand all files Collapse all files

14
target-mips/cpu.h
View file

@ -34,7 +34,7 @@ struct r4k_tlb_t {
uint_fast16_t RI0:1;
uint_fast16_t RI1:1;
uint_fast16_t EHINV:1;
target_ulong PFN[2];
uint64_t PFN[2];
};
#if !defined(CONFIG_USER_ONLY)
@ -225,7 +225,7 @@ struct CPUMIPSState {
uint32_t SEGBITS;
uint32_t PABITS;
target_ulong SEGMask;
target_ulong PAMask;
uint64_t PAMask;
int32_t msair;
#define MSAIR_ProcID 8
@ -273,8 +273,8 @@ struct CPUMIPSState {
#define CP0VPEOpt_DWX2 2
#define CP0VPEOpt_DWX1 1
#define CP0VPEOpt_DWX0 0
target_ulong CP0_EntryLo0;
target_ulong CP0_EntryLo1;
uint64_t CP0_EntryLo0;
uint64_t CP0_EntryLo1;
#if defined(TARGET_MIPS64)
# define CP0EnLo_RI 63
# define CP0EnLo_XI 62
@ -472,11 +472,11 @@ struct CPUMIPSState {
int32_t CP0_Config6;
int32_t CP0_Config7;
/* XXX: Maybe make LLAddr per-TC? */
target_ulong lladdr;
uint64_t lladdr;
target_ulong llval;
target_ulong llnewval;
target_ulong llreg;
target_ulong CP0_LLAddr_rw_bitmask;
uint64_t CP0_LLAddr_rw_bitmask;
int CP0_LLAddr_shift;
target_ulong CP0_WatchLo[8];
int32_t CP0_WatchHi[8];
@ -503,7 +503,7 @@ struct CPUMIPSState {
#define CP0DB_DSS 0
target_ulong CP0_DEPC;
int32_t CP0_Performance0;
int32_t CP0_TagLo;
uint64_t CP0_TagLo;
int32_t CP0_DataLo;
int32_t CP0_TagHi;
int32_t CP0_DataHi;