diff options
Diffstat (limited to 'target-mips')
| -rw-r--r-- | target-mips/exec.h | 2 | ||||
| -rw-r--r-- | target-mips/op.c | 67 | ||||
| -rw-r--r-- | target-mips/op_helper.c | 13 |
3 files changed, 33 insertions, 49 deletions
diff --git a/target-mips/exec.h b/target-mips/exec.h index c6dc25cf6e..61c09acb66 100644 --- a/target-mips/exec.h +++ b/target-mips/exec.h @@ -70,6 +70,8 @@ void do_dsllv (void); void do_dsrav (void); void do_dsrlv (void); void do_drotrv (void); +void do_dclo (void); +void do_dclz (void); #endif #endif diff --git a/target-mips/op.c b/target-mips/op.c index 1ecec9a57a..9e8324d49b 100644 --- a/target-mips/op.c +++ b/target-mips/op.c @@ -22,6 +22,7 @@ #include "config.h" #include "exec.h" +#include "host-utils.h" #ifndef CALL_FROM_TB0 #define CALL_FROM_TB0(func) func() @@ -537,35 +538,13 @@ void op_rotrv (void) void op_clo (void) { - int n; - - if (T0 == ~((target_ulong)0)) { - T0 = 32; - } else { - for (n = 0; n < 32; n++) { - if (!(((int32_t)T0) & (1 << 31))) - break; - T0 <<= 1; - } - T0 = n; - } + T0 = clo32(T0); RETURN(); } void op_clz (void) { - int n; - - if (T0 == 0) { - T0 = 32; - } else { - for (n = 0; n < 32; n++) { - if (T0 & (1 << 31)) - break; - T0 <<= 1; - } - T0 = n; - } + T0 = clz32(T0); RETURN(); } @@ -645,6 +624,18 @@ void op_drotrv (void) RETURN(); } +void op_dclo (void) +{ + CALL_FROM_TB0(do_dclo); + RETURN(); +} + +void op_dclz (void) +{ + CALL_FROM_TB0(do_dclz); + RETURN(); +} + #else /* TARGET_LONG_BITS > HOST_LONG_BITS */ void op_dsll (void) @@ -735,41 +726,19 @@ void op_drotrv (void) T0 = T1; RETURN(); } -#endif /* TARGET_LONG_BITS > HOST_LONG_BITS */ void op_dclo (void) { - int n; - - if (T0 == ~((target_ulong)0)) { - T0 = 64; - } else { - for (n = 0; n < 64; n++) { - if (!(T0 & (1ULL << 63))) - break; - T0 <<= 1; - } - T0 = n; - } + T0 = clo64(T0); RETURN(); } void op_dclz (void) { - int n; - - if (T0 == 0) { - T0 = 64; - } else { - for (n = 0; n < 64; n++) { - if (T0 & (1ULL << 63)) - break; - T0 <<= 1; - } - T0 = n; - } + T0 = clz64(T0); RETURN(); } +#endif /* TARGET_LONG_BITS > HOST_LONG_BITS */ #endif /* TARGET_MIPSN32 || TARGET_MIPS64 */ /* 64 bits arithmetic */ diff --git a/target-mips/op_helper.c b/target-mips/op_helper.c index f3e01202e6..ff26ab5afa 100644 --- a/target-mips/op_helper.c +++ b/target-mips/op_helper.c @@ -20,6 +20,8 @@ #include <stdlib.h> #include "exec.h" +#include "host-utils.h" + #define GETPC() (__builtin_return_address(0)) /*****************************************************************************/ @@ -141,6 +143,17 @@ void do_drotrv (void) } else T0 = T1; } + +void do_dclo (void) +{ + T0 = clo64(T0); +} + +void do_dclz (void) +{ + T0 = clz64(T0); +} + #endif /* TARGET_LONG_BITS > HOST_LONG_BITS */ #endif /* TARGET_MIPSN32 || TARGET_MIPS64 */ |