diff options
Diffstat (limited to 'src/vm/arm64/crthelpers.S')
| -rw-r--r-- | src/vm/arm64/crthelpers.S | 27 |
1 files changed, 11 insertions, 16 deletions
diff --git a/src/vm/arm64/crthelpers.S b/src/vm/arm64/crthelpers.S index 2c677e0a31..36eb4ee7a3 100644 --- a/src/vm/arm64/crthelpers.S +++ b/src/vm/arm64/crthelpers.S @@ -18,7 +18,7 @@ // //void JIT_MemSet(void *dst, int val, SIZE_T count) // -// uintptr_t valEx = (char)val; +// uintptr_t valEx = (unsigned char)val; // valEx = valEx | valEx << 8; // valEx = valEx | valEx << 16; // valEx = valEx | valEx << 32; @@ -52,7 +52,7 @@ // } // } // -// while(count > 8) +// while(count >= 8) // { // *(uintptr_t*)dst = valEx; // dst = (uintptr_t*)dst + 1; @@ -85,7 +85,7 @@ // as C++ method. LEAF_ENTRY JIT_MemSet, _TEXT - sxtb w8,w1 + uxtb w8,w1 sxtw x8,w8 orr x8,x8,x8, lsl #8 orr x8,x8,x8, lsl #0x10 @@ -121,11 +121,9 @@ LOCAL_LABEL(JIT_MemSet_0x60): cbnz x2,LOCAL_LABEL(JIT_MemSet_0x60) LOCAL_LABEL(JIT_MemSet_0x7c): cmp x2,#8 - bls LOCAL_LABEL(JIT_MemSet_0xb8) - mov x8,#-9 - add x8,x2,x8 - lsr x8,x8,#3 - add x11,x8,#1 + blo LOCAL_LABEL(JIT_MemSet_0xb8) + lsr x8,x2,#3 + mov x11,x8 mov x10,x0 add x8,x10,x11, lsl #3 LOCAL_LABEL(JIT_MemSet_0x9c): @@ -150,7 +148,7 @@ LOCAL_LABEL(JIT_MemSet_0xd0): strb w9,[x0] LOCAL_LABEL(JIT_MemSet_0xd8): ret lr -LEAF_END JIT_MemSet, _TEXT +LEAF_END_MARKED JIT_MemSet, _TEXT // See comments above for JIT_MemSet @@ -188,7 +186,7 @@ LEAF_END JIT_MemSet, _TEXT // } // } // -// while(count > 8) +// while(count >= 8) // { // *(uintptr_t*)dst = *(uintptr_t*)src; // dst = (uintptr_t*)dst + 1; @@ -257,11 +255,8 @@ LOCAL_LABEL(JIT_MemCpy_0x5c): cbnz x2,LOCAL_LABEL(JIT_MemCpy_0x5c) LOCAL_LABEL(JIT_MemCpy_0x80): cmp x2,#8 - bls LOCAL_LABEL(JIT_MemCpy_0xb4) - mov x8,#-9 - add x8,x2,x8 - lsr x8,x8,#3 - add x9,x8,#1 + blo LOCAL_LABEL(JIT_MemCpy_0xb4) + lsr x9,x2,#3 mov x8,#-8 madd x2,x9,x8,x2 LOCAL_LABEL(JIT_MemCpy_0xa0): @@ -288,4 +283,4 @@ LOCAL_LABEL(JIT_MemCpy_0xdc): strb w8,[x0] LOCAL_LABEL(JIT_MemCpy_0xe8): ret lr -LEAF_END JIT_MemCpy, _TEXT +LEAF_END_MARKED JIT_MemCpy, _TEXT |