Changeset 52443 in vbox for trunk/src/VBox

Timestamp:

Aug 21, 2014 4:16:19 PM (11 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

95651

Message:

Runtime: added ASMMultU32ByU32DivByU32() and fixed early clobber operands in ASMMultU64ByU32DivByU32

Location:

trunk/src/VBox/Runtime

Files:

• Makefile.kmk (modified) (2 diffs)
• common/asm/ASMMultU32ByU32DivByU32.asm (added)
• testcase/tstRTInlineAsm.cpp (modified) (1 diff)

trunk/src/VBox/Runtime/Makefile.kmk

@@ -181 +181 @@
         win/amd64/ASMGetDR7.asm \
         common/asm/ASMAtomicCmpXchgU8.asm \
+        common/asm/ASMMultU32ByU32DivByU32.asm \
         common/asm/ASMMultU64ByU32DivByU32.asm \
         common/asm/ASMCpuId_Idx_ECX.asm \
@@ -197 +198 @@
 RuntimeWin32ASM_SOURCES = \
         common/asm/ASMAtomicCmpXchgU8.asm \
+        common/asm/ASMMultU32ByU32DivByU32.asm \
         common/asm/ASMMultU64ByU32DivByU32.asm \
         common/asm/ASMCpuId_Idx_ECX.asm \

trunk/src/VBox/Runtime/testcase/tstRTInlineAsm.cpp

@@ -1434 +1434 @@
     uint32_t u32 = ASMDivU64ByU32RetU32(UINT64_C(0x0800000000000000), UINT32_C(0x10000000));
     CHECKVAL(u32, UINT32_C(0x80000000), "%#010RX32");
+
+#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86)
+    u32 = ASMMultU32ByU32DivByU32(UINT32_C(0x00000001), UINT32_C(0x00000001), UINT32_C(0x00000001));
+    CHECKVAL(u32, UINT32_C(0x00000001), "%#018RX32");
+    u32 = ASMMultU32ByU32DivByU32(UINT32_C(0x10000000), UINT32_C(0x80000000), UINT32_C(0x20000000));
+    CHECKVAL(u32, UINT32_C(0x40000000), "%#018RX32");
+    u32 = ASMMultU32ByU32DivByU32(UINT32_C(0x76543210), UINT32_C(0xffffffff), UINT32_C(0xffffffff));
+    CHECKVAL(u32, UINT32_C(0x76543210), "%#018RX32");
+    u32 = ASMMultU32ByU32DivByU32(UINT32_C(0xffffffff), UINT32_C(0xffffffff), UINT32_C(0xffffffff));
+    CHECKVAL(u32, UINT32_C(0xffffffff), "%#018RX32");
+    u32 = ASMMultU32ByU32DivByU32(UINT32_C(0xffffffff), UINT32_C(0xfffffff0), UINT32_C(0xffffffff));
+    CHECKVAL(u32, UINT32_C(0xfffffff0), "%#018RX32");
+    u32 = ASMMultU32ByU32DivByU32(UINT32_C(0x10359583), UINT32_C(0x58734981), UINT32_C(0xf8694045));
+    CHECKVAL(u32, UINT32_C(0x05c584ce), "%#018RX32");
+    u32 = ASMMultU32ByU32DivByU32(UINT32_C(0x10359583), UINT32_C(0xf8694045), UINT32_C(0x58734981));
+    CHECKVAL(u32, UINT32_C(0x2d860795), "%#018RX32");
+#endif
 
 #if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86)