Changeset 103014 in vbox for trunk/include

Timestamp:

Jan 24, 2024 12:58:12 AM (16 months ago)

Author:

vboxsync

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

161248

Message:

iprt/asm-mem.h: Eliminated the ASMMemZeroPage function, replaced the three actual uses in PGMPool with RT_BZERO/PAGE_SIZE.

Location:

trunk/include/iprt

Files:

• asm-mem-watcom-x86-16.h (modified) (1 diff)
• asm-mem-watcom-x86-32.h (modified) (1 diff)
• asm-mem.h (modified) (1 diff)
• mangling.h (modified) (1 diff)

trunk/include/iprt/asm-mem-watcom-x86-16.h

@@ -52 +52 @@
  *       the watcom header at both the top and the bottom of asm.h file.
  */
-
-#undef      ASMMemZeroPage
-#ifdef IPRT_ASM_WATCOM_X86_16_WITH_PRAGMAS
-# if defined(__SW_0) || defined(__SW_1) || defined(__SW_2)
-#  pragma aux ASMMemZeroPage = \
-    "mov cx, 2048" \
-    "xor ax, ax" \
-    "rep stosw"  \
-    parm [es di] \
-    modify exact [ax cx di];
-# else
-#  pragma aux ASMMemZeroPage = \
-    "mov ecx, 1024" \
-    "xor eax, eax" \
-    "rep stosd"  \
-    parm [es di] \
-    modify exact [ax cx di];
-# endif
-#endif
 
 #undef      ASMMemZero32

trunk/include/iprt/asm-mem-watcom-x86-32.h

@@ -53 +53 @@
  */
 
-#undef      ASMMemZeroPage
-#ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS
-#pragma aux ASMMemZeroPage = \
-    "mov ecx, 1024" \
-    "xor eax, eax" \
-    "rep stosd"  \
-    parm [edi] \
-    modify exact [eax ecx edi];
-#endif
-
 #undef      ASMMemZero32
 #ifdef IPRT_ASM_WATCOM_X86_32_WITH_PRAGMAS

trunk/include/iprt/asm-mem.h

@@ -101 +101 @@
 # endif
 #endif
-
-
-#ifdef RT_ASM_PAGE_SIZE
-/**
- * Zeros a 4K memory page.
- *
- * @param   pv  Pointer to the memory block. This must be page aligned.
- */
-# if (RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN) || (!defined(RT_ARCH_AMD64) && !defined(RT_ARCH_X86))
-RT_ASM_DECL_PRAGMA_WATCOM(void) ASMMemZeroPage(volatile void RT_FAR *pv) RT_NOTHROW_PROTO;
-#  else
-DECLINLINE(void) ASMMemZeroPage(volatile void RT_FAR *pv) RT_NOTHROW_DEF
-{
-#   if RT_INLINE_ASM_USES_INTRIN
-#    ifdef RT_ARCH_AMD64
-    __stosq((unsigned __int64 *)pv, 0, RT_ASM_PAGE_SIZE / 8);
-#    else
-    __stosd((unsigned long *)pv, 0, RT_ASM_PAGE_SIZE / 4);
-#    endif
-
-#   elif RT_INLINE_ASM_GNU_STYLE
-    RTCCUINTREG uDummy;
-#    ifdef RT_ARCH_AMD64
-    __asm__ __volatile__("rep stosq"
-                         : "=D" (pv),
-                           "=c" (uDummy)
-                         : "0" (pv),
-                           "c" (RT_ASM_PAGE_SIZE >> 3),
-                           "a" (0)
-                         : "memory");
-#    else
-    __asm__ __volatile__("rep stosl"
-                         : "=D" (pv),
-                           "=c" (uDummy)
-                         : "0" (pv),
-                           "c" (RT_ASM_PAGE_SIZE >> 2),
-                           "a" (0)
-                         : "memory");
-#    endif
-#   else
-    __asm
-    {
-#    ifdef RT_ARCH_AMD64
-        xor     rax, rax
-        mov     ecx, 0200h
-        mov     rdi, [pv]
-        rep     stosq
-#    else
-        xor     eax, eax
-        mov     ecx, 0400h
-        mov     edi, [pv]
-        rep     stosd
-#    endif
-    }
-#   endif
-}
-# endif
-#endif /* RT_ASM_PAGE_SIZE */
 
 

trunk/include/iprt/mangling.h

@@ -291 +291 @@
 # define ASMMemZero32                                   RT_MANGLER(ASMMemZero32)
 # define ASMMemZero32_EndProc                           RT_MANGLER(ASMMemZero32_EndProc)
-# define ASMMemZeroPage                                 RT_MANGLER(ASMMemZeroPage)
-# define ASMMemZeroPage_EndProc                         RT_MANGLER(ASMMemZeroPage_EndProc)
 # define ASMMultU64ByU32DivByU32                        RT_MANGLER(ASMMultU64ByU32DivByU32)
 # define ASMMultU64ByU32DivByU32_EndProc                RT_MANGLER(ASMMultU64ByU32DivByU32_EndProc)