lrintl.asm

Timestamp:

Aug 15, 2022 10:48:50 AM (3 years ago)

Author:

vboxsync

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

153026

Message:

IPRT/nocrt: lrint* returned the wrong sized long on 64-bit windows. Adopted llrint* and lring* to SEH64. bugref:10261

File:

trunk/src/VBox/Runtime/common/math/lrintl.asm

-              r96014
+              r96215
+;
+%define RT_ASM_WITH_SEH64
 %include "iprt/asmdefs.mac"
 BEGINCODE
 ;;
 ; Round rd to the nearest integer value, rounding according to the current rounding direction.
 ; @returns 32-bit: eax  64-bit: rax
+; Round lrd to the nearest integer value, rounding according to the current rounding direction.
+; @returns 32-bit: eax  64-bit: rax (non-windows) or eax (windows)
 ; @param    lrd     [rbp + xCB*2]
 RT_NOCRT_BEGINPROC lrintl
+    push    xBP
+    mov     xBP, xSP
+    sub     xSP, 10h
+        push    xBP
+        SEH64_PUSH_xBP
+        mov     xBP, xSP
+        SEH64_SET_FRAME_xBP 0
+        sub     xSP, 10h
+        SEH64_ALLOCATE_STACK 10h
+        SEH64_END_PROLOGUE
     fld     tword [xBP + xCB*2]
+        fld     tword [xBP + xCB*2]
 %ifdef RT_ARCH_AMD64
+    fistp   qword [xSP]
+    fwait
+    mov     rax, [xSP]
+ %ifdef RT_OS_WINDOWS
+        fistp   dword [xSP]
+        fwait
+        mov     eax, [xSP]
+ %else
+        fistp   qword [xSP]
+        fwait
+        mov     rax, [xSP]
+ %endif
 %else
     fistp   dword [xSP]
     fwait
     mov     eax, [xSP]
+        fistp   dword [xSP]
+        fwait
+        mov     eax, [xSP]
 %endif
     leave
     ret
+        leave
+        ret
 ENDPROC   RT_NOCRT(lrintl)

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