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Erik van der Kouwe 2010-05-27 09:20:50 +00:00
parent fc7438181b
commit a31e9b0400
1 changed files with 7 additions and 1 deletions
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8
lib/csu/i386/crtso.S
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@ -23,7 +23,7 @@ begdata:
.bss
begbss:
.globl crtso, __penviron, __penvp
.globl crtso, __penviron, __penvp, __fpu_present
.globl __minix_datastart, __minix_mainjump, __minix_unmapzero
.extern _main, _exit
@ -61,6 +61,11 @@ crtso:
push %edx /* push argv */
push %eax /* push argc */
/* Test the EM bit of the MSW to determine if an FPU is present and */
/* set __fpu_present if one is found. */
smsw %ax
testb $0x4, %al /* EM bit in MSW */
sete __fpu_present /* True if not set */
jmp __minix_mainjump
.balign I386_PAGE_SIZE
@ -111,5 +116,6 @@ __penviron:
.bss
.lcomm __penvp, 4 /* Hidden environment vector */
.lcomm __fpu_present, 4 /* FPU present flag */
.extern endtext /* Force loading of end labels. */