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leave SIGFPE alone

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This commit is contained in:
ceriel 1990-12-03 14:14:48 +00:00
parent 36861e70ac
commit 8a81dbe6fb
3 changed files with 3 additions and 122 deletions
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34
mach/vax4/libbsd4_1a/head_em.s
View file

@ -28,50 +28,18 @@
pushl r0 pushl r0
pushl r2 pushl r2
pushl r1 pushl r1
movl $Im1,ap
chmk (ap)+ ! catch floating point exception
calls $3,_m_a_i_n calls $3,_m_a_i_n
movl $Im2,ap movl $Im2,ap
movl r0,6(ap) movl r0,6(ap)
chmk (ap)+ chmk (ap)+
halt halt
.align 1
Isig8:
.data2 0x0000
pushl 8(ap)
movl (sp)+,ap
pushl Itab [ap]
jsb .trp
movl $Im1,ap
chmk (ap)+
ret
.sect .rom
Im1:
.data2 48
.data4 2
.data4 8
.data4 Isig8
Itab:
.data4 0
.data4 EIOVFL
.data4 EIDIVZ
.data4 EFOVFL
.data4 EFDIVZ
.data4 EFUNFL
.data4 EILLINS
.data4 EARRAY
.data4 EFOVFL
.data4 EFDIVZ
.data4 EFUNFL
.sect .data .sect .data
Im2: Im2:
.data2 1 .data2 1
.data4 1 .data4 1
.data4 0 .data4 0
.data2 0
.reghp: .reghp:
.data4 __end .data4 __end
.limhp: .limhp:

57
mach/vax4/libbsd4_2/head_em.s
View file

@ -28,61 +28,18 @@
pushl r0 pushl r0
pushl r2 pushl r2
pushl r1 pushl r1
movl $Im1,ap
chmk (ap)+ ! catch floating point exception
calls $3,_m_a_i_n calls $3,_m_a_i_n
movl $Im2,ap movl $Im2,ap
movl r0,6(ap) movl r0,6(ap)
chmk (ap)+ chmk (ap)+
halt halt
.align 1
Isig8:
.data2 0x0000
pushl 8(ap)
movl $Im3,ap
chmk (ap)+ ! restore default handler
movl $Im5,ap
chmk (ap)+ ! get current signal mask
bicl3 $0x80,r0,Im4+6 ! and remove the 8th bit
movl $Im4,ap
chmk (ap)+ ! and
movl (sp)+,ap
pushl Itab [ap]
jsb .trp
movl $Im1,ap
chmk (ap)+
ret
.sect .data .sect .data
Im1:
.data2 SYS_sigvec
.data4 3
.data4 8
.data4 Im1a
.data4 0
Im3:
.data2 SYS_sigvec
.data4 3
.data4 8
.data4 0
.data4 0
Im4:
.data2 SYS_sigsetmask
.data4 1
.data4 0
Im5:
.data2 SYS_sigblock
.data4 1
.data4 0
Im1a:
.data4 Isig8
.data4 0
.data4 0
Im2: Im2:
.data2 1 .data2 1
.data4 1 .data4 1
.data4 0 .data4 0
.data2 0
.reghp: .reghp:
.data4 __end .data4 __end
.limhp: .limhp:
@ -93,15 +50,3 @@ hol0:
.space 4 .space 4
.trpim: .trpim:
.data4 0 .data4 0
Itab:
.data4 0
.data4 EIOVFL
.data4 EIDIVZ
.data4 EFOVFL
.data4 EFDIVZ
.data4 EFUNFL
.data4 EILLINS
.data4 EARRAY
.data4 EFOVFL
.data4 EFDIVZ
.data4 EFUNFL

34
mach/vax4/libsysV_2/head_em.s
View file

@ -28,50 +28,18 @@
pushl r0 pushl r0
pushl r2 pushl r2
pushl r1 pushl r1
movl $Im1,ap
chmk (ap)+ ! catch floating point exception
calls $3,_m_a_i_n calls $3,_m_a_i_n
movl $Im2,ap movl $Im2,ap
movl r0,6(ap) movl r0,6(ap)
chmk (ap)+ chmk (ap)+
halt halt
.align 1
Isig8:
.data2 0x0000
pushl 8(ap)
movl (sp)+,ap
pushl Itab [ap]
jsb .trp
movl $Im1,ap
chmk (ap)+
ret
.sect .rom
Im1:
.data2 48
.data4 2
.data4 8
.data4 Isig8
Itab:
.data4 0
.data4 EIOVFL
.data4 EIDIVZ
.data4 EFOVFL
.data4 EFDIVZ
.data4 EFUNFL
.data4 EILLINS
.data4 EARRAY
.data4 EFOVFL
.data4 EFDIVZ
.data4 EFUNFL
.sect .data .sect .data
Im2: Im2:
.data2 1 .data2 1
.data4 1 .data4 1
.data4 0 .data4 0
.data2 0
.reghp: .reghp:
.data4 __end .data4 __end
.limhp: .limhp: