Add register prefixes.
This commit is contained in:
thorpej
parent
e9e011443c
commit
c718a7c548
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@ -1,4 +1,4 @@
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/* $NetBSD: copy.s,v 1.35 1999/11/07 17:31:37 chs Exp $ */
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/* $NetBSD: copy.s,v 1.36 1999/11/10 00:13:59 thorpej Exp $ */
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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@ -100,8 +100,8 @@
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Lbadfc:
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PANIC("copy.s: bad sfc or dfc")
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bra Lbadfc
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#define CHECK_SFC movec sfc,d0; subql #FC_USERD,d0; bne Lbadfc
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#define CHECK_DFC movec dfc,d0; subql #FC_USERD,d0; bne Lbadfc
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#define CHECK_SFC movec %sfc,%d0; subql #FC_USERD,%d0; bne Lbadfc
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#define CHECK_DFC movec %dfc,%d0; subql #FC_USERD,%d0; bne Lbadfc
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#else /* DIAGNOSTIC */
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#define CHECK_SFC
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#define CHECK_DFC
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@ -120,57 +120,57 @@ Lbadfc:
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*/
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ENTRY(copyin)
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CHECK_SFC
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movl sp@(12),d0 | check count
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movl %sp@(12),%d0 | check count
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beq Lciret | == 0, don't do anything
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#ifdef MAPPEDCOPY
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cmpl _C_LABEL(mappedcopysize),d0 | size >= mappedcopysize
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cmpl _C_LABEL(mappedcopysize),%d0 | size >= mappedcopysize
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bcc _C_LABEL(mappedcopyin) | yes, go do it the new way
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#endif
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movl d2,sp@- | save scratch register
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movl _C_LABEL(curpcb),a0 | set fault handler
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movl #Lcifault,a0@(PCB_ONFAULT)
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movl sp@(8),a0 | src address
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movl sp@(12),a1 | dest address
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movl a0,d1
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btst #0,d1 | src address odd?
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movl %d2,%sp@- | save scratch register
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movl _C_LABEL(curpcb),%a0 | set fault handler
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movl #Lcifault,%a0@(PCB_ONFAULT)
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movl %sp@(8),%a0 | src address
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movl %sp@(12),%a1 | dest address
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movl %a0,%d1
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btst #0,%d1 | src address odd?
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beq Lcieven | no, skip alignment
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movsb a0@+,d2 | yes, copy a byte
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movb d2,a1@+
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subql #1,d0 | adjust count
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movsb %a0@+,%d2 | yes, copy a byte
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movb %d2,%a1@+
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subql #1,%d0 | adjust count
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beq Lcidone | count 0, all done
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Lcieven:
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movl a1,d1
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btst #0,d1 | dest address odd?
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movl %a1,%d1
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btst #0,%d1 | dest address odd?
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bne Lcibytes | yes, must copy bytes
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movl d0,d1 | OK, both even. Get count
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lsrl #2,d1 | and convert to longwords
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movl %d0,%d1 | OK, both even. Get count
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lsrl #2,%d1 | and convert to longwords
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beq Lcibytes | count 0, skip longword loop
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subql #1,d1 | predecrement for dbf
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subql #1,%d1 | predecrement for dbf
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Lcilloop:
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movsl a0@+,d2 | copy a longword
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movl d2,a1@+
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dbf d1,Lcilloop | decrement low word of count
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subil #0x10000,d1 | decrement high word of count
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movsl %a0@+,%d2 | copy a longword
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movl %d2,%a1@+
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dbf %d1,Lcilloop | decrement low word of count
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subil #0x10000,%d1 | decrement high word of count
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bcc Lcilloop
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andl #3,d0 | what remains
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andl #3,%d0 | what remains
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beq Lcidone | nothing, all done
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Lcibytes:
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subql #1,d0 | predecrement for dbf
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subql #1,%d0 | predecrement for dbf
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Lcibloop:
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movsb a0@+,d2 | copy a byte
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movb d2,a1@+
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dbf d0,Lcibloop | decrement low word of count
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subil #0x10000,d0 | decrement high word of count
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movsb %a0@+,%d2 | copy a byte
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movb %d2,%a1@+
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dbf %d0,Lcibloop | decrement low word of count
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subil #0x10000,%d0 | decrement high word of count
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bcc Lcibloop
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clrl d0 | no error
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clrl %d0 | no error
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Lcidone:
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movl _C_LABEL(curpcb),a0 | clear fault handler
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clrl a0@(PCB_ONFAULT)
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movl sp@+,d2 | restore scratch register
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movl _C_LABEL(curpcb),%a0 | clear fault handler
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clrl %a0@(PCB_ONFAULT)
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movl %sp@+,%d2 | restore scratch register
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Lciret:
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rts
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Lcifault:
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moveq #EFAULT,d0 | got a fault
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moveq #EFAULT,%d0 | got a fault
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bra Lcidone
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/*
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@ -186,57 +186,57 @@ Lcifault:
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*/
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ENTRY(copyout)
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CHECK_DFC
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movl sp@(12),d0 | check count
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movl %sp@(12),%d0 | check count
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beq Lcoret | == 0, don't do anything
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#ifdef MAPPEDCOPY
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cmpl _C_LABEL(mappedcopysize),d0 | size >= mappedcopysize
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cmpl _C_LABEL(mappedcopysize),%d0 | size >= mappedcopysize
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bcc _C_LABEL(mappedcopyout) | yes, go do it the new way
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#endif
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movl d2,sp@- | save scratch register
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movl _C_LABEL(curpcb),a0 | set fault handler
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movl #Lcofault,a0@(PCB_ONFAULT)
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movl sp@(8),a0 | src address
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movl sp@(12),a1 | dest address
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movl a0,d1
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btst #0,d1 | src address odd?
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movl %d2,%sp@- | save scratch register
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movl _C_LABEL(curpcb),%a0 | set fault handler
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movl #Lcofault,%a0@(PCB_ONFAULT)
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movl %sp@(8),%a0 | src address
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movl %sp@(12),%a1 | dest address
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movl %a0,%d1
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btst #0,%d1 | src address odd?
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beq Lcoeven | no, skip alignment
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movb a0@+,d2 | yes, copy a byte
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movsb d2,a1@+
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subql #1,d0 | adjust count
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movb %a0@+,%d2 | yes, copy a byte
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movsb %d2,%a1@+
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subql #1,%d0 | adjust count
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beq Lcodone | count 0, all done
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Lcoeven:
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movl a1,d1
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btst #0,d1 | dest address odd?
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movl %a1,%d1
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btst #0,%d1 | dest address odd?
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bne Lcobytes | yes, must copy bytes
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movl d0,d1 | OK, both even. Get count
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lsrl #2,d1 | and convert to longwords
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movl %d0,%d1 | OK, both even. Get count
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lsrl #2,%d1 | and convert to longwords
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beq Lcobytes | count 0, skip longword loop
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subql #1,d1 | predecrement for dbf
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subql #1,%d1 | predecrement for dbf
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Lcolloop:
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movl a0@+,d2 | copy a longword
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movsl d2,a1@+
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dbf d1,Lcolloop | decrement low word of count
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subil #0x10000,d1 | decrement high word of count
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movl %a0@+,%d2 | copy a longword
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movsl %d2,%a1@+
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dbf %d1,Lcolloop | decrement low word of count
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subil #0x10000,%d1 | decrement high word of count
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bcc Lcolloop
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andl #3,d0 | what remains
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andl #3,%d0 | what remains
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beq Lcodone | nothing, all done
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Lcobytes:
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subql #1,d0 | predecrement for dbf
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subql #1,%d0 | predecrement for dbf
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Lcobloop:
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movb a0@+,d2 | copy a byte
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movsb d2,a1@+
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dbf d0,Lcobloop | decrement low word of count
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subil #0x10000,d0 | decrement high word of count
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movb %a0@+,%d2 | copy a byte
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movsb %d2,%a1@+
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dbf %d0,Lcobloop | decrement low word of count
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subil #0x10000,%d0 | decrement high word of count
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bcc Lcobloop
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clrl d0 | no error
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clrl %d0 | no error
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Lcodone:
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movl _C_LABEL(curpcb),a0 | clear fault handler
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clrl a0@(PCB_ONFAULT)
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movl sp@+,d2 | restore scratch register
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movl _C_LABEL(curpcb),%a0 | clear fault handler
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clrl %a0@(PCB_ONFAULT)
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movl %sp@+,%d2 | restore scratch register
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Lcoret:
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rts
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Lcofault:
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moveq #EFAULT,d0
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moveq #EFAULT,%d0
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bra Lcodone
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/*
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@ -246,26 +246,26 @@ Lcofault:
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* string is too long, return ENAMETOOLONG; else return 0.
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*/
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ENTRY(copystr)
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movl sp@(4),a0 | a0 = fromaddr
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movl sp@(8),a1 | a1 = toaddr
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clrl d0
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movl sp@(12),d1 | count
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movl %sp@(4),%a0 | a0 = fromaddr
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movl %sp@(8),%a1 | a1 = toaddr
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clrl %d0
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movl %sp@(12),%d1 | count
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beq Lcstoolong | nothing to copy
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subql #1,d1 | predecrement for dbeq
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subql #1,%d1 | predecrement for dbeq
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Lcsloop:
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movb a0@+,a1@+ | copy a byte
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dbeq d1,Lcsloop | decrement low word of count
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movb %a0@+,%a1@+ | copy a byte
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dbeq %d1,Lcsloop | decrement low word of count
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beq Lcsdone | copied null, exit
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subil #0x10000,d1 | decrement high word of count
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subil #0x10000,%d1 | decrement high word of count
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bcc Lcsloop | more room, keep going
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Lcstoolong:
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moveq #ENAMETOOLONG,d0 | ran out of space
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moveq #ENAMETOOLONG,%d0 | ran out of space
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Lcsdone:
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tstl sp@(16) | length desired?
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tstl %sp@(16) | length desired?
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beq Lcsret
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subl sp@(4),a0 | yes, calculate length copied
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movl sp@(16),a1 | store at return location
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movl a0,a1@
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subl %sp@(4),%a0 | yes, calculate length copied
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movl %sp@(16),%a1 | store at return location
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movl %a0,%a1@
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Lcsret:
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rts
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@ -278,35 +278,35 @@ Lcsret:
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*/
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ENTRY(copyinstr)
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CHECK_SFC
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movl _C_LABEL(curpcb),a0 | set fault handler
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movl #Lcisfault,a0@(PCB_ONFAULT)
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movl sp@(4),a0 | a0 = fromaddr
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movl sp@(8),a1 | a1 = toaddr
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clrl d0
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movl sp@(12),d1 | count
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movl _C_LABEL(curpcb),%a0 | set fault handler
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movl #Lcisfault,%a0@(PCB_ONFAULT)
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movl %sp@(4),%a0 | a0 = fromaddr
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movl %sp@(8),%a1 | a1 = toaddr
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clrl %d0
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movl %sp@(12),%d1 | count
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beq Lcistoolong | nothing to copy
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subql #1,d1 | predecrement for dbeq
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subql #1,%d1 | predecrement for dbeq
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Lcisloop:
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movsb a0@+,d0 | copy a byte
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movb d0,a1@+
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dbeq d1,Lcisloop | decrement low word of count
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movsb %a0@+,%d0 | copy a byte
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movb %d0,%a1@+
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dbeq %d1,Lcisloop | decrement low word of count
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beq Lcisdone | copied null, exit
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subil #0x10000,d1 | decrement high word of count
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subil #0x10000,%d1 | decrement high word of count
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bcc Lcisloop | more room, keep going
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Lcistoolong:
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moveq #ENAMETOOLONG,d0 | ran out of space
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moveq #ENAMETOOLONG,%d0 | ran out of space
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Lcisdone:
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tstl sp@(16) | length desired?
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tstl %sp@(16) | length desired?
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beq Lcisexit
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subl sp@(4),a0 | yes, calculate length copied
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movl sp@(16),a1 | store at return location
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movl a0,a1@
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subl %sp@(4),%a0 | yes, calculate length copied
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movl %sp@(16),%a1 | store at return location
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movl %a0,%a1@
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Lcisexit:
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movl _C_LABEL(curpcb),a0 | clear fault handler
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clrl a0@(PCB_ONFAULT)
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movl _C_LABEL(curpcb),%a0 | clear fault handler
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clrl %a0@(PCB_ONFAULT)
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rts
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Lcisfault:
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moveq #EFAULT,d0
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moveq #EFAULT,%d0
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bra Lcisdone
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/*
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@ -318,35 +318,35 @@ Lcisfault:
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*/
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ENTRY(copyoutstr)
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CHECK_DFC
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movl _C_LABEL(curpcb),a0 | set fault handler
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movl #Lcosfault,a0@(PCB_ONFAULT)
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movl sp@(4),a0 | a0 = fromaddr
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movl sp@(8),a1 | a1 = toaddr
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clrl d0
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movl sp@(12),d1 | count
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movl _C_LABEL(curpcb),%a0 | set fault handler
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movl #Lcosfault,%a0@(PCB_ONFAULT)
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movl %sp@(4),%a0 | a0 = fromaddr
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movl %sp@(8),%a1 | a1 = toaddr
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clrl %d0
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movl %sp@(12),%d1 | count
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beq Lcostoolong | nothing to copy
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subql #1,d1 | predecrement for dbeq
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subql #1,%d1 | predecrement for dbeq
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Lcosloop:
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movb a0@+,d0 | copy a byte
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movsb d0,a1@+
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dbeq d1,Lcosloop | decrement low word of count
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movb %a0@+,%d0 | copy a byte
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movsb %d0,%a1@+
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dbeq %d1,Lcosloop | decrement low word of count
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beq Lcosdone | copied null, exit
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subil #0x10000,d1 | decrement high word of count
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subil #0x10000,%d1 | decrement high word of count
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bcc Lcosloop | more room, keep going
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Lcostoolong:
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moveq #ENAMETOOLONG,d0 | ran out of space
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moveq #ENAMETOOLONG,%d0 | ran out of space
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Lcosdone:
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tstl sp@(16) | length desired?
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tstl %sp@(16) | length desired?
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beq Lcosexit
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subl sp@(4),a0 | yes, calculate length copied
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movl sp@(16),a1 | store at return location
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movl a0,a1@
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subl %sp@(4),%a0 | yes, calculate length copied
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movl %sp@(16),%a1 | store at return location
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movl %a0,%a1@
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Lcosexit:
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movl _C_LABEL(curpcb),a0 | clear fault handler
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clrl a0@(PCB_ONFAULT)
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movl _C_LABEL(curpcb),%a0 | clear fault handler
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clrl %a0@(PCB_ONFAULT)
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rts
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Lcosfault:
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moveq #EFAULT,d0
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moveq #EFAULT,%d0
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bra Lcosdone
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/*
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@ -360,24 +360,24 @@ Lcosfault:
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* page fault.
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*/
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ENTRY(kcopy)
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link a6,#-4
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movl _C_LABEL(curpcb),a0 | set fault handler
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movl a0@(PCB_ONFAULT),a6@(-4) | save old handler first
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movl #Lkcfault,a0@(PCB_ONFAULT)
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movl a6@(16),sp@- | push len
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movl a6@(12),sp@- | push dst
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movl a6@(8),sp@- | push src
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link %a6,#-4
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movl _C_LABEL(curpcb),%a0 | set fault handler
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movl %a0@(PCB_ONFAULT),%a6@(-4) | save old handler first
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movl #Lkcfault,%a0@(PCB_ONFAULT)
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movl %a6@(16),%sp@- | push len
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movl %a6@(12),%sp@- | push dst
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movl %a6@(8),%sp@- | push src
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jbsr _C_LABEL(bcopy) | copy it
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addl #12,sp | pop args
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clrl d0 | success!
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addl #12,%sp | pop args
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clrl %d0 | success!
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Lkcdone:
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movl _C_LABEL(curpcb),a0 | restore fault handler
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movl a6@(-4),a0@(PCB_ONFAULT)
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unlk a6
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movl _C_LABEL(curpcb),%a0 | restore fault handler
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movl %a6@(-4),%a0@(PCB_ONFAULT)
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unlk %a6
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rts
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Lkcfault:
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addl #16,sp | pop args and return address
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moveq #EFAULT,d0 | indicate a fault
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addl #16,%sp | pop args and return address
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moveq #EFAULT,%d0 | indicate a fault
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bra Lkcdone
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/*
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@ -386,10 +386,10 @@ Lkcfault:
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*/
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ENTRY(fuword)
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CHECK_SFC
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movl sp@(4),a0 | address to read
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movl _C_LABEL(curpcb),a1 | set fault handler
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movl #Lferr,a1@(PCB_ONFAULT)
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movsl a0@,d0 | do read from user space
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movl %sp@(4),%a0 | address to read
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movl _C_LABEL(curpcb),%a1 | set fault handler
|
||||
movl #Lferr,%a1@(PCB_ONFAULT)
|
||||
movsl %a0@,%d0 | do read from user space
|
||||
bra Lfdone
|
||||
|
||||
/*
|
||||
|
|
@ -398,11 +398,11 @@ ENTRY(fuword)
|
|||
*/
|
||||
ENTRY(fusword)
|
||||
CHECK_SFC
|
||||
movl sp@(4),a0 | address to read
|
||||
movl _C_LABEL(curpcb),a1 | set fault handler
|
||||
movl #Lferr,a1@(PCB_ONFAULT)
|
||||
moveq #0,d0
|
||||
movsw a0@,d0 | do read from user space
|
||||
movl %sp@(4),%a0 | address to read
|
||||
movl _C_LABEL(curpcb),%a1 | set fault handler
|
||||
movl #Lferr,%a1@(PCB_ONFAULT)
|
||||
moveq #0,%d0
|
||||
movsw %a0@,%d0 | do read from user space
|
||||
bra Lfdone
|
||||
|
||||
/*
|
||||
|
|
@ -412,11 +412,11 @@ ENTRY(fusword)
|
|||
*/
|
||||
ENTRY(fuswintr)
|
||||
CHECK_SFC
|
||||
movl sp@(4),a0 | address to read
|
||||
movl _C_LABEL(curpcb),a1 | set fault handler
|
||||
movl #_C_LABEL(fubail),a1@(PCB_ONFAULT)
|
||||
moveq #0,d0
|
||||
movsw a0@,d0 | do read from user space
|
||||
movl %sp@(4),%a0 | address to read
|
||||
movl _C_LABEL(curpcb),%a1 | set fault handler
|
||||
movl #_C_LABEL(fubail),%a1@(PCB_ONFAULT)
|
||||
moveq #0,%d0
|
||||
movsw %a0@,%d0 | do read from user space
|
||||
bra Lfdone
|
||||
|
||||
/*
|
||||
|
|
@ -425,11 +425,11 @@ ENTRY(fuswintr)
|
|||
*/
|
||||
ENTRY(fubyte)
|
||||
CHECK_SFC
|
||||
movl sp@(4),a0 | address to read
|
||||
movl _C_LABEL(curpcb),a1 | set fault handler
|
||||
movl #Lferr,a1@(PCB_ONFAULT)
|
||||
moveq #0,d0
|
||||
movsb a0@,d0 | do read from user space
|
||||
movl %sp@(4),%a0 | address to read
|
||||
movl _C_LABEL(curpcb),%a1 | set fault handler
|
||||
movl #Lferr,%a1@(PCB_ONFAULT)
|
||||
moveq #0,%d0
|
||||
movsb %a0@,%d0 | do read from user space
|
||||
bra Lfdone
|
||||
|
||||
/*
|
||||
|
|
@ -442,9 +442,9 @@ ENTRY(fubyte)
|
|||
ENTRY(fubail)
|
||||
nop
|
||||
Lferr:
|
||||
moveq #-1,d0 | error indicator
|
||||
moveq #-1,%d0 | error indicator
|
||||
Lfdone:
|
||||
clrl a1@(PCB_ONFAULT) | clear fault handler
|
||||
clrl %a1@(PCB_ONFAULT) | clear fault handler
|
||||
rts
|
||||
|
||||
/*
|
||||
|
|
@ -453,12 +453,12 @@ Lfdone:
|
|||
*/
|
||||
ENTRY(suword)
|
||||
CHECK_DFC
|
||||
movl sp@(4),a0 | address to write
|
||||
movl sp@(8),d0 | value to put there
|
||||
movl _C_LABEL(curpcb),a1 | set fault handler
|
||||
movl #Lserr,a1@(PCB_ONFAULT)
|
||||
movsl d0,a0@ | do write to user space
|
||||
moveq #0,d0 | indicate no fault
|
||||
movl %sp@(4),%a0 | address to write
|
||||
movl %sp@(8),%d0 | value to put there
|
||||
movl _C_LABEL(curpcb),%a1 | set fault handler
|
||||
movl #Lserr,%a1@(PCB_ONFAULT)
|
||||
movsl %d0,%a0@ | do write to user space
|
||||
moveq #0,%d0 | indicate no fault
|
||||
bra Lsdone
|
||||
|
||||
/*
|
||||
|
|
@ -467,12 +467,12 @@ ENTRY(suword)
|
|||
*/
|
||||
ENTRY(susword)
|
||||
CHECK_DFC
|
||||
movl sp@(4),a0 | address to write
|
||||
movw sp@(10),d0 | value to put there
|
||||
movl _C_LABEL(curpcb),a1 | set fault handler
|
||||
movl #Lserr,a1@(PCB_ONFAULT)
|
||||
movsw d0,a0@ | do write to user space
|
||||
moveq #0,d0 | indicate no fault
|
||||
movl %sp@(4),%a0 | address to write
|
||||
movw %sp@(10),%d0 | value to put there
|
||||
movl _C_LABEL(curpcb),%a1 | set fault handler
|
||||
movl #Lserr,%a1@(PCB_ONFAULT)
|
||||
movsw %d0,%a0@ | do write to user space
|
||||
moveq #0,%d0 | indicate no fault
|
||||
bra Lsdone
|
||||
|
||||
/*
|
||||
|
|
@ -482,12 +482,12 @@ ENTRY(susword)
|
|||
*/
|
||||
ENTRY(suswintr)
|
||||
CHECK_DFC
|
||||
movl sp@(4),a0 | address to write
|
||||
movw sp@(10),d0 | value to put there
|
||||
movl _C_LABEL(curpcb),a1 | set fault handler
|
||||
movl #_C_LABEL(subail),a1@(PCB_ONFAULT)
|
||||
movsw d0,a0@ | do write to user space
|
||||
moveq #0,d0 | indicate no fault
|
||||
movl %sp@(4),%a0 | address to write
|
||||
movw %sp@(10),%d0 | value to put there
|
||||
movl _C_LABEL(curpcb),%a1 | set fault handler
|
||||
movl #_C_LABEL(subail),%a1@(PCB_ONFAULT)
|
||||
movsw %d0,%a0@ | do write to user space
|
||||
moveq #0,%d0 | indicate no fault
|
||||
bra Lsdone
|
||||
|
||||
/*
|
||||
|
|
@ -496,12 +496,12 @@ ENTRY(suswintr)
|
|||
*/
|
||||
ENTRY(subyte)
|
||||
CHECK_DFC
|
||||
movl sp@(4),a0 | address to write
|
||||
movb sp@(11),d0 | value to put there
|
||||
movl _C_LABEL(curpcb),a1 | set fault handler
|
||||
movl #Lserr,a1@(PCB_ONFAULT)
|
||||
movsb d0,a0@ | do write to user space
|
||||
moveq #0,d0 | indicate no fault
|
||||
movl %sp@(4),%a0 | address to write
|
||||
movb %sp@(11),%d0 | value to put there
|
||||
movl _C_LABEL(curpcb),%a1 | set fault handler
|
||||
movl #Lserr,%a1@(PCB_ONFAULT)
|
||||
movsb %d0,%a0@ | do write to user space
|
||||
moveq #0,%d0 | indicate no fault
|
||||
bra Lsdone
|
||||
|
||||
/*
|
||||
|
|
@ -514,7 +514,7 @@ ENTRY(subyte)
|
|||
ENTRY(subail)
|
||||
nop
|
||||
Lserr:
|
||||
moveq #-1,d0 | error indicator
|
||||
moveq #-1,%d0 | error indicator
|
||||
Lsdone:
|
||||
clrl a1@(PCB_ONFAULT) | clear fault handler
|
||||
clrl %a1@(PCB_ONFAULT) | clear fault handler
|
||||
rts
|
||||
|
|
|
|||
Loading…
Reference in New Issue