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This commit is contained in:
ceriel 1989-01-19 16:43:32 +00:00
parent b45706ce7a
commit c951295521
51 changed files with 1155 additions and 0 deletions
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5
mach/i386/libem/.distr Normal file
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LIST
Makefile
compmodule
end.s
libem_s.a

47
mach/i386/libem/LIST Normal file
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libem_s.a
adi.s
and.s
blm.s
cii.s
cms.s
com.s
csa4.s
csb4.s
cuu.s
dup.s
dvi.s
dvu.s
error.s
exg.s
fakfp.s
fat.s
gto.s
iaar.s
ilar.s
inn.s
ior.s
isar.s
lar4.s
loi.s
mli.s
mon.s
ngi.s
nop.s
print.s
rck.s
return.s
rmi.s
rmu.s
rol.s
ror.s
sar4.s
sbi.s
set.s
sli.s
sri.s
sti.s
stop.s
strhp.s
trp.s
unknown.s
xor.s

30
mach/i386/libem/Makefile Normal file
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# $Header$
MACH=i386
all: libem_o.a end.o
install: all
../../install libem_o.a tail_em
../../install end.o end_em
cmp: all
-../../compare libem_o.a tail_em
-../../compare end.o end_em
end.o: end.s
$(MACH) -I../../../h -O -c end.s
libem_o.a: libem_s.a
ASAR=aal ; export ASAR ;\
march . libem_o.a
clean:
rm -f *.o libem_o.a
opr :
make pr | opr
pr:
@arch pv libem_s.a | pr -h `pwd`/libem_s.a
@pr `pwd`/end.s

18
mach/i386/libem/adi.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.define .adi
! #bytes in ecx , top of stack in eax
.sect .text
.adi:
pop ebx ! return address
cmp ecx,4
jne 9f
pop ecx
add eax,ecx
jmp ebx
9:
.extern EODDZ
.extern .trp
mov eax,EODDZ
push ebx
jmp .trp

20
mach/i386/libem/and.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.define .and
! #bytes in ecx
! save edi; it might be a register variable
.sect .text
.and:
pop ebx ! return address
mov edx,edi
mov edi,esp
add edi,ecx
sar ecx,2
1:
pop eax
and eax,(edi)
stos
loop 1b
mov edi,edx
jmp ebx

15
mach/i386/libem/blm.s Normal file
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.sect .text
.define .blm
! ecx: count in words
.blm:
mov ebx,esp
mov eax,esi
mov edx,edi
mov edi,4(ebx)
mov esi,8(ebx)
rep movs
mov esi,eax
mov edi,edx
ret 8

33
mach/i386/libem/cii.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.define .cii
.sect .text
.cii:
pop ebx ! return address
! pop ecx, dest. size
! pop edx, src. size
! eax is source
cmp edx,1
jne 2f
o16 cbw ! needs operand size toggle to convert
! from one to two bytes.
cwde
mov edx,4
jmp 1f
2:
cmp edx,2
jne 1f
cwde ! convert from 2 to 4 bytes
mov edx,4
1:
cmp edx,ecx
jne 9f
cmp edx,4
jne 9f
jmp ebx
9:
.extern EILLINS
.extern .fat
mov eax,EILLINS
push eax
jmp .fat

23
mach/i386/libem/cms.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.define .cms
! #bytes in ecx
.sect .text
.cms:
pop ebx ! return address
mov edx,esp
push esi
push edi
mov esi,edx
add edx,ecx
mov edi,edx
add edx,ecx
sar ecx,2
repe cmps
je 1f
inc ecx
1:
pop edi
pop esi
mov esp,edx
jmp ebx

14
mach/i386/libem/com.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.define .com
! #bytes in ecx
.sect .text
.com:
mov ebx,esp
add ebx,4
sar ecx,2
1:
not (ebx)
add ebx,4
loop 1b
ret

4
mach/i386/libem/compmodule Executable file
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if i386 -c $1 1>&2
then echo `basename $1 $2`.o
else exit 1
fi

27
mach/i386/libem/csa4.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.define .csa4
.sect .text
.csa4:
! ebx, descriptor address
! eax, index
mov edx,(ebx) ! default
sub eax,4(ebx)
cmp eax,8(ebx)
ja 1f
sal eax,2
add ebx,eax
mov ebx,12(ebx)
test ebx,ebx
jnz 2f
1:
mov ebx,edx
test ebx,ebx
jnz 2f
.extern ECASE
.extern .fat
mov eax,ECASE
push eax
jmp .fat
2:
jmp ebx

29
mach/i386/libem/csb4.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.define .csb4
.sect .text
.csb4:
!ebx, descriptor address
!eax, index
mov edx,(ebx)
mov ecx,4(ebx)
1:
add ebx,8
dec ecx
jl 4f
cmp eax,(ebx)
jne 1b
mov ebx,4(ebx)
2:
test ebx,ebx
jnz 3f
.extern ECASE
.extern .fat
mov eax,ECASE
push eax
jmp .fat
3:
jmp ebx
4:
mov ebx,edx
jmp 2b

22
mach/i386/libem/cuu.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.define .ciu
.define .cui
.define .cuu
.sect .text
.ciu:
.cui:
.cuu:
pop ebx ! return address
! pop ecx, dest. size
! pop edx, source size
! eax is source
cmp edx,ecx
jne 8f
jmp ebx
8:
.extern EILLINS
.extern .fat
mov eax,EILLINS
push eax
jmp .fat

17
mach/i386/libem/dup.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.define .dup
! #bytes in ecx
.sect .text
.dup:
pop ebx ! return address
mov eax,esi
mov edx,edi
mov esi,esp
sub esp,ecx
mov edi,esp
sar ecx,2
rep movs
mov esi,eax
mov edi,edx
jmp ebx

21
mach/i386/libem/dvi.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.define .dvi
! #bytes in eax
.sect .text
.dvi:
pop ebx ! return address
cmp eax,4
jne 1f
pop eax
cwd
pop ecx
idiv ecx
push eax
jmp ebx
1:
.extern EODDZ
.extern .trp
mov eax,EODDZ
push ebx
jmp .trp

21
mach/i386/libem/dvu.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.define .dvu
! #bytes in eax
.sect .text
.dvu:
pop ebx ! return address
cmp eax,4
jne 1f
pop eax
xor edx,edx
pop ecx
div ecx
push eax
jmp ebx
1:
.extern EODDZ
.extern .trp
mov eax,EODDZ
push ebx
jmp .trp

17
mach/i386/libem/end.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.define endtext,enddata,endbss
.define _end,_etext,_edata
! $Header$
.sect .text
endtext:
_etext:
.align 4
.sect .data
enddata:
_edata:
.align 4
.sect .endsect
_end:
endbss:
.align 4

42
mach/i386/libem/error.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.define .error
.define .Xtrp
! eax is trap number
! all registers must be saved
! because return is possible
! May only be called with error no's <16
.sect .text
.error:
push ebp
push esi
push edi
push edx
push ecx
push ebx
push eax
mov ecx,eax
mov ebx,1
sal ebx,cl
.extern .ignmask
.extern .trp
test ebx,(.ignmask)
jne 2f
call .trp
2:
pop eax
pop ebx
pop ecx
pop edx
pop edi
pop esi
pop ebp
ret
.Xtrp:
cmp eax,16
jge 1f
call .error
ret
1:
jmp .trp

20
mach/i386/libem/exg.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.define .exg
! #bytes in ecx
.sect .text
.exg:
push edi
mov esp,edi
add edi,8
mov ebx,edi
add ebx,ecx
sar ecx,2
1:
mov eax,(ebx)
xchg eax,(edi)
mov (ebx),eax
loop 1b
2:
pop edi
ret

38
mach/i386/libem/fakfp.s Normal file
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.define .adf4, .adf8, .sbf4, .sbf8, .mlf4, .mlf8, .dvf4, .dvf8
.define .ngf4, .ngf8, .fif4, .fif8, .fef4, .fef8
.define .cif4, .cif8, .cuf4, .cuf8, .cfi, .cfu, .cff4, .cff8
.define .cmf4, .cmf8
.sect .text
.sect .rom
.sect .data
.sect .bss
! $Header$
.sect .text
.adf4:
.adf8:
.sbf4:
.sbf8:
.mlf4:
.mlf8:
.dvf4:
.dvf8:
.ngf4:
.ngf8:
.fif4:
.fif8:
.fef4:
.fef8:
.cif4:
.cif8:
.cuf4:
.cuf8:
.cfi:
.cfu:
.cff4:
.cff8:
.cmf4:
.cmf8:
mov eax,18 ! illegal instruction EILLINS
jmp .trp

10
mach/i386/libem/fat.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .fat
.fat:
.extern .trp
.extern .stop
call .trp
call .stop
! no return

8
mach/i386/libem/gto.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .gto
.gto:
mov ebp,8(ebx)
mov esp,4(ebx)
jmp (ebx)

19
mach/i386/libem/iaar.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .iaar
.iaar:
pop ecx
pop edx
cmp edx,4
.extern .unknown
jne .unknown
pop ebx ! descriptor address
pop eax ! index
pop edx ! array base
sub eax,(ebx)
mul 8(ebx)
mov ebx,edx
add ebx,eax
push ecx
ret

15
mach/i386/libem/ilar.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .ilar
.ilar:
pop ecx
pop edx
.extern .unknown
cmp edx,4
jne .unknown
pop ebx ! descriptor address
pop eax ! index
push ecx
.extern .lar4
jmp .lar4

32
mach/i386/libem/inn.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .inn
! #bytes in ecx
! bit # in eax
.inn:
xor edx,edx
mov ebx,8
div ebx
mov ebx,esp
add ebx,4
add ebx,eax
cmp eax,ecx
jae 1f
movb al,(ebx)
mov ebx,edx
testb al,bits(ebx)
jz 1f
mov eax,1
jmp 2f
1:
xor eax,eax
2:
pop ebx
add esp,ecx
! eax is result
jmp ebx
.sect .rom
bits:
.data1 1,2,4,8,16,32,64,128

18
mach/i386/libem/ior.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .ior
! #bytes in ecx
.ior:
pop ebx ! return address
mov edx,edi
mov edi,esp
add edi,ecx
sar ecx,1
1:
pop eax
or eax,(edi)
stos
loop 1b
mov edi,edx
jmp ebx

15
mach/i386/libem/isar.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .isar
.isar:
pop ecx
pop eax
cmp eax,4
.extern .unknown
jne .unknown
pop ebx ! descriptor address
pop eax ! index
push ecx
.extern .sar4
jmp .sar4

40
mach/i386/libem/lar4.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .lar4
.lar4:
! ebx, descriptor address
! eax, index
pop ecx
pop edx ! base address
push ecx
sub eax,(ebx)
mov ecx,8(ebx)
imul ecx
add edx,eax
sar ecx,1
jnb 1f
xor eax,eax
movb al,(edx)
pop ebx
push eax
jmp ebx
1:
sar ecx,1
jnb 1f
xor eax,eax
o16 mov ax,(edx)
pop ebx
push eax
jmp ebx
1:
mov edx,esi ! saved esi
mov eax,8(ebx)
pop ebx ! return address
sub esp,eax
mov eax,edi ! save edi
mov edi,esp
rep movs
mov edi,eax
mov esi,edx
jmp ebx

44
mach/i386/libem/loi.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .loi
.define .los
! #bytes in ecx
! address in ebx
! save esi/edi. they might be register variables
.los:
pop edx
mov eax,ecx
sar ecx,1
jnb 1f
xor eax,eax
movb al,(edx)
push eax
jmp edx
1:
sar ecx,1
jnb 1f
xor eax,eax
o16 mov ax,(edx)
push eax
jmp edx
1:
mov ebx,edx
mov edx,esi
sub esp,eax
jmp 1f
.loi:
! only called with size >= 4
mov edx,esi
mov esi,ebx
pop ebx
sub esp,ecx
sar ecx,2
1:
mov eax,edi
mov edi,esp
rep movs
mov esi,edx
mov edi,eax
jmp ebx

20
mach/i386/libem/mli.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .mli
! #bytes in eax
.mli:
pop ebx ! return address
cmp eax,4
jne 1f
pop eax
pop ecx
mul ecx
push eax
jmp ebx
1:
.extern EODDZ
.extern .trp
mov eax,EODDZ
push ebx
jmp .trp

7
mach/i386/libem/mon.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .mon
.mon:
.extern .stop
call .stop

19
mach/i386/libem/ngi.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .ngi
! #bytes in eax
.ngi:
pop ebx ! return address
cmp eax,4
jne 1f
pop ecx
neg ecx
push ecx
jmp ebx
1:
.extern EODDZ
.extern .trp
mov eax,EODDZ
push ebx
jmp .trp

24
mach/i386/libem/nop.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .nop
.extern printd, printc, hol0
SIO_S = 0xDA
SIO_D = 0xD8
RXRDY = 0x02
.nop:
mov eax,(hol0)
call printd
! movb al,' '
! call printc
! mov eax,esp
! call printd
!1:
! inb SIO_S
! andb al,RXRDY
! jz 1b
! inb SIO_D
! call printc
movb al,'\n'
jmp printc

47
mach/i386/libem/print.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define printc,printd,prints
! argument in eax
! uses ebx
prints:
xchg eax,ebx
1:
movb al,(ebx)
inc ebx
testb al,al
jz 2f
call printc
jmp 1b
2:
ret
! argument in eax
! uses ecx and edx
printd:
xor edx,edx
mov ecx,10
div ecx
test eax,eax
jz 1f
push edx
call printd
pop edx
1:
xchg eax,edx
addb al,'0'
! argument in eax
printc:
push eax
mov ebx,esp
mov eax,1
push eax
push ebx
push eax
call _write
pop ebx
pop ebx
pop ebx
pop ebx
ret

20
mach/i386/libem/rck.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .rck
! descriptor address in ebx
! value in eax, must be left there
.rck:
cmp eax,(ebx)
jl 2f
cmp eax,4(ebx)
jg 2f
ret
2:
push eax
.extern ERANGE
.extern .error
mov eax,ERANGE
call .error
pop eax
ret

17
mach/i386/libem/return.s Normal file
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.define .sdret, .dsret, .sret, .dret, .cret
.sect .text
.dsret:
pop edi
.sret:
pop esi
.cret:
mov esp,ebp
pop ebp
ret
.sdret:
pop esi
.dret:
pop edi
jmp .cret

21
mach/i386/libem/rmi.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .rmi
! #bytes in eax
.rmi:
pop ebx ! return address
cmp eax,4
jne 1f
pop eax
cwd
pop ecx
idiv ecx
push edx
jmp ebx
1:
.extern EODDZ
.extern .trp
mov eax,EODDZ
push ebx
jmp .trp

21
mach/i386/libem/rmu.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .rmu
! #bytes in eax
.rmu:
pop ebx ! return address
cmp eax,4
jne 1f
pop eax
xor edx,edx
pop ecx
idiv ecx
push edx
jmp ebx
1:
.extern EODDZ
.extern .trp
mov eax,EODDZ
push ebx
jmp .trp

20
mach/i386/libem/rol.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .rol
! #bytes in eax
.rol:
pop edx ! return address
cmp eax,4
jne 1f
pop eax
pop ecx
rol eax,cl
push eax
jmp edx
1:
.extern EODDZ
.extern .trp
mov eax,EODDZ
push edx
jmp .trp

20
mach/i386/libem/ror.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .ror
! #bytes in eax
.ror:
pop edx ! return address
cmp eax,4
jne 1f
pop eax
pop ecx
ror eax,cl
push eax
jmp edx
1:
.extern EODDZ
.extern .trp
mov eax,EODDZ
push edx
jmp .trp

39
mach/i386/libem/sar4.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .sar4
.sar4:
! ebx, descriptor address
! eax, index
pop ecx
pop edx ! base address
push ecx
sub eax,(ebx)
mov ecx,8(ebx)
push edx
imul ecx
pop edx
add edx,eax
sar ecx,1
jnb 1f
pop ebx
pop eax
movb (edx),al
jmp ebx
1:
sar ecx,1
jnb 1f
pop ebx
pop eax
o16 mov (edx),ax
jmp ebx
1:
pop ebx
xchg edi,edx ! edi = base address, edx is saved edi
mov eax,esi
mov esi,esp
rep movs
mov esp,esi
mov esi,eax
mov edi,edx
jmp ebx

19
mach/i386/libem/sbi.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .sbi
! #bytes in ecx , top of stack in eax
.sbi:
pop ebx ! return subress
cmp ecx,4
jne 1f
pop ecx
sub eax,ecx
neg eax
jmp ebx
1:
.extern EODDZ
.extern .trp
mov eax,EODDZ
push ebx
jmp .trp

42
mach/i386/libem/set.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .set
! #bytes in ecx
! bit # in eax
.set:
pop ebx ! return address
xor edx,edx
!ifdef create set
sub esp,ecx
push ebx
push edi
mov ebx,esp
xor edi,edi
sar ecx,1
1:
mov 4(ebx)(edi),edx
add edi,4
loop 1b
!endif
mov ebx,8
div ebx
cmp eax,edi
jae 2f
mov edi,edx
movb dl,bits(edi)
mov edi,esp
add edi,eax
orb 8(edi),dl
pop edi
ret
2:
.extern ESET
.extern .trp
pop edi
mov eax,ESET
jmp .trp
.sect .rom
bits:
.data1 1,2,4,8,16,32,64,128

20
mach/i386/libem/sli.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .sli
! #bytes in eax
.sli:
pop edx ! return address
cmp eax,4
jne 1f
pop eax
pop ecx
sal eax,cl
push eax
jmp edx
1:
.extern EODDZ
.extern .trp
mov eax,EODDZ
push edx
jmp .trp

20
mach/i386/libem/sri.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .sri
! #bytes in eax
.sri:
pop edx ! return address
cmp eax,4
jne 1f
pop eax
pop ecx
sar eax,cl
push eax
jmp edx
1:
.extern EODDZ
.extern .trp
mov eax,EODDZ
push edx
jmp .trp

39
mach/i386/libem/sti.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .sti
.define .sts
! #bytes in ecx
! address in ebx
! save edi/esi. they might be register variables
.sts:
pop edx
sar ecx,1
jnb 1f
pop eax
movb (ebx),al
jmp edx
1:
sar ecx,1
jnb 1f
pop eax
o16 mov (ebx),ax
jmp edx
1:
mov ebx,edx
mov edx,edi
jmp 1f
.sti:
! only called with count >> 4
mov edx,edi
mov edi,ebx
pop ebx
sar ecx,2
1:
mov eax,esi
mov esi,esp
rep movs
mov esp,esi
mov edi,edx
mov esi,eax
jmp ebx

5
mach/i386/libem/stop.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .stop
.stop:
int 3

27
mach/i386/libem/strhp.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .strhp
.extern .reghp, .limhp, EHEAP, .trp
.strhp:
pop ebx
pop eax
mov (.reghp),eax
cmp eax,(.limhp)
jb 1f
add eax,02000
and eax,~0777
mov (.limhp),eax
push ebx
push eax
call _brk
pop ecx
pop ebx
cmp eax,-1
je 2f
1:
jmp ebx
2:
mov eax,EHEAP
push ebx
jmp .trp

17
mach/i386/libem/trp.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .trp
.extern .trppc, .stop
! eax is trap number
.trp:
xor ebx,ebx
xchg ebx,(.trppc)
test ebx,ebx
jz 2f
push eax
call ebx
pop eax
ret
2:
call .stop

9
mach/i386/libem/unknown.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .unknown
.extern EILLINS, .fat
.unknown:
mov eax,EILLINS
push eax
jmp .fat

18
mach/i386/libem/xor.s Normal file
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.sect .text; .sect .rom; .sect .data; .sect .bss
.sect .text
.define .xor
! #bytes in ecx
.xor:
pop ebx ! return address
mov edx,edi
mov edi,esp
add edi,ecx
sar ecx,2
1:
pop eax
xor eax,(edi)
stos
loop 1b
mov edi,edx
jmp ebx