129 lines
2.1 KiB
Plaintext
129 lines
2.1 KiB
Plaintext
#
|
|
mes 2,EM_WSIZE,EM_PSIZE
|
|
exp $top_size
|
|
#ifdef __sparc
|
|
inp $top_size2
|
|
pro $top_size, 0
|
|
mes 11
|
|
zer EM_PSIZE
|
|
lal 0
|
|
loi EM_PSIZE
|
|
cal $top_size2
|
|
asp 2*EM_PSIZE
|
|
lfr EM_WSIZE
|
|
ret EM_WSIZE
|
|
end 0
|
|
pro $top_size2, 3*EM_WSIZE+3*EM_PSIZE
|
|
#else
|
|
pro $top_size, 3*EM_WSIZE+3*EM_PSIZE
|
|
#endif
|
|
mes 11
|
|
lal 0
|
|
loi EM_PSIZE ; s_brk
|
|
lor 1 ; s_brk SP
|
|
sbs EM_PSIZE ; s_brk-SP
|
|
ret EM_PSIZE ; return size of block to be saved
|
|
end 3*EM_WSIZE+3*EM_PSIZE
|
|
|
|
exp $top_save
|
|
#ifdef __sparc
|
|
inp $top_save2
|
|
pro $top_save,0
|
|
mes 11
|
|
lal 0
|
|
loi 2*EM_PSIZE
|
|
cal $top_save2
|
|
asp 2*EM_PSIZE
|
|
lfr EM_WSIZE
|
|
ret EM_WSIZE
|
|
end 0
|
|
pro $top_save2,0
|
|
#else
|
|
pro $top_save, 0
|
|
#endif
|
|
mes 11
|
|
loe 0
|
|
lae 4 ; load line number and file name
|
|
loi EM_PSIZE
|
|
lim ; ignore mask
|
|
lor 0 ; LB
|
|
lal 0
|
|
loi EM_PSIZE ; size of block
|
|
loc EM_PSIZE
|
|
loc EM_WSIZE
|
|
cuu
|
|
dup EM_WSIZE
|
|
stl 0 ; push & store size in 2 bytes
|
|
lor 1 ; SP (the SP BEFORE pushing)
|
|
lor 1 ; SP (address of stack top to save)
|
|
lal EM_PSIZE ; area
|
|
loi EM_PSIZE
|
|
lol 0 ; size
|
|
bls EM_WSIZE ; move whole block
|
|
asp 3*EM_PSIZE+3*EM_WSIZE ; remove the lot from the stack
|
|
loc 1
|
|
ret EM_WSIZE ; return 1
|
|
end 0
|
|
|
|
sv
|
|
bss EM_PSIZE, 0, 0
|
|
|
|
exp $top_load
|
|
#ifdef __sparc
|
|
inp $top_load1
|
|
pro $top_load,0
|
|
lal 0
|
|
loi EM_PSIZE
|
|
cal $top_load1
|
|
asp EM_PSIZE
|
|
lfr EM_WSIZE
|
|
ret EM_WSIZE
|
|
end 0
|
|
pro $top_load1, 0
|
|
#else
|
|
pro $top_load, 0
|
|
#endif
|
|
mes 11
|
|
lal 0
|
|
loi EM_PSIZE
|
|
lae sv
|
|
sti EM_PSIZE
|
|
|
|
lxl 0
|
|
2
|
|
dup EM_PSIZE
|
|
adp -3*EM_PSIZE
|
|
lal 0
|
|
loi EM_PSIZE ; compare target SP with current LB to see if we must
|
|
loi EM_PSIZE
|
|
cmp ; find another LB first
|
|
zgt *1
|
|
dch ; just follow dynamic chain to make sure we find
|
|
; a legal one
|
|
bra *2
|
|
1
|
|
str 0
|
|
|
|
lae sv
|
|
loi EM_PSIZE
|
|
loi EM_PSIZE
|
|
str 1 ; restore SP
|
|
asp -EM_PSIZE
|
|
lae sv
|
|
loi EM_PSIZE
|
|
lor 1 ; SP (the SP AFTER, see above)
|
|
adp EM_PSIZE
|
|
lae sv
|
|
loi EM_PSIZE
|
|
lof EM_PSIZE ; size of block
|
|
bls EM_WSIZE ; move block back (SP becomes the SP BEFORE again!)
|
|
asp EM_WSIZE+EM_PSIZE ; drop size + SP
|
|
str 0 ; LB
|
|
sim ; ignore mask
|
|
lae 4
|
|
sti EM_PSIZE
|
|
ste 0 ; line and file
|
|
loc 0
|
|
ret EM_WSIZE ; return 0
|
|
end 0
|