Digital Research
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2020-11-06 18:50:37 +01:00
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$title('MP/M II V2.0 Spool Process - Banked Portion')
spool:
do;
$include (copyrt.lit)
/*
Revised:
14 Sept 81 by Thomas Rolander
*/
$include (proces.lit)
$include (queue.lit)
$include (fcb.lit)
/*
BDOS & XDOS Literals
*/
declare
lo literally '005',
open$file literally '015',
delete$file literally '019',
read$file literally '020',
set$dma literally '026',
free$drives literally '039',
make$queue literally '134',
open$queue literally '135',
read$queue literally '137',
cond$read$queue literally '138',
write$queue literally '139',
cond$write$queue literally '140',
delay literally '141',
dispatch literally '142',
set$priority literally '145',
parse$fname literally '152',
attach$list literally '158',
detach$list literally '159';
/*
Common Literals
*/
declare true literally '0FFFFH';
declare false literally '0';
declare forever literally 'while true';
declare boolean literally 'byte';
declare restarts literally
'0C7C7H,0C7C7H,0C7C7H,0C7C7H,
0C7C7H,0C7C7H,0C7C7H,0C7C7H,
0C7C7H,0C7C7H,0C7C7H,0C7C7H,
0C7C7H,0C7C7H,0C7C7H,0C7C7H,
0C7C7H,0C7C7H,0C7C7H';
mon1:
procedure (func,info) external;
declare func byte;
declare info address;
end mon1;
mon2:
procedure (func,info) byte external;
declare func byte;
declare info address;
end mon2;
mon2a:
procedure (func,info) address external;
declare func byte;
declare info address;
end mon2a;
declare control$z literally '1AH';
/*
Spool Process Data Segment
*/
declare os address public
/* The OS address will be filled in here by the
MPM Loader, this address is used by Mon1 & Mon2 */
data (0);
declare spool$stack$pointer address
data (.spool$stk+38);
declare nrs$name (8) byte data (
'Spool ');
declare spool$pd$adr address;
declare spool$pd based spool$pd$adr process$descriptor;
declare spool$stk (20) address
initial (restarts,.spool);
declare spool$lqcb$adr address;
declare spool$lqcb based spool$lqcb$adr
structure (lqueue,
buf (192) byte);
declare spool$uqcb userqcbhead
initial (0,.field);
declare stpspl$cqcb$adr address;
declare stpspl$cqcb based stpspl$cqcb$adr circularqueue;
declare stpspl$uqcb address;
declare field (62) byte;
declare disk$select byte at (.field(0));
declare console byte at (.field(1));
declare null byte initial (0);
declare pcb structure (
field$adr address,
fcb$adr address)
initial (0,.fcb);
declare fcb fcb$descriptor;
declare ret byte;
declare (char,column,itab,jtab,eod,i) byte;
declare nxt$chr$adr address;
declare delim based nxt$chr$adr byte;
declare actbuf address;
declare nmbufs address initial (8);
list$buf:
procedure (buf$adr) byte;
declare buf$adr address;
declare buffer based buf$adr (1) byte;
declare i byte;
do i = 0 to 127;
if (char := buffer(i)) = control$z
then return true;
itab = (char = 09H) and (7 - (column and 7));
if char = 09H
then char = ' ';
do jtab = 0 to itab;
if char >= ' '
then column = column + 1;
if char = 0AH then
do;
column = 0;
if mon2 (cond$read$queue,.stpspl$uqcb) = 0 then
do;
nxt$chr$adr = 0;
call mon1 (lo,char);
return true;
end;
end;
call mon1 (lo,char);
end;
end;
return false;
end list$buf;
copy$file:
procedure (buf$base);
declare buf$base address;
declare buffer based buf$base (1) structure (
record (128) byte);
declare ok byte;
declare i address;
do forever;
actbuf = 0;
ok = true;
do while ok;
call mon1 (set$dma,.buffer(actbuf));
if (ok := (mon2 (read$file,.fcb) = 0)) then
do;
ok = ((actbuf := actbuf+1) <> nmbufs);
end;
else
do;
if actbuf = 0 then return;
end;
end;
do i = 0 to actbuf-1;
if list$buf (.buffer(i))
then return;
end;
if actbuf <> nmbufs then return;
end;
end copy$file;
declare spool$buffer (1024) byte;
declare buffer (1) structure (
char (128) byte) at (.spool$buffer);
declare last$dseg$byte byte
initial (0);
/*
spool:
*/
spool:
procedure;
spool$pd$adr = os + 2;
spool$lqcb$adr = spool$pd$adr + 52;
spool$uqcb.pointer = .spool$lqcb;
stpspl$cqcb$adr = spool$lqcb$adr + 24 + 128;
stpspl$uqcb = .stpspl$cqcb;
call mon1 (make$queue,.spool$lqcb);
call mon1 (make$queue,.stpspl$cqcb);
call mon1 (set$priority,201);
do forever;
call mon1 (read$queue,.spool$uqcb);
spool$pd.disk$slct = disk$select;
spool$pd.console = console;
call mon1 (detach$list,0);
if nxt$chr$adr <> 0ffffh
then nxt$chr$adr = .field(1);
do while (nxt$chr$adr <> 0) and
(nxt$chr$adr <> 0FFFFH);
pcb.field$adr = nxt$chr$adr + 1;
nxt$chr$adr = mon2a (parse$fname,.pcb);
if nxt$chr$adr <> 0FFFFH then
do;
fcb.fn(5) = (fcb.fn(5) or 80h);
if mon2 (open$file,.fcb) <> 0FFH then
do;
fcb.nr = 0;
call mon1 (attach$list,0);
call copy$file (.buffer);
call mon1 (detach$list,0);
call mon1 (free$drives,0ffffh);
if (nxt$chr$adr <> 0) and
(delim = '[') then
do;
pcb.field$adr = nxt$chr$adr + 1;
pcb.fcb$adr = .spool$buffer;
nxt$chr$adr = mon2a (parse$fname,.pcb);
if nxt$chr$adr <> 0ffffh then
do;
if spool$buffer(1) = 'D' then
do;
fcb.ex = 0;
call mon1 (delete$file,.fcb);
end;
if (nxt$chr$adr <> 0) and
(delim <> ']') then
do;
nxt$chr$adr = 0ffffh;
end;
end;
pcb.fcb$adr = .fcb;
end;
end;
end;
end; /* of while */
end;
end spool;
/*
Dummy Main Program
*/
do;
;
end;
end spool;