Home » Archimedes archive » Zipped Apps » BCPL » BCPL/b/map
BCPL/b/map
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » Archimedes archive » Zipped Apps » BCPL |
| Filename: | BCPL/b/map |
| Read OK: | ✔ |
| File size: | 1005 bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
SECTION "map"
GET "LibHdr"
MANIFEST
$( t.hunk = 1000
t.end = 1002
secword = 12345
libword = 23456
freeblock = #x40000000
blocklength = #x3FFFFF
unsetglobal.number = 33
linelength = 80
JSR.PROFILE = #X0064967F
ENTRYWORD = #X1744442F
maxaddress = 640*1024
$)
GLOBAL
$( g0 : 0
unsetglobal : unsetglobal.number
$)
LET backtrace() BE
$( LET firstloc = 0 // first local variable in stack
stackbase!4 := ((@firstloc) << 2)+52
// store resumption ptr for current coroutine
writes("*N*NBacktrace called*N")
$( LET base = stackbase+6
LET p = (stackbase!4-52) >> 2 // resumption ptr for this coroutine
LET topframe = p-1
IF topframe>stackbase!2
THEN writes("WARNING: Stack has overflowed or been corrupted*N")
writes("*NStack-frame Function Arg 1 Arg 2 Arg 3 .....*N")
FOR i = 1 TO 50 DO
$( writef("%x6/%x6: ", p, p<<2) // stack frame
writefname(p!(-1), p)
writes(" ")
FOR j = p TO topframe DO
$( writearg(!j, p)
IF ((j-p) REM 5)=4 & (j~=topframe)
THEN writes("*n ")
$)
newline();
topframe := p-3
p := (p!(-2)-52) >> 2 // next frame down
IF p=base THEN $( writes("Base of stack*N")
BREAK
$)
UNLESS base<p<=topframe THEN
$( writef("Improper link %X8 %X8 %X8*N", base, p, topframe)
BREAK
$)
IF topframe-p>50 THEN topframe := p+50 // not more than 50 args
$)
$)
writes("*NEnd of backtrace*N*N")
$)
AND writefname(n, p) BE
TEST n=-1
THEN writes("ROOT ")
ELSE writearg(n, p) // function name
AND mapstore() BE
$( LET g = @G0
LET nglobs = G0
LET column = 0
LET p = blocklist
writes("*N*NMapstore called*N")
TEST ug<=G0<=10000
THEN writef("*N%N globals allocated*N", G0)
ELSE $( writes("Global zero is corrupted*N"); nglobs := 250 $)
writef("*NValues set in Global Vector (%X6/%X6):*N", g, g<<2)
FOR t = 0 TO nglobs DO
IF g!t~=unsetglobal | t=unsetglobal.number THEN
$( IF column>linelength-20 THEN
$( newline()
column := 0
$)
TEST t>=1000
THEN writef("%i4: ",t)
ELSE writef("G%I3: ", t)
writearg(g!t, 0)
writes(" ")
column := column+20
$)
writes("*N*NMemory blocks:*N")
UNTIL !p = 0 DO
$( writef("*n%x6/%x6: ", p+1, p+1 << 2)
TEST (!p & freeblock)=0
THEN // used block
$( TEST g = p+1
THEN writes("Global vector*N")
ELSE TEST stackbase = p+1
THEN writes("Current stack*N")
ELSE TEST p!1=t.hunk
THEN $( LET q = p+3
LET column = 0
writes("Program code*N")
UNTIL !q=t.end DO
$( TEST (!q = entryword) |
(q!-3 = libword) |
(!q = jsr.profile)
THEN
$( IF column>=linelength-10 THEN
$( newline()
column := 0
$)
TEST !q = jsr.profile THEN
$( LET count = 1!q
writef( " %x6:[ ~ %IA]" , q , count )
q := q+1
$)
ELSE
writef(" %x6/%x6: %s", q, q<<2, q-2)
column := column+24
$)
ELSE IF !q=secword THEN
$( writef("*n %x6/%x6: Section %S*N", q, q<<2, q+1)
column := 0
$)
q := q+1
$)
newline()
$)
ELSE writef("Allocated Block of %N. BCPL words*N",
(!p & blocklength)-1 )
$)
ELSE // freeblock
writef("Free Block of %N. BCPL words*N", (!p & blocklength)-1 )
p := p+(!p & blocklength) // next block
$)
writes("*NEnd of mapstore*N*N")
$)
AND writearg(n,p) BE // WRITES a hex no./function name in a 10 char field
$( // P is BCPL stack pointer
LET f = (n>>2)-2
IF 8<f<=maxaddress
THEN IF (f!2=entryword | f!(-1)=libword) & (f%0=7)
THEN $( writef("%s ", f)
RETURN
$)
IF -1000<n<1000 & n~=0 THEN
$( WRITEF("%X3(%I4) ", N, N)
RETURN
$)
IF p+2<=n<=p+52 THEN // does n point to an item in this stack frame?
// (first 50 args)
$( n := n-p-1
writef("-> Arg%I2 ", n)
RETURN
$)
writef("%x8 ", n)
$)
00000000 53 45 43 54 49 4f 4e 20 22 6d 61 70 22 0a 0a 47 |SECTION "map"..G|
00000010 45 54 20 22 4c 69 62 48 64 72 22 0a 0a 4d 41 4e |ET "LibHdr"..MAN|
00000020 49 46 45 53 54 0a 24 28 20 74 2e 68 75 6e 6b 09 |IFEST.$( t.hunk.|
00000030 20 20 20 20 20 20 3d 20 31 30 30 30 0a 20 20 20 | = 1000. |
00000040 74 2e 65 6e 64 09 20 20 20 20 20 20 3d 20 31 30 |t.end. = 10|
00000050 30 32 0a 20 20 20 73 65 63 77 6f 72 64 09 20 20 |02. secword. |
00000060 20 20 20 20 3d 20 31 32 33 34 35 0a 20 20 20 6c | = 12345. l|
00000070 69 62 77 6f 72 64 09 20 20 20 20 20 20 3d 20 32 |ibword. = 2|
00000080 33 34 35 36 0a 20 20 20 66 72 65 65 62 6c 6f 63 |3456. freebloc|
00000090 6b 09 20 20 20 20 20 20 3d 20 23 78 34 30 30 30 |k. = #x4000|
000000a0 30 30 30 30 0a 20 20 20 62 6c 6f 63 6b 6c 65 6e |0000. blocklen|
000000b0 67 74 68 09 20 20 20 20 20 20 3d 20 23 78 33 46 |gth. = #x3F|
000000c0 46 46 46 46 0a 20 20 20 75 6e 73 65 74 67 6c 6f |FFFF. unsetglo|
000000d0 62 61 6c 2e 6e 75 6d 62 65 72 20 3d 20 33 33 0a |bal.number = 33.|
000000e0 20 20 20 6c 69 6e 65 6c 65 6e 67 74 68 09 20 20 | linelength. |
000000f0 20 20 20 20 3d 20 38 30 0a 20 20 20 4a 53 52 2e | = 80. JSR.|
00000100 50 52 4f 46 49 4c 45 09 20 20 20 20 20 20 3d 20 |PROFILE. = |
00000110 23 58 30 30 36 34 39 36 37 46 0a 20 20 20 45 4e |#X0064967F. EN|
00000120 54 52 59 57 4f 52 44 09 20 20 20 20 20 20 3d 20 |TRYWORD. = |
00000130 23 58 31 37 34 34 34 34 32 46 0a 20 20 20 6d 61 |#X1744442F. ma|
00000140 78 61 64 64 72 65 73 73 09 20 20 20 20 20 20 3d |xaddress. =|
00000150 20 36 34 30 2a 31 30 32 34 0a 24 29 0a 0a 47 4c | 640*1024.$)..GL|
00000160 4f 42 41 4c 0a 24 28 20 67 30 09 09 20 20 20 20 |OBAL.$( g0.. |
00000170 20 20 3a 20 30 0a 20 20 20 75 6e 73 65 74 67 6c | : 0. unsetgl|
00000180 6f 62 61 6c 09 20 20 20 20 20 20 3a 20 75 6e 73 |obal. : uns|
00000190 65 74 67 6c 6f 62 61 6c 2e 6e 75 6d 62 65 72 0a |etglobal.number.|
000001a0 24 29 0a 0a 4c 45 54 20 62 61 63 6b 74 72 61 63 |$)..LET backtrac|
000001b0 65 28 29 20 42 45 0a 24 28 20 4c 45 54 20 66 69 |e() BE.$( LET fi|
000001c0 72 73 74 6c 6f 63 20 3d 20 30 09 20 20 2f 2f 20 |rstloc = 0. // |
000001d0 66 69 72 73 74 20 6c 6f 63 61 6c 20 76 61 72 69 |first local vari|
000001e0 61 62 6c 65 20 69 6e 20 73 74 61 63 6b 0a 20 20 |able in stack. |
000001f0 20 73 74 61 63 6b 62 61 73 65 21 34 20 3a 3d 20 | stackbase!4 := |
00000200 28 28 40 66 69 72 73 74 6c 6f 63 29 20 3c 3c 20 |((@firstloc) << |
00000210 32 29 2b 35 32 0a 09 20 20 20 20 2f 2f 20 73 74 |2)+52.. // st|
00000220 6f 72 65 20 72 65 73 75 6d 70 74 69 6f 6e 20 70 |ore resumption p|
00000230 74 72 20 66 6f 72 20 63 75 72 72 65 6e 74 20 63 |tr for current c|
00000240 6f 72 6f 75 74 69 6e 65 0a 20 20 20 77 72 69 74 |oroutine. writ|
00000250 65 73 28 22 2a 4e 2a 4e 42 61 63 6b 74 72 61 63 |es("*N*NBacktrac|
00000260 65 20 63 61 6c 6c 65 64 2a 4e 22 29 0a 20 20 20 |e called*N"). |
00000270 24 28 20 4c 45 54 20 62 61 73 65 20 3d 20 73 74 |$( LET base = st|
00000280 61 63 6b 62 61 73 65 2b 36 0a 20 20 20 20 20 20 |ackbase+6. |
00000290 4c 45 54 20 70 20 3d 20 28 73 74 61 63 6b 62 61 |LET p = (stackba|
000002a0 73 65 21 34 2d 35 32 29 20 3e 3e 20 32 20 20 2f |se!4-52) >> 2 /|
000002b0 2f 20 72 65 73 75 6d 70 74 69 6f 6e 20 70 74 72 |/ resumption ptr|
000002c0 20 66 6f 72 20 74 68 69 73 20 63 6f 72 6f 75 74 | for this corout|
000002d0 69 6e 65 0a 20 20 20 20 20 20 4c 45 54 20 74 6f |ine. LET to|
000002e0 70 66 72 61 6d 65 20 3d 20 70 2d 31 0a 0a 20 20 |pframe = p-1.. |
000002f0 20 20 20 20 49 46 20 74 6f 70 66 72 61 6d 65 3e | IF topframe>|
00000300 73 74 61 63 6b 62 61 73 65 21 32 0a 20 20 20 20 |stackbase!2. |
00000310 20 20 54 48 45 4e 20 77 72 69 74 65 73 28 22 57 | THEN writes("W|
00000320 41 52 4e 49 4e 47 3a 20 53 74 61 63 6b 20 68 61 |ARNING: Stack ha|
00000330 73 20 6f 76 65 72 66 6c 6f 77 65 64 20 6f 72 20 |s overflowed or |
00000340 62 65 65 6e 20 63 6f 72 72 75 70 74 65 64 2a 4e |been corrupted*N|
00000350 22 29 0a 20 20 20 20 20 20 77 72 69 74 65 73 28 |"). writes(|
00000360 22 2a 4e 53 74 61 63 6b 2d 66 72 61 6d 65 20 20 |"*NStack-frame |
00000370 20 20 20 46 75 6e 63 74 69 6f 6e 20 20 20 20 41 | Function A|
00000380 72 67 20 31 20 20 20 20 20 41 72 67 20 32 20 20 |rg 1 Arg 2 |
00000390 20 20 20 41 72 67 20 33 20 20 20 20 20 2e 2e 2e | Arg 3 ...|
000003a0 2e 2e 2a 4e 22 29 0a 0a 20 20 20 20 20 20 46 4f |..*N").. FO|
000003b0 52 20 69 20 3d 20 31 20 54 4f 20 35 30 20 44 4f |R i = 1 TO 50 DO|
000003c0 0a 20 20 20 20 20 20 24 28 20 77 72 69 74 65 66 |. $( writef|
000003d0 28 22 25 78 36 2f 25 78 36 3a 20 20 22 2c 20 70 |("%x6/%x6: ", p|
000003e0 2c 20 70 3c 3c 32 29 09 2f 2f 20 73 74 61 63 6b |, p<<2).// stack|
000003f0 20 66 72 61 6d 65 0a 09 20 77 72 69 74 65 66 6e | frame.. writefn|
00000400 61 6d 65 28 70 21 28 2d 31 29 2c 20 70 29 0a 09 |ame(p!(-1), p)..|
00000410 20 77 72 69 74 65 73 28 22 20 20 22 29 0a 09 20 | writes(" ").. |
00000420 46 4f 52 20 6a 20 3d 20 70 20 54 4f 20 74 6f 70 |FOR j = p TO top|
00000430 66 72 61 6d 65 20 44 4f 0a 09 20 24 28 20 77 72 |frame DO.. $( wr|
00000440 69 74 65 61 72 67 28 21 6a 2c 20 70 29 0a 09 20 |itearg(!j, p).. |
00000450 20 20 20 49 46 20 28 28 6a 2d 70 29 20 52 45 4d | IF ((j-p) REM|
00000460 20 35 29 3d 34 20 26 20 28 6a 7e 3d 74 6f 70 66 | 5)=4 & (j~=topf|
00000470 72 61 6d 65 29 0a 09 20 20 20 20 20 20 20 54 48 |rame).. TH|
00000480 45 4e 20 77 72 69 74 65 73 28 22 2a 6e 20 20 20 |EN writes("*n |
00000490 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | |
000004a0 20 20 20 20 20 20 20 20 20 22 29 0a 09 20 24 29 | ").. $)|
000004b0 0a 09 20 6e 65 77 6c 69 6e 65 28 29 3b 0a 09 20 |.. newline();.. |
000004c0 74 6f 70 66 72 61 6d 65 20 3a 3d 20 70 2d 33 0a |topframe := p-3.|
000004d0 09 20 70 20 3a 3d 20 28 70 21 28 2d 32 29 2d 35 |. p := (p!(-2)-5|
000004e0 32 29 20 3e 3e 20 32 09 20 20 20 2f 2f 20 6e 65 |2) >> 2. // ne|
000004f0 78 74 20 66 72 61 6d 65 20 64 6f 77 6e 0a 09 20 |xt frame down.. |
00000500 49 46 20 70 3d 62 61 73 65 20 54 48 45 4e 20 24 |IF p=base THEN $|
00000510 28 20 77 72 69 74 65 73 28 22 42 61 73 65 20 6f |( writes("Base o|
00000520 66 20 73 74 61 63 6b 2a 4e 22 29 0a 09 09 09 20 |f stack*N").... |
00000530 20 20 42 52 45 41 4b 0a 09 09 09 24 29 0a 09 20 | BREAK....$).. |
00000540 55 4e 4c 45 53 53 20 62 61 73 65 3c 70 3c 3d 74 |UNLESS base<p<=t|
00000550 6f 70 66 72 61 6d 65 20 54 48 45 4e 0a 09 20 24 |opframe THEN.. $|
00000560 28 20 77 72 69 74 65 66 28 22 49 6d 70 72 6f 70 |( writef("Improp|
00000570 65 72 20 6c 69 6e 6b 20 25 58 38 20 25 58 38 20 |er link %X8 %X8 |
00000580 25 58 38 2a 4e 22 2c 20 62 61 73 65 2c 20 70 2c |%X8*N", base, p,|
00000590 20 74 6f 70 66 72 61 6d 65 29 0a 09 20 20 20 20 | topframe).. |
000005a0 42 52 45 41 4b 0a 09 20 24 29 0a 09 20 49 46 20 |BREAK.. $).. IF |
000005b0 74 6f 70 66 72 61 6d 65 2d 70 3e 35 30 20 54 48 |topframe-p>50 TH|
000005c0 45 4e 20 74 6f 70 66 72 61 6d 65 20 3a 3d 20 70 |EN topframe := p|
000005d0 2b 35 30 20 20 2f 2f 20 6e 6f 74 20 6d 6f 72 65 |+50 // not more|
000005e0 20 74 68 61 6e 20 35 30 20 61 72 67 73 0a 20 20 | than 50 args. |
000005f0 20 20 20 20 24 29 0a 0a 20 20 20 24 29 0a 0a 20 | $).. $).. |
00000600 20 20 77 72 69 74 65 73 28 22 2a 4e 45 6e 64 20 | writes("*NEnd |
00000610 6f 66 20 62 61 63 6b 74 72 61 63 65 2a 4e 2a 4e |of backtrace*N*N|
00000620 22 29 0a 24 29 0a 0a 41 4e 44 20 77 72 69 74 65 |").$)..AND write|
00000630 66 6e 61 6d 65 28 6e 2c 20 70 29 20 42 45 0a 20 |fname(n, p) BE. |
00000640 20 20 54 45 53 54 20 6e 3d 2d 31 0a 20 20 20 20 | TEST n=-1. |
00000650 20 20 54 48 45 4e 20 77 72 69 74 65 73 28 22 52 | THEN writes("R|
00000660 4f 4f 54 20 20 20 20 20 20 22 29 0a 20 20 20 20 |OOT "). |
00000670 20 20 45 4c 53 45 20 77 72 69 74 65 61 72 67 28 | ELSE writearg(|
00000680 6e 2c 20 70 29 20 20 2f 2f 20 66 75 6e 63 74 69 |n, p) // functi|
00000690 6f 6e 20 6e 61 6d 65 0a 0a 0a 41 4e 44 20 6d 61 |on name...AND ma|
000006a0 70 73 74 6f 72 65 28 29 20 42 45 0a 24 28 20 4c |pstore() BE.$( L|
000006b0 45 54 20 67 20 3d 20 40 47 30 0a 20 20 20 4c 45 |ET g = @G0. LE|
000006c0 54 20 6e 67 6c 6f 62 73 20 3d 20 47 30 0a 20 20 |T nglobs = G0. |
000006d0 20 4c 45 54 20 63 6f 6c 75 6d 6e 20 3d 20 30 0a | LET column = 0.|
000006e0 20 20 20 4c 45 54 20 70 20 3d 20 62 6c 6f 63 6b | LET p = block|
000006f0 6c 69 73 74 0a 0a 20 20 20 77 72 69 74 65 73 28 |list.. writes(|
00000700 22 2a 4e 2a 4e 4d 61 70 73 74 6f 72 65 20 63 61 |"*N*NMapstore ca|
00000710 6c 6c 65 64 2a 4e 22 29 0a 0a 20 20 20 54 45 53 |lled*N").. TES|
00000720 54 20 75 67 3c 3d 47 30 3c 3d 31 30 30 30 30 0a |T ug<=G0<=10000.|
00000730 20 20 20 20 20 20 54 48 45 4e 20 77 72 69 74 65 | THEN write|
00000740 66 28 22 2a 4e 25 4e 20 67 6c 6f 62 61 6c 73 20 |f("*N%N globals |
00000750 61 6c 6c 6f 63 61 74 65 64 2a 4e 22 2c 20 47 30 |allocated*N", G0|
00000760 29 0a 20 20 20 20 20 20 45 4c 53 45 20 24 28 20 |). ELSE $( |
00000770 77 72 69 74 65 73 28 22 47 6c 6f 62 61 6c 20 7a |writes("Global z|
00000780 65 72 6f 20 69 73 20 63 6f 72 72 75 70 74 65 64 |ero is corrupted|
00000790 2a 4e 22 29 3b 20 6e 67 6c 6f 62 73 20 3a 3d 20 |*N"); nglobs := |
000007a0 32 35 30 20 24 29 0a 0a 20 20 20 77 72 69 74 65 |250 $).. write|
000007b0 66 28 22 2a 4e 56 61 6c 75 65 73 20 73 65 74 20 |f("*NValues set |
000007c0 69 6e 20 47 6c 6f 62 61 6c 20 56 65 63 74 6f 72 |in Global Vector|
000007d0 20 28 25 58 36 2f 25 58 36 29 3a 2a 4e 22 2c 20 | (%X6/%X6):*N", |
000007e0 67 2c 20 67 3c 3c 32 29 0a 0a 20 20 20 46 4f 52 |g, g<<2).. FOR|
000007f0 20 74 20 3d 20 30 20 54 4f 20 6e 67 6c 6f 62 73 | t = 0 TO nglobs|
00000800 20 44 4f 0a 20 20 20 20 20 20 49 46 20 67 21 74 | DO. IF g!t|
00000810 7e 3d 75 6e 73 65 74 67 6c 6f 62 61 6c 20 7c 20 |~=unsetglobal | |
00000820 74 3d 75 6e 73 65 74 67 6c 6f 62 61 6c 2e 6e 75 |t=unsetglobal.nu|
00000830 6d 62 65 72 20 54 48 45 4e 0a 20 20 20 20 20 20 |mber THEN. |
00000840 24 28 20 49 46 20 63 6f 6c 75 6d 6e 3e 6c 69 6e |$( IF column>lin|
00000850 65 6c 65 6e 67 74 68 2d 32 30 20 54 48 45 4e 0a |elength-20 THEN.|
00000860 09 20 24 28 20 6e 65 77 6c 69 6e 65 28 29 0a 09 |. $( newline()..|
00000870 20 20 20 20 63 6f 6c 75 6d 6e 20 3a 3d 20 30 0a | column := 0.|
00000880 09 20 24 29 0a 09 20 54 45 53 54 20 74 3e 3d 31 |. $).. TEST t>=1|
00000890 30 30 30 0a 09 20 20 20 20 54 48 45 4e 20 77 72 |000.. THEN wr|
000008a0 69 74 65 66 28 22 25 69 34 3a 20 22 2c 74 29 0a |itef("%i4: ",t).|
000008b0 09 20 20 20 20 45 4c 53 45 20 77 72 69 74 65 66 |. ELSE writef|
000008c0 28 22 47 25 49 33 3a 20 22 2c 20 74 29 0a 09 20 |("G%I3: ", t).. |
000008d0 77 72 69 74 65 61 72 67 28 67 21 74 2c 20 30 29 |writearg(g!t, 0)|
000008e0 0a 09 20 77 72 69 74 65 73 28 22 20 20 20 22 29 |.. writes(" ")|
000008f0 0a 09 20 63 6f 6c 75 6d 6e 20 3a 3d 20 63 6f 6c |.. column := col|
00000900 75 6d 6e 2b 32 30 0a 20 20 20 20 20 20 24 29 0a |umn+20. $).|
00000910 0a 0a 20 20 20 77 72 69 74 65 73 28 22 2a 4e 2a |.. writes("*N*|
00000920 4e 4d 65 6d 6f 72 79 20 62 6c 6f 63 6b 73 3a 2a |NMemory blocks:*|
00000930 4e 22 29 0a 0a 20 20 20 55 4e 54 49 4c 20 21 70 |N").. UNTIL !p|
00000940 20 3d 20 30 20 44 4f 0a 20 20 20 24 28 20 77 72 | = 0 DO. $( wr|
00000950 69 74 65 66 28 22 2a 6e 25 78 36 2f 25 78 36 3a |itef("*n%x6/%x6:|
00000960 20 22 2c 20 70 2b 31 2c 20 70 2b 31 20 3c 3c 20 | ", p+1, p+1 << |
00000970 32 29 0a 20 20 20 20 20 20 54 45 53 54 20 28 21 |2). TEST (!|
00000980 70 20 26 20 66 72 65 65 62 6c 6f 63 6b 29 3d 30 |p & freeblock)=0|
00000990 0a 20 20 20 20 20 20 54 48 45 4e 20 20 2f 2f 20 |. THEN // |
000009a0 75 73 65 64 20 62 6c 6f 63 6b 0a 20 20 20 20 20 |used block. |
000009b0 20 24 28 20 54 45 53 54 20 67 20 3d 20 70 2b 31 | $( TEST g = p+1|
000009c0 0a 09 20 20 20 20 54 48 45 4e 20 77 72 69 74 65 |.. THEN write|
000009d0 73 28 22 47 6c 6f 62 61 6c 20 76 65 63 74 6f 72 |s("Global vector|
000009e0 2a 4e 22 29 0a 09 20 45 4c 53 45 20 54 45 53 54 |*N").. ELSE TEST|
000009f0 20 73 74 61 63 6b 62 61 73 65 20 3d 20 70 2b 31 | stackbase = p+1|
00000a00 0a 09 20 20 20 20 54 48 45 4e 20 77 72 69 74 65 |.. THEN write|
00000a10 73 28 22 43 75 72 72 65 6e 74 20 73 74 61 63 6b |s("Current stack|
00000a20 2a 4e 22 29 0a 09 20 45 4c 53 45 20 54 45 53 54 |*N").. ELSE TEST|
00000a30 20 70 21 31 3d 74 2e 68 75 6e 6b 0a 09 20 20 20 | p!1=t.hunk.. |
00000a40 20 54 48 45 4e 20 24 28 20 4c 45 54 20 71 20 3d | THEN $( LET q =|
00000a50 20 70 2b 33 0a 09 09 20 20 20 20 4c 45 54 20 63 | p+3... LET c|
00000a60 6f 6c 75 6d 6e 20 3d 20 30 0a 09 09 20 20 20 20 |olumn = 0... |
00000a70 77 72 69 74 65 73 28 22 50 72 6f 67 72 61 6d 20 |writes("Program |
00000a80 63 6f 64 65 2a 4e 22 29 0a 09 09 20 20 20 20 55 |code*N")... U|
00000a90 4e 54 49 4c 20 21 71 3d 74 2e 65 6e 64 20 44 4f |NTIL !q=t.end DO|
00000aa0 0a 09 09 20 20 20 20 24 28 20 54 45 53 54 20 28 |... $( TEST (|
00000ab0 21 71 20 3d 20 65 6e 74 72 79 77 6f 72 64 29 20 |!q = entryword) |
00000ac0 7c 0a 09 09 09 20 20 20 20 28 71 21 2d 33 20 3d ||.... (q!-3 =|
00000ad0 20 6c 69 62 77 6f 72 64 29 20 7c 0a 09 09 09 20 | libword) |.... |
00000ae0 20 20 20 28 21 71 20 3d 20 6a 73 72 2e 70 72 6f | (!q = jsr.pro|
00000af0 66 69 6c 65 29 0a 09 09 20 20 20 20 20 20 20 54 |file)... T|
00000b00 48 45 4e 0a 09 09 20 20 20 20 20 20 20 24 28 20 |HEN... $( |
00000b10 49 46 20 63 6f 6c 75 6d 6e 3e 3d 6c 69 6e 65 6c |IF column>=linel|
00000b20 65 6e 67 74 68 2d 31 30 20 54 48 45 4e 0a 09 09 |ength-10 THEN...|
00000b30 09 20 20 24 28 20 6e 65 77 6c 69 6e 65 28 29 0a |. $( newline().|
00000b40 09 09 09 20 20 20 20 20 63 6f 6c 75 6d 6e 20 3a |... column :|
00000b50 3d 20 30 0a 09 09 09 20 20 24 29 0a 09 09 09 20 |= 0.... $).... |
00000b60 20 54 45 53 54 20 21 71 20 3d 20 6a 73 72 2e 70 | TEST !q = jsr.p|
00000b70 72 6f 66 69 6c 65 20 54 48 45 4e 0a 09 09 09 20 |rofile THEN.... |
00000b80 20 24 28 20 4c 45 54 20 63 6f 75 6e 74 20 3d 20 | $( LET count = |
00000b90 31 21 71 0a 09 09 09 20 20 20 20 20 77 72 69 74 |1!q.... writ|
00000ba0 65 66 28 20 22 20 20 25 78 36 3a 5b 20 7e 20 25 |ef( " %x6:[ ~ %|
00000bb0 49 41 5d 22 20 2c 20 71 20 2c 20 63 6f 75 6e 74 |IA]" , q , count|
00000bc0 20 29 0a 09 09 09 20 20 20 20 20 71 20 3a 3d 20 | ).... q := |
00000bd0 71 2b 31 0a 09 09 09 20 20 24 29 0a 09 09 09 20 |q+1.... $).... |
00000be0 20 45 4c 53 45 0a 09 09 09 20 20 20 20 20 77 72 | ELSE.... wr|
00000bf0 69 74 65 66 28 22 20 20 25 78 36 2f 25 78 36 3a |itef(" %x6/%x6:|
00000c00 20 25 73 22 2c 20 71 2c 20 71 3c 3c 32 2c 20 71 | %s", q, q<<2, q|
00000c10 2d 32 29 0a 09 09 09 20 20 63 6f 6c 75 6d 6e 20 |-2).... column |
00000c20 3a 3d 20 63 6f 6c 75 6d 6e 2b 32 34 0a 09 09 20 |:= column+24... |
00000c30 20 20 20 20 20 20 24 29 0a 09 09 20 20 20 20 20 | $)... |
00000c40 20 20 45 4c 53 45 20 49 46 20 21 71 3d 73 65 63 | ELSE IF !q=sec|
00000c50 77 6f 72 64 20 54 48 45 4e 0a 09 09 20 20 20 20 |word THEN... |
00000c60 20 20 20 24 28 20 77 72 69 74 65 66 28 22 2a 6e | $( writef("*n|
00000c70 20 20 25 78 36 2f 25 78 36 3a 20 53 65 63 74 69 | %x6/%x6: Secti|
00000c80 6f 6e 20 25 53 2a 4e 22 2c 20 71 2c 20 71 3c 3c |on %S*N", q, q<<|
00000c90 32 2c 20 71 2b 31 29 0a 09 09 09 20 20 63 6f 6c |2, q+1).... col|
00000ca0 75 6d 6e 20 3a 3d 20 30 0a 09 09 20 20 20 20 20 |umn := 0... |
00000cb0 20 20 24 29 0a 09 09 20 20 20 20 20 20 20 71 20 | $)... q |
00000cc0 3a 3d 20 71 2b 31 0a 09 09 20 20 20 20 24 29 0a |:= q+1... $).|
00000cd0 09 09 20 20 20 20 6e 65 77 6c 69 6e 65 28 29 0a |.. newline().|
00000ce0 09 09 20 24 29 0a 09 20 45 4c 53 45 20 77 72 69 |.. $).. ELSE wri|
00000cf0 74 65 66 28 22 41 6c 6c 6f 63 61 74 65 64 20 42 |tef("Allocated B|
00000d00 6c 6f 63 6b 20 6f 66 20 25 4e 2e 20 42 43 50 4c |lock of %N. BCPL|
00000d10 20 77 6f 72 64 73 2a 4e 22 2c 0a 09 09 09 09 09 | words*N",......|
00000d20 20 28 21 70 20 26 20 62 6c 6f 63 6b 6c 65 6e 67 | (!p & blockleng|
00000d30 74 68 29 2d 31 20 29 0a 20 20 20 20 20 20 24 29 |th)-1 ). $)|
00000d40 0a 0a 20 20 20 20 20 20 45 4c 53 45 20 20 2f 2f |.. ELSE //|
00000d50 20 66 72 65 65 62 6c 6f 63 6b 0a 09 20 77 72 69 | freeblock.. wri|
00000d60 74 65 66 28 22 46 72 65 65 20 42 6c 6f 63 6b 20 |tef("Free Block |
00000d70 6f 66 20 25 4e 2e 20 42 43 50 4c 20 77 6f 72 64 |of %N. BCPL word|
00000d80 73 2a 4e 22 2c 20 28 21 70 20 26 20 62 6c 6f 63 |s*N", (!p & bloc|
00000d90 6b 6c 65 6e 67 74 68 29 2d 31 20 29 0a 0a 20 20 |klength)-1 ).. |
00000da0 20 20 20 20 70 20 3a 3d 20 70 2b 28 21 70 20 26 | p := p+(!p &|
00000db0 20 62 6c 6f 63 6b 6c 65 6e 67 74 68 29 20 20 2f | blocklength) /|
00000dc0 2f 20 6e 65 78 74 20 62 6c 6f 63 6b 0a 20 20 20 |/ next block. |
00000dd0 24 29 0a 20 20 20 77 72 69 74 65 73 28 22 2a 4e |$). writes("*N|
00000de0 45 6e 64 20 6f 66 20 6d 61 70 73 74 6f 72 65 2a |End of mapstore*|
00000df0 4e 2a 4e 22 29 0a 24 29 0a 0a 0a 41 4e 44 20 77 |N*N").$)...AND w|
00000e00 72 69 74 65 61 72 67 28 6e 2c 70 29 20 42 45 20 |ritearg(n,p) BE |
00000e10 20 2f 2f 20 57 52 49 54 45 53 20 61 20 68 65 78 | // WRITES a hex|
00000e20 20 6e 6f 2e 2f 66 75 6e 63 74 69 6f 6e 20 6e 61 | no./function na|
00000e30 6d 65 20 69 6e 20 61 20 31 30 20 63 68 61 72 20 |me in a 10 char |
00000e40 66 69 65 6c 64 0a 24 28 20 2f 2f 20 50 20 69 73 |field.$( // P is|
00000e50 20 42 43 50 4c 20 73 74 61 63 6b 20 70 6f 69 6e | BCPL stack poin|
00000e60 74 65 72 0a 20 20 20 4c 45 54 20 66 20 3d 20 28 |ter. LET f = (|
00000e70 6e 3e 3e 32 29 2d 32 0a 0a 20 20 20 49 46 20 38 |n>>2)-2.. IF 8|
00000e80 3c 66 3c 3d 6d 61 78 61 64 64 72 65 73 73 0a 20 |<f<=maxaddress. |
00000e90 20 20 54 48 45 4e 20 49 46 20 28 66 21 32 3d 65 | THEN IF (f!2=e|
00000ea0 6e 74 72 79 77 6f 72 64 20 7c 20 66 21 28 2d 31 |ntryword | f!(-1|
00000eb0 29 3d 6c 69 62 77 6f 72 64 29 20 26 20 28 66 25 |)=libword) & (f%|
00000ec0 30 3d 37 29 0a 09 54 48 45 4e 20 24 28 20 77 72 |0=7)..THEN $( wr|
00000ed0 69 74 65 66 28 22 25 73 20 20 20 22 2c 20 66 29 |itef("%s ", f)|
00000ee0 0a 09 09 52 45 54 55 52 4e 0a 09 20 20 20 20 20 |...RETURN.. |
00000ef0 24 29 0a 0a 20 20 20 49 46 20 2d 31 30 30 30 3c |$).. IF -1000<|
00000f00 6e 3c 31 30 30 30 20 26 20 6e 7e 3d 30 20 54 48 |n<1000 & n~=0 TH|
00000f10 45 4e 0a 20 20 20 24 28 20 57 52 49 54 45 46 28 |EN. $( WRITEF(|
00000f20 22 25 58 33 28 25 49 34 29 20 22 2c 20 4e 2c 20 |"%X3(%I4) ", N, |
00000f30 4e 29 0a 20 20 20 20 20 20 52 45 54 55 52 4e 0a |N). RETURN.|
00000f40 20 20 20 24 29 0a 0a 20 20 20 49 46 20 70 2b 32 | $).. IF p+2|
00000f50 3c 3d 6e 3c 3d 70 2b 35 32 20 54 48 45 4e 20 20 |<=n<=p+52 THEN |
00000f60 2f 2f 20 64 6f 65 73 20 6e 20 70 6f 69 6e 74 20 |// does n point |
00000f70 74 6f 20 61 6e 20 69 74 65 6d 20 69 6e 20 74 68 |to an item in th|
00000f80 69 73 20 73 74 61 63 6b 20 66 72 61 6d 65 3f 0a |is stack frame?.|
00000f90 09 09 09 20 2f 2f 20 28 66 69 72 73 74 20 35 30 |... // (first 50|
00000fa0 20 61 72 67 73 29 0a 20 20 20 24 28 20 6e 20 3a | args). $( n :|
00000fb0 3d 20 6e 2d 70 2d 31 0a 20 20 20 20 20 20 77 72 |= n-p-1. wr|
00000fc0 69 74 65 66 28 22 2d 3e 20 41 72 67 25 49 32 20 |itef("-> Arg%I2 |
00000fd0 20 22 2c 20 6e 29 0a 20 20 20 20 20 20 52 45 54 | ", n). RET|
00000fe0 55 52 4e 0a 20 20 20 24 29 0a 0a 20 20 20 77 72 |URN. $).. wr|
00000ff0 69 74 65 66 28 22 25 78 38 20 20 22 2c 20 6e 29 |itef("%x8 ", n)|
00001000 0a 24 29 0a 0a |.$)..|
00001005 
.