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10 R f
2494 5368 2494 5584 Dl
3574 5368 2494 5368 Dl
3574 5584 3574 5368 Dl
2494 5584 3574 5584 Dl
(U Address)1 424 1 2822 5496 t
6 R f
(29 15)1 1048 1 2510 5564 t
10 R f
3574 5368 3574 5584 Dl
4654 5368 3574 5368 Dl
4654 5584 4654 5368 Dl
3574 5584 4654 5584 Dl
(V Address)1 424 1 3902 5496 t
6 R f
(14 0)1 1048 1 3590 5564 t
10 R f
(It was produced by this input:)5 1191 1 720 5782 t
9 CW f
(.begin dformat)1 756 1 1080 5952 t
(style bitwid 0.1)2 864 1 1080 6062 t
(Instr)1080 6172 w
(35-30 OpCode)1 648 1 1512 6282 t
(29-15 U Address)2 810 1 1512 6392 t
(14-0 V Address)2 756 1 1512 6502 t
(.end)1080 6612 w
10 R f
( are simply described; this)4 1077( pictures)1 347( Simple)1 340(These examples illustrate the typical use of DFORMAT.)7 2306 4 970 6828 t
( 2 describes additional parameters for controlling pic-)7 2220( Section)1 362(level of detail is suf\256cient for most users.)7 1738 3 720 6948 t
( parameters aren't enough,)3 1069( the built-in)2 469( If)1 117(tures, and Section 3 contains several more sophisticated examples.)8 2665 4 720 7068 t
(Section 4 describes how you might tinker with the implementation.)9 2688 1 720 7188 t
cleartomark
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%%EndPage: 2 4
%%Page: 3 5
/saveobj save def
mark
5 pagesetup
10 R f
(- 3 -)2 166 1 2797 480 t
10 B f
( Parameters)1 517(2. Adjusting)1 548 2 720 840 t
10 R f
(Many computer systems have memory organized like this:)7 2339 1 970 996 t
cleartomark
saveobj restore
%%BeginGlobal
%
% Color and reverse video support for dpost. A call made to setcolor with two
% arguments implies reverse video printing.
%

/rgb {setrgbcolor} bind def
/hsb {sethsbcolor} bind def

/colordict 50 dict dup begin
	/red			{ 1 0 0 } def
	/green			{ 0 1 0 } def
	/blue			{ 0 0 1 } def
	/cyan			{ 0 1 1 } def
	/magenta		{ 1 0 1 } def
	/yellow			{ 1 1 0 } def
	/white			{ 1 1 1 } def
	/black			{ 0 0 0 } def
end def

/setcolor {
	counttomark 1 eq {
		dup colordict exch known not {pop /black} if
		colordict exch get exec setrgbcolor
	} if
	counttomark 2 eq {
		/backcolor exch def
		/textcolor exch def
		colordict backcolor known not colordict textcolor known not or {
			/backcolor colordict /black get def
			/textcolor colordict /white get def
		} if
		/backcolor colordict backcolor get def
		/textcolor colordict textcolor get def
		/dY1 0 def
		/dY2 0 def
		textcolor exec setrgbcolor
	} if
} bind def

/drawrvbox {
	/x2 exch def
	/x1 exch def

	currentpoint dup
	/y1 exch def
	/y2 exch def pop

	dY1 0 eq dY2 0 eq and {
		currentfont /FontBBox get aload pop
		currentfont /FontMatrix get dtransform /dY2 exch def pop
		currentfont /FontMatrix get dtransform /dY1 exch def pop
	} if

	/y1 y1 dY1 add def
	/y2 y2 dY2 add def

	backcolor exec setrgbcolor
	newpath
	x1 y1 moveto
	x2 y1 lineto
	x2 y2 lineto
	x1 y2 lineto
	closepath fill
	textcolor exec setrgbcolor
} bind def
%%EndGlobal
/saveobj save def
mark
gsave
newpath
1728 1302 m
/inpath true def
 0.9 setgray
10 R f
1728 1158 1728 1302 Dl
4032 1158 1728 1158 Dl
4032 1302 4032 1158 Dl
1728 1302 4032 1302 Dl
 gsave eofill grestore 0 setgray stroke
grestore
/inpath false def
10 R f
(Double Word)1 546 1 2607 1250 t
gsave
newpath
1728 1446 m
/inpath true def
 0.9 setgray
1728 1302 1728 1446 Dl
2880 1302 1728 1302 Dl
2880 1446 2880 1302 Dl
1728 1446 2880 1446 Dl
 gsave eofill grestore 0 setgray stroke
grestore
/inpath false def
10 R f
(Word)2191 1394 w
gsave
newpath
2880 1446 m
/inpath true def
 0.9 setgray
2880 1302 2880 1446 Dl
4032 1302 2880 1302 Dl
4032 1446 4032 1302 Dl
2880 1446 4032 1446 Dl
 gsave eofill grestore 0 setgray stroke
grestore
/inpath false def
10 R f
(Word)3343 1394 w
gsave
newpath
1728 1590 m
/inpath true def
 0.9 setgray
1728 1446 1728 1590 Dl
2304 1446 1728 1446 Dl
2304 1590 2304 1446 Dl
1728 1590 2304 1590 Dl
 gsave eofill grestore 0 setgray stroke
grestore
/inpath false def
10 R f
(Half Word)1 429 1 1802 1538 t
gsave
newpath
2304 1590 m
/inpath true def
 0.9 setgray
2304 1446 2304 1590 Dl
2880 1446 2304 1446 Dl
2880 1590 2880 1446 Dl
2304 1590 2880 1590 Dl
 gsave eofill grestore 0 setgray stroke
grestore
/inpath false def
10 R f
(Half Word)1 429 1 2378 1538 t
gsave
newpath
2880 1590 m
/inpath true def
 0.9 setgray
2880 1446 2880 1590 Dl
3456 1446 2880 1446 Dl
3456 1590 3456 1446 Dl
2880 1590 3456 1590 Dl
 gsave eofill grestore 0 setgray stroke
grestore
/inpath false def
10 R f
(Half Word)1 429 1 2954 1538 t
gsave
newpath
3456 1590 m
/inpath true def
 0.9 setgray
3456 1446 3456 1590 Dl
4032 1446 3456 1446 Dl
4032 1590 4032 1446 Dl
3456 1590 4032 1590 Dl
 gsave eofill grestore 0 setgray stroke
grestore
/inpath false def
10 R f
(Half Word)1 429 1 3530 1538 t
gsave
newpath
1728 1734 m
/inpath true def
 0.9 setgray
1728 1590 1728 1734 Dl
2016 1590 1728 1590 Dl
2016 1734 2016 1590 Dl
1728 1734 2016 1734 Dl
 gsave eofill grestore 0 setgray stroke
grestore
/inpath false def
10 R f
(Byte)1778 1682 w
gsave
newpath
2016 1734 m
/inpath true def
 0.9 setgray
2016 1590 2016 1734 Dl
2304 1590 2016 1590 Dl
2304 1734 2304 1590 Dl
2016 1734 2304 1734 Dl
 gsave eofill grestore 0 setgray stroke
grestore
/inpath false def
10 R f
(Byte)2066 1682 w
gsave
newpath
2304 1734 m
/inpath true def
 0.9 setgray
2304 1590 2304 1734 Dl
2592 1590 2304 1590 Dl
2592 1734 2592 1590 Dl
2304 1734 2592 1734 Dl
 gsave eofill grestore 0 setgray stroke
grestore
/inpath false def
10 R f
(Byte)2354 1682 w
gsave
newpath
2592 1734 m
/inpath true def
 0.9 setgray
2592 1590 2592 1734 Dl
2880 1590 2592 1590 Dl
2880 1734 2880 1590 Dl
2592 1734 2880 1734 Dl
 gsave eofill grestore 0 setgray stroke
grestore
/inpath false def
10 R f
(Byte)2642 1682 w
gsave
newpath
2880 1734 m
/inpath true def
 0.9 setgray
2880 1590 2880 1734 Dl
3168 1590 2880 1590 Dl
3168 1734 3168 1590 Dl
2880 1734 3168 1734 Dl
 gsave eofill grestore 0 setgray stroke
grestore
/inpath false def
10 R f
(Byte)2930 1682 w
gsave
newpath
3168 1734 m
/inpath true def
 0.9 setgray
3168 1590 3168 1734 Dl
3456 1590 3168 1590 Dl
3456 1734 3456 1590 Dl
3168 1734 3456 1734 Dl
 gsave eofill grestore 0 setgray stroke
grestore
/inpath false def
10 R f
(Byte)3218 1682 w
gsave
newpath
3456 1734 m
/inpath true def
 0.9 setgray
3456 1590 3456 1734 Dl
3744 1590 3456 1590 Dl
3744 1734 3744 1590 Dl
3456 1734 3744 1734 Dl
 gsave eofill grestore 0 setgray stroke
grestore
/inpath false def
10 R f
(Byte)3506 1682 w
gsave
newpath
3744 1734 m
/inpath true def
 0.9 setgray
3744 1590 3744 1734 Dl
4032 1590 3744 1590 Dl
4032 1734 4032 1590 Dl
3744 1734 4032 1734 Dl
 gsave eofill grestore 0 setgray stroke
grestore
/inpath false def
10 R f
(Byte)3794 1682 w
(The picture was drawn by this DFORMAT description:)7 2217 1 720 1932 t
9 CW f
(.begin dformat)1 756 1 1080 2102 t
(style fill on)2 702 1 1080 2212 t
(style bitwid 0.05)2 918 1 1080 2322 t
(style recspread 0)2 918 1 1080 2432 t
(style addr off)2 756 1 1080 2542 t
(style recht 0.2)2 810 1 1080 2652 t
(noname)1080 2762 w
(0-63 Double Word)2 864 1 1512 2872 t
(noname)1080 2982 w
(0-31 Word)1 486 1 1512 3092 t
(32-63 Word)1 540 1 1512 3202 t
(noname)1080 3312 w
(0-15 Half Word)2 756 1 1512 3422 t
(16-31 Half Word)2 810 1 1512 3532 t
(32-47 Half Word)2 810 1 1512 3642 t
(48-63 Half Word)2 810 1 1512 3752 t
(...)1134 3862 w
(.end)1080 3972 w
10 R f
(Setting the)1 433 1 720 4152 t
10 CW f
(fill)1180 4152 w
10 R f
(parameter to)1 503 1 1447 4152 t
10 CW f
(on)1977 4152 w
10 R f
( The)1 208(produces \256lled boxes.)2 880 2 2124 4152 t
10 CW f
(bitwid)3240 4152 w
10 R f
(parameter of 0.05 makes the 64-bit)5 1412 1 3628 4152 t
( The)1 213(record 3.2 inches wide.)3 952 2 720 4272 t
10 CW f
(recspread)1917 4272 w
10 R f
(parameter is the spread between records; the value of 0 causes)10 2551 1 2489 4272 t
( Assigning)1 464( no intervening space.)3 900(the records to be stacked with)5 1224 3 720 4392 t
10 CW f
(off)3341 4392 w
10 R f
(to)3554 4392 w
10 CW f
(addr)3665 4392 w
10 R f
(turns the addresses off; the)4 1102 1 3938 4392 t
(default assignment is)2 882 1 720 4512 t
10 CW f
(both)1646 4512 w
10 R f
(, but it can also be set to either)8 1370 1 1886 4512 t
10 CW f
(left)3299 4512 w
10 R f
(or)3582 4512 w
10 CW f
(right)3708 4512 w
10 R f
(. The)1 248 1 4008 4512 t
10 CW f
(recht)4299 4512 w
10 R f
(parameter)4642 4512 w
( records have the name)4 931( All)1 180(ensures that each record is depicted by a rectangle 0.2 inches high.)11 2679 3 720 4632 t
10 CW f
(noname)4538 4632 w
10 R f
(, so)1 142 1 4898 4632 t
(no text appears to the left of the records.)8 1610 1 720 4752 t
( picture, for)2 506( This)1 247( problems.)1 441(Diagrams with many long names in short \256elds can lead to esthetic)11 2876 4 970 4908 t
(instance,)720 5028 w
(CSR)1351 5318 w
1591 5190 1591 5406 Dl
3751 5190 1591 5190 Dl
3751 5406 3751 5190 Dl
1591 5406 3751 5406 Dl
(Reserved)2486 5318 w
6 R f
(31 8)1 2128 1 1607 5386 t
10 R f
3751 5190 3751 5406 Dl
3841 5190 3751 5190 Dl
3841 5406 3841 5190 Dl
3751 5406 3841 5406 Dl
3796 5526 3796 5406 Dl
(Lock)3575 5546 w
6 R f
(7)3781 5386 w
10 R f
3841 5190 3841 5406 Dl
3931 5190 3841 5190 Dl
3931 5406 3931 5190 Dl
3841 5406 3931 5406 Dl
3886 5646 3886 5406 Dl
(Word)3643 5666 w
6 R f
(6)3871 5386 w
10 R f
3931 5190 3931 5406 Dl
4021 5190 3931 5190 Dl
4021 5406 4021 5190 Dl
3931 5406 4021 5406 Dl
3976 5766 3976 5406 Dl
(Single)3704 5786 w
6 R f
(5)3961 5386 w
10 R f
4021 5190 4021 5406 Dl
4111 5190 4021 5190 Dl
4111 5406 4111 5190 Dl
4021 5406 4111 5406 Dl
4066 5526 4066 5406 Dl
(Wake)3818 5546 w
6 R f
(4)4051 5386 w
10 R f
4111 5190 4111 5406 Dl
4381 5190 4111 5190 Dl
4381 5406 4381 5190 Dl
4111 5406 4381 5406 Dl
4352 5886 4352 5406 Dl
(Max Transactions)1 718 1 3618 5906 t
6 R f
(3 1)1 238 1 4127 5386 t
10 R f
4381 5190 4381 5406 Dl
4471 5190 4381 5190 Dl
4471 5406 4471 5190 Dl
4381 5406 4471 5406 Dl
4426 5526 4426 5406 Dl
(Stop)4226 5546 w
6 R f
(0)4411 5386 w
10 R f
(was described by this input:)4 1116 1 720 6084 t
cleartomark
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%%EndPage: 3 5
%%Page: 4 6
/saveobj save def
mark
6 pagesetup
10 R f
(- 4 -)2 166 1 2797 480 t
9 CW f
(.begin dformat)1 756 1 1080 890 t
(style bitwid 0.125)2 972 1 1080 1000 t
(CSR)1080 1110 w
(31-8 Reserved)1 864 1 1512 1220 t
(7 Lock)1 648 1 1512 1330 t
(6 Word)1 648 1 1512 1440 t
(5 Single)1 756 1 1512 1550 t
(4 Wake)1 648 1 1512 1660 t
( Transactions)1 702(3-1 Max)1 594 2 1512 1770 t
(0 Stop)1 648 1 1512 1880 t
(.end)1080 1990 w
10 R f
( are placed in channels below the \256elds, with as many names as)12 2585(The \256eld names that do not \256t in the boxes)9 1735 2 720 2170 t
( lines that connect a \256eld description to its box may pass through other text.)14 3093( The)1 211(possible in each channel.)3 1016 3 720 2290 t
(If you prefer that lines not pass through text, then you can set the variable)14 2942 1 720 2410 t
9 CW f
(style linethrutext 0)2 1080 1 1080 2580 t
10 R f
(which results in this picture:)4 1133 1 720 2760 t
(CSR)1351 3050 w
1591 2922 1591 3138 Dl
3751 2922 1591 2922 Dl
3751 3138 3751 2922 Dl
1591 3138 3751 3138 Dl
(Reserved)2486 3050 w
6 R f
(31 8)1 2128 1 1607 3118 t
10 R f
3751 2922 3751 3138 Dl
3841 2922 3751 2922 Dl
3841 3138 3841 2922 Dl
3751 3138 3841 3138 Dl
3796 3258 3796 3138 Dl
(Lock)3575 3278 w
6 R f
(7)3781 3118 w
10 R f
3841 2922 3841 3138 Dl
3931 2922 3841 2922 Dl
3931 3138 3931 2922 Dl
3841 3138 3931 3138 Dl
3886 3378 3886 3138 Dl
(Word)3643 3398 w
6 R f
(6)3871 3118 w
10 R f
3931 2922 3931 3138 Dl
4021 2922 3931 2922 Dl
4021 3138 4021 2922 Dl
3931 3138 4021 3138 Dl
3976 3498 3976 3138 Dl
(Single)3704 3518 w
6 R f
(5)3961 3118 w
10 R f
4021 2922 4021 3138 Dl
4111 2922 4021 2922 Dl
4111 3138 4111 2922 Dl
4021 3138 4111 3138 Dl
4066 3618 4066 3138 Dl
(Wake)3818 3638 w
6 R f
(4)4051 3118 w
10 R f
4111 2922 4111 3138 Dl
4381 2922 4111 2922 Dl
4381 3138 4381 2922 Dl
4111 3138 4381 3138 Dl
4352 3739 4352 3138 Dl
(Max Transactions)1 718 1 3618 3759 t
6 R f
(3 1)1 238 1 4127 3118 t
10 R f
4381 2922 4381 3138 Dl
4471 2922 4381 2922 Dl
4471 3138 4471 2922 Dl
4381 3138 4471 3138 Dl
4426 3859 4426 3138 Dl
(Stop)4226 3879 w
6 R f
(0)4411 3118 w
10 R f
(This table contains a complete list of available parameters.)8 2343 1 970 4093 t
9 S f
(_ __________________________________________________________)1 2617 1 1571 4218 t
(_ __________________________________________________________)1 2617 1 1571 4238 t
9 R f
(I)2121 4338 w
7 R f
(NITIAL)2151 4338 w
9 R f
(N)1668 4393 w
7 R f
(AME)1733 4393 w
9 R f
(V)2126 4448 w
7 R f
(ALUE)2191 4448 w
9 R f
(E)3101 4393 w
7 R f
(XPLANATION)3156 4393 w
9 S f
(_ __________________________________________________________)1 2617 1 1571 4468 t
9 R f
( of 1 bit in inches)5 630( Width)1 419(bitwid 0.125)1 753 3 1571 4578 t
( of 1 character in inches)5 865( Width)1 464(charwid 0.07)1 708 3 1571 4688 t
( of boxes, in inches)4 700( Height)1 529(recht 0.3)1 663 3 1571 4798 t
( between boxes, in inches)4 925( Spread)1 489(recspread 0.15)1 708 3 1571 4908 t
( of text lines below box, in inches)7 1219( Height)1 439(textht 0.167)1 753 3 1571 5018 t
( of line from right of box, in inches)8 1272( Distance)1 554(linedisp 0.04)1 708 3 1571 5128 t
( if lines may pass through text)6 1088( Nonzero)1 662(linethrutext 1)1 595 3 1571 5238 t
( of addresses above box, in inches)6 1231( Height)1 439(addrht 0.055)1 753 3 1571 5348 t
( point size for printing bits \(0)6 1058( Delta)1 547(addrdelta 4)1 595 3 1571 5458 t
9 S f
(\243)3778 5458 w
9 I f
(d)3835 5458 w
9 S f
(\243)3887 5458 w
9 R f
(9\))3944 5458 w
( to print addresses \(left, right, both, off\))7 1430( Where)1 477(addr both)1 710 3 1571 5568 t
( to \256ll boxes, off for un\256lled boxes)7 1259( On)1 402(\256ll off)1 655 3 1571 5678 t
9 S f
( \347)1 -2135(_ __________________________________________________________)1 2617 2 1571 5698 t
(\347)2053 5678 w
(\347)2053 5588 w
(\347)2053 5498 w
(\347)2053 5408 w
(\347)2053 5318 w
(\347)2053 5228 w
(\347)2053 5138 w
(\347)2053 5048 w
(\347)2053 4958 w
(\347)2053 4868 w
(\347)2053 4778 w
(\347)2053 4688 w
(\347)2053 4598 w
(\347)2053 4508 w
(\347)2053 4418 w
(\347)2053 4328 w
(\347)2450 5698 w
(\347)2450 5678 w
(\347)2450 5588 w
(\347)2450 5498 w
(\347)2450 5408 w
(\347)2450 5318 w
(\347)2450 5228 w
(\347)2450 5138 w
(\347)2450 5048 w
(\347)2450 4958 w
(\347)2450 4868 w
(\347)2450 4778 w
(\347)2450 4688 w
(\347)2450 4598 w
(\347)2450 4508 w
(\347)2450 4418 w
(\347)2450 4328 w
10 R f
(The variables)1 552 1 720 5873 t
10 CW f
(addrht)1309 5873 w
10 R f
(and)1706 5873 w
10 CW f
(addrdelta)1887 5873 w
10 R f
( corners of the \256eld boxes;)5 1127(control the addresses printed at the)5 1449 2 2464 5873 t
10 CW f
(addrht)720 5993 w
10 R f
(is their height in inches above the bottom of the box and)11 2361 1 1115 5993 t
10 CW f
(addrdelta)3511 5993 w
10 R f
( point)1 240(is the decrease in)3 714 2 4086 5993 t
( size \(so if it has the value 4 and the point size is 10, the addresses will be printed)19 3303(size from the default font)4 1017 2 720 6113 t
( variable)1 348( The)1 207(in 6-point\).)1 452 3 720 6233 t
10 CW f
(charwid)1754 6233 w
10 R f
( a)1 70(is the width of an average character, which is used to decide whether)12 2769 2 2201 6233 t
( is)1 102(text string will \256t in its box \(0.07 inches is about right for 10-point Times Roman, but any such value)19 4218 2 720 6353 t
( over\257ow, it is placed beneath)5 1198( text does)2 385( If)1 117(only an approximation; notice the widths of MMMMM and iiiii\).)9 2620 4 720 6473 t
(the boxes in channels)3 893 1 720 6593 t
10 CW f
(textht)1651 6593 w
10 R f
(inches high, and vertical lines are drawn down from)8 2180 1 2049 6593 t
10 CW f
(linedisp)4267 6593 w
10 R f
(inches)4785 6593 w
( If)1 134(from the right end of the box.)6 1287 2 720 6713 t
10 CW f
(linethrutext)2184 6713 w
10 R f
( not pass)2 384(is zero, then the connecting lines should)6 1709 2 2947 6713 t
( If)1 121( text.)1 205(through other)1 545 3 720 6833 t
10 CW f
(fill)1621 6833 w
10 R f
(is)1891 6833 w
10 CW f
(on)1988 6833 w
10 R f
( adjust the darkness of \256lled)5 1149( To)1 166(, then records are drawn as \256lled boxes.)7 1617 3 2108 6833 t
(boxes, one passes an assignment through to PIC:)7 1949 1 720 6953 t
9 CW f
(pic fillval = 0.9)3 918 1 1080 7123 t
10 R f
(Lower values produce darker backgrounds.)4 1725 1 720 7303 t
cleartomark
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%%EndPage: 4 6
%%Page: 5 7
/saveobj save def
mark
7 pagesetup
10 R f
(- 5 -)2 166 1 2797 480 t
( allows you to)3 603( This)1 241( from one DFORMAT display to another.)6 1746(The values of variables are retained)5 1480 4 970 840 t
( allow you to use a different style)7 1355( To)1 165(de\256ne a style for a document by setting all values in the \256rst display.)13 2800 3 720 960 t
( old value of the)4 665( The)1 209( new value is assigned.)4 934(in a single picture, the old value of a variable is stored when a)13 2512 4 720 1080 t
(variable)720 1200 w
10 CW f
(bitwid)1066 1200 w
10 R f
(, for instance, may be restored by an assignment of the form)11 2398 1 1426 1200 t
9 CW f
(style bitwid reset)2 972 1 1080 1370 t
10 R f
( is an)2 219( single integer 4)3 650( The)1 208(The address of a \256eld is typically speci\256ed by a pair of integers, as in 4-7.)15 2993 4 970 1586 t
( two formats account for most \256elds, but two other kinds of)11 2398( These)1 290( range 4-4.)2 433(abbreviation for the single-bit)3 1199 4 720 1706 t
(speci\256cations support more exotic \256elds:)4 1638 1 720 1826 t
9 S f
(_ _________________________________)1 1492 1 2134 1951 t
(_ _________________________________)1 1492 1 2134 1971 t
9 R f
(F)2134 2071 w
7 R f
(ORMAT)2184 2071 w
9 R f
(I)2798 2071 w
7 R f
(NTERPRETATION)2828 2071 w
9 S f
(_ _________________________________)1 1492 1 2134 2091 t
9 I f
(i)2134 2201 w
9 R f
(Field)2571 2201 w
9 I f
(i)2779 2201 w
9 R f
(..)2804 2201 w
9 I f
(i)2850 2201 w
9 R f
(, width 1)2 319 1 2875 2201 t
9 I f
(i)2134 2311 w
9 R f
(-)2159 2311 w
9 I f
(j)2189 2311 w
9 R f
(Field)2571 2311 w
9 I f
(i)2779 2311 w
9 R f
(..)2804 2311 w
9 I f
(j)2850 2311 w
9 R f
(, width)1 251 1 2875 2311 t
9 I f
(j)3149 2311 w
9 S f
(-)3189 2311 w
9 I f
(i)3254 2311 w
9 S f
(+)3301 2311 w
9 R f
(1)3366 2311 w
9 I f
(l)2134 2421 w
9 R f
(-)2159 2421 w
9 I f
(r)2189 2421 w
9 R f
(-)2224 2421 w
9 I f
(w)2254 2421 w
9 R f
(Field)2571 2421 w
9 I f
(l)2779 2421 w
9 R f
(..)2804 2421 w
9 I f
(r)2850 2421 w
9 R f
(, width)1 251 1 2885 2421 t
9 I f
(w)3159 2421 w
(l)2134 2531 w
9 R f
(-)2159 2531 w
9 I f
(r)2189 2531 w
9 R f
(-)2224 2531 w
9 I f
(w)2254 2531 w
9 R f
(-)2314 2531 w
9 I f
(t)2344 2531 w
9 R f
(Field)2571 2531 w
9 I f
(l)2779 2531 w
9 R f
(..)2804 2531 w
9 I f
(r)2850 2531 w
9 R f
(, width)1 251 1 2885 2531 t
9 I f
(w)3159 2531 w
9 R f
(, box type)2 359 1 3219 2531 t
9 I f
(t)3601 2531 w
9 S f
( \347)1 -1123(_ _________________________________)1 1492 2 2134 2551 t
(\347)2503 2511 w
(\347)2503 2421 w
(\347)2503 2331 w
(\347)2503 2241 w
(\347)2503 2151 w
(\347)2503 2061 w
10 R f
(The variables)1 543 1 720 2726 t
10 I f
(i)1291 2726 w
10 R f
(and)1347 2726 w
10 I f
(j)1519 2726 w
10 R f
(must be integers,)2 686 1 1575 2726 t
10 I f
(w)2289 2726 w
10 R f
(may be a real, and)4 744 1 2384 2726 t
10 I f
(l)3157 2726 w
10 R f
(and)3214 2726 w
10 I f
(r)3387 2726 w
10 R f
( the third format, the)4 840( Under)1 303(are strings.)1 442 3 3455 2726 t
(\256eld speci\256ed by)2 683 1 720 2846 t
9 CW f
(lo-hi-3)1080 3016 w
10 R f
( a)1 73( the fourth format, each \256eld may be given)8 1729( Under)1 302(has left index ``lo'', right index ``hi'' and width 3 bits.)10 2216 4 720 3196 t
( and ``dash'' are acceptable abbreviations\).)5 1776(type of ``dotted'' or ``dashed'' or ``solid'' \(as in PIC, ``dot'')10 2544 2 720 3316 t
(These conventions are illustrated in this nonsense \256gure)7 2239 1 720 3436 t
1584 3598 1584 3814 Dl
1800 3598 1584 3598 Dl
1800 3814 1800 3598 Dl
1584 3814 1800 3814 Dl
(A)1656 3726 w
6 R f
(1)1677 3794 w
10 R f
1800 3598 1800 3814 Dl
2232 3598 1800 3598 Dl
2232 3814 2232 3598 Dl
1800 3814 2232 3814 Dl
(B)1983 3726 w
6 R f
(2 3)1 400 1 1816 3794 t
10 R f
2232 3598 2232 3814 Dl
2880 3598 2232 3598 Dl
2880 3814 2880 3598 Dl
2232 3814 2880 3814 Dl
(C)2523 3726 w
6 R f
(lo hi)1 616 1 2248 3794 t
10 R f
(...)3167 3726 w
3564 3814 3528 3814 Dl
3640 3814 3604 3814 Dl
3717 3814 3681 3814 Dl
3793 3814 3757 3814 Dl
3870 3814 3834 3814 Dl
3946 3814 3910 3814 Dl
4023 3814 3987 3814 Dl
4099 3814 4063 3814 Dl
4176 3814 4140 3814 Dl
4176 3778 4176 3814 Dl
4176 3718 4176 3754 Dl
4176 3657 4176 3693 Dl
4176 3598 4176 3634 Dl
4140 3598 4176 3598 Dl
4063 3598 4099 3598 Dl
3987 3598 4023 3598 Dl
3910 3598 3946 3598 Dl
3834 3598 3870 3598 Dl
3757 3598 3793 3598 Dl
3681 3598 3717 3598 Dl
3604 3598 3640 3598 Dl
3528 3598 3564 3598 Dl
3528 3634 3528 3598 Dl
3528 3693 3528 3657 Dl
3528 3754 3528 3718 Dl
3528 3814 3528 3778 Dl
(D)3816 3726 w
6 R f
(88 90)1 616 1 3544 3794 t
10 R f
(described by:)1 535 1 720 4012 t
9 CW f
(.begin dformat)1 756 1 1080 4182 t
(style bitwid .3)2 810 1 1080 4292 t
(noname)1080 4402 w
(1 A)1 162 1 1512 4512 t
(2-3 B)1 270 1 1512 4622 t
(lo-hi-3 C)1 486 1 1512 4732 t
(--3-invis ...)1 702 1 1512 4842 t
(88-90-3-dash D)1 756 1 1512 4952 t
(.end)1080 5062 w
10 R f
( have to resort to vile trof-)6 1054(Spaces are not allowed in the indices, so if you want spaces in the output you will)16 3266 2 720 5242 t
(fery such as using ``)4 813 1 720 5362 t
10 CW f
(\\|\\|)1533 5362 w
10 R f
( soon see that elaborate uses of this)7 1406( We'll)1 277( adjacent half spaces.)3 847('' to represent two)3 737 4 1773 5362 t
(notation are somewhat clumsy, but they do get they job done.)10 2459 1 720 5482 t
( \256nal features that are useful for connecting \256elds in one record to \256elds in)14 3216(DFORMAT has two)2 854 2 970 5638 t
( picture)1 302( This)1 228(another record: \256eld names and the ability to pass commands through to PIC.)12 3089 3 720 5758 t
(Record 1)1 363 1 1592 6048 t
2005 5920 2005 6136 Dl
3157 5920 2005 5920 Dl
3157 6136 3157 5920 Dl
2005 6136 3157 6136 Dl
(Field 1)1 281 1 2441 6048 t
6 R f
(1 8)1 1120 1 2021 6116 t
10 R f
(Record 2)1 363 1 1592 6372 t
2005 6244 2005 6460 Dl
4309 6244 2005 6244 Dl
4309 6460 4309 6244 Dl
2005 6460 4309 6460 Dl
(Field 2)1 281 1 3017 6372 t
6 R f
(1 16)1 2272 1 2021 6440 t
7 R f
(.)1995 6139 w
(.)1995 6175 w
(.)1995 6211 w
(.)1995 6247 w
(.)3147 6139 w
(.)3183 6142 w
(.)3219 6145 w
(.)3255 6149 w
(.)3291 6152 w
(.)3327 6155 w
(.)3363 6159 w
(.)3399 6162 w
(.)3435 6166 w
(.)3471 6169 w
(.)3507 6172 w
(.)3543 6176 w
(.)3579 6179 w
(.)3615 6182 w
(.)3651 6186 w
(.)3687 6189 w
(.)3723 6193 w
(.)3759 6196 w
(.)3795 6199 w
(.)3831 6203 w
(.)3867 6206 w
(.)3903 6209 w
(.)3939 6213 w
(.)3975 6216 w
(.)4011 6220 w
(.)4047 6223 w
(.)4083 6226 w
(.)4119 6230 w
(.)4155 6233 w
(.)4191 6236 w
(.)4227 6240 w
(.)4263 6243 w
(.)4299 6247 w
10 R f
(was produced by this description.)4 1340 1 720 6658 t
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8 pagesetup
10 R f
(- 6 -)2 166 1 2797 480 t
9 CW f
(.begin dformat)1 756 1 1080 890 t
(style bitwid .2)2 810 1 1080 1000 t
(Record 1)1 432 1 1080 1110 t
( Field 1)2 432(F1: 1-8)1 432 2 1242 1220 t
(Record 2)1 432 1 1080 1330 t
( Field 2)2 432(F2: 1-16)1 486 2 1242 1440 t
(pic line dotted from F1.sw to F2.nw)6 1890 1 1080 1550 t
(pic line dotted from F1.se to F2.ne)6 1890 1 1080 1660 t
(.end)1080 1770 w
10 R f
( such a line ends in a colon, it is interpreted as a)12 2007(Field lines have leading white space; if the \256rst string in)10 2313 2 720 1950 t
( the \256rst \256eld)3 537( If)1 118( with capital letters\).)3 827(name of the corresponding PIC box \(recall that PIC names must begin)11 2838 4 720 2070 t
( We'll)1 291( line is the word ``pic'', then the rest of the line is passed through to be processed by PIC.)19 3847(on a)1 182 3 720 2190 t
(shortly see an application of these mechanisms.)6 1900 1 720 2310 t
10 B f
( Examples)1 442(3. Additional)1 582 2 720 2550 t
10 R f
( be used to prepare overhead transparencies and other material that requires oversize)12 3415(DFORMAT can)1 655 2 970 2706 t
( large version of two System/360 instruction formats)7 2107(text. This)1 403 2 720 2826 t
20 R f
(RR)1054 3244 w
1422 2988 1422 3420 Dl
2286 2988 1422 2988 Dl
2286 3420 2286 2988 Dl
1422 3420 2286 3420 Dl
(Opcode)1544 3244 w
12 R f
(0)1455 3388 w
20 R f
2286 2988 2286 3420 Dl
2718 2988 2286 2988 Dl
2718 3420 2718 2988 Dl
2286 3420 2718 3420 Dl
(R1)2385 3244 w
12 R f
(8)2319 3388 w
20 R f
2718 2988 2718 3420 Dl
3150 2988 2718 2988 Dl
3150 3420 3150 2988 Dl
2718 3420 3150 3420 Dl
(R2)2817 3244 w
12 R f
(12)2751 3388 w
20 R f
(RX)1044 3892 w
1422 3636 1422 4068 Dl
2286 3636 1422 3636 Dl
2286 4068 2286 3636 Dl
1422 4068 2286 4068 Dl
(Opcode)1544 3892 w
12 R f
(0)1455 4036 w
20 R f
2286 3636 2286 4068 Dl
2718 3636 2286 3636 Dl
2718 4068 2718 3636 Dl
2286 4068 2718 4068 Dl
(R1)2385 3892 w
12 R f
(8)2319 4036 w
20 R f
2718 3636 2718 4068 Dl
3150 3636 2718 3636 Dl
3150 4068 3150 3636 Dl
2718 4068 3150 4068 Dl
(X2)2812 3892 w
12 R f
(12)2751 4036 w
20 R f
3150 3636 3150 4068 Dl
3582 3636 3150 3636 Dl
3582 4068 3582 3636 Dl
3150 4068 3582 4068 Dl
(B2)3249 3892 w
12 R f
(16)3183 4036 w
20 R f
3582 3636 3582 4068 Dl
4878 3636 3582 3636 Dl
4878 4068 4878 3636 Dl
3582 4068 4878 4068 Dl
(D2)4108 3892 w
12 R f
(20)3615 4036 w
10 R f
(was described in this form:)4 1082 1 720 4266 t
9 CW f
(.ps +10)1 378 1 1080 4436 t
(.begin dformat)1 756 1 1080 4546 t
(style bitwid 0.15)2 918 1 1080 4656 t
(style recht 0.6)2 810 1 1080 4766 t
(style recspread 0.3)2 1026 1 1080 4876 t
(style addrdelta 8)2 918 1 1080 4986 t
(style addrht 0.1)2 864 1 1080 5096 t
(style addr left)2 810 1 1080 5206 t
(RR)1080 5316 w
(0-7 Opcode)1 540 1 1512 5426 t
(8-11 R1)1 378 1 1512 5536 t
(12-15 R2)1 432 1 1512 5646 t
(RX)1080 5756 w
(0-7 Opcode)1 540 1 1512 5866 t
(8-11 R1)1 378 1 1512 5976 t
(12-15 X2)1 432 1 1512 6086 t
(16-19 B2)1 432 1 1512 6196 t
(20-31 D2)1 432 1 1512 6306 t
(.end)1080 6416 w
(.ps -10)1 378 1 1080 6526 t
10 R f
(The TROFF)1 506 1 720 6706 t
10 CW f
(.ps +10)1 434 1 1265 6706 t
10 R f
( series of)2 390( The)1 220(command increments the point size from 10 points to 20 points.)10 2692 3 1738 6706 t
10 CW f
(style)720 6826 w
10 R f
( started by doubling)3 806( \(I)1 119( the parameters to be more appropriate for this larger format.)10 2454(commands sets)1 612 4 1049 6826 t
( The)1 207( them to look a little better.\))6 1131(any parameter that ``looked funny'' in the regular form, and then twiddled)11 2982 3 720 6946 t
(assignment of)1 566 1 720 7066 t
10 CW f
(left)1318 7066 w
10 R f
(to the parameter)2 662 1 1590 7066 t
10 CW f
(addr)2284 7066 w
10 R f
(causes only the left bit addresses to be printed \(printing both)10 2484 1 2556 7066 t
(looks a little crowded\).)3 921 1 720 7186 t
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9 pagesetup
10 R f
(- 7 -)2 166 1 2797 480 t
( represents the most)3 832( It)1 123( a data communications network.)4 1371(The next \256gure shows the packets used in)7 1744 4 970 840 t
(complex kind of \256gure that can \(well, more accurately, should\) be drawn with DFORMAT.)13 3655 1 720 960 t
806 1122 806 1338 Dl
1727 1122 806 1122 Dl
1727 1338 1727 1122 Dl
806 1338 1727 1338 Dl
(Frame)1139 1250 w
1727 1122 1727 1338 Dl
2648 1122 1727 1122 Dl
2649 1338 2649 1122 Dl
1728 1338 2649 1338 Dl
(Frame)2061 1250 w
2649 1122 2649 1338 Dl
3570 1122 2649 1122 Dl
3570 1338 3570 1122 Dl
2649 1338 3570 1338 Dl
(Frame)2983 1250 w
3570 1122 3570 1338 Dl
4491 1122 3570 1122 Dl
4492 1338 4492 1122 Dl
3571 1338 4492 1338 Dl
(Frame)3904 1250 w
4528 1338 4492 1338 Dl
4598 1338 4562 1338 Dl
4670 1338 4634 1338 Dl
4740 1338 4704 1338 Dl
4811 1338 4775 1338 Dl
4882 1338 4846 1338 Dl
4953 1338 4917 1338 Dl
4953 1302 4953 1338 Dl
4953 1242 4953 1278 Dl
4953 1181 4953 1217 Dl
4953 1122 4953 1158 Dl
4917 1122 4953 1122 Dl
4846 1122 4882 1122 Dl
4775 1122 4811 1122 Dl
4704 1122 4740 1122 Dl
4634 1122 4670 1122 Dl
4562 1122 4598 1122 Dl
4492 1122 4528 1122 Dl
4492 1158 4492 1122 Dl
4492 1217 4492 1181 Dl
4492 1278 4492 1242 Dl
4492 1338 4492 1302 Dl
(...)4685 1250 w
806 1554 806 1770 Dl
1266 1554 806 1554 Dl
1266 1770 1266 1554 Dl
806 1770 1266 1770 Dl
(Flags)928 1682 w
6 R f
(8)822 1750 w
10 R f
1266 1554 1266 1770 Dl
1726 1554 1266 1554 Dl
1727 1770 1727 1554 Dl
1267 1770 1727 1770 Dl
(Status)1375 1682 w
6 R f
(8)1282 1750 w
10 R f
1727 1554 1727 1770 Dl
2187 1554 1727 1554 Dl
2188 1770 2188 1554 Dl
1728 1770 2188 1770 Dl
(Chunk)1798 1682 w
7 R f
(1)2076 1702 w
10 R f
2188 1554 2188 1770 Dl
2648 1554 2188 1554 Dl
2649 1770 2649 1554 Dl
2189 1770 2649 1770 Dl
(Chunk)2258 1682 w
7 R f
(2)2536 1702 w
10 R f
2685 1770 2649 1770 Dl
2755 1770 2719 1770 Dl
2827 1770 2791 1770 Dl
2897 1770 2861 1770 Dl
2968 1770 2932 1770 Dl
3039 1770 3003 1770 Dl
3110 1770 3074 1770 Dl
3110 1734 3110 1770 Dl
3110 1674 3110 1710 Dl
3110 1613 3110 1649 Dl
3110 1554 3110 1590 Dl
3074 1554 3110 1554 Dl
3003 1554 3039 1554 Dl
2932 1554 2968 1554 Dl
2861 1554 2897 1554 Dl
2791 1554 2827 1554 Dl
2719 1554 2755 1554 Dl
2649 1554 2685 1554 Dl
2649 1590 2649 1554 Dl
2649 1649 2649 1613 Dl
2649 1710 2649 1674 Dl
2649 1770 2649 1734 Dl
(...)2842 1682 w
3110 1554 3110 1770 Dl
3570 1554 3110 1554 Dl
3570 1770 3570 1554 Dl
3110 1770 3570 1770 Dl
(Chunk)3172 1682 w
7 I f
(m)3450 1702 w
10 R f
3570 1554 3570 1770 Dl
4491 1554 3570 1554 Dl
4492 1770 4492 1554 Dl
3571 1770 4492 1770 Dl
(CRC)3931 1682 w
6 R f
(16)3586 1750 w
10 R f
4492 1554 4492 1770 Dl
4952 1554 4492 1554 Dl
4953 1770 4953 1554 Dl
4493 1770 4953 1770 Dl
(Flags)4614 1682 w
6 R f
(8)4508 1750 w
10 R f
806 1986 806 2202 Dl
1266 1986 806 1986 Dl
1266 2202 1266 1986 Dl
806 2202 1266 2202 Dl
(Data)915 2114 w
7 R f
(1)1114 2134 w
6 R f
(8)822 2182 w
10 R f
1266 1986 1266 2202 Dl
1726 1986 1266 1986 Dl
1727 2202 1727 1986 Dl
1267 2202 1727 2202 Dl
(Data)1376 2114 w
7 R f
(2)1575 2134 w
6 R f
(8)1282 2182 w
10 R f
1727 1986 1727 2202 Dl
2187 1986 1727 1986 Dl
2188 2202 2188 1986 Dl
1728 2202 2188 2202 Dl
(Data)1837 2114 w
7 R f
(3)2036 2134 w
6 R f
(8)1743 2182 w
10 R f
2188 1986 2188 2202 Dl
2648 1986 2188 1986 Dl
2649 2202 2649 1986 Dl
2189 2202 2649 2202 Dl
(Data)2297 2114 w
7 R f
(4)2496 2134 w
6 R f
(8)2204 2182 w
10 R f
2685 2202 2649 2202 Dl
2755 2202 2719 2202 Dl
2827 2202 2791 2202 Dl
2897 2202 2861 2202 Dl
2968 2202 2932 2202 Dl
3039 2202 3003 2202 Dl
3110 2202 3074 2202 Dl
3110 2166 3110 2202 Dl
3110 2106 3110 2142 Dl
3110 2045 3110 2081 Dl
3110 1986 3110 2022 Dl
3074 1986 3110 1986 Dl
3003 1986 3039 1986 Dl
2932 1986 2968 1986 Dl
2861 1986 2897 1986 Dl
2791 1986 2827 1986 Dl
2719 1986 2755 1986 Dl
2649 1986 2685 1986 Dl
2649 2022 2649 1986 Dl
2649 2081 2649 2045 Dl
2649 2142 2649 2106 Dl
2649 2202 2649 2166 Dl
(...)2842 2114 w
3110 1986 3110 2202 Dl
3570 1986 3110 1986 Dl
3570 2202 3570 1986 Dl
3110 2202 3570 2202 Dl
(Data)3169 2114 w
7 I f
(n)3368 2134 w
7 S f
(-)3419 2134 w
7 R f
(1)3469 2134 w
6 R f
(8)3126 2182 w
10 R f
3570 1986 3570 2202 Dl
4030 1986 3570 1986 Dl
4031 2202 4031 1986 Dl
3571 2202 4031 2202 Dl
(Data)3680 2114 w
7 I f
(n)3879 2134 w
6 R f
(8)3586 2182 w
10 R f
4031 1986 4031 2202 Dl
4376 1986 4031 1986 Dl
4377 2202 4377 1986 Dl
4032 2202 4377 2202 Dl
(Length)4063 2114 w
6 R f
(6)4047 2182 w
10 R f
4377 1986 4377 2202 Dl
4953 1986 4377 1986 Dl
4953 2202 4953 1986 Dl
4377 2202 4953 2202 Dl
(Channel #)1 408 1 4461 2114 t
6 R f
(10)4393 2182 w
7 R f
(.)2639 1341 w
(.)2603 1345 w
(.)2568 1349 w
(.)2532 1353 w
(.)2497 1357 w
(.)2462 1361 w
(.)2426 1366 w
(.)2390 1369 w
(.)2355 1374 w
(.)2320 1378 w
(.)2284 1382 w
(.)2248 1386 w
(.)2213 1390 w
(.)2178 1395 w
(.)2143 1399 w
(.)2107 1403 w
(.)2071 1407 w
(.)2036 1411 w
(.)2001 1415 w
(.)1966 1420 w
(.)1930 1423 w
(.)1894 1428 w
(.)1859 1432 w
(.)1824 1436 w
(.)1788 1440 w
(.)1752 1444 w
(.)1717 1449 w
(.)1682 1453 w
(.)1647 1457 w
(.)1611 1461 w
(.)1575 1465 w
(.)1540 1469 w
(.)1505 1474 w
(.)1469 1477 w
(.)1433 1482 w
(.)1398 1486 w
(.)1363 1490 w
(.)1327 1494 w
(.)1292 1498 w
(.)1256 1503 w
(.)1221 1507 w
(.)1186 1511 w
(.)1150 1515 w
(.)1114 1519 w
(.)1079 1523 w
(.)1044 1528 w
(.)1008 1531 w
(.)973 1536 w
(.)937 1540 w
(.)902 1544 w
(.)866 1548 w
(.)831 1552 w
(.)796 1557 w
(.)3560 1341 w
(.)3596 1346 w
(.)3631 1351 w
(.)3667 1357 w
(.)3702 1363 w
(.)3737 1368 w
(.)3773 1374 w
(.)3809 1379 w
(.)3844 1385 w
(.)3879 1390 w
(.)3915 1396 w
(.)3951 1402 w
(.)3986 1407 w
(.)4021 1413 w
(.)4056 1418 w
(.)4092 1423 w
(.)4128 1429 w
(.)4163 1435 w
(.)4198 1440 w
(.)4234 1446 w
(.)4270 1451 w
(.)4305 1457 w
(.)4340 1462 w
(.)4375 1468 w
(.)4411 1474 w
(.)4447 1479 w
(.)4482 1485 w
(.)4517 1490 w
(.)4552 1495 w
(.)4588 1501 w
(.)4624 1507 w
(.)4659 1512 w
(.)4694 1518 w
(.)4730 1523 w
(.)4766 1529 w
(.)4801 1534 w
(.)4836 1540 w
(.)4872 1546 w
(.)4907 1551 w
(.)4943 1557 w
(.)2178 1773 w
(.)2143 1778 w
(.)2107 1783 w
(.)2071 1789 w
(.)2036 1795 w
(.)2001 1800 w
(.)1966 1806 w
(.)1930 1811 w
(.)1894 1817 w
(.)1859 1822 w
(.)1824 1828 w
(.)1788 1834 w
(.)1752 1839 w
(.)1717 1845 w
(.)1682 1850 w
(.)1647 1855 w
(.)1611 1861 w
(.)1575 1867 w
(.)1540 1872 w
(.)1505 1878 w
(.)1469 1883 w
(.)1433 1889 w
(.)1398 1894 w
(.)1363 1900 w
(.)1327 1906 w
(.)1292 1911 w
(.)1256 1917 w
(.)1221 1922 w
(.)1186 1927 w
(.)1150 1933 w
(.)1114 1939 w
(.)1079 1944 w
(.)1044 1950 w
(.)1008 1955 w
(.)973 1961 w
(.)937 1966 w
(.)902 1972 w
(.)866 1978 w
(.)831 1983 w
(.)796 1989 w
(.)2639 1773 w
(.)2675 1776 w
(.)2711 1779 w
(.)2747 1783 w
(.)2783 1786 w
(.)2819 1789 w
(.)2855 1793 w
(.)2891 1796 w
(.)2927 1800 w
(.)2963 1803 w
(.)2999 1806 w
(.)3035 1810 w
(.)3071 1813 w
(.)3107 1816 w
(.)3143 1820 w
(.)3179 1823 w
(.)3215 1827 w
(.)3251 1830 w
(.)3287 1833 w
(.)3323 1837 w
(.)3359 1840 w
(.)3395 1843 w
(.)3431 1847 w
(.)3467 1850 w
(.)3503 1854 w
(.)3539 1857 w
(.)3575 1860 w
(.)3611 1864 w
(.)3647 1867 w
(.)3683 1870 w
(.)3719 1874 w
(.)3755 1877 w
(.)3791 1881 w
(.)3827 1884 w
(.)3863 1887 w
(.)3899 1891 w
(.)3935 1894 w
(.)3971 1897 w
(.)4007 1901 w
(.)4043 1904 w
(.)4079 1908 w
(.)4115 1911 w
(.)4151 1914 w
(.)4187 1918 w
(.)4223 1921 w
(.)4259 1924 w
(.)4295 1928 w
(.)4331 1931 w
(.)4367 1935 w
(.)4403 1938 w
(.)4439 1941 w
(.)4475 1945 w
(.)4511 1948 w
(.)4547 1951 w
(.)4583 1955 w
(.)4619 1958 w
(.)4655 1962 w
(.)4691 1965 w
(.)4727 1968 w
(.)4763 1972 w
(.)4799 1975 w
(.)4835 1978 w
(.)4871 1982 w
(.)4907 1985 w
(.)4943 1989 w
10 R f
(The description uses complex \256eld descriptions, named \256elds, PIC pass-throughs, and embedded EQN.)12 4129 1 720 2400 t
9 CW f
(.begin dformat)1 756 1 1080 2570 t
(style bitwid 0.08)2 918 1 1080 2680 t
(style charwid 0)2 810 1 1080 2790 t
(style recspread 0.3)2 1026 1 1080 2900 t
(noname)1080 3010 w
(--16 Frame)1 540 1 1512 3120 t
(--16 Frame)1 540 1 1512 3230 t
( Frame)1 324(A1: --16)1 540 2 1188 3340 t
(--16 Frame)1 540 1 1512 3450 t
(--8-dash ...)1 648 1 1512 3560 t
(noname)1080 3670 w
( Flags)1 324(A2: 8--8)1 540 2 1188 3780 t
(8--8 Status)1 594 1 1512 3890 t
(--8 @roman Chunk sub 1@)4 1242 1 1512 4000 t
( @roman Chunk sub 2@)4 1080(B1: --8)1 486 2 1188 4110 t
(--8-dash ...)1 648 1 1512 4220 t
(--8 @roman Chunk sub m@)4 1242 1 1512 4330 t
(16--16 CRC)1 540 1 1512 4440 t
( Flags)1 324(A3: 8--8)1 540 2 1188 4550 t
(noname)1080 4660 w
( @roman Data sub 1@)4 1026(B2: 8--8)1 540 2 1188 4770 t
(8--8 @roman Data sub 2@)4 1242 1 1512 4880 t
(8--8 @roman Data sub 3@)4 1242 1 1512 4990 t
(8--8 @roman Data sub 4@)4 1242 1 1512 5100 t
(--8-dash ...)1 648 1 1512 5210 t
(8--8 @roman Data sub {n-1}@)4 1458 1 1512 5320 t
(8--8 @roman Data sub n@)4 1242 1 1512 5430 t
(6--6 Length)1 594 1 1512 5540 t
( Channel #)2 540(B3: 10--10)1 648 2 1188 5650 t
(pic line dotted from A1.sw to A2.nw)6 1890 1 1080 5760 t
(pic line dotted from A1.se to A3.ne)6 1890 1 1080 5870 t
(pic line dotted from B1.sw to B2.nw)6 1890 1 1080 5980 t
(pic line dotted from B1.se to B3.ne)6 1890 1 1080 6090 t
(.end)1080 6200 w
10 B f
( Implementation)1 708(4. DFORMAT)1 641 2 720 6500 t
10 R f
( will rarely need material beyond that contained in Section 1,)10 2508(I hope that many users of DFORMAT)6 1562 2 970 6656 t
( are no addi-)3 516( you want to go even further, there)7 1422( If)1 122(and that Sections 2 and 3 cover most of the exceptions.)10 2260 4 720 6776 t
( section begins by describing a)5 1234( This)1 229( must modify the program.)4 1073(tional bells and whistles in DFORMAT; you)6 1784 4 720 6896 t
(miniature version of the program and then presents the entire source code.)11 2960 1 720 7016 t
( not support parameters and)4 1157( does)1 219( It)1 122(This trivial version of DFORMAT draws simple data formats.)8 2572 4 970 7172 t
(style assignments, nor does it place long strings below their boxes.)10 2665 1 720 7292 t
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10 pagesetup
10 R f
(- 8 -)2 166 1 2797 480 t
9 CW f
(awk ')1 270 1 720 890 t
( if \($0 !\304 /\303\\.begin[ \\t]/ || $2 != "dformat"\) print)10 2808( {)1 216(inlang == 0)2 594 3 720 1000 t
(else { inlang = 1; print ".PS"; boxacnt = 0 })10 2430 1 1584 1110 t
(next)1584 1220 w
(})1476 1330 w
( inlang = 0; print ".PE"; next })7 1728(/\303\\.end/ {)1 810 2 720 1440 t
( printf "BoxA: box invis ht 0.3 wid 0")8 2052( {)1 324(/\303[\303 \\t]/)1 486 3 720 1550 t
(if \(boxacnt++\) printf " with .n at BoxA.s - \(0,0.15\)")9 2862 1 1584 1660 t
(printf "\\n")1 594 1 1584 1770 t
( rjust at BoxA.w\\n", $0)4 1242( \\")1 216(printf " \\"%s:)2 756 3 1584 1880 t
(printf " BoxB: box invis ht 0.3 wid 0 at BoxA\\n")10 2592 1 1584 1990 t
(next)1584 2100 w
(})1476 2210 w
( range = $1; $1 = "")6 1080(/./ {)1 810 2 720 2320 t
(gsub\(/\303[ \\t]+/, ""\); gsub\(/[ \\t]+$/, ""\); text = $0)8 2754 1 1584 2430 t
(n = split\(range, x, "-"\))4 1296 1 1584 2540 t
(rlo = x[1])2 540 1 1584 2650 t
(rhi = \(n >= 2\) ? x[2] : rlo)8 1458 1 1584 2760 t
(rwid = rhi - rlo + 1)6 1080 1 1584 2870 t
( box %s ht .3 wid %g with .w at BoxB.e\\n",)10 2268( BoxB:)1 378(printf ")1 432 3 1584 2980 t
(btype, rwid*.2)1 756 1 2016 3090 t
( at BoxB.c\\n", text)3 1026( \\"%s\\")1 540(printf ")1 432 3 1584 3200 t
(printf "\\t\\" \\\\s-4%s\\\\s+4\\" ljust at BoxB.sw + \(0,.06\)\\n", rlo)8 3348 1 1584 3310 t
(printf "\\t\\"\\\\s-4%s\\\\s+4 \\" rjust at BoxB.se + \(0,.06\)\\n", rhi)8 3348 1 1584 3420 t
(})1476 3530 w
(' $*)1 216 1 720 3640 t
10 R f
(This sample input)2 717 1 720 3820 t
9 CW f
(.begin dformat)1 756 1 1080 3990 t
(Record 1)1 432 1 1080 4100 t
(0-7 Field 1a)2 648 1 1512 4210 t
(8-15 Field 1b)2 702 1 1512 4320 t
(Record 2)1 432 1 1080 4430 t
(0-5 Field 2a)2 648 1 1512 4540 t
(6 2b)1 216 1 1512 4650 t
(.end)1080 4760 w
10 R f
(produces this picture)2 832 1 720 4940 t
(Record 1:)1 391 1 1287 5230 t
1728 5102 1728 5318 Dl
2880 5102 1728 5102 Dl
2880 5318 2880 5102 Dl
1728 5318 2880 5318 Dl
(Field 1a)1 325 1 2142 5230 t
6 R f
(0 7)1 1102 1 1753 5294 t
10 R f
2880 5102 2880 5318 Dl
4032 5102 2880 5102 Dl
4032 5318 4032 5102 Dl
2880 5318 4032 5318 Dl
(Field 1b)1 331 1 3291 5230 t
6 R f
(8 15)1 1102 1 2905 5294 t
10 R f
(Record 2:)1 391 1 1287 5554 t
1728 5426 1728 5642 Dl
2592 5426 1728 5426 Dl
2592 5642 2592 5426 Dl
1728 5642 2592 5642 Dl
(Field 2a)1 325 1 1998 5554 t
6 R f
(0 5)1 814 1 1753 5618 t
10 R f
2592 5426 2592 5642 Dl
2736 5426 2592 5426 Dl
2736 5642 2736 5426 Dl
2592 5642 2736 5642 Dl
(2b)2614 5554 w
6 R f
(6 6)1 94 1 2617 5618 t
10 R f
(by making this PIC \256le:)4 957 1 720 5840 t
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10 R f
(- 9 -)2 166 1 2797 480 t
9 CW f
(.PS)1080 890 w
(BoxA: box invis ht 0.3 wid 0)6 1512 1 1080 1000 t
( rjust at BoxA.w)3 864( ")1 162("Record 1:)1 540 3 1134 1110 t
(BoxB: box invis ht 0.3 wid 0 at BoxA)8 1944 1 1134 1220 t
( .3 wid 1.6 with .w at BoxB.e)7 1566( ht)1 216(BoxB: box)1 486 3 1188 1330 t
("Field 1a" at BoxB.c)3 1080 1 1296 1440 t
(" \\s-40\\s+4" ljust at BoxB.sw + \(0,.06\))6 2106 1 1512 1550 t
("\\s-47\\s+4 " rjust at BoxB.se + \(0,.06\))6 2106 1 1512 1660 t
( .3 wid 1.6 with .w at BoxB.e)7 1566( ht)1 216(BoxB: box)1 486 3 1188 1770 t
("Field 1b" at BoxB.c)3 1080 1 1296 1880 t
(" \\s-48\\s+4" ljust at BoxB.sw + \(0,.06\))6 2106 1 1512 1990 t
("\\s-415\\s+4 " rjust at BoxB.se + \(0,.06\))6 2160 1 1512 2100 t
(BoxA: box invis ht 0.3 wid 0 with .n at BoxA.s - \(0,0.15\))12 3078 1 1080 2210 t
( rjust at BoxA.w)3 864( ")1 162("Record 2:)1 540 3 1134 2320 t
(BoxB: box invis ht 0.3 wid 0 at BoxA)8 1944 1 1134 2430 t
( .3 wid 1.2 with .w at BoxB.e)7 1566( ht)1 216(BoxB: box)1 486 3 1188 2540 t
("Field 2a" at BoxB.c)3 1080 1 1296 2650 t
(" \\s-40\\s+4" ljust at BoxB.sw + \(0,.06\))6 2106 1 1512 2760 t
("\\s-45\\s+4 " rjust at BoxB.se + \(0,.06\))6 2106 1 1512 2870 t
( .3 wid 0.2 with .w at BoxB.e)7 1566( ht)1 216(BoxB: box)1 486 3 1188 2980 t
("2b" at BoxB.c)2 756 1 1296 3090 t
(" \\s-46\\s+4" ljust at BoxB.sw + \(0,.06\))6 2106 1 1512 3200 t
("\\s-46\\s+4 " rjust at BoxB.se + \(0,.06\))6 2106 1 1512 3310 t
(.PE)1080 3420 w
10 R f
(The complete program produces similar PIC output; here is the source code.)11 3045 1 970 3636 t
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12 pagesetup
10 R f
(- 10 -)2 216 1 2772 480 t
8 CW f
(awk ')1 240 1 720 870 t
(function error\(s\) { print "dformat error: " s " near input line " NR | "cat 1>&2" })17 3984 1 720 960 t
( 0.15 ")2 336( recspread)1 624( 0.055)1 288( addrht)1 672( 0.3)1 192( "recht)1 432(BEGIN { s =)3 528 7 720 1140 t
( 4 ")2 192( addrdelta)1 624( 0.167)1 288( textht)1 528(s = s "charwid 0.07)4 912 5 1104 1230 t
( both ")2 336( addr)1 336( 0.04)1 240( linedisp)1 624(s = s "bitwid 0.125)4 912 5 1104 1320 t
( 1")1 144( linethrutext)1 1008(s = s "fill off)4 720 3 1104 1410 t
(n = split\(s, x\))3 720 1 1104 1500 t
(for \(i = 1; i <= n-1; i += 2\) oparm[x[i]] = parm[x[i]] = x[i+1])14 3024 1 1104 1590 t
(})720 1680 w
( if \($0 !\304 /\303\\.begin[ \\t]/ || $2 != "dformat"\) print)10 2496( {)1 192(inlang == 0)2 528 3 720 1860 t
(else {)1 288 1 1488 1950 t
(inlang = 1; print ".PS"; boxacnt = 0)7 1728 1 1872 2040 t
(if \(firstpic != 1\) { firstpic = 1; print "fillval = 0.9" })12 2784 1 1872 2130 t
(})1488 2220 w
(next)1488 2310 w
(})1392 2400 w
( inlang = 0; print ".PE"; next })7 1536(/\303\\.end/ {)1 720 2 720 2490 t
($1 == "style" { if \(!\($2 in parm\)\) error\("unrecognized name: " $2\))11 3168 1 720 2670 t
(else if \($3 == "reset"\) {)5 1200 1 1488 2760 t
(t = oparm[$2]; oparm[$2] = parm[$2]; parm[$2] = t)8 2352 1 1872 2850 t
(} else {)2 384 1 1488 2940 t
(oparm[$2] = parm[$2]; parm[$2] = $3)5 1680 1 1872 3030 t
(})1488 3120 w
(next)1488 3210 w
(})1392 3300 w
( $1 = ""; print $0; next })7 1248( {)1 192($1 == "pic")2 528 3 720 3480 t
( printf "BoxA: box invis ht %g wid 0", parm["recht"])9 2496( {)1 288(/\303[\303 \\t]/)1 432 3 720 3660 t
(if \(boxacnt++\) printf " with .n at BoxA.s - \(0,%g\)",)9 2496 1 1488 3750 t
(parm["recspread"] + maxdy*parm["textht"])2 1920 1 2256 3840 t
(printf "\\n")1 528 1 1488 3930 t
(maxdy = sumboxlen = 0)4 1008 1 1488 4020 t
(gsub\(/[ \\t]+$/, ""\))2 912 1 1488 4110 t
(if \($0 != "noname"\) {)4 1008 1 1488 4200 t
( rjust at BoxA.w\\n", $0)4 1104( \\")1 192(printf " \\"%s)2 624 3 1872 4290 t
(printf " box invis with .e at BoxA.w ht 0 wid %g\\n",)11 2496 1 1872 4380 t
(parm["charwid"] * \(length\($0\) + 3\))4 1632 1 2256 4470 t
(})1488 4560 w
(printf " BoxB: box invis ht %g wid 0 at BoxA\\n", parm["recht"])11 2976 1 1488 4650 t
(next)1488 4740 w
(})1392 4830 w
( boxname = "")3 624(/./ {)1 720 2 720 4920 t
(if \($1 \304 /:$/\) {)4 768 1 1488 5010 t
(boxname = substr\($1, 1, length\($1\)-1\))4 1776 1 1872 5100 t
($1 = ""; $0 = " " $0)7 960 1 1872 5190 t
(})1488 5280 w
(range = $1; $1 = "")5 912 1 1488 5370 t
(gsub\(/\303[ \\t]+/, ""\); gsub\(/[ \\t]+$/, ""\); text = $0)8 2448 1 1488 5460 t
(n = split\(range, x, "-"\))4 1152 1 1488 5550 t
( x[1])1 1104(rlo =)1 240 2 1488 5640 t
( rlo)1 192( :)1 144( x[2])1 480( >= 2\) ?)3 384( \(n)1 240(rhi =)1 240 6 1488 5730 t
(cwid = \(rhi >= rlo\) ? rhi - rlo + 1 : rlo - rhi + 1)16 2448 1 1488 5820 t
( >= 3\) ? \(0 + x[3]\) : cwid)8 1248( \(n)1 192(rwid =)1 288 3 1488 5910 t
( x[4])1 1008(btype =)1 336 2 1488 6000 t
(if \(btype !\304 /\303\(dot|dash|invis\)/\) btype = "solid")6 2352 1 1488 6090 t
(textlen = parm["charwid"] * length\(text\))4 1920 1 1488 6180 t
(boxlen = parm["bitwid"] * rwid)4 1440 1 1488 6270 t
(dy = 0)2 288 1 1488 6360 t
(if \(textlen > boxlen\) { # set dy, the channel for this text)12 2832 1 1488 6450 t
(chan[maxdy+1] = -999)2 960 1 1872 6540 t
(for \(dy = 1; chan[dy]+textlen > sumboxlen; dy++\) ;)8 2400 1 1872 6630 t
(if \(dy > maxdy\) maxdy = dy)6 1248 1 1872 6720 t
(if \(parm["linethrutext"] == 0\))3 1440 1 1872 6810 t
(for \(k = 1; k <= dy; k++\))7 1200 1 2256 6900 t
(chan[k] = sumboxlen+boxlen)2 1248 1 2640 6990 t
(else)1872 7080 w
(chan[dy] = sumboxlen)2 960 1 2256 7170 t
(})1488 7260 w
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13 pagesetup
10 R f
(- 11 -)2 216 1 2772 480 t
8 CW f
(sumboxlen += boxlen)2 912 1 1488 810 t
(fill = "")2 432 1 1488 900 t
(if \(parm["fill"] == "on"\) fill = " fill ")8 1968 1 1488 990 t
( boxname)1 384( %s:",)1 336(if \(boxname != ""\) printf ")5 1296 3 1488 1080 t
( box %s %s ht %g wid %g with .w at BoxB.e\\n",)11 2160( BoxB:)1 336(printf ")1 384 3 1488 1170 t
(fill, btype, parm["recht"], boxlen)3 1632 1 1872 1260 t
( at BoxB.c\\n", text)3 912( \\"%s\\")1 480(if \(dy == 0\) printf ")5 1008 3 1488 1350 t
( \(rwid < 2\) start = "BoxB.s")6 1344( if)1 192(else {)1 288 3 1488 1440 t
(else start = "BoxB.se - \(" parm["linedisp"] ",0\)")7 2352 1 1872 1530 t
( from %s down %g\\n",)4 960( line)1 384(printf ")1 384 3 1872 1620 t
(start, dy*parm["textht"])1 1152 1 2256 1710 t
( at last line .s rjust\\n", text)6 1488( \\"%s\\\\|\\")1 624(printf ")1 384 3 1872 1800 t
( invis with .e at last line .s ht 0 wid %g\\n",)11 2208( box)1 336(printf ")1 384 3 1872 1890 t
(textlen)2256 1980 w
(})1488 2070 w
(if \(parm["addr"] \304 /\303\(left|right|both\)$/\) {)4 2064 1 1488 2160 t
( Delta Point size)3 816( #)1 288(dp = int\(parm["addrdelta"]\))2 1296 3 1680 2250 t
(if \(dp < 0 || dp > 9\) error\("bad addrdelta value: " dp\))12 2640 1 1680 2340 t
( Delta Addr Height)3 864( #)1 624(dah = parm["addrht"])2 960 3 1680 2430 t
( Parameter for Bits)3 912( #)1 768(pb = parm["addr"])2 816 3 1680 2520 t
(if \(rlo == rhi\) {)4 816 1 1680 2610 t
( at BoxB.s + \(0,%g\)\\n",)4 1104( \\"\\\\s-%d%s\\\\s+%d\\")1 1056(printf ")1 384 3 1872 2700 t
(dp, rlo, dp, dah)3 768 1 2256 2790 t
(} else {)2 384 1 1680 2880 t
(if \(pb == "left" || pb == "both"\))7 1584 1 1872 2970 t
(printf "\\t\\"\\\\|\\\\s-%d%s\\\\s+%d\\" ljust at BoxB.sw + \(0,%g\)\\n",)6 2928 1 2064 3060 t
(dp, rlo, dp, dah)3 768 1 2256 3150 t
(if \(pb == "right" || pb == "both"\))7 1632 1 1872 3240 t
(printf "\\t\\"\\\\s-%d%s\\\\s+%d\\\\|\\" rjust at BoxB.se + \(0,%g\)\\n",)6 2928 1 2064 3330 t
(dp, rhi, dp, dah)3 768 1 2256 3420 t
(})1680 3510 w
(})1488 3600 w
(})1392 3690 w
( if \(inlang\) error\("eof inside begin/end"\) })6 2112(END {)1 720 2 720 3780 t
(' $*)1 192 1 720 3870 t
10 R f
( described)1 411( He)1 170( data formats in a document.)5 1157(I built DFORMAT for a colleague who wanted to include)9 2332 4 970 4086 t
( of hours on Saturday; it was a)7 1218( wrote the \256rst version in a couple)7 1369( I)1 84(the problem to me on a Friday afternoon.)7 1649 4 720 4206 t
( my colleague agreed that the output)6 1507( After)1 269( the simple version presented above.)5 1498(tad larger and dirtier than)4 1046 4 720 4326 t
( spent six hours on Sunday adding parameters, error checking, and several other)12 3241(was in the right ballpark, I)5 1079 2 720 4446 t
( other)1 235( program had just one user for a couple of months, but I described it to a number of)18 3397(fancinesses. The)1 688 3 720 4566 t
( a few days polishing the program and writing this docu-)10 2274( several requests for the code, I spent)7 1493(people. After)1 553 3 720 4686 t
( paper in your hand now, complete with code, represents roughly one staff-week of pro-)14 3676( the)1 158(ment. Thus)1 486 3 720 4806 t
(grammer time.)1 588 1 720 4926 t
( Field)1 265( there are several obvious choices.)5 1413(Were one to insist on putting more effort into this project,)10 2392 3 970 5082 t
( are usually handled pretty well by the simple algorithm in the current pro-)13 3073(names that over\257ow the boxes)4 1247 2 720 5202 t
( could build a)3 646( One)1 249( the process explicitly.)3 998(gram, but some users might like to be able to control)10 2427 4 720 5322 t
( you don't have access to sophisti-)6 1376( If)1 117(DFORMAT-like language for other typesetting systems, such as TEX.)8 2827 3 720 5442 t
( char-)1 235(cated output devices, you could write a program to translate from a DFORMAT-like language into a)15 4085 2 720 5562 t
(acter array:)1 450 1 720 5682 t
9 CW f
(----------------)1242 5852 w
(RR |Opcode| R1| R2|)3 1026 1 1080 5962 t
(----------------)1242 6072 w
( 12)1 270(0 8)1 486 2 1242 6182 t
(--------------------------------)1242 6402 w
( |)1 270( D2)1 378(RX |Opcode| R1| X2| B2|)4 1242 3 1080 6512 t
(--------------------------------)1242 6622 w
( 16 20)2 432( 12)1 270(0 8)1 486 3 1242 6732 t
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14 pagesetup
10 R f
(- 12 -)2 216 1 2772 480 t
10 B f
(Acknowledgments)720 840 w
10 R f
(I am grateful for the helpful comments of Sandy Fraser, Brian Kernighan, and Ravi Sethi.)14 3586 1 970 996 t
10 B f
(Summary of Features Added Since Original Version)6 2233 1 720 1236 t
10 R f
(The)970 1392 w
10 CW f
(fill)1167 1392 w
10 R f
(style parameter now permits \256lled boxes, and the)7 2083 1 1449 1392 t
10 CW f
(linethrutext)3575 1392 w
10 R f
(parameter avoids)1 702 1 4338 1392 t
(lines that pass through text.)4 1097 1 720 1512 t
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