--- /dev/null
+The test are subdivided into several directories.
+Only the directory ctgen contains more than one program, but it
+is an exception anyhow.
+All other directories contain one program, say test.c.
+It is translated with a file test.cem as result.
+This test is run, producing output on test.cem.r.
+The 'expected' output is distributed on files named test.cem.g.
+The run files in these directories use the makefile in this
+directory to create the ...cem, ....cem.r files.
+After creating the ....cem.r files a diff is run between the .r
+and .g files. The output of these diffs is preceded by the line
+comparing ....cem
+Not all differences are caused by errors.
+Part of the output in the subdirectory ctmargt is a printout
+of the current environment variables. These will differ per
+user.
+The expected output in the directory ctconv is for a compiler
+that considers char's as unsigned quantaties.
+The expected output in all directories is generated using
+16-bit arithmetic, using 32-bit arithmetic will cause several
+discrepancies to occur with the expected output in the ...cem.g
+files.
+
+If any other differences with the expected output occur, the error
+causing the diffence has to be rooted out by a person with some
+experience with the kit. Most errors will be caused by the
+backend programs, so looking at the assembly code generated by
+such a backend from EM code is a good strategy when looking for
+a cause.
+
+The programs in the directory ctgen are structured somewhat
+differently. This directory contains a file 'OPS' with a
+prototype program. This prototype program performs all C
+arithmetic operations on a few operands. The operands are
+X, Y, S, Z1, Z2. X, Y and S can be arbitrary expressions,
+but S is used as a shift count and must be less then 16 (32).
+Z1 and Z2 must be lvalue's.
+The name ISTART indicates global declarations and LSTART
+indicates local declarations.
+The files ....sed (e.g. test.sed) are used
+to produce legal C programs from the OPS file, in which
+the result of all expressions is printed.
+The programs are run in the way described above.
--- /dev/null
+/*
+ * (c) copyright 1983 by the Vrije Universiteit, Amsterdam, The Netherlands.
+ *
+ * This product is part of the Amsterdam Compiler Kit.
+ *
+ * Permission to use, sell, duplicate or disclose this software must be
+ * obtained in writing. Requests for such permissions may be sent to
+ *
+ * Dr. Andrew S. Tanenbaum
+ * Wiskundig Seminarium
+ * Vrije Universiteit
+ * Postbox 7161
+ * 1007 MC Amsterdam
+ * The Netherlands
+ *
+ */
+
+/* Author: E.G. Keizer */
+
+main() {
+ t1() ;
+ return 0 ;
+}
+
+t1() {
+ char c ; int i ; long l ; unsigned u ; float f ;
+
+ /* test conversions */
+
+ /* first some conversions on constants */
+
+ printf("(int) '\\377' = %d\n",(int) '\377') ;
+ printf("(long) -1 = %ld\n",(long) -1 ) ;
+ printf("(float) 12 = %f\n",(float) 12 ) ;
+ printf("(int) 3.14 = %d\n",(int) 3.14 ) ;
+ printf("(int) 32767L = %d\n",(int) 32767L ) ;
+ printf("(int) -32768L = %d\n",(int) -32768L ) ;
+ printf("(char) 128L = %d\n",(char) 128L) ;
+ printf("(char) 0377 = %d\n",(char) 0377 ) ;
+ printf("(char) -1 = %d\n",(char) -1 ) ;
+ printf("(char) 10000 = %d\n",(char) 10000 ) ;
+
+ /* conversions from characters */
+ printf("From character\n") ;
+ c = 127 ;
+ i=c ;
+ l=c ;
+ u=c ;
+ f=c ;
+ printf("\tchar %5d, int %6d, unsigned %6o, long %11ld, float %f\n",c,i,u,l,f) ;
+ c = -1 ;
+ i=c ;
+ l=c ;
+ u=c ;
+ f=c ;
+ printf("\tchar %5d, int %6d, unsigned %6o, long %11ld, float %f\n",c,i,u,l,f) ;
+ c = 0377 ;
+ i=c ;
+ l=c ;
+ u=c ;
+ f=c ;
+ printf("\tchar %5d, int %6d, unsigned %6o, long %11ld, float %f\n",c,i,u,l,f) ;
+
+ /* from integer */
+ printf("From integer\n") ;
+ i= -64 ;
+ c=i ;
+ l=i ;
+ u=i ;
+ f=i ;
+ printf("\tchar %5d, int %6d, unsigned %6o, long %11ld, float %f\n",c,i,u,l,f) ;
+
+ /* from long */
+ printf("From long\n") ;
+ l = -3 ;
+ c = l ;
+ i = l ;
+ u = l ;
+ f = l ;
+ printf("\tchar %5d, int %6d, unsigned %6o, long %11ld, float %f\n",c,i,u,l,f) ;
+
+ printf("From float\n") ;
+ f = 121.5 ;
+ c = f ;
+ i = f ;
+ u = f ;
+ l = f ;
+ printf("\tchar %5d, int %6d, unsigned %6o, long %11ld, float %f\n",c,i,u,l,f) ;
+ f = 1e-4 ;
+ c = f ;
+ i = f ;
+ u = f ;
+ l = f ;
+ printf("\tchar %5d, int %6d, unsigned %6o, long %11ld, float %f\n",c,i,u,l,f) ;
+ f = 3276.6e1 ;
+ i = f ;
+ u = f ;
+ l = f ;
+ printf("\tint %6d, unsigned %6o, long %11ld, float %f\n",i,u,l,f) ;
+ f = 1223432e3 ;
+ l = f ;
+ printf("\tlong %11ld, float %f\n",l,f) ;
+
+ /* some special cases */
+ {
+ int a[4] ;
+
+ l = 3 ; a[3]= -17 ;
+ printf("a[l] (l==%ld) %d\n",l,a[l]) ;
+ printf("a[3l] %d\n",a[3l] ) ;
+
+ }
+ return 0 ;
+}
--- /dev/null
+(int) '\377' = 255
+(long) -1 = -1
+(float) 12 = 12.000000
+(int) 3.14 = 3
+(int) 32767L = 32767
+(int) -32768L = -32768
+(char) 128L = 128
+(char) 0377 = 255
+(char) -1 = 255
+(char) 10000 = 16
+From character
+ char 127, int 127, unsigned 177, long 127, float 127.000000
+ char 255, int 255, unsigned 377, long 255, float 255.000000
+ char 255, int 255, unsigned 377, long 255, float 255.000000
+From integer
+ char 192, int -64, unsigned 177700, long -64, float -64.000000
+From long
+ char 253, int -3, unsigned 177775, long -3, float -3.000000
+From float
+ char 121, int 121, unsigned 171, long 121, float 121.500000
+ char 0, int 0, unsigned 0, long 0, float 0.000100
+ int 32766, unsigned 77776, long 32766, float 32766.000000
+ long 1223432064, float 1223432064.000000
+a[l] (l==3) -17
+a[3l] -17
public / ack.git / commitdiff