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[/] [eco32/] [trunk/] [lcc/] [etc/] [ops.c] - Rev 149
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#include "c.h" /* ops [ {csilhfdxp}=n ]... * prints lcc dag operator set for a given set of type sizes. */ static char rcsid[] = "$Id: ops.c,v 4.1 2002/08/28 23:12:20 drh Exp $"; static char list[] = { 'c', 's', 'i', 'l', 'h', 'f', 'd', 'x', 'p', 0 }; static int sizes[] = { 1, 2, 4, 4, 8, 4, 8, 16, 8 }; static int doop(int op, int type, const char *sz, const char *opname) { int count = 0; static int last; if (op == LOAD) return 0; if (last != 0 && last != op) printf("\n"); last = op; if (type == B || type == V) { printf(" %s=%d", opname, op + type); count++; } else { int i, done = 0; const char *s; for (i = 0; sz[i] != '\0' && (s = strchr(list, sz[i])) != NULL; i++) { int n = sizes[s-list]; if ((done&(1<<n)) == 0) { printf(" %s%d=%d", opname, n, op + type + sizeop(n)); count++; } done |= 1<<n; } } printf("\n"); return count; } int main(int argc, char *argv[]) { int i, count = 0; for (i = 1; i < argc; i++) { char c, *s; int n; if (sscanf(argv[i], "%c=%d", &c, &n) == 2 && n > 0 && (s = strchr(list, c)) != NULL) sizes[s-list] = n; else { fprintf(stderr, "usage: %s [ {csilhfdxp}=n ]...\n", argv[0]); exit(EXIT_FAILURE); } } #define gop(x,n) #define op(x,t,s) count += doop(x,t,#s,#x #t); #include "ops.h" #undef gop #undef op fprintf(stderr, "%d operators\n", count); return EXIT_SUCCESS; }
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