ref: 7c7ce1f9c1bd9ddd7b381bb2dd0a84d6c66074f5
parent: 4ac86cf6bcb29e89ec0e1c658a5699642986993c
author: mkf <mkf@cloud9p.org>
date: Fri Nov 24 03:57:45 EST 2023
add check and clear for real this time
--- /dev/null
+++ b/cmd/check.c
@@ -1,0 +1,42 @@
+/* health check, stuff should look fine */
+
+#include <u.h>
+#include <libc.h>
+
+#include <err.h>
+#include <mem.h>
+
+void
+malloc_test(void)
+{+ void *a, *b, *c;
+
+ a = malloc(1);
+ b = malloc(2);
+ c = malloc(3);
+
+ printf("a = %x\n", a);+ printf("b = %x\n", b);+ printf("c = %x\n", c);+
+ printf("a location in memap = %x\n", ((int)(a) - MEM_BEG) / BLOCKSIZE);+ printf("b location in memap = %x\n", ((int)(b) - MEM_BEG) / BLOCKSIZE);+ printf("c location in memap = %x\n", ((int)(b) - MEM_BEG) / BLOCKSIZE);+
+ printf("memap[a] = %x\n", memap[(((int)(a) - MEM_BEG) / BLOCKSIZE) + 1]);+ printf("memap[b] = %x\n", memap[(((int)(b) - MEM_BEG) / BLOCKSIZE) + 1]);+ printf("memap[c] = %x\n", memap[(((int)(c) - MEM_BEG) / BLOCKSIZE) + 1]);+
+ free(a);
+ free(b);
+ free(c);
+}
+
+int
+check_main(int argc, char **argv)
+{+ malloc_test();
+ printf("Press any key to quit test\n");+ scanf("");+ return OK;
+}
--- /dev/null
+++ b/cmd/clear.c
@@ -1,0 +1,37 @@
+#include <u.h>
+#include <libc.h>
+
+#include <vga.h>
+#include <ps2.h>
+
+#include <err.h>
+
+void
+clear_usage(void)
+{+ vga_puts("usage: clear [-k]\n");+}
+
+int
+clear_main(int argc, char **argv)
+{+
+ char c;
+
+ if(argc == 2)
+ {+ if(!strcmp(argv[1], "-k"))
+ {+ vga_puts("Please press any key to clear the screen\n");+ ps2_getc();
+ }
+ else
+ {+ clear_usage();
+ return USAGE;
+ }
+ }
+
+ vga_clear(c);
+ return OK;
+}