aboutsummaryrefslogtreecommitdiffstats
path: root/com32/menu/execute.c
diff options
context:
space:
mode:
Diffstat (limited to 'com32/menu/execute.c')
-rw-r--r--com32/menu/execute.c70
1 files changed, 70 insertions, 0 deletions
diff --git a/com32/menu/execute.c b/com32/menu/execute.c
new file mode 100644
index 00000000..ace0e571
--- /dev/null
+++ b/com32/menu/execute.c
@@ -0,0 +1,70 @@
+/* ----------------------------------------------------------------------- *
+ *
+ * Copyright 2004-2008 H. Peter Anvin - All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston MA 02110-1301, USA; either version 2 of the License, or
+ * (at your option) any later version; incorporated herein by reference.
+ *
+ * ----------------------------------------------------------------------- */
+
+#include <stdlib.h>
+#include <string.h>
+#include <com32.h>
+#include "menu.h"
+
+void execute(const char *cmdline, enum kernel_type type)
+{
+ com32sys_t ireg;
+ const char *p, * const *pp;
+ char *q = __com32.cs_bounce;
+ const char *kernel, *args;
+
+ memset(&ireg, 0, sizeof ireg);
+
+ kernel = q;
+ p = cmdline;
+ while ( *p && !my_isspace(*p) ) {
+ *q++ = *p++;
+ }
+ *q++ = '\0';
+
+ args = q;
+ while ( *p && my_isspace(*p) )
+ p++;
+
+ strcpy(q, p);
+
+ if (kernel[0] == '.' && type == KT_NONE) {
+ /* It might be a type specifier */
+ enum kernel_type type = KT_NONE;
+ for (pp = kernel_types; *pp; pp++, type++) {
+ if (!strcmp(kernel+1, *pp)) {
+ execute(p, type); /* Strip the type specifier and retry */
+ }
+ }
+ }
+
+ if (type == KT_LOCALBOOT) {
+ ireg.eax.w[0] = 0x0014; /* Local boot */
+ ireg.edx.w[0] = strtoul(kernel, NULL, 0);
+ } else {
+ if (type < KT_KERNEL)
+ type = KT_KERNEL;
+
+ ireg.eax.w[0] = 0x0016; /* Run kernel image */
+ ireg.esi.w[0] = OFFS(kernel);
+ ireg.ds = SEG(kernel);
+ ireg.ebx.w[0] = OFFS(args);
+ ireg.es = SEG(args);
+ ireg.edx.l = type-KT_KERNEL;
+ /* ireg.ecx.l = 0; */ /* We do ipappend "manually" */
+ }
+
+ __intcall(0x22, &ireg, NULL);
+
+ /* If this returns, something went bad; return to menu */
+}
+