debugger

1 files changed, 44 insertions, 0 deletions

diff --git a/src/cmd/db/regs.c b/src/cmd/db/regs.c
new file mode 100644
index 00000000..4a9a4426
--- /dev/null
+++ b/src/cmd/db/regs.c
@@ -0,0 +1,44 @@
+/*
+ * code to keep track of registers
+ */
+
+#include "defs.h"
+#include "fns.h"
+
+/*
+ * print the registers
+ */
+void
+printregs(int c)
+{
+	Regdesc *rp;
+	int i;
+	ulong u;
+
+	if(correg == nil){
+		dprint("registers not mapped\n");
+		return;
+	}
+
+	for (i = 1, rp = mach->reglist; rp->name; rp++, i++) {
+		if ((rp->flags & RFLT)) {
+			if (c != 'R')
+				continue;
+			if (rp->format == '8' || rp->format == '3')
+				continue;
+		}
+		rget(correg, rp->name, &u);
+		if(rp->format == 'Y')
+			dprint("%-8s %-20#llux", rp->name, (uvlong)u);
+		else
+			dprint("%-8s %-12#lux", rp->name, (ulong)u);
+		if ((i % 3) == 0) {
+			dprint("\n");
+			i = 0;
+		}
+	}
+	if (i != 1)
+		dprint("\n");
+	dprint ("%s\n", mach->exc(cormap, correg));
+	printpc();
+}