# HG changeset patch
# User Mychaela Falconia <falcon@freecalypso.org>
# Date 1701561663 0
# Node ID 6b87de9e385bda760e5044a18f3a89e069845765
# Parent  676203b4bf3393fca506447ff97a802ef221ecc4
pln-ppb-test: implement mode-exit

diff -r 676203b4bf33 -r 6b87de9e385b target-utils/pln-ppb-test/cmdtab.c
--- a/target-utils/pln-ppb-test/cmdtab.c	Sat Dec 02 23:50:07 2023 +0000
+++ b/target-utils/pln-ppb-test/cmdtab.c	Sun Dec 03 00:01:03 2023 +0000
@@ -4,6 +4,7 @@
 extern void cmd_abbw();
 extern void cmd_jump();
 extern void cmd_mode_entry();
+extern void cmd_mode_exit();
 extern void cmd_r8();
 extern void cmd_r16();
 extern void cmd_r32();
@@ -27,6 +28,7 @@
 	{"dump", cmd_memdump_human},
 	{"jump", cmd_jump},
 	{"mode-entry", cmd_mode_entry},
+	{"mode-exit", cmd_mode_exit},
 	{"poweroff", abb_power_off},
 	{"r8", cmd_r8},
 	{"r16", cmd_r16},
diff -r 676203b4bf33 -r 6b87de9e385b target-utils/pln-ppb-test/mode_entry.c
--- a/target-utils/pln-ppb-test/mode_entry.c	Sat Dec 02 23:50:07 2023 +0000
+++ b/target-utils/pln-ppb-test/mode_entry.c	Sun Dec 03 00:01:03 2023 +0000
@@ -30,3 +30,24 @@
 	*(volatile u16 *)(addr + 0x554) = 0x55;
 	*(volatile u16 *)(addr + 0xAAA) = mode;
 }
+
+void
+cmd_mode_exit(argbulk)
+	char *argbulk;
+{
+	char *argv[2];
+	u_long addr;
+
+	if (parse_args(argbulk, 1, 1, argv, 0) < 0)
+		return;
+	if (parse_hexarg(argv[0], 8, &addr) < 0) {
+		printf("ERROR: argument must be a valid 32-bit hex address\n");
+		return;
+	}
+	if (addr & 0xFFFF) {
+		printf("ERROR: address is not on 64 KiB boundary\n");
+		return;
+	}
+	*(volatile u16 *)addr = 0x90;
+	*(volatile u16 *)addr = 0x00;
+}