# HG changeset patch
# User Michael Pavone <pavone@retrodev.com>
# Date 1507982618 25200
# Node ID 1e3e0205640f92017e6b5ee9d333b7930b04de00
# Parent  723f6381cffab1f23b7399aacab654cf68488913
Add support for writeable ROM and an entry for Game no Kanzume Otokuyou using that support as it expects the cart area to be writable

diff -r 723f6381cffa -r 1e3e0205640f rom.db
--- a/rom.db	Mon Oct 09 07:48:48 2017 -0700
+++ b/rom.db	Sat Oct 14 05:03:38 2017 -0700
@@ -1287,3 +1287,15 @@
 		}
 	}
 }
+31c66bd13abf4ae8271c09ec5286a0ee0289dbbc {
+	#Designed to run on Sega Channel hardware which is RAM-based
+	#writes to the this RAM qutie a bit to select games
+	name Game no Kanzume Otokuyou
+	map {
+		0 {
+			device ROM
+			last 3FFFFF
+			writeable yes
+		}
+	}
+}
diff -r 723f6381cffa -r 1e3e0205640f romdb.c
--- a/romdb.c	Mon Oct 09 07:48:48 2017 -0700
+++ b/romdb.c	Sat Oct 14 05:03:38 2017 -0700
@@ -559,8 +559,12 @@
 	map->end = end + 1;
 	if (!strcmp(dtype, "ROM")) {
 		map->buffer = state->rom + offset;
-		map->flags = MMAP_READ;
 		map->mask = calc_mask(state->rom_size - offset, start, end);
+		if (strcmp(tern_find_ptr_default(node, "writeable", "no"), "yes")) {
+			map->flags = MMAP_READ;
+		} else {
+			map->flags = MMAP_READ | MMAP_WRITE | MMAP_CODE;
+		}
 	} else if (!strcmp(dtype, "LOCK-ON")) {
 		rom_info lock_info;
 		if (state->lock_on) {