readrom: print the usual PRG-RAM size if available

If 'has_persistent_memory' has been set on the ROM header, then we must
print it even if bytes 8/10 was never set by the header. In fact, the
vast majority of ROM files don't have these bytes set but they report a
true value for 'has_persistent_memory'. Hence, assume the usual PRG-RAM
size in these cases, which is (I hope) the correct one in all cases.

Signed-off-by: Miquel Sabaté Solà <mssola@mssola.com>

2 files changed, 4 insertions, 1 deletions

diff --git a/crates/readrom/src/main.rs b/crates/readrom/src/main.rs
index 07ca349..3c87417 100644
--- a/crates/readrom/src/main.rs
+++ b/crates/readrom/src/main.rs
@@ -97,7 +97,10 @@ fn print_header(header: &Header) {
             def.size / 1024,
             def.kind
         );
+    } else if header.has_persistent_memory {
+        println!("  PRG-RAM size:\t\t8192 bytes (8KB)");
     }
+
     if let Some(def) = &header.chr_ram_definition {
         println!(
             "  CHR-RAM size:\t\t{} bytes ({}KB); {}",
diff --git a/lib/header/src/lib.rs b/lib/header/src/lib.rs
index bd1edaa..7f561a1 100644
--- a/lib/header/src/lib.rs
+++ b/lib/header/src/lib.rs
@@ -221,7 +221,7 @@ fn parse_ram_definition(
 ) -> Option<RamDefinition> {
     // If the bit for persistent memory was not set, then we don't even
     // bother. If there was something relevant here, then the ROM does not have
-    // a proper format.\
+    // a proper format.
     //
     // Moreover, if this is not NES 2.0 format, then we don't even bother as
     // defining this on iNES v1 is not recommended.