From 28165a19e495020da43e8aeb1e361cf6a3201424 Mon Sep 17 00:00:00 2001
From: kub <derkub@gmail.com>
Date: Mon, 5 Jun 2023 18:04:24 +0000
Subject: [PATCH] core, always allocate a power of 2 for cartridges
---
pico/cart.c | 17 +++++++++--------
1 file changed, 9 insertions(+), 8 deletions(-)
diff --git a/pico/cart.c b/pico/cart.c
index dee5485b..bcdf5529 100644
--- a/pico/cart.c
+++ b/pico/cart.c
@@ -713,21 +713,22 @@ static unsigned char *PicoCartAlloc(int filesize, int is_sms)
{
unsigned char *rom;
+ // make size power of 2 for easier banking handling
+ int s = 0, tmp = filesize;
+ while ((tmp >>= 1) != 0)
+ s++;
+ if (filesize > (1 << s))
+ s++;
+ rom_alloc_size = 1 << s;
+
if (is_sms) {
- // make size power of 2 for easier banking handling
- int s = 0, tmp = filesize;
- while ((tmp >>= 1) != 0)
- s++;
- if (filesize > (1 << s))
- s++;
- rom_alloc_size = 1 << s;
// be sure we can cover all address space
if (rom_alloc_size < 0x10000)
rom_alloc_size = 0x10000;
}
else {
// align to 512K for memhandlers
- rom_alloc_size = (filesize + 0x7ffff) & ~0x7ffff;
+ rom_alloc_size = (rom_alloc_size + 0x7ffff) & ~0x7ffff;
}
if (rom_alloc_size - filesize < 4)
--
2.39.5