From b8d2185277bd80e8ccaa31c4a5a7baa08a2afb23 Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Tue, 23 Feb 2021 17:37:20 +0300
Subject: [PATCH] added Watcom i386 inline asm for SDL_Swap64()
---
include/SDL_endian.h | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/include/SDL_endian.h b/include/SDL_endian.h
index f9a4fd368..cf2eba91e 100644
--- a/include/SDL_endian.h
+++ b/include/SDL_endian.h
@@ -232,6 +232,14 @@ SDL_Swap64(Uint64 x)
__asm__("bswapq %0": "=r"(x):"0"(x));
return x;
}
+#elif defined(__WATCOMC__) && defined(__386__)
+extern _inline Uint64 SDL_Swap64(Uint64);
+#pragma aux SDL_Swap64 = \
+ "bswap eax" \
+ "bswap edx" \
+ "xchg eax,edx" \
+ parm [eax edx] \
+ modify [eax edx];
#elif defined(_MSC_VER)
#pragma intrinsic(_byteswap_uint64)
#define SDL_Swap64(x) _byteswap_uint64(x)