hw/audio/gus: Fix registers 32-bit access

Fix audio on software that accesses DRAM above 64k via register
peek/poke and some cases when more than 16 voices are used.

Cc: [email protected]
Fixes: 135f5ae ("audio: GUSsample is int16_t")
Signed-off-by: Allan Peramaki <[email protected]>
Tested-by: Volker Rümelin <[email protected]>
Reviewed-by: Volker Rümelin <[email protected]>
Reviewed-by: Thomas Huth <[email protected]>
Reviewed-by: Peter Maydell <[email protected]>
Signed-off-by: Philippe Mathieu-Daudé <[email protected]>
Message-id: [email protected]
Message-Id: <[email protected]>
[PMD: Removed unrelated style changes]
Signed-off-by: Philippe Mathieu-Daudé <[email protected]>
Signed-off-by: Gerd Hoffmann <[email protected]>

Author: Allan Peramaki

hw/audio/gusemu_hal.c

@@ -32,7 +32,7 @@
 
 #define GUSregb(position) (*            (gusptr+(position)))
 #define GUSregw(position) (*(uint16_t *) (gusptr+(position)))
-#define GUSregd(position) (*(uint16_t *)(gusptr+(position)))
+#define GUSregd(position) (*(uint32_t *)(gusptr + (position)))
 
 /* size given in bytes */
 unsigned int gus_read(GUSEmuState * state, int port, int size)

hw/audio/gusemu_mixer.c

@@ -28,7 +28,7 @@
 
 #define GUSregb(position)  (*            (gusptr+(position)))
 #define GUSregw(position)  (*(uint16_t *) (gusptr+(position)))
-#define GUSregd(position)  (*(uint16_t *)(gusptr+(position)))
+#define GUSregd(position)  (*(uint32_t *)(gusptr + (position)))
 
 #define GUSvoice(position) (*(uint16_t *)(voiceptr+(position)))