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-rw-r--r--include/gba/io_reg.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/gba/io_reg.h b/include/gba/io_reg.h
index 1daa99e1d..148ce31db 100644
--- a/include/gba/io_reg.h
+++ b/include/gba/io_reg.h
@@ -482,6 +482,7 @@
#define REG_SIODATA32 (*(vu32 *)REG_ADDR_SIODATA32)
#define REG_SIOMLT_SEND (*(vu16 *)REG_ADDR_SIOMLT_SEND)
#define REG_SIOMLT_RECV (*(vu64 *)REG_ADDR_SIOMLT_RECV)
+#define REG_SIOMULTI(n) (*(vu16 *)(REG_ADDR_SIOMULTI0 + (n) * 2))
#define REG_SIOMULTI0 (*(vu16 *)REG_ADDR_SIOMULTI0)
#define REG_SIOMULTI1 (*(vu16 *)REG_ADDR_SIOMULTI1)
#define REG_SIOMULTI2 (*(vu16 *)REG_ADDR_SIOMULTI2)