diff --git a/regs/systembus_bits.csv b/regs/systembus_bits.csv
index b77833b..5eea483 100644
--- a/regs/systembus_bits.csv
+++ b/regs/systembus_bits.csv
@@ -11,7 +11,7 @@
 "ISTNRM",,"16","end_of_dma_ext_dma1","1",,
 "ISTNRM",,"15","end_of_dma_aica_dma","1",,
 "ISTNRM",,"14","end_of_dma_gd_dma","1",,
-"ISTNRM",,"13","maple_v_blank_over_interrupt","1",,
+"ISTNRM",,"13","maple_v_blank_over","1",,
 "ISTNRM",,"12","end_of_dma_maple_dma","1",,
 "ISTNRM",,"11","end_of_dma_pvr_dma","1",,
 "ISTNRM",,"10","end_of_transferring_translucent_modifier_volume_list","1",,
@@ -19,9 +19,9 @@
 "ISTNRM",,"8","end_of_transferring_opaque_modifier_volume_list","1",,
 "ISTNRM",,"7","end_of_transferring_opaque_list","1",,
 "ISTNRM",,"6","end_of_transferring_yuv","1",,
-"ISTNRM",,"5","h_blank_in_interrupt","1",,
-"ISTNRM",,"4","v_blank_out_interrupt","1",,
-"ISTNRM",,"3","v_blank_in_interrupt","1",,
+"ISTNRM",,"5","h_blank_in","1",,
+"ISTNRM",,"4","v_blank_out","1",,
+"ISTNRM",,"3","v_blank_in","1",,
 "ISTNRM",,"2","end_of_render_tsp","1",,
 "ISTNRM",,"1","end_of_render_isp","1",,
 "ISTNRM",,"0","end_of_render_video","1",,
diff --git a/regs/systembus_bits.ods b/regs/systembus_bits.ods
index b292af6..a0baeb0 100644
Binary files a/regs/systembus_bits.ods and b/regs/systembus_bits.ods differ
diff --git a/systembus.hpp b/systembus.hpp
index 0eb9117..e09184b 100644
--- a/systembus.hpp
+++ b/systembus.hpp
@@ -1,3 +1,5 @@
+#pragma once
+
 #include <cstdint>
 #include <cstddef>
 
diff --git a/systembus_bits.hpp b/systembus_bits.hpp
index 37cc7fd..9438840 100644
--- a/systembus_bits.hpp
+++ b/systembus_bits.hpp
@@ -32,7 +32,7 @@ constexpr uint32_t end_of_dma_aica_dma = 1 << 15;
 
 constexpr uint32_t end_of_dma_gd_dma = 1 << 14;
 
-constexpr uint32_t maple_v_blank_over_interrupt = 1 << 13;
+constexpr uint32_t maple_v_blank_over = 1 << 13;
 
 constexpr uint32_t end_of_dma_maple_dma = 1 << 12;
 
@@ -48,11 +48,11 @@ constexpr uint32_t end_of_transferring_opaque_list = 1 << 7;
 
 constexpr uint32_t end_of_transferring_yuv = 1 << 6;
 
-constexpr uint32_t h_blank_in_interrupt = 1 << 5;
+constexpr uint32_t h_blank_in = 1 << 5;
 
-constexpr uint32_t v_blank_out_interrupt = 1 << 4;
+constexpr uint32_t v_blank_out = 1 << 4;
 
-constexpr uint32_t v_blank_in_interrupt = 1 << 3;
+constexpr uint32_t v_blank_in = 1 << 3;
 
 constexpr uint32_t end_of_render_tsp = 1 << 2;