diff --git a/src/mame/nec/pc9801.cpp b/src/mame/nec/pc9801.cpp
index 675bd1f8785..9447f3fa932 100644
--- a/src/mame/nec/pc9801.cpp
+++ b/src/mame/nec/pc9801.cpp
@@ -2024,7 +2024,6 @@ MACHINE_RESET_MEMBER(pc9801_state,pc9801f)
 	uint8_t op_mode;
 	uint8_t *ROM;
 	uint8_t *PRG = memregion("fdc_data")->base();
-	int i;
 
 	// TODO: this loading shouldn't happen dynamically but actually be tied to specific floppy configs
 	// pc9801 has no floppy as default
@@ -2035,13 +2034,13 @@ MACHINE_RESET_MEMBER(pc9801_state,pc9801f)
 	ROM = memregion("fdc_bios_2dd")->base();
 	op_mode = (ioport("ROM_LOAD")->read() & 2) >> 1;
 
-	for(i=0;i<0x1000;i++)
+	for(int i=0;i<0x1000;i++)
 		ROM[i] = PRG[i+op_mode*0x8000];
 
 	ROM = memregion("fdc_bios_2hd")->base();
 	op_mode = ioport("ROM_LOAD")->read() & 1;
 
-	for(i=0;i<0x1000;i++)
+	for(int i=0;i<0x1000;i++)
 		ROM[i] = PRG[i+op_mode*0x8000+0x10000];
 
 	m_beeper->set_state(0);
@@ -2068,8 +2067,7 @@ MACHINE_RESET_MEMBER(pc9801vm_state,pc9801rs)
 	}
 
 	m_dac1bit_disable = true;
-
-	memset(&m_egc, 0, sizeof(m_egc));
+	m_egc = { };
 }
 
 MACHINE_RESET_MEMBER(pc9801bx_state,pc9801bx2)
diff --git a/src/mame/nec/pc9801.h b/src/mame/nec/pc9801.h
index 7b20ef46e09..30ef597bb41 100644
--- a/src/mame/nec/pc9801.h
+++ b/src/mame/nec/pc9801.h
@@ -341,7 +341,7 @@ protected:
 		uint8_t prev_dx = 0, prev_dy = 0;
 		uint8_t freq_reg = 0;
 		uint8_t freq_index = 0;
-	}m_mouse;
+	} m_mouse;
 
 private:
 	u8 ppi_mouse_porta_r();
@@ -467,7 +467,7 @@ protected:
 	struct {
 		uint8_t pal_entry = 0;
 		uint8_t r[16]{}, g[16]{}, b[16]{};
-	}m_analog16;
+	} m_analog16;
 
 private:
 	// EGC, PC9801VX onward