From 8f3716ad43b45fbef9cb35e20bc84c078a727c60 Mon Sep 17 00:00:00 2001
From: Olivier Galibert <galibert@pobox.com>
Date: Thu, 8 Jun 2023 11:34:58 +0200
Subject: yamaha: remove unused adc methods

---
 src/mame/yamaha/ymmu100.cpp |  7 -------
 src/mame/yamaha/ymmu50.cpp  |  7 -------
 src/mame/yamaha/ymmu80.cpp  |  7 -------
 src/mame/yamaha/ymvl70.cpp  | 21 ---------------------
 4 files changed, 42 deletions(-)

diff --git a/src/mame/yamaha/ymmu100.cpp b/src/mame/yamaha/ymmu100.cpp
index e71930700f0..dab8d64dfe1 100644
--- a/src/mame/yamaha/ymmu100.cpp
+++ b/src/mame/yamaha/ymmu100.cpp
@@ -280,7 +280,6 @@ private:
 	u8 cur_p1, cur_p2, cur_p3, cur_p5, cur_p6, cur_pa, cur_pb, cur_pc, cur_pf, cur_pg;
 	u8 cur_ic32;
 
-	u16 adc_zero_r();
 	u16 adc_ar_r();
 	u16 adc_al_r();
 	u16 adc_midisw_r();
@@ -534,12 +533,6 @@ void mu100_state::mu100_map(address_map &map)
 	map(0x400000, 0x401fff).m(m_swp30, FUNC(swp30_device::map));
 }
 
-// Grounded adc input
-u16 mu100_state::adc_zero_r()
-{
-	return 0;
-}
-
 // Analog input right (also sent to the swp)
 u16 mu100_state::adc_ar_r()
 {
diff --git a/src/mame/yamaha/ymmu50.cpp b/src/mame/yamaha/ymmu50.cpp
index 0f5541143fc..1b88f6e0d0c 100644
--- a/src/mame/yamaha/ymmu50.cpp
+++ b/src/mame/yamaha/ymmu50.cpp
@@ -79,7 +79,6 @@ private:
 
 	u8 cur_p6, cur_pa, cur_pb, cur_pc;
 
-	[[maybe_unused]] u16 adc_zero_r();
 	u16 adc_ar_r();
 	u16 adc_al_r();
 	u16 adc_midisw_r();
@@ -111,12 +110,6 @@ void mu50_state::mu50_map(address_map &map)
 	map(0x400000, 0x400fff).m(m_swp00, FUNC(swp00_device::map)).umask16(0xff00);
 }
 
-// Grounded adc input
-u16 mu50_state::adc_zero_r()
-{
-	return 0;
-}
-
 // Analog input right (not sent to the swp)
 u16 mu50_state::adc_ar_r()
 {
diff --git a/src/mame/yamaha/ymmu80.cpp b/src/mame/yamaha/ymmu80.cpp
index c3c22e64d0c..3f8d89ca4f1 100644
--- a/src/mame/yamaha/ymmu80.cpp
+++ b/src/mame/yamaha/ymmu80.cpp
@@ -200,7 +200,6 @@ private:
 
 	u8 cur_p6, cur_pa, cur_pb, cur_ic32;
 
-	u16 adc_zero_r();
 	u16 adc_ar_r();
 	u16 adc_al_r();
 	u16 adc_midisw_r();
@@ -231,12 +230,6 @@ void mu80_state::mu80_map(address_map &map)
 	map(0x460000, 0x46003f).m(m_swp20_1, FUNC(swp20_device::map));
 }
 
-// Grounded adc input
-u16 mu80_state::adc_zero_r()
-{
-	return 0;
-}
-
 // Analog input right (also sent to the swp)
 u16 mu80_state::adc_ar_r()
 {
diff --git a/src/mame/yamaha/ymvl70.cpp b/src/mame/yamaha/ymvl70.cpp
index 7bb8f5399b4..555cc56c950 100644
--- a/src/mame/yamaha/ymvl70.cpp
+++ b/src/mame/yamaha/ymvl70.cpp
@@ -88,9 +88,6 @@ private:
 	u8 cur_p1, cur_p2, cur_p3, cur_p5, cur_p6, cur_pa, cur_pc, cur_pf, cur_pg;
 	u8 cur_ic32;
 
-	u16 adc_zero_r();
-	[[maybe_unused]] u16 adc_ar_r();
-	[[maybe_unused]] u16 adc_al_r();
 	u16 adc_midisw_r();
 	u16 adc_battery_r();
 	u16 adc_breath_r();
@@ -120,24 +117,6 @@ void vl70_state::vl70_map(address_map &map)
 	map(0x600000, 0x60001f).m(m_meg, FUNC(meg_device::map));
 }
 
-// Grounded adc input
-u16 vl70_state::adc_zero_r()
-{
-	return 0;
-}
-
-// Analog input right (also sent to the swp)
-u16 vl70_state::adc_ar_r()
-{
-	return 0;
-}
-
-// Analog input left (also sent to the swp)
-u16 vl70_state::adc_al_r()
-{
-	return 0;
-}
-
 // Put the host switch to pure midi
 u16 vl70_state::adc_midisw_r()
 {
-- 
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