From 87bf87dae8ac66290d062de10dc93755aaa22b64 Mon Sep 17 00:00:00 2001
From: arbee <rb6502@users.noreply.github.com>
Date: Sat, 27 Mar 2021 20:53:33 -0400
Subject: [PATCH] mac.cpp: cleanup some leftover PowerMac bits [R. Belmont]

---
 src/mame/drivers/mac.cpp | 44 ----------------------------------------
 src/mame/includes/mac.h  |  6 ------
 2 files changed, 50 deletions(-)

diff --git a/src/mame/drivers/mac.cpp b/src/mame/drivers/mac.cpp
index 9719cddf135..9d9ac6307e3 100644
--- a/src/mame/drivers/mac.cpp
+++ b/src/mame/drivers/mac.cpp
@@ -443,50 +443,6 @@ void mac_state::swimiop_w(offs_t offset, uint8_t data)
 //  printf("swimiop_w %x @ %x (PC=%x)\n", data, offset, m_maincpu->pc());
 }
 
-uint8_t mac_state::pmac_diag_r(offs_t offset)
-{
-	switch (offset)
-	{
-		case 0: // return 0 here to get the 'car crash' sound after the boot bong, 1 otherwise
-			return 1;
-	}
-
-	return 0;
-}
-
-uint8_t mac_state::amic_dma_r()
-{
-	return 0;
-}
-
-void mac_state::amic_dma_w(offs_t offset, uint8_t data)
-{
-//  printf("amic_dma_w: %02x at %x (PC=%x)\n", data, offset+0x1000, m_maincpu->pc());
-}
-
-// HMC has one register: a 35-bit shift register which is accessed one bit at a time (see pmac6100 code at 4030383c which makes this obvious)
-uint8_t mac_state::hmc_r()
-{
-	uint8_t rv = (uint8_t)(m_hmc_shiftout&1);
-	m_hmc_shiftout>>= 1;
-	return rv;
-}
-
-void mac_state::hmc_w(offs_t offset, uint8_t data)
-{
-	// writes to xxx8 reset the bit shift position
-	if ((offset&0x8) == 8)
-	{
-		m_hmc_shiftout = m_hmc_reg;
-	}
-	else
-	{
-		uint64_t temp = (data & 1) ? 0x400000000U : 0x0U;
-		m_hmc_reg >>= 1;
-		m_hmc_reg |= temp;
-	}
-}
-
 /***************************************************************************
     ADDRESS MAPS
 ***************************************************************************/
diff --git a/src/mame/includes/mac.h b/src/mame/includes/mac.h
index d4667de34d8..8088178b114 100644
--- a/src/mame/includes/mac.h
+++ b/src/mame/includes/mac.h
@@ -339,12 +339,6 @@ private:
 	uint8_t scciop_r(offs_t offset);
 	void scciop_w(offs_t offset, uint8_t data);
 
-	uint8_t hmc_r();
-	void hmc_w(offs_t offset, uint8_t data);
-	uint8_t amic_dma_r();
-	void amic_dma_w(offs_t offset, uint8_t data);
-	uint8_t pmac_diag_r(offs_t offset);
-
 	DECLARE_WRITE_LINE_MEMBER(nubus_irq_9_w);
 	DECLARE_WRITE_LINE_MEMBER(nubus_irq_a_w);
 	DECLARE_WRITE_LINE_MEMBER(nubus_irq_b_w);