device_palette_interface: Make information overrides noexcept

src/devices/bus/gio64/newport.h

@@ -102,7 +102,7 @@ private:
 	virtual void device_reset() override;
 
 	// device_palette_interface overrides
-	virtual uint32_t palette_entries() const override { return 0x2000; }
+	virtual uint32_t palette_entries() const noexcept override { return 0x2000; }
 
 	// Initializers
 	void set_revision(uint32_t revision) { m_revision = revision; }

src/devices/bus/nubus/nubus_48gc.cpp

@@ -99,7 +99,7 @@ protected:
 	virtual void device_add_mconfig(machine_config &config) override;
 
 	// palette implementation
-	uint32_t palette_entries() const override;
+	uint32_t palette_entries() const noexcept override;
 
 private:
 	static constexpr offs_t VRAM_MAX = 0x10'0000 / 4; // chip supports 2M but card can only use 1M
@@ -309,7 +309,7 @@ ioport_constructor nubus_824gc_device::device_input_ports() const
 //  palette_entries - entries in color palette
 //-------------------------------------------------
 
-uint32_t jmfb_device::palette_entries() const
+uint32_t jmfb_device::palette_entries() const noexcept
 {
 	return 256;
 }

src/devices/bus/nubus/nubus_spec8.cpp

@@ -94,7 +94,7 @@ protected:
 	virtual ioport_constructor device_input_ports() const override;
 
 	// palette implementation
-	virtual uint32_t palette_entries() const override;
+	virtual uint32_t palette_entries() const noexcept override;
 
 	TIMER_CALLBACK_MEMBER(vbl_tick);
 
@@ -184,7 +184,7 @@ ioport_constructor nubus_spec8s3_device::device_input_ports() const
 //  palette_entries - entries in color palette
 //-------------------------------------------------
 
-uint32_t nubus_spec8s3_device::palette_entries() const
+uint32_t nubus_spec8s3_device::palette_entries() const noexcept
 {
 	return 256;
 }

src/devices/bus/nubus/nubus_specpdq.cpp

@@ -78,7 +78,7 @@ protected:
 	virtual ioport_constructor device_input_ports() const override;
 
 	// palette implementation
-	virtual uint32_t palette_entries() const override;
+	virtual uint32_t palette_entries() const noexcept override;
 
 	TIMER_CALLBACK_MEMBER(vbl_tick);
 
@@ -171,7 +171,7 @@ ioport_constructor nubus_specpdq_device::device_input_ports() const
 //  palette_entries - entries in color palette
 //-------------------------------------------------
 
-uint32_t nubus_specpdq_device::palette_entries() const
+uint32_t nubus_specpdq_device::palette_entries() const noexcept
 {
 	return 256;
 }

src/devices/machine/acorn_vidc.cpp

@@ -119,7 +119,7 @@ void acorn_vidc10_device::device_add_mconfig(machine_config &config)
 	}
 }
 
-u32 acorn_vidc10_device::palette_entries() const
+u32 acorn_vidc10_device::palette_entries() const noexcept
 {
 	return 0x100+0x10+4; // 8bpp + 1/2/4bpp + 2bpp for cursor
 }
@@ -605,7 +605,7 @@ void arm_vidc20_device::device_config_complete()
 		screen().set_screen_update(*this, FUNC(arm_vidc20_device::screen_update));
 }
 
-u32 arm_vidc20_device::palette_entries() const
+u32 arm_vidc20_device::palette_entries() const noexcept
 {
 	return 0x100+4; // 8bpp + 2bpp for cursor
 }

src/devices/machine/acorn_vidc.h

@@ -54,7 +54,7 @@ protected:
 	// device-level overrides
 	//virtual void device_validity_check(validity_checker &valid) const override;
 	virtual void device_add_mconfig(machine_config &config) override;
-	virtual u32 palette_entries() const override;
+	virtual u32 palette_entries() const noexcept override;
 	virtual void device_config_complete() override;
 	virtual void device_start() override;
 	virtual void device_reset() override;
@@ -160,7 +160,7 @@ public:
 protected:
 	virtual void device_add_mconfig(machine_config &config) override;
 	void regs_map(address_map &map);
-	virtual u32 palette_entries() const override;
+	virtual u32 palette_entries() const noexcept override;
 	virtual void device_start() override;
 	virtual void device_reset() override;
 	virtual void device_config_complete() override;

src/devices/video/bt459.h

@@ -197,7 +197,7 @@ protected:
 	virtual void device_start() override;
 	virtual void device_reset() override;
 
-	virtual u32 palette_entries() const override { return BT459_PIXEL_COLORS + BT459_OVERLAY_COLORS + BT459_CURSOR_COLORS; }
+	virtual u32 palette_entries() const noexcept override { return BT459_PIXEL_COLORS + BT459_OVERLAY_COLORS + BT459_CURSOR_COLORS; }
 
 private:
 	// helper functions

src/devices/video/bt45x.h

@@ -84,7 +84,7 @@ protected:
 
 	virtual void device_start() override;
 
-	virtual u32 palette_entries() const override { return m_palette_colors + m_overlay_colors; }
+	virtual u32 palette_entries() const noexcept override { return m_palette_colors + m_overlay_colors; }
 
 	virtual u8 palette_r(address_space &space) override;
 	virtual void palette_w(u8 data) override;

src/devices/video/bt47x.h

@@ -23,7 +23,7 @@ protected:
 	virtual void device_start() override;
 
 	// device_palette_interface overrides
-	virtual u32 palette_entries() const override { return m_palette_colors + m_overlay_colors; }
+	virtual u32 palette_entries() const noexcept override { return m_palette_colors + m_overlay_colors; }
 
 	// read/write handlers
 	u8 address_r();

src/devices/video/huc6260.h

@@ -44,7 +44,7 @@ protected:
 	virtual void device_start() override;
 	virtual void device_reset() override;
 
-	virtual uint32_t palette_entries() const override { return PALETTE_SIZE; }
+	virtual uint32_t palette_entries() const noexcept override { return PALETTE_SIZE; }
 
 	TIMER_CALLBACK_MEMBER(update_events);
 

src/devices/video/ims_cvc.h

@@ -31,7 +31,7 @@ protected:
 	virtual void device_reset() override;
 
 	// device_palette_interface overrides
-	virtual u32 palette_entries() const override { return 256; }
+	virtual u32 palette_entries() const noexcept override { return 256; }
 
 	virtual void boot_w(u32 data) { m_boot = data & MASK24; }
 
@@ -176,7 +176,7 @@ protected:
 	virtual void device_reset() override;
 
 	// device_palette_interface overrides
-	virtual u32 palette_entries() const override { return 256 + 3; }
+	virtual u32 palette_entries() const noexcept override { return 256 + 3; }
 
 	virtual void microport_map(address_map &map);
 

src/devices/video/mc6845.h

@@ -428,7 +428,7 @@ protected:
 	virtual space_config_vector memory_space_config() const override;
 
 	// device_palette_interface overrides
-	virtual uint32_t palette_entries() const override { return 16; }
+	virtual uint32_t palette_entries() const noexcept override { return 16; }
 
 	TIMER_CALLBACK_MEMBER(block_copy_tick);
 

src/devices/video/nereid.h

@@ -19,7 +19,7 @@ protected:
 	nereid_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
 	virtual void device_start() override;
 	virtual void device_reset() override;
-	virtual u32 palette_entries() const override { return 0x200; }
+	virtual u32 palette_entries() const noexcept override { return 0x200; }
 
 private:
 	static constexpr int NEREID_BUSY=1;

src/devices/video/pc_vga.h

@@ -64,7 +64,7 @@ protected:
 	virtual void device_reset() override;
 
 	// device_palette_interface overrides
-	virtual uint32_t palette_entries() const override { return 0x100; }
+	virtual uint32_t palette_entries() const noexcept override { return 0x100; }
 
 	void vga_vh_text(bitmap_rgb32 &bitmap, const rectangle &cliprect);
 	void vga_vh_ega(bitmap_rgb32 &bitmap,  const rectangle &cliprect);

src/devices/video/psx.h

@@ -54,7 +54,7 @@ protected:
 	virtual void device_config_complete() override;
 
 	// device_palette_interface overrides
-	virtual uint32_t palette_entries() const override { return 32*32*32*2; }
+	virtual uint32_t palette_entries() const noexcept override { return 32*32*32*2; }
 
 	int vramSize;
 

src/devices/video/snes_ppu.h

@@ -315,8 +315,8 @@ protected:
 
 	// device_palette_interface overrides
 	// 256 word CG RAM data (0x000-0x0ff), 8 group of direct colours (0x100-0x8ff), Fixed color (0x900)
-	virtual uint32_t palette_entries() const override { return 0x100 + (0x100 * 8) + 1; }
-	virtual uint32_t palette_indirect_entries() const override { return 32 * 32 * 32; } // 15 bit BGR
+	virtual uint32_t palette_entries() const noexcept override { return 0x100 + (0x100 * 8) + 1; }
+	virtual uint32_t palette_indirect_entries() const noexcept override { return 32 * 32 * 32; } // 15 bit BGR
 
 private:
 	static constexpr uint16_t DIRECT_COLOUR = 0x100; // Position in palette entry for direct colour

src/devices/video/tlc34076.h

@@ -50,7 +50,7 @@ protected:
 	virtual void device_reset() override;
 
 	// device_palette_interface overrides
-	virtual uint32_t palette_entries() const override { return 0x100; }
+	virtual uint32_t palette_entries() const noexcept override { return 0x100; }
 
 private:
 	// internal helpers

src/devices/video/tms9928a.h

@@ -100,7 +100,7 @@ protected:
 	virtual space_config_vector memory_space_config() const override;
 
 	// device_palette_interface overrides
-	virtual uint32_t palette_entries() const override { return 16; }
+	virtual uint32_t palette_entries() const noexcept override { return 16; }
 
 	TIMER_CALLBACK_MEMBER(clock_grom);
 	TIMER_CALLBACK_MEMBER(update_line);

src/devices/video/v9938.h

@@ -105,7 +105,7 @@ protected:
 	virtual space_config_vector memory_space_config() const override;
 
 	virtual void palette_init() = 0;
-	virtual u32 palette_entries() const override { return 16 + 256; }
+	virtual u32 palette_entries() const noexcept override { return 16 + 256; }
 
 	TIMER_CALLBACK_MEMBER(update_line);
 

src/devices/video/vic4567.h

@@ -134,7 +134,7 @@ protected:
 	virtual void device_reset() override;
 
 	// device_palette_interface override
-	virtual uint32_t palette_entries() const override { return 0x100; }
+	virtual uint32_t palette_entries() const noexcept override { return 0x100; }
 
 private:
 	static constexpr unsigned SPRITE_BASE_X_SIZE = 24;

src/emu/dipalette.h

@@ -43,8 +43,8 @@ class device_palette_interface : public device_interface
 
 public:
 	// getters
-	u32 entries() const { return palette_entries(); }
-	u32 indirect_entries() const { return palette_indirect_entries(); }
+	u32 entries() const noexcept { return palette_entries(); }
+	u32 indirect_entries() const noexcept { return palette_indirect_entries(); }
 	palette_t *palette() const { return m_palette; }
 	const pen_t &pen(int index) const { return m_pens[index]; }
 	const pen_t *pens() const { return m_pens; }
@@ -53,8 +53,8 @@ public:
 	double pen_contrast(pen_t pen) const { return m_palette->entry_contrast(pen); }
 	pen_t black_pen() const { return m_black_pen; }
 	pen_t white_pen() const { return m_white_pen; }
-	bool shadows_enabled() const { return palette_shadows_enabled(); }
-	bool hilights_enabled() const { return palette_hilights_enabled(); }
+	bool shadows_enabled() const noexcept { return palette_shadows_enabled(); }
+	bool hilights_enabled() const noexcept { return palette_hilights_enabled(); }
 
 	// setters
 	void set_pen_color(pen_t pen, rgb_t rgb) { m_palette->entry_set_color(pen, rgb); }
@@ -92,10 +92,10 @@ protected:
 	virtual void interface_post_stop() override;
 
 	// configuration-related overrides
-	virtual u32 palette_entries() const = 0;
-	virtual u32 palette_indirect_entries() const { return 0; }
-	virtual bool palette_shadows_enabled() const { return false; }
-	virtual bool palette_hilights_enabled() const { return false; }
+	virtual u32 palette_entries() const noexcept = 0;
+	virtual u32 palette_indirect_entries() const noexcept { return 0; }
+	virtual bool palette_shadows_enabled() const noexcept { return false; }
+	virtual bool palette_hilights_enabled() const noexcept { return false; }
 
 private:
 	// internal helpers

src/emu/emupal.h

@@ -373,10 +373,10 @@ protected:
 	virtual void device_start() override;
 
 	// device_palette_interface overrides
-	virtual u32 palette_entries() const override { return m_entries; }
-	virtual u32 palette_indirect_entries() const override { return m_indirect_entries; }
-	virtual bool palette_shadows_enabled() const override { return m_enable_shadows; }
-	virtual bool palette_hilights_enabled() const override { return m_enable_hilights; }
+	virtual u32 palette_entries() const noexcept override { return m_entries; }
+	virtual u32 palette_indirect_entries() const noexcept override { return m_indirect_entries; }
+	virtual bool palette_shadows_enabled() const noexcept override { return m_enable_shadows; }
+	virtual bool palette_hilights_enabled() const noexcept override { return m_enable_hilights; }
 
 	// generic palette init routines
 	void palette_init_all_black(palette_device &palette);

src/mame/agat/agat7.h

@@ -41,7 +41,7 @@ protected:
 	virtual void device_reset() override;
 	virtual void device_add_mconfig(machine_config &config) override;
 
-	virtual u32 palette_entries() const override { return 16; }
+	virtual u32 palette_entries() const noexcept override { return 16; }
 
 	void text_update_lores(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect, int beginrow, int endrow);
 	void text_update_hires(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect, int beginrow, int endrow);

src/mame/agat/agat9.h

@@ -49,7 +49,7 @@ protected:
 	virtual void device_reset() override;
 	virtual void device_add_mconfig(machine_config &config) override;
 
-	virtual u32 palette_entries() const override { return 16; }
+	virtual u32 palette_entries() const noexcept override { return 16; }
 
 	void text_update_lores(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect, int beginrow, int endrow);
 	void text_update_hires(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect, int beginrow, int endrow);

src/mame/apple/apple2video.cpp

@@ -1343,7 +1343,7 @@ void a2_video_device::init_palette()
 		set_pen_color(i, apple2_palette[i]);
 }
 
-uint32_t a2_video_device::palette_entries() const
+uint32_t a2_video_device::palette_entries() const noexcept
 {
 	return std::size(apple2_palette);
 }

src/mame/apple/apple2video.h

@@ -69,7 +69,7 @@ protected:
 	virtual void device_reset() override;
 	virtual void device_start() override;
 
-	virtual uint32_t palette_entries() const override;
+	virtual uint32_t palette_entries() const noexcept override;
 	void init_palette();
 
 private:

src/mame/atari/atarist_v.h

@@ -56,7 +56,7 @@ protected:
 	virtual void device_resolve_objects() override;
 	virtual void device_start() override;
 	virtual void device_reset() override;
-	virtual uint32_t palette_entries() const override { return 16; }
+	virtual uint32_t palette_entries() const noexcept override { return 16; }
 
 private:
 	inline pen_t shift_mode_0();
@@ -118,7 +118,7 @@ public:
 
 protected:
 	virtual void device_start() override;
-	virtual uint32_t palette_entries() const override { return 512; }
+	virtual uint32_t palette_entries() const noexcept override { return 512; }
 
 private:
 	// shifter state

src/mame/atari/tia.h

@@ -61,7 +61,7 @@ protected:
 	virtual void device_reset() override;
 
 	// device_palette_interface overrides
-	virtual uint32_t palette_entries() const override { return TIA_PALETTE_LENGTH; }
+	virtual uint32_t palette_entries() const noexcept override { return TIA_PALETTE_LENGTH; }
 
 	void extend_palette();
 	virtual void init_palette() = 0;

src/mame/dataeast/deco_ace.h

@@ -43,7 +43,7 @@ protected:
 	virtual void device_post_load() override;
 
 	// device_palette_interface overrides
-	virtual uint32_t palette_entries() const override { return 2048 * 2; }
+	virtual uint32_t palette_entries() const noexcept override { return 2048 * 2; }
 
 private:
 	// internal state

src/mame/dataeast/decrmc3.h

@@ -87,8 +87,8 @@ protected:
 	virtual void device_start() override;
 
 	// device_palette_interface overrides
-	virtual u32 palette_entries() const override { return m_entries; }
-	virtual u32 palette_indirect_entries() const override { return m_indirect_entries; }
+	virtual u32 palette_entries() const noexcept override { return m_entries; }
+	virtual u32 palette_indirect_entries() const noexcept override { return m_indirect_entries; }
 
 private:
 	void update_for_write(offs_t byte_offset, int bytes_modified, bool indirect = false);

src/mame/kaneko/kaneko_grap2.h

@@ -74,7 +74,7 @@ protected:
 	virtual void rom_bank_updated() override;
 
 	// device_palette_interface overrides
-	virtual uint32_t palette_entries() const override { return PALETTE_SIZE; }
+	virtual uint32_t palette_entries() const noexcept override { return PALETTE_SIZE; }
 };
 
 

src/mame/namco/namco_c116.h

@@ -34,8 +34,8 @@ protected:
 	virtual void device_start() override;
 
 	// device_palette_interface overrides
-	virtual uint32_t palette_entries() const override { return 0x2000; }
-	virtual bool palette_shadows_enabled() const override { return m_enable_shadows; }
+	virtual uint32_t palette_entries() const noexcept override { return 0x2000; }
+	virtual bool palette_shadows_enabled() const noexcept override { return m_enable_shadows; }
 
 private:
 	// internal state

src/mame/namco/ygv608.h

@@ -103,7 +103,7 @@ protected:
 
 	virtual space_config_vector memory_space_config() const override;
 
-	virtual uint32_t palette_entries() const override { return 256; }
+	virtual uint32_t palette_entries() const noexcept override { return 256; }
 
 	TIMER_CALLBACK_MEMBER(update_vblank_flag);
 	TIMER_CALLBACK_MEMBER(update_raster_flag);

src/mame/sgi/sgi_xmap2.h

@@ -18,7 +18,7 @@ public:
 	virtual void device_reset() override;
 
 	// device_palette_interface overrides
-	virtual u32 palette_entries() const override { return 4096 + 16; }
+	virtual u32 palette_entries() const noexcept override { return 4096 + 16; }
 
 	u8 reg_r(offs_t offset);
 	void reg_w(offs_t offset, u8 data);

src/mame/shared/alpha68k_palette.h

@@ -45,7 +45,7 @@ protected:
 	virtual void device_start() override;
 	virtual void device_reset() override;
 
-	virtual uint32_t palette_entries() const override { return m_entries; }
+	virtual uint32_t palette_entries() const noexcept override { return m_entries; }
 private:
 	std::vector<uint16_t> m_paletteram;
 	u32 m_entries = 0;

src/mame/shared/mega32x.h

@@ -107,7 +107,7 @@ protected:
 	virtual void device_add_mconfig(machine_config &config) override;
 
 	// device_palette_interface overrides
-	virtual uint32_t palette_entries() const override { return 32*32*32/**2*/; }
+	virtual uint32_t palette_entries() const noexcept override { return 32*32*32/**2*/; }
 
 	// device_sound_interface overrides
 	virtual void sound_stream_update(sound_stream &stream, std::vector<read_stream_view> const &inputs, std::vector<write_stream_view> &outputs) override;

src/mame/taito/tc0110pcr.h

@@ -26,7 +26,7 @@ protected:
 	virtual void device_post_load() override;
 
 	// device_palette_interface overrides
-	virtual u32 palette_entries() const override { return TC0110PCR_RAM_SIZE; }
+	virtual u32 palette_entries() const noexcept override { return TC0110PCR_RAM_SIZE; }
 
 private:
 	static const unsigned TC0110PCR_RAM_SIZE = 0x2000 / 2;