diff --git a/src/devices/cpu/psx/mdec.cpp b/src/devices/cpu/psx/mdec.cpp
index 4ef7d827ba281..3c72ee9e361ac 100644
--- a/src/devices/cpu/psx/mdec.cpp
+++ b/src/devices/cpu/psx/mdec.cpp
@@ -63,14 +63,17 @@ void psxmdec_device::device_start()
 		p_n_b5[ n + 512 ] = ( 255 >> 3 ) << 10;
 	}
 
-	save_item( NAME( n_0_command ) );
-	save_item( NAME( n_0_address ) );
-	save_item( NAME( n_0_size ) );
-	save_item( NAME( n_1_command ) );
-	save_item( NAME( n_1_status ) );
-	save_item( NAME( p_n_quantize_y ) );
-	save_item( NAME( p_n_quantize_uv ) );
-	save_item( NAME( p_n_cos ) );
+	save_item(NAME(n_0_command));
+	save_item(NAME(n_0_address));
+	save_item(NAME(n_0_size));
+	save_item(NAME(n_1_command));
+	save_item(NAME(n_1_status));
+	save_item(NAME(p_n_quantize_y));
+	save_item(NAME(p_n_quantize_uv));
+	save_item(NAME(p_n_cos));
+	save_item(NAME(n_decoded));
+	save_item(NAME(n_offset));
+	save_item(NAME(p_n_output));
 }
 
 [[maybe_unused]] static inline void psxwriteword( uint32_t *p_n_psxram, uint32_t n_address, uint16_t n_data )
diff --git a/src/devices/cpu/psx/psx.cpp b/src/devices/cpu/psx/psx.cpp
index b658b9046d726..7240d119f5990 100644
--- a/src/devices/cpu/psx/psx.cpp
+++ b/src/devices/cpu/psx/psx.cpp
@@ -1840,27 +1840,39 @@ void psxcpu_device::device_start()
 	m_program->cache(m_instruction);
 	m_program->specific(m_data);
 
-	save_item( NAME( m_op ) );
-	save_item( NAME( m_pc ) );
-	save_item( NAME( m_delayv ) );
-	save_item( NAME( m_delayr ) );
-	save_item( NAME( m_hi ) );
-	save_item( NAME( m_lo ) );
-	save_item( NAME( m_biu ) );
-	save_item( NAME( m_r ) );
-	save_item( NAME( m_cp0r ) );
-	save_item( NAME( m_gte.m_cp2cr ) );
-	save_item( NAME( m_gte.m_cp2dr ) );
-	save_item( NAME( m_icacheTag ) );
-	save_item( NAME( m_icache ) );
-	save_item( NAME( m_dcache ) );
-	save_item( NAME( m_multiplier_operation ) );
-	save_item( NAME( m_multiplier_operand1 ) );
-	save_item( NAME( m_multiplier_operand2 ) );
-	save_item( NAME( m_exp_base ) );
-	save_item( NAME( m_exp_config ) );
-	save_item( NAME( m_ram_config ) );
-	save_item( NAME( m_rom_config ) );
+	save_item(NAME(m_op));
+	save_item(NAME(m_pc));
+	save_item(NAME(m_icount));
+	save_item(NAME(m_com_delay));
+	save_item(NAME(m_delayv));
+	save_item(NAME(m_delayr));
+	save_item(NAME(m_hi));
+	save_item(NAME(m_lo));
+	save_item(NAME(m_berr));
+	save_item(NAME(m_biu));
+	save_item(NAME(m_r));
+	save_item(NAME(m_cp0r));
+	save_item(NAME(m_gte.m_cp2cr));
+	save_item(NAME(m_gte.m_cp2dr));
+	save_item(NAME(m_sf));
+	save_item(NAME(m_mac0));
+	save_item(NAME(m_mac1));
+	save_item(NAME(m_mac2));
+	save_item(NAME(m_mac3));
+	save_item(NAME(m_icacheTag));
+	save_item(NAME(m_icache));
+	save_item(NAME(m_dcache));
+	save_item(NAME(m_multiplier_operation));
+	save_item(NAME(m_multiplier_operand1));
+	save_item(NAME(m_multiplier_operand2));
+	save_item(NAME(m_bus_attached));
+	save_item(NAME(m_bad_byte_address_mask));
+	save_item(NAME(m_bad_half_address_mask));
+	save_item(NAME(m_bad_word_address_mask));
+	save_item(NAME(m_exp_base));
+	save_item(NAME(m_exp_config));
+	save_item(NAME(m_ram_config));
+	save_item(NAME(m_rom_config));
 
 	state_add( STATE_GENPC, "GENPC", m_pc ).noshow();
 	state_add( STATE_GENPCBASE, "CURPC", m_pc ).noshow();
diff --git a/src/devices/sound/spu.cpp b/src/devices/sound/spu.cpp
index e6b5d2e5fa3c8..a169841f68e97 100644
--- a/src/devices/sound/spu.cpp
+++ b/src/devices/sound/spu.cpp
@@ -979,14 +979,25 @@ void spu_device::device_start()
 
 	// register save state stuff
 	save_item(NAME(reg));           // this covers all spureg.* plus the reverb parameter block
+	save_item(NAME(taddr));
 	save_item(NAME(xa_cnt));
 	save_item(NAME(cdda_cnt));
 	save_item(NAME(xa_freq));
 	save_item(NAME(cdda_freq));
 	save_item(NAME(xa_channels));
 	save_item(NAME(xa_spf));
+	save_item(NAME(xa_out_ptr));
 	save_item(NAME(cur_frame_sample));
 	save_item(NAME(cur_generate_sample));
+	save_item(NAME(dirty_flags));
+	save_item(NAME(m_cd_out_ptr));
+	save_item(NAME(xa_playing));
+	save_item(NAME(cdda_playing));
+	save_item(NAME(output_head));
+	save_item(NAME(output_tail));
+	save_item(NAME(output_size));
+	save_item(NAME(noise_t));
+	save_item(NAME(noise_cur));
 	save_pointer(NAME(spu_ram), spu_ram_size);
 
 	save_item(NAME(xa_buffer->head));
diff --git a/src/devices/video/psx.cpp b/src/devices/video/psx.cpp
index f791161eb2749..d7419e7834ced 100644
--- a/src/devices/video/psx.cpp
+++ b/src/devices/video/psx.cpp
@@ -626,6 +626,8 @@ void psxgpu_device::psx_gpu_init( int n_gputype )
 	save_item(NAME(n_gpuinfo));
 	save_item(NAME(n_lightgun_x));
 	save_item(NAME(n_lightgun_y));
+	save_item(NAME(n_screenwidth));
+	save_item(NAME(n_screenheight));
 	save_item(NAME(m_n_tx));
 	save_item(NAME(m_n_ty));
 	save_item(NAME(n_abr));
diff --git a/src/mame/sony/psxcd.cpp b/src/mame/sony/psxcd.cpp
index a21dee6b9fb1d..4ae81644c41d8 100644
--- a/src/mame/sony/psxcd.cpp
+++ b/src/mame/sony/psxcd.cpp
@@ -126,6 +126,13 @@ void psxcd_device::device_start()
 	save_item(NAME(m_transbuf));
 	save_item(NAME(loc.w));
 	save_item(NAME(curpos.w));
+	save_item(NAME(m_regs.sr));
+	save_item(NAME(m_regs.ir));
+	save_item(NAME(m_regs.imr));
+	save_item(NAME(m_regs.vol.ll));
+	save_item(NAME(m_regs.vol.lr));
+	save_item(NAME(m_regs.vol.rl));
+	save_item(NAME(m_regs.vol.rr));
 	save_item(NAME(open));
 	save_item(NAME(m_mute));
 	save_item(NAME(m_dmaload));
@@ -133,6 +140,7 @@ void psxcd_device::device_start()
 	save_item(NAME(next_sector_t));
 	save_item(NAME(autopause_sector));
 	save_item(NAME(m_param_count));
+	save_item(NAME(m_timerinuse));
 }
 
 void psxcd_device::device_stop()