diff --git a/cores/c16/c16.v b/cores/c16/c16.v
index 1bda274..62d057e 100644
--- a/cores/c16/c16.v
+++ b/cores/c16/c16.v
@@ -127,6 +127,7 @@ assign kbus[7] = kbus_kbd[7] & joy1_sel[4];
 	);
 
 // TED 8360 instance	
+wire irq_n, cpuclk, cs0, cs1;
 
 ted mos8360(
 	.clk(CLK28),
@@ -234,7 +235,7 @@ always @(posedge CLK28)		// reset tries to emulate the length of a real reset
 		if(resetcounter==24'd16777215)
 			sreset<=0;
 		else begin
-			resetcounter<=resetcounter+1;
+			resetcounter<=resetcounter+1'd1;
 			sreset<=1;
 			end
 		end
diff --git a/cores/c16/c16_mist.qsf b/cores/c16/c16_mist.qsf
index 31ba997..e30e3a7 100644
--- a/cores/c16/c16_mist.qsf
+++ b/cores/c16/c16_mist.qsf
@@ -330,8 +330,8 @@ set_instance_assignment -name CURRENT_STRENGTH_NEW 4MA -to VGA_B[3]
 set_instance_assignment -name CURRENT_STRENGTH_NEW 4MA -to VGA_B[2]
 set_instance_assignment -name CURRENT_STRENGTH_NEW 4MA -to VGA_B[1]
 set_instance_assignment -name CURRENT_STRENGTH_NEW 4MA -to VGA_B[0]
-set_instance_assignment -name CURRENT_STRENGTH_NEW 4MA -to VGA_HS
-set_instance_assignment -name CURRENT_STRENGTH_NEW 4MA -to VGA_VS
+set_instance_assignment -name CURRENT_STRENGTH_NEW 8MA -to VGA_HS
+set_instance_assignment -name CURRENT_STRENGTH_NEW 8MA -to VGA_VS
 set_instance_assignment -name CURRENT_STRENGTH_NEW 4MA -to LED
 set_instance_assignment -name CURRENT_STRENGTH_NEW 4MA -to AUDIO_L
 set_instance_assignment -name CURRENT_STRENGTH_NEW 4MA -to AUDIO_R
@@ -357,6 +357,7 @@ set_global_assignment -name VERILOG_FILE colors_to_rgb.v
 set_global_assignment -name VERILOG_FILE c16_mist.v
 set_global_assignment -name VERILOG_FILE c16_keymatrix.v
 set_global_assignment -name VERILOG_FILE c16.v
+set_global_assignment -name VERILOG_FILE ps2receiver.v
 set_global_assignment -name VERILOG_FILE basic_rom.v
 set_global_assignment -name VHDL_FILE c1541/gcr_floppy.vhd
 set_global_assignment -name VHDL_FILE c1541/spram.vhd
diff --git a/cores/c16/c16_mist.v b/cores/c16/c16_mist.v
index 373347c..c4a7d69 100644
--- a/cores/c16/c16_mist.v
+++ b/cores/c16/c16_mist.v
@@ -499,7 +499,7 @@ wire osd_clk = tv15khz?clk7:clk14;
 wire [5:0] red, green, blue;
 
 // include the on screen display
-osd #(11,0,5) osd (
+osd #(10'd11,10'd0,3'd5) osd (
    .clk_sys    ( clk28        ),
    .ce_pix     ( osd_clk      ),
 
diff --git a/cores/c16/osd.v b/cores/c16/osd.v
index cf32be8..9151d26 100644
--- a/cores/c16/osd.v
+++ b/cores/c16/osd.v
@@ -172,9 +172,9 @@ end
 
 // area in which OSD is being displayed
 wire [9:0] h_osd_start = h_dsp_ctr + OSD_X_OFFSET - (OSD_WIDTH >> 1);
-wire [9:0] h_osd_end   = h_dsp_ctr + OSD_X_OFFSET + (OSD_WIDTH >> 1) - 1;
+wire [9:0] h_osd_end   = h_dsp_ctr + OSD_X_OFFSET + (OSD_WIDTH >> 1) - 1'd1;
 wire [9:0] v_osd_start = v_dsp_ctr + OSD_Y_OFFSET - (doublescan ? OSD_HEIGHT : OSD_HEIGHT >> 1);
-wire [9:0] v_osd_end   = v_dsp_ctr + OSD_Y_OFFSET + (doublescan ? OSD_HEIGHT : OSD_HEIGHT >> 1) - 1;
+wire [9:0] v_osd_end   = v_dsp_ctr + OSD_Y_OFFSET + (doublescan ? OSD_HEIGHT : OSD_HEIGHT >> 1) - 1'd1;
 
 reg h_osd_active, v_osd_active;
 always @(posedge clk_sys) begin
diff --git a/cores/c16/ps2receiver.v b/cores/c16/ps2receiver.v
index e119f08..3e349a4 100644
--- a/cores/c16/ps2receiver.v
+++ b/cores/c16/ps2receiver.v
@@ -56,18 +56,18 @@ always @(posedge clk)
 	rx_done<=0;													// rx_done is active only for one clk cycle
 	if(watchdog==0)											// when watchdog timer expires, reset received bits
 		receivedbits<=0;
-	else watchdog<=watchdog-1;
+	else watchdog<=watchdog-1'd1;
 		
 	if(prev_ps2clkreg & ~ps2clkreg)						// falling edge of ps2 clock
 		begin
 		watchdog<=12'd2900;									// reload watchdog timer
 		shiftreg<={ps2_data,shiftreg[10:1]};
-		receivedbits<=receivedbits+1;
+		receivedbits<=receivedbits+1'd1;
 		end
 		
 	if(receivedbits==4'd11)
 		begin
-		ps2scancode<=shiftreg[9:1];
+		ps2scancode<=shiftreg[8:1];
 		rx_done<=1;
 		receivedbits<=0;
 		end