diff --git a/src/mame/drivers/tv990.cpp b/src/mame/drivers/tv990.cpp
index eaf42c3f9c4..dc36e1a3cbe 100644
--- a/src/mame/drivers/tv990.cpp
+++ b/src/mame/drivers/tv990.cpp
@@ -219,13 +219,16 @@ uint32_t tv990_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap,
 			if((y < starty) || (y >= endy))
 				continue;
 
-			curchar = &vram[tvi1111_regs[i + 0x50]];
+			uint16_t row_offset = tvi1111_regs[i + 0x50];
+			curchar = &vram[row_offset];
 			int minx = tvi1111_regs[i + 0x30] >> 8;
 			int maxx = tvi1111_regs[i + 0x30] & 0xff;
 
 			if(maxx > m_width)
 				maxx = m_width;
 
+			uint16_t cursor_x = tvi1111_regs[0x16] - row_offset;
+
 			for (x = minx; x < maxx; x++)
 			{
 				uint8_t chr = curchar[x - minx] >> 8;
@@ -237,8 +240,7 @@ uint32_t tv990_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap,
 
 				uint32_t palette[2];
 
-				int cursor_pos = tvi1111_regs[0x16] + 133;
-				if(BIT(tvi1111_regs[0x1b], 0) && (x == (cursor_pos % 134)) && (y == (cursor_pos / 134)))
+				if (BIT(tvi1111_regs[0x1b], 0) && x == cursor_x)
 				{
 					uint8_t attrchg;
 					if(tvi1111_regs[0x15] & 0xff00) // what does this really mean? it looks like a mask but that doesn't work in 8line char mode