diff --git a/src/cursor.c b/src/cursor.c
index 77b69e5..6961bc5 100644
--- a/src/cursor.c
+++ b/src/cursor.c
@@ -2,6 +2,8 @@
 
 #include "io.h"
 
+static uint8_t r10 = 0;
+
 void cursor_setRaw(uint16_t address) {
     io_out(0xA0, 14);
     io_out(0xA1, (address >> 8) & 0xff);
@@ -15,8 +17,10 @@ void cursor_setXY(uint8_t x, uint8_t y) {
 
 void cursor_setStartRaster(uint8_t start) {
     start &= 0x1f;
+    r10 &= ~0x1f;
+    r10 |= start;
     io_out(0xA0, 10);
-    io_out(0xA1, start);
+    io_out(0xA1, r10);
 }
 
 void cursor_setEndRaster(uint8_t end) {
@@ -33,4 +37,12 @@ void cursor_enable(bool enable) {
         cursor_setStartRaster(0xd);
         cursor_setEndRaster(0x0);
     }
-}
\ No newline at end of file
+}
+
+void cursor_blink(enum cursor_blink_t blink) {
+    blink &= 0x60;
+    r10 &= ~0x60;
+    r10 |= blink;
+    io_out(0xA0, 10);
+    io_out(0xA1, r10);
+}
diff --git a/src/cursor.h b/src/cursor.h
index a0ecc51..1174569 100644
--- a/src/cursor.h
+++ b/src/cursor.h
@@ -4,6 +4,12 @@
 #include <stdbool.h>
 #include <stdint.h>
 
+enum cursor_blink_t {
+    CURSOR_BLINK_NONE = 0x00,
+    CURSOR_BLINK_SLOW = 0x40,
+    CURSOR_BLINK_FAST = 0x60,
+};
+
 void cursor_setRaw(uint16_t address);
 
 void cursor_setXY(uint8_t x, uint8_t y);
@@ -14,4 +20,6 @@ void cursor_setEndRaster(uint8_t end);
 
 void cursor_enable(bool enable);
 
+void cursor_blink(enum cursor_blink_t blink);
+
 #endif