diff --git a/avr/send.c b/avr/send.c
index 96590ee..aa65eb3 100644
--- a/avr/send.c
+++ b/avr/send.c
@@ -12,20 +12,10 @@ static tabby_printer_response response;
 
 static uint8_t body[TABBY_PRINTER_PACKET_MAX_SIZE];
 
+static uint8_t sheet[TABBY_PRINTER_SHEET_SIZE];
+
 static uint16_t sum;
 
-/*
- * So like, we're abusing pins here.  So badly, it's beyond.  So here's
- * what's going down: We want to retain the same physical I/O connections
- * between both the sending and receiving flavors of the whole Game Boy
- * Printer endeavor, and that mean/s that we must absolutely bit bang MOSI
- * and MISO opposite from their ordinary roles.  The reason being: There is
- * no notion of MISO or MOSI from the Game Boy's (nor its peripherals')
- * point of view. The SI and SO pins over a link cable are crossed over, so
- * SI on one end always connects to SO on the other, and vice-versa.  The SI
- * and SO pins do not switch roles based on role, unlike on AVR SPI
- * implementations.
- */
 static void spi_init() {
     SC_OUTPUT();
     SO_OUTPUT();
diff --git a/include/tabby/avr.h b/include/tabby/avr.h
index 1b1d5bb..733d3eb 100644
--- a/include/tabby/avr.h
+++ b/include/tabby/avr.h
@@ -1,6 +1,19 @@
 #ifndef _TABBY_AVR_H
 #define _TABBY_AVR_H
 
+/*
+ * So like, we're abusing pins here.  So badly, it's beyond.  So here's
+ * what's going down: We want to retain the same physical I/O connections
+ * between both the sending and receiving flavors of the whole Game Boy
+ * Printer endeavor, and that mean/s that we must absolutely bit bang MOSI
+ * and MISO opposite from their ordinary roles.  The reason being: There is
+ * no notion of MISO or MOSI from the Game Boy's (nor its peripherals')
+ * point of view. The SI and SO pins over a link cable are crossed over, so
+ * SI on one end always connects to SO on the other, and vice-versa.  The SI
+ * and SO pins do not switch roles based on role, unlike on AVR SPI
+ * implementations.
+ */
+
 #define SPI_PULSE_USEC 61
 
 /*