diff --git a/Apple2/Firmware.asm b/Apple2/Firmware.asm
index cfbb583..c60f7a6 100644
--- a/Apple2/Firmware.asm
+++ b/Apple2/Firmware.asm
@@ -147,31 +147,37 @@ SendByte:
  pha 
 waitWrite: 
  lda InputFlags,x
- asl ;Second highest bit goes low when ready
- bmi waitWrite
+ ror
+ ror ;Second lowest bit goes low when ready
+ bcs waitWrite
  pla
  sta OutputByte,x
+ lda #$0e ; set bit 0 low to indicate write started
+ sta OutputFlags,x 
 finishWrite:
  lda InputFlags,x
- asl
- bpl finishWrite
- lda #$FF
+ ror
+ ror
+ bcc finishWrite
+ lda #$0f
  sta OutputFlags,x
  rts
 
 GetByte:
- lda #$b0 ;set read flag low
+ lda #$0d ;set read flag low
  sta OutputFlags,x
 waitRead:
  lda InputFlags,x
- bmi waitRead
+ ror
+ bcs waitRead
  lda InputByte
  pha
- lda #$f0 ;set all flags high
+ lda #$0f ;set all flags high
  sta OutputFlags,x
 finishRead:
  lda InputFlags,x
- bpl finishRead
+ ror
+ bcc finishRead
  pla
 end:
  rts
diff --git a/Apple2/Firmware.bin b/Apple2/Firmware.bin
index 1b61fbd..02b250d 100644
Binary files a/Apple2/Firmware.bin and b/Apple2/Firmware.bin differ
diff --git a/Apple2/Firmware_27256_EPROM.bin b/Apple2/Firmware_27256_EPROM.bin
new file mode 100644
index 0000000..9d21953
Binary files /dev/null and b/Apple2/Firmware_27256_EPROM.bin differ
diff --git a/Apple2/driver_assemble.sh b/Apple2/driver_assemble.sh
index d2c46b2..3831a93 100755
--- a/Apple2/driver_assemble.sh
+++ b/Apple2/driver_assemble.sh
@@ -10,3 +10,9 @@ ca65 Firmware.asm -D STARTSLOT=\$c500 -o Slot5.o --listing Firmware5.lst
 ca65 Firmware.asm -D STARTSLOT=\$c600 -o Slot6.o --listing Firmware6.lst
 ca65 Firmware.asm -D STARTSLOT=\$c700 -o Slot7.o --listing Firmware7.lst
 ld65 Slot0.o Slot1.o Slot2.o Slot3.o Slot4.o Slot5.o Slot6.o Slot7.o -o Firmware.bin -t none
+cat \
+Firmware.bin Firmware.bin Firmware.bin Firmware.bin \
+Firmware.bin Firmware.bin Firmware.bin Firmware.bin \
+Firmware.bin Firmware.bin Firmware.bin Firmware.bin \
+Firmware.bin Firmware.bin Firmware.bin Firmware.bin \
+> Firmware_27256_EPROM.bin