diff --git a/pat80-io-devices/composite-pal-adapter/software/avr-assembly/main.asm b/pat80-io-devices/composite-pal-adapter/software/avr-assembly/main.asm index d9cadda..1fb5229 100644 --- a/pat80-io-devices/composite-pal-adapter/software/avr-assembly/main.asm +++ b/pat80-io-devices/composite-pal-adapter/software/avr-assembly/main.asm @@ -1,5 +1,7 @@ ; VIDEO COMPOSITE PAL IO DEVICE ; Implemented following timings in http://blog.retroleum.co.uk/electronics-articles/pal-tv-timing-and-voltages/ +; Every line, for 52 times, it loads a byte from memory into PORTD register and then shifts the byte to the left to show another bit (do it 7 times) +; This also displays byte's MSB pixel "for free", as the video pin is PD7 (last bit of PORTD). .include "atmega1284definition.asm" @@ -23,16 +25,22 @@ main: out DDRD, r16 ; set port as output + + + + + + ;*** Load data into ram *** - ;ldi r27, 0x01 - ;ldi r26, 0x00 - ; load data - ldi r16, 255 + ; Set X to 0x0100 + ldi r27, 0x01 + clr r26 + + ldi r16, 0xFF ; counter load_mem_loop: - ldi r17, 1 - ;sts X, r17 - sts 0x0100, r17 - adiw XH:XL, 1 ; increment X + ;mov r17, r26 ; use XL as memory content (TODO replace with real content) + ldi r17, 0b10101010 + st X+, r17 dec r16 ; decrement outside counter brne load_mem_loop ; if not 0, repeat h_picture_loop @@ -40,17 +48,9 @@ main: v_refresh_loop: - ; reset memory position counter - ; ldi r16,0x00 - ; mov r0,r16 - ; ldi r16,0x01 - ; mov r1,r16 - ; mov XL,r0 - ; mov XH,r1 - - ; set X register to framebuffer start - ; ldi r27, 0x01 - ; ldi r26, 0x00 + ; set X register to framebuffer start 0x0100 + ldi r27, 0x01 + clr r26 ; start 5 long sync pulses call long_sync @@ -73,44 +73,43 @@ v_refresh_loop: h_picture_outer_loop: ldi r17, 152 ; line counter h_picture_loop: - call line_sync - ; start line pixels: 52uS, 1248 cycles @ 24Mhz - ldi r18, 52 ; 1 cycle - l_sync_video_loop: ; 24 cycles - ; Load a byte from memory into PORTD register and increment the counter. - ; This also displays byte's MSB pixel "for free", as the video pin is PD7 - ; (last bit of PORTD). - lds r19, 0x0100 ; 2 cycles - out PORTD, r19 ; 1 cycle - ; Shift the byte to the left to show another bit (do it 7 times) - rol r19 ; 1 cycle - out PORTD, r19 ; 1 cycle - nop ; 1 cycle - rol r19 ; 1 cycle - out PORTD, r19 ; 1 cycle - nop ; 1 cycle - rol r19 ; 1 cycle - out PORTD, r19 ; 1 cycle - nop ; 1 cycle - rol r19 ; 1 cycle - out PORTD, r19 ; 1 cycle - nop ; 1 cycle - rol r19 ; 1 cycle - out PORTD, r19 ; 1 cycle - nop ; 1 cycle - rol r19 ; 1 cycle - out PORTD, r19 ; 1 cycle - nop ; 1 cycle - dec r18 ; 1 cycle - brne l_sync_video_loop ; 2 cycles if jumps (1 if continues) - ; end line pixels + ; debug + ; sbi PORTC, DEBUG_PIN ; high + ; cbi PORTC, DEBUG_PIN ; low + ; debug - cbi PORTD, VIDEO_PIN ; video pin goes low before sync - dec r17 ; decrement line countr - brne h_picture_loop ; if not 0, repeat h_picture_loop + ; **** start line sync: 4uS, 96 cycles @ 24Mhz + cbi PORTD, VIDEO_PIN ; video pin goes low before sync ; 2 cycles + cbi PORTC, SYNC_PIN ; sync goes low (0v) ; 2 cycle + ldi r18, 31 ; 1 cycle + l_sync_pulse_loop: ; requires 3 cpu cycles + dec r18 ; 1 cycle + brne l_sync_pulse_loop ; 2 cycle if true, 1 if false + sbi PORTC, SYNC_PIN ; sync goes high (0.3v) + ; **** end line sync - dec r16 ; decrement outside counter - brne h_picture_outer_loop ; if not 0, repeat h_picture_loop + ; **** start line back porch: 8uS, 192 cycles @ 24Mhz + ; leave time at the end for line setup and draw_line call + ldi r18, 62 ; 1 cycle + l_sync_back_porch_loop: + dec r18 ; 1 cycle + brne l_sync_back_porch_loop ; 2 cycle if true, 1 if false + ; **** end back porch + + jmp draw_line ; 3 cycles (+ 3 to come back to on_line_drawn) + ; **** draws line pixels: 52uS, 1248 cycles @ 24Mhz **** + on_line_drawn: + + ; debug + ; sbi PORTC, DEBUG_PIN ; high + ; cbi PORTC, DEBUG_PIN ; low + ; debug + + dec r17 ; decrement line countr ; 1 cycle + brne h_picture_loop ; if not 0, repeat h_picture_loop ; 2 cycle if true, 1 if false + + dec r16 ; decrement outside counter ; 1 cycle + brne h_picture_outer_loop ; if not 0, repeat h_picture_loop ; 2 cycle if true, 1 if false ; end picture lines ; start 6 short sync pulses @@ -123,8 +122,8 @@ v_refresh_loop: ; end 6 short sync pulses ; debug - sbi PORTC, DEBUG_PIN ; high - cbi PORTC, DEBUG_PIN ; low + ; sbi PORTC, DEBUG_PIN ; high + ; cbi PORTC, DEBUG_PIN ; low ; debug jmp v_refresh_loop @@ -172,22 +171,1310 @@ short_sync: ret -line_sync: - ; line sync & front porch - ; start line sync: 4uS, 96 cycles @ 24Mhz - cbi PORTC, SYNC_PIN ; sync goes low (0v) ; 2 cycle - ldi r18, 32 ; 1 cycle - l_sync_pulse_loop: ; requires 3 cpu cycles - dec r18 ; 1 cycle - brne l_sync_pulse_loop ; 2 cycle if true, 1 if false - sbi PORTC, SYNC_PIN ; sync goes high (0.3v) - ; end line sync - ; start back porch: 8uS, 192 cycles @ 24Mhz - ldi r18, 64 ; 1 cycle - l_sync_back_porch_loop: - dec r18 ; 1 cycle - brne l_sync_back_porch_loop ; 2 cycle if true, 1 if false - ; end back porch +draw_line: + ; NO loops, as this is time-strict + ; 52 chunks of 8 pixels - ret \ No newline at end of file + ; chunk 1 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 2 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 3 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 4 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 5 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 6 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 7 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 8 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 9 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 10 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 11 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 12 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 13 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 14 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 15 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 16 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 17 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 18 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 19 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 20 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 21 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 22 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 23 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 24 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 25 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 26 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 27 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 28 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 29 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 30 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 31 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 32 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 33 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 34 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 35 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 36 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 37 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 38 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 39 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 40 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 41 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 42 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 43 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 44 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 45 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 46 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 47 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 48 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 49 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 50 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 51 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; chunk 52 + ld r19, X+ ; load pixel ; 2 cycles + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + nop ; 1 cycle + lsl r19 ; 1 cycle + out PORTD, r19 ; 1 cycle + + ; return + jmp on_line_drawn ; 3 cycle \ No newline at end of file