Please help me fix my code so it does the following. Atmel assembly only for 324p

Write assembly code so that when switch on PB0 is on the LEDs sequentially light up starting at PA0 through PA7. In the same code when switch on PD1 is on the LEDs sequentially light up starting at PA7 through PA0.

In both cases use a subroutine for a 1 second DELAY between sequentially turning on the LEDs

.equ CLEAR = 0// Equates variable 'CLEAR' to value '0'

.equ ALL_OUTPUT = 0xFF// Equates variable 'ALL_OUTPUT' to value '0xFF'

.def TEMP = r16// Defines variable 'TEMP' for register 'r16'

// SETUP

ldi TEMP, ALL_OUTPUT// Loads '0xFF' into 'r16'

out DDRB, TEMP// Outputs value from 'r16' into 'DDRB'

// STACK POINTER INITIALIZATION

ldi TEMP, low(RAMEND)// Loads low-byte end of SRAM location

out SPL, TEMP// Outputs value from 'r16' into stack pointer's low-byte

ldi TEMP, high(RAMEND)// Loads high-byte end of SRAM location

out SPH, TEMP// Outputs value from 'r16' into stack pointer's high-byte

ldi TEMP, CLEAR// Loads '0' into 'r16'

MAIN:// Label for main function

LDI R20, 0xFF

OUT DDRB, R20;make PORTB an output port

SBI PORTB,0;set bit PD0

CALL DELAY;DELAY before next one

CBI PORTB,0;clear bit PD0

SBI PORTB,1;turn on PD1

CALL DELAY;DELAY before next one

CBI PORTB,1;clear bit PD1

SBI PORTB,2;turn on PD2

CALL DELAY

CBI PORTB,2;clear bit PD2

SBI PORTB,3

CALL DELAY

CBI PORTB,3;clear bit PD3

SBI PORTB,4

CALL DELAY

CBI PORTB,4;clear bit PD4

SBI PORTB,5

CALL DELAY

CBI PORTB,5;clear bit PD1

SBI PORTB,6

CALL DELAY

CBI PORTB,6;clear bit PD1

SBI PORTB,7

CALL DELAY

CBI PORTB,7;clear bit PD7

DELAY:// Label for DELAY function

.equ COUNT = 9999// Each unit represents 0.5us for 8MHz clock

.equ PRESCALER = 200// Multiplies the counter

ldi r23, PRESCALER// r23 off time count

L1:

ldi r24, COUNT%256// r24 off time count

ldi r25, COUNT/256// r25 off time count

L2:

subi r24, 1// Decrement off time count

sbci r25, 0// Upper byte

brne L2// Loop until zero

dec r23// Decrement number of repeats

brne L1// Loop until zero

ret// Finish DELAY and return