// R0 = dividend, R1 = divisor
main:
	movi    R0, #0x41
	movi    R1, #0x0d
	movi    R2, #0
	movi    R3, #0
	movi    R4, #0
	movi    R5, #0
	movi    R6, #0
	movis   R6, #0xe0
	bl      R7, is_divisible_by_assembly

	/*
	 * If your PART 1 code works, then when the CPU halts:
	 *   - register r0 holds 0x0000
	 *   - registers r2, r3, r4, and r5 hold 0x0000
	 *   - register r6 is 0xe000
	 *   - at address 0xffff is the value 0xffff
	 */
	halt   #0x7ff


/*** --- DO NOT EDIT THIS LINE OR ANYTHING ABOVE THIS LINE --- ***/

/* YOUR FILE-HEADER COMMENT HERE */

is_divisible_by_assembly:

/**
 * Calculate if the dividend is evenly divisible by the divisor.
 *
 * <strong>SPECIAL RESTRICTION</strong>: This assembly function may
 * not use multiplication, division, or modulo division operator.
 *
 * Note: a dividend of zero is always divisible by the divisor.
 *
 * Return 1 if the dividend is evenly divided, 0 otherwise.
 *
 * As a reminder, ULNAv2-B uses this calling convention:
 *   R0 - holds first function parameter, and holds return value
 *   R1 - holds second function parameter
 *   R2, R3, R4, R5 - callee saved
 *   R6 - stack pointer
 *   R7 - link register (holds return address)
 * You are responsible for preserving registers R3-R5, and restoring
 * the stack when you are done.
 */

/* YOUR PART 1 CODE HERE */

	br R7