Part 1) Positive 8-bit Integer Division

Can re-write the given division program using nested subroutines.

Can evaluate the content of the stack (correctly) during program execution.

.dseg .org Ox100 quotient: .byte 1 remainder: byte 1 .set count = 0 .cseg .equ dividend = 13 .equ divisor = 3 Vector Table (partial) reset: intov: .org 0x0 jmp main jmp intoh ;* MAIN entry point to program* main: .org 0x100 call init call getnums call test call divide jmp endmain lds r0,count sts quotient, r0 sts remainder, r0 endmain: init: getnums: r30, dividend r31, divisor test: testi: test2: Idi ldi ret cpi brne jmp cpi brne Idi sts sts jmp cp brne idi sts jmp brpl test3: test4: r30,0 test2 testi r31,0 test4 r30, OXEE quotient, 230 remainder, 230 test3 r30, r31 testo r30,1 quotient, 230 test5 tests r30 quotient, r30 remainder, 230 cest7 tests: testo: sts sts jmp test7: test8: divide: dividel: r0,count lds inc sub brp1 dec add r30, r31 dividel sts sts r30, r31 quotient, r0 remainder, r30 divide2: intoh: ret jmp .exit intoh .dseg .org Ox100 quotient: .byte 1 remainder: byte 1 .set count = 0 .cseg .equ dividend = 13 .equ divisor = 3 Vector Table (partial) reset: intov: .org 0x0 jmp main jmp intoh ;* MAIN entry point to program* main: .org 0x100 call init call getnums call test call divide jmp endmain lds r0,count sts quotient, r0 sts remainder, r0 endmain: init: getnums: r30, dividend r31, divisor test: testi: test2: Idi ldi ret cpi brne jmp cpi brne Idi sts sts jmp cp brne idi sts jmp brpl test3: test4: r30,0 test2 testi r31,0 test4 r30, OXEE quotient, 230 remainder, 230 test3 r30, r31 testo r30,1 quotient, 230 test5 tests r30 quotient, r30 remainder, 230 cest7 tests: testo: sts sts jmp test7: test8: divide: dividel: r0,count lds inc sub brp1 dec add r30, r31 dividel sts sts r30, r31 quotient, r0 remainder, r30 divide2: intoh: ret jmp .exit intoh