please help in spark assembly Objective:To learnhow touse loops, if-statement, t

Question

please help in spark assembly

Objective:To learnhow touse loops, if-statement, to representvariables and array in the stack, to load and store data from and into the stack and to use gdb.

Requirements:

1.Translate the following C code into SPARC assembly language program. All variablesare to be allocated space on the stack without using macros. In the program you aretouse only registers %o0 and %o1. All variables are to be accessed from the stacksuch that at any time during program execution the latest values of the variables are located on the stack. You are toexecute the statements in the order given. Donot try to optimize your code(i.e. do not remove nops).

char ca;

short sb;

int ic;

char cd;

short se;

int ig;

ca = 17;

cd = ca + 23

ic = -63 + ca

ig = ic + cd

sb = ic / ca

se = cd *sb + ic

Note: -Run your programs using gdb to verify value of updated variables after each calculation-Use correct versions of load and store commands for data of different sizes.-Use correct versions of examine command of gdb to verify results: (ex: x/db for printing a byte memory variable in signed decimal form)

Explanation / Answer

Answer:

MIPS Assembly Language Code:

.zero 1
main:
push rbp
mov rbp, rsp
mov BYTE PTR [rbp-1], 17
movzx eax, BYTE PTR [rbp-1]
add eax, 23
mov BYTE PTR [rbp-2], al
movsx eax, BYTE PTR [rbp-1]
sub eax, 63
mov DWORD PTR [rbp-8], eax
movsx edx, BYTE PTR [rbp-2]
mov eax, DWORD PTR [rbp-8]
add eax, edx
mov DWORD PTR [rbp-12], eax
movsx ecx, BYTE PTR [rbp-1]
mov eax, DWORD PTR [rbp-8]
cdq
idiv ecx
mov WORD PTR [rbp-14], ax
movsx dx, BYTE PTR [rbp-2]
movzx eax, WORD PTR [rbp-14]
imul eax, edx
mov edx, DWORD PTR [rbp-8]
add eax, edx
mov WORD PTR [rbp-16], ax
mov eax, 0
pop rbp
ret
__static_initialization_and_destruction_0(int, int):
push rbp
mov rbp, rsp
sub rsp, 16
mov DWORD PTR [rbp-4], edi
mov DWORD PTR [rbp-8], esi
cmp DWORD PTR [rbp-4], 1
jne .L5
cmp DWORD PTR [rbp-8], 65535
jne .L5
mov edi, OFFSET FLAT:std::__ioinit
call std::ios_base::Init::Init()
mov edx, OFFSET FLAT:__dso_handle
mov esi, OFFSET FLAT:std::__ioinit
mov edi, OFFSET FLAT:std::ios_base::Init::~Init()
call __cxa_atexit
.L5:
nop
leave
ret
push rbp
mov rbp, rsp
mov esi, 65535
mov edi, 1
call __static_initialization_and_destruction_0(int, int)
pop rbp
ret

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