Mips assembly language
Generate the quadruples for the program code fragment and include details. Please see the attached photo below.
Solution
; roots.asm segment .text global _roots _roots: enter 0,0 xor EAX,EAX fld qword[EBP+8] ; a fadd ST0 ; 2a fld qword[EBP+8] ; a,2a fld qword[EBP+24] ; c,a,2a fmulp ST1 ; ac,2a fadd ST0 ; 2ac,2a fadd st0 ; 4ac,2a fchs ; -4ac,2a fld qword[EBP+16] ; b,-4ac,2a fld qword[EBP+16] ; b,b,-4ac,2a fmulp ST1 ; b*b,-4ac,2a faddp ST1 ; b*b-4ac,2a ftst ; cmp (b*b-4ac),0 fstsw AX ; result of test in AX sahf ; store AH in flag reg jb no_real_roots ; jb tests the carry flag fsqrt ; sqrt(b*b-4ac),2a fld qword[EBP+16] ; b,sqrt(b*b-4ac),2a fchs ; -b,sqrt(b*b-4ac),2a fadd ST1 ; -b+sqrt(b*b-4ac),sqrt(b*b-4ac),2a fdiv ST2 ; -b+sqrt(b*b-4ac)/2a,sqrt(b*b-4ac),2a mov EAX,dword[EBP+32] ; EAX = -b+sqrt(b*b-4ac)/2a fstp qword[EAX] ; Store and pop fld qword[EBP+16] ; b,sqrt(b*b-4ac),2a fchs ; -b,sqrt(b*b-4ac),2a fsubp ST1 ; -b-sqrt(b*b-4ac),2a fdivrp ST1 ; -b-sqrt(b*b-4ac)/2a mov EAX,dword[EBP+36] ; EAX = -b-sqrt(b*b-4ac)/2a fstp qword[EAX] ; Store and pop mov EAX,1 ; 1 means real roots jmp short done no_real_roots: sub EAX,EAX ; 0 means no real roots done: leave ret
.
![Mips assembly language
Generate the quadruples for the program code fragment and include details. Please see the
attached photo below.
Solution
; roots.asm segment .text global _roots _roots: enter 0,0 xor EAX,EAX fld qword[EBP+8] ; a
fadd ST0 ; 2a fld qword[EBP+8] ; a,2a fld qword[EBP+24] ; c,a,2a fmulp ST1 ; ac,2a fadd ST0 ;
2ac,2a fadd st0 ; 4ac,2a fchs ; -4ac,2a fld qword[EBP+16] ; b,-4ac,2a fld qword[EBP+16] ; b,b,-
4ac,2a fmulp ST1 ; b*b,-4ac,2a faddp ST1 ; b*b-4ac,2a ftst ; cmp (b*b-4ac),0 fstsw AX ; result
of test in AX sahf ; store AH in flag reg jb no_real_roots ; jb tests the carry flag fsqrt ; sqrt(b*b-
4ac),2a fld qword[EBP+16] ; b,sqrt(b*b-4ac),2a fchs ; -b,sqrt(b*b-4ac),2a fadd ST1 ; -
b+sqrt(b*b-4ac),sqrt(b*b-4ac),2a fdiv ST2 ; -b+sqrt(b*b-4ac)/2a,sqrt(b*b-4ac),2a mov
EAX,dword[EBP+32] ; EAX = -b+sqrt(b*b-4ac)/2a fstp qword[EAX] ; Store and pop fld
qword[EBP+16] ; b,sqrt(b*b-4ac),2a fchs ; -b,sqrt(b*b-4ac),2a fsubp ST1 ; -b-sqrt(b*b-4ac),2a
fdivrp ST1 ; -b-sqrt(b*b-4ac)/2a mov EAX,dword[EBP+36] ; EAX = -b-sqrt(b*b-4ac)/2a fstp
qword[EAX] ; Store and pop mov EAX,1 ; 1 means real roots jmp short done no_real_roots: sub
EAX,EAX ; 0 means no real roots done: leave ret](https://image.slidesharecdn.com/mipsassemblylanguagegeneratethequadruplesfortheprogramcodefr-230209185122-282d127e/85/Mips-assembly-language-Generate-the-quadruples-for-the-program-code-fr-docx-1-320.jpg)
