c++ - Pep/8 Assembly - Switch statement inside of loop -

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i trying convert following c++ code pep/8 assembly doesn't seem work, , not know whether it's because of addressing modes or if there's larger problem.

here example utilizes switch statement, not inside of loop - codepad link. believe having trouble making value in letter,s compared case value. book not touch on switches it's trial , error @ point.

c++

int main() {      char letter;     int counta = 0,     countb = 0,     countc = 0;      cin >> letter;      {         switch (letter) {             case 'a' : counta++; break;             case 'b' : countb++; break;             case 'c' : countc++; break;         }         cin >> letter;     } while (letter != 'x');      cout << "number of a's " << counta << endl     << "number of b's " << countb << endl     << "number of c's " << countc << endl;      return 0;  }

pep/8

       br main     main:   subsp 1,i             lda 0,i             sta counta,d             lda 0,i             sta countb,d             lda 0,i             sta countc,d             chari letter,s      ; cin >> letter             ldx letter,s             aslx             br     do:     br cases,x     cases:  .addrss casea             .addrss caseb             .addrss casec     casea:  lda counta,s        ; counta++             adda 1,i             sta counta,s             br endcase          ; break     caseb:  lda countb,s        ; countb++             adda 1,i             sta countb,s             br endcase          ;break     casec:  lda countc,s        ; countc++             adda 1,i             sta countc,s             br endcase          ; break     endcase: chari letter,s      ; } cin >> letter; } while...             addsp 1,i     while:  ldbytea letter,d    ; while (letter != 'x')             cpa 'x',d             brne     endloop: stro msga,d         ; cout << "number of a's: " << counta << endl             deco counta,s             charo '\n',i             stro msgb,d         ; cout << "number of b's: " << countb << endl             deco countb,s             charo '\n',i             stro msgc,d         ; cout << "number of c's: " << countc << endl             deco countc,s             charo '\n',i             stop     msga:   .ascii "number of a's: \x00"     msgb:   .ascii "number of b's: \x00"     msgc:   .ascii "number of c's: \x00"             .end


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