All op-codes filled out in assmebler.

src/MOS6502.js

               procFailed = StoreSingleOp(0xC8); break;
 // --- JMP
             case 'jmp':
+              if (tokens.length === 2){
+                if (tokens[1].startsWith("$") && tokens[1].length === 5){
+                  let v = parseInt(tokens[1].substr(1), 16);
+                  if (!isNaN(v)){
+                    op.push(0x4C);
+                    op.push(v & 0x000000FF);
+                    op.push((v & 0x0000FF00) >> 8);
+                    this.__PC += 3;
+                  } else {
+                    throw new Error("Malformed op-code or value on program address " + toHexString(this.__PC));
+                  }
+                } else if (tokens[1].startsWith("+$") && tokens[1].length === 6){
+                  let v = parseInt(tokens[1].substr(2), 16);
+                  if (!isNaN(v)){
+                    op.push(0x6C);
+                    op.push(v & 0x000000FF);
+                    op.push((v & 0x0000FF00) >> 8);
+                    this.__PC += 3;
+                  } else {
+                    throw new Error("Malformed op-code or value on program address " + toHexString(this.__PC));
+                  }
+                } else { procFailed = true; }
+              } else { procFailed = true; }
               break;
 // --- JSR
             case 'jsr':
+              if (tokens.length === 2){
+                if (tokens[1].startsWith("$") && tokens[1].length === 5){
+                  let v = parseInt(tokens[1].substr(1), 16);
+                  if (!isNaN(v)){
+                    op.push(0x20);
+                    op.push(v & 0x000000FF);
+                    op.push((v & 0x0000FF00) >> 8);
+                    this.__PC += 3;
+                  } else {
+                    throw new Error("Malformed op-code or value on program address " + toHexString(this.__PC));
+                  }
+                } else { procFailed = true; }
+              } else {
+                procFailed = true;
+              }
               break;
 // --- LDA
             case 'lda':
+              procFailed = StoreOp([0xA9, 0xA5, 0xB5, 0xAD, 0xBD, 0xB9, 0xA1, 0xB1], 2, 3); break; 
               break;
 // --- LDX
             case 'ldx':
+              procFailed = StoreOp([0xA2, 0xA6, 0xB6, 0xAE, 0xBE, null, null, null], 2, 3); break;
               break;
 // --- LDY
             case 'ldy':
+              procFailed = StoreOp([0xA0, 0xA4, 0xB4, 0xAC, 0xBC, null, null, null], 2, 3); break;
               break;
 // --- LSR
             case 'lsr':
-              break;
+              if (tokens.length === 2){
+                if (tokens[1].toUpperCase() === 'A'){
+                  op.push(0x4A);
+                  this.__PC += 1;
+                  break;
+                }
+              }
+              procFailed = StoreOp([null, 0x46, 0x56, 0x4E, 0x5E, null, null, null], 2, 3); break;
 // --- NOP
             case 'nop':
               procFailed = StoreSingleOp(0xEA); break;
 // --- ORA
             case 'ora':
-              break;
+              procFailed = StoreOp([0x09, 0x05, 0x15, 0x0D, 0x1D, 0x19, 0x01, 0x11], 2, 3); break;
 // --- PHA
             case 'pha':
-              break;
+              procFailed = StoreSingleOp(0x48); break;
 // --- PHP
             case 'php':
-              break;
+              procFailed = StoreSingleOp(0x08); break;
 // --- PLA
             case 'pla':
-              break;
+              procFailed = StoreSingleOp(0x68); break;
 // --- PLP
             case 'plp':
-              break;
+              procFailed = StoreSingleOp(0x28); break;
 // --- ROL
             case 'rol':
-              break;
+              if (tokens.length === 2){
+                if (tokens[1].toUpperCase() === 'A'){
+                  op.push(0x2A);
+                  this.__PC += 1;
+                  break;
+                }
+              }
+              procFailed = StoreOp([null, 0x26, 0x36, 0x2E, 0x3E, null, null, null], 2, 3); break;
 // --- ROR
             case 'ror':
-              break;
+              if (tokens.length === 2){
+                if (tokens[1].toUpperCase() === 'A'){
+                  op.push(0x6A);
+                  this.__PC += 1;
+                  break;
+                }
+              }
+              procFailed = StoreOp([null, 0x66, 0x76, 0x6E, 0x7E, null, null, null], 2, 3); break;
 // --- RTI
             case 'rti':
-              break;
+              procFailed = StoreSingleOp(0x40); break;
 // --- RTS
             case 'rts':
+              procFailed = StoreSingleOp(0x60); break;
               break;
 // --- SBC
             case 'sbc':
-              break;
+              procFailed = StoreOp([0xE9, 0xE5, 0xF5, 0xED, 0xFD, 0xF9, 0xE1, 0xF1], 2, 3); break;
 // --- SEC
             case 'sec':
               procFailed = StoreSingleOp(0x38); break;
               break;
 // --- STA
             case 'sta':
-              break;
+              procFailed = StoreOp([null, 0x85, 0x95, 0x8D, 0x9D, 0x99, 0x81, 0x91], 2, 3); break;
 // --- STX
             case 'stx':
-              break;
+              procFailed = StoreOp([null, 0x86, 0x96, 0x8E, null, null, null, null], 2, 3); break;
 // --- STY
             case 'sty':
-              break;
+              procFailed = StoreOp([null, 0x84, 0x94, 0x8C, null, null, null, null], 2, 3); break;
 // --- TAX
             case 'tax':
               procFailed = StoreSingleOp(0xAA); break;
               procFailed = StoreSingleOp(0xA8); break;
 // --- TSX
             case 'tsx':
-              break;
+              procFailed = StoreSingleOp(0xBA); break;
 // --- TXA
             case 'txa':
               procFailed = StoreSingleOp(0x8A); break;
 // --- TXS
             case 'txs':
-              break;
+              procFailed = StoreSingleOp(0x9A); break;
 // --- TYA
             case 'tya':
               procFailed = StoreSingleOp(0x98); break;