00000000: 22 D7 48 41 54 20 49 53 20 54 48 45 20 4F 50 45 |".HAT IS THE OPE|
00000010: 52 41 54 49 4F 4E 20 20 4F 46 20 20 54 48 45 20 |RATION OF THE |
00000020: 20 CF 50 43 4F 44 45 0D 22 C2 D2 CB 3F 0D 22 31 | .PCODE."...?."1|
00000030: 29 20 20 C9 54 20 49 53 20 41 20 55 4E 46 4F 52 |) .T IS A UNFOR|
00000040: 43 45 44 20 20 49 4E 54 45 52 55 50 54 2C 20 20 |CED INTERUPT, |
00000050: 57 48 49 43 48 0D 22 53 41 56 45 53 20 49 54 53 |WHICH."SAVES ITS|
00000060: 20 43 55 52 52 45 4E 54 20 50 4F 53 49 54 49 4F | CURRENT POSITIO|
00000070: 4E 20 41 4E 44 20 20 53 54 41 54 55 53 0D 22 41 |N AND STATUS."A|
00000080: 4E 44 20 4A 55 4D 50 53 20 54 4F 20 41 20 53 54 |ND JUMPS TO A ST|
00000090: 41 4E 44 41 52 44 20 41 44 44 52 45 53 53 2E 0D |ANDARD ADDRESS..|
000000A0: 22 0D 22 32 29 20 20 C9 54 20 49 53 20 20 41 20 |"."2) .T IS A |
000000B0: 20 46 4F 52 43 45 44 20 20 49 4E 54 45 52 55 50 | FORCED INTERUP|
000000C0: 54 2C 20 20 57 48 49 43 48 0D 22 53 41 56 45 53 |T, WHICH."SAVES|
000000D0: 20 49 54 53 20 43 55 52 52 45 4E 54 20 50 4F 53 | ITS CURRENT POS|
000000E0: 49 54 49 4F 4E 20 41 4E 44 20 20 53 54 41 54 55 |ITION AND STATU|
000000F0: 53 0D 22 41 4E 44 20 4A 55 4D 50 53 20 54 4F 20 |S."AND JUMPS TO |
00000100: 41 20 4E 4F 4E 2D 53 54 41 4E 44 41 52 44 20 41 |A NON-STANDARD A|
00000110: 44 44 52 45 53 53 2E 0D 22 0D 22 33 29 20 20 C9 |DDRESS.."."3) .|
00000120: 54 20 49 53 20 20 41 20 20 46 4F 52 43 45 44 20 |T IS A FORCED |
00000130: 20 49 4E 54 45 52 55 50 54 2C 20 20 57 48 49 43 | INTERUPT, WHIC|
00000140: 48 0D 22 53 41 56 45 53 20 49 54 53 20 43 55 52 |H."SAVES ITS CUR|
00000150: 52 45 4E 54 20 50 4F 53 49 54 49 4F 4E 20 41 4E |RENT POSITION AN|
00000160: 44 20 20 53 54 41 54 55 53 0D 22 41 4E 44 20 4A |D STATUS."AND J|
00000170: 55 4D 50 53 20 54 4F 20 41 20 53 54 41 4E 44 41 |UMPS TO A STANDA|
00000180: 52 44 20 41 44 44 52 45 53 53 2E 0D 22 0D 22 34 |RD ADDRESS.."."4|
00000190: 29 20 20 C9 54 20 49 53 20 41 20 55 4E 46 4F 52 |) .T IS A UNFOR|
000001A0: 43 45 44 20 20 49 4E 54 45 52 55 50 54 2C 20 20 |CED INTERUPT, |
000001B0: 57 48 49 43 48 0D 22 53 41 56 45 53 20 49 54 53 |WHICH."SAVES ITS|
000001C0: 20 50 52 45 56 49 4F 55 53 20 50 4F 53 49 54 49 | PREVIOUS POSITI|
000001D0: 4F 4E 20 41 4E 44 20 53 54 41 54 55 53 0D 22 41 |ON AND STATUS."A|
000001E0: 4E 44 20 4A 55 4D 50 53 20 54 4F 20 41 20 52 41 |ND JUMPS TO A RA|
000001F0: 4E 44 4F 4D 20 41 44 44 52 45 53 53 2E 0D 22 0D |NDOM ADDRESS..".|
00000200: 22 35 29 20 20 CE 4F 4E 45 20 4F 46 20 54 48 45 |"5) .ONE OF THE|
00000210: 20 41 42 4F 56 45 2E 0D 22 0D 22 40 0D 22 33 0D | ABOVE.."."@."3.|
00000220: 22 5A 5A 5A 5A 5A 0D 0D 80 0D 0A |"ZZZZZ..... |
"WHAT IS THE OPERATION OF THE OPCODE.
"BRK?."1) IT IS A UNFORCED INTERUPT,
WHICH."SAVES ITS CURRENT POSITION AND S
TATUS."AND JUMPS TO A STANDARD ADDRESS..
"."2) IT IS A FORCED INTERUPT, WHIC
H."SAVES ITS CURRENT POSITION AND STATU
S."AND JUMPS TO A NON-STANDARD ADDRESS..
"."3) IT IS A FORCED INTERUPT, WHIC
H."SAVES ITS CURRENT POSITION AND STATU
S."AND JUMPS TO A STANDARD ADDRESS.."."4
) IT IS A UNFORCED INTERUPT, WHICH."S
AVES ITS PREVIOUS POSITION AND STATUS."A
ND JUMPS TO A RANDOM ADDRESS.."."5) NON
E OF THE ABOVE.."."@."3."ZZZZZ.....
×
C64 Image
> CLICK IMAGE PREVIEW FOR FULL MODAL