_  __   _  _         _ _     _      _           _           
  __| |/ /_ | || |     __| (_)___| | __ (_)_ __   __| | _____  __
 / _` | '_ \| || |_   / _` | / __| |/ / | | '_ \ / _` |/ _ \ \/ /
| (_| | (_) |__   _| | (_| | \__ \   <  | | | | | (_| |  __/>  < 
 \__,_|\___/   |_|    \__,_|_|___/_|\_\ |_|_| |_|\__,_|\___/_/\_\

CPX.D

FILE INFORMATION

FILENAME(S): CPX.D

FILE TYPE(S): SEQ

FILE SIZE: 407b

FIRST SEEN: 2025-11-02 16:39:56

APPEARS ON: 4 disk(s)

FILE HASH

55605ee2289ab4e5bb192d38cb9665ac0c1a3771029b00ff1857b85869054a62

FOUND ON DISKS (4 DISKS)

DISK TITLE FILENAME FILE TYPE COLLECTION TRACK SECTOR ACTIONS
1 CPX.D SEQ Treasure Chest - Plattfuss 14 16 DOWNLOAD FILE
U TILITES CPX.D SEQ Treasure Chest - Wolfgang Rauprich 22 8 DOWNLOAD FILE
FREEWARE DISK NR CPX.D SEQ Treasure Chest - Wolfgang Rauprich 22 8 DOWNLOAD FILE
OP CODE TUTOR CPX.D SEQ High Voltage Complete C64 Collection 14 12 DOWNLOAD FILE

FILE CONTENT & ANALYSIS

00000000: 22 20 20 20 20 20 20 20  20 20 20 20 20 20 20 CF  |"              .|
00000010: 50 43 4F 44 45 3A 20 C3  D0 D8 0D 22 20 20 20 20  |PCODE: ...."    |
00000020: 20 20 20 20 20 20 20 20  20 20 2D 2D 2D 2D 2D 2D  |          ------|
00000030: 2D 2D 2D 2D 2D 0D 22 0D  22 0D 22 CF 50 45 52 41  |-----.".".".PERA|
00000040: 54 49 4F 4E 3A 20 20 C3  D0 D8 20 20 41 46 46 45  |TION:  ...  AFFE|
00000050: 43 54 53 20 20 54 48 52  45 45 20 20 46 4C 41 47  |CTS  THREE  FLAG|
00000060: 53 0D 22 4F 4E 4C 59 2C  20 4C 45 41 56 49 4E 47  |S."ONLY, LEAVING|
00000070: 20 54 48 45 20 52 45 47  49 53 54 45 52 53 20 20  | THE REGISTERS  |
00000080: 41 4E 44 20 20 44 41 54  41 0D 22 49 4E 54 41 43  |AND  DATA."INTAC|
00000090: 54 2E 20 20 D4 48 45 20  42 59 54 45 20 20 52 45  |T.  .HE BYTE  RE|
000000A0: 46 45 52 45 4E 43 45 44  20 20 42 59 20 20 54 48  |FERENCED  BY  TH|
000000B0: 45 0D 22 4F 50 43 4F 44  45 20 49 53 20 53 55 42  |E."OPCODE IS SUB|
000000C0: 54 52 41 43 54 45 44 20  46 52 4F 4D 20 D8 2C 20  |TRACTED FROM ., |
000000D0: 20 41 4E 44 20 20 54 48  45 0D 22 46 4C 41 47 53  | AND  THE."FLAGS|
000000E0: 20 CE 2C 20 DA 2C 20 41  4E 44 20 C3 20 53 45 54  | ., ., AND . SET|
000000F0: 20 44 45 50 45 4E 44 49  4E 47 20 4F 4E 20 54 48  | DEPENDING ON TH|
00000100: 45 0D 22 52 45 53 55 4C  54 2E 20 20 D7 49 54 48  |E."RESULT.  .ITH|
00000110: 49 4E 20 54 48 45 20 43  48 49 50 2C 20 D8 20 20  |IN THE CHIP, .  |
00000120: 49 53 20 20 41 44 44 45  44 0D 22 54 4F 20 54 48  |IS  ADDED."TO TH|
00000130: 45 20 32 27 53 20 43 4F  4D 50 4C 45 4D 45 4E 54  |E 2'S COMPLEMENT|
00000140: 20 4F 46 20 54 48 45 20  44 41 54 41 2C 20 41 4E  | OF THE DATA, AN|
00000150: 44 0D 22 54 48 45 20 52  45 53 55 4C 54 20 4F 46  |D."THE RESULT OF|
00000160: 20 54 48 49 53 20 44 45  54 45 52 4D 49 4E 45 53  | THIS DETERMINES|
00000170: 20 48 4F 57 20 20 54 48  45 0D 22 46 4C 41 47 53  | HOW  THE."FLAGS|
00000180: 20 41 52 45 20 53 45 54  2E 0D 22 0D 22 5A 5A 5A  | ARE SET.."."ZZZ|
00000190: 5A 5A 0D 0D 80 0D 0A                              |ZZ.....         |

"              OPCODE: CPX."            
  -----------."."."OPERATION:  CPX  AFFE
CTS  THREE  FLAGS."ONLY, LEAVING THE REG
ISTERS  AND  DATA."INTACT.  THE BYTE  RE
FERENCED  BY  THE."OPCODE IS SUBTRACTED 
FROM X,  AND  THE."FLAGS N, Z, AND C SET
 DEPENDING ON THE."RESULT.  WITHIN THE C
HIP, X  IS  ADDED."TO THE 2'S COMPLEMENT
 OF THE DATA, AND."THE RESULT OF THIS DE
TERMINES HOW  THE."FLAGS ARE SET.."."ZZZ
ZZ.....
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