A CONVERSION TABLE FROM ASSUMBLY TO HEX
[Thunor: Key to symbols used:
- b - A bit e.g. 0 to 7.
- c - A condition e.g. Z, NZ, C, NC, P, M, PO, PE.
- d - A displacement e.g. 7B.
- e - A single byte e.g. F7.
- mn - A numerical constant e.g. 9E3D.
- n - A numerical constant e.g. 3D.
- pq - An absolute address e.g. 4C00.
- r - A single register, an address pointed to by (HL), (IX+d) or (IY+d), and in some cases a numerical constant.
- s - A register-pair e.g. BC, DE, HL, SP, IX, or IY.
Key end.]
The Effect of Each Instruction on the Flags
INSTRUCTIONS FLAGS INSTRUCTIONS FLAGS
Opcode Hexcode S Z - H - P N C Opcode Hexcode S Z - H - P N C
ADC A,r table 1 @ @ - @ - @ 0 @ LD r,r table 1 - - - - - - - -
ADC HL,s table 2 @ @ - @ - @ 0 @ LD s,mn table 2 - - - - - - - -
ADD A,r table 1 @ @ - @ - @ 0 @ LD A,(pq) 3Aqqpp - - - - - - - -
ADD HL,s table 2 - - - @ - - 0 @ LD s,(pq) table 2 - - - - - - - -
ADD IX,s table 2 - - - @ - - 0 @ LD (pq),A 32qqpp - - - - - - - -
ADD IY,s table 2 - - - @ - - 0 @ LD (pq),s table 2 - - - - - - - -
AND r table 1 @ @ - 1 - @ 0 0
LDI EDA0 - - - 0 - x 0 -
BIT b,r table 1 ? @ - 1 - @ 0 0 LDD EDA8 - - - 0 - x 0 -
(P/V becomes 0 if BC becomes 0)
CALL pq CDqqpp - - - - - - - - LDIR EDB0 - - - 0 - 0 0 -
CALL c,pq table 3 - - - - - - - - LDDR EDB8 - - - 0 - 0 0 -
CCF 3F - - - x - - 0 @
(the H flag becomes the previous NEG ED44 @ @ - @ - @ 1 @
value of the C flag) NOP 00 - - - - - - - -
CP r table 1 @ @ - @ - @ 1 @
CPI EDA1 @ x - @ - x 1 - OR r table 1 @ @ - 0 - @ 0 0
CPD EDA9 @ x - @ - x 1 - OUT (n),A D3nn - - - - - - - -
CPIR EDB1 @ x - @ - x 1 - OUT (C),r table 1 - - - - - - - -
CPDR EDB9 @ x - @ - x 1 - OUTI EDA3 ? x - ? - ? 1 -
(Z becomes 1 if BC becomes zero, OUTD EDAB ? x - ? - ? 1 -
P/V becomes 1 if A = (HL-1)) (Z becomes 1 if BC becomes zero)
CPL 2F - - - 1 - - 1 - OTIR EDB3 ? 1 - ? - ? 1 -
OTDR EDBB ? 1 - ? - ? 1 -
DAA 27 @ @ - @ - @ - @
DEC r table 1 @ @ - @ - @ 1 - POP AF F1 x x x x x x x x
DEC s table 2 - - - - - - - - (Flags are determined by the
DI F3 - - - - - - - - byte at the top of the stack)
DJNZ e 10ee - - - - - - - - POP s table 2 - - - - - - - -
PUSH AF F5 - - - - - - - -
EI FB - - - - - - - - PUSH s table 2 - - - - - - - -
EX AF,AF' 08 - - - - - - - -
EX DE,HL EB - - - - - - - - RES b,r table 1 - - - - - - - -
EX (SP),HL E3 - - - - - - - - RET C9 - - - - - - - -
EX (SP),IX DDE3 - - - - - - - - RET c table 3 - - - - - - - -
EX (SP),IY FDE3 - - - - - - - - RETN ED45 - - - - - - - -
EXX D9 - - - - - - - - RETI ED4D - - - - - - - -
HALT 76 - - - - - - - - RLCA 07 - - - 0 - - 0 @
RRCA 0F - - - 0 - - 0 @
IM 0 ED46 - - - - - - - - RLA 17 - - - 0 - - 0 @
IM 1 ED56 - - - - - - - - RRA 1F - - - 0 - - 0 @
IM 2 ED5E - - - - - - - -
INC r table 1 @ @ - @ - @ 0 - RLC r table 1 @ @ - 0 - @ 0 @
INC s table 2 - - - - - - - - RRC r table 1 @ @ - 0 - @ 0 @
IN A,(n) DBnn - - - - - - - - RL r table 1 @ @ - 0 - @ 0 @
IN r,(C) table 1 @ @ - @ - @ 0 - RR r table 1 @ @ - 0 - @ 0 @
INI EDA2 ? x - ? - ? 1 -
IND EDAA ? x - ? - ? 1 - RRD ED67 @ @ - 0 - @ 0 -
(Z becomes 1 if B becomes zero) RLD ED6F @ @ - 0 - @ 0 -
INIR EDB2 ? 1 - ? - ? 1 -
INDR EDBA ? 1 - ? - ? 1 - RST 00 C7 - - - - - - - -
JP pq C3qqpp - - - - - - - - RST 08 CF - - - - - - - -
JP c,pq table 3 - - - - - - - - RST 10 D7 - - - - - - - -
JP (HL) E9 - - - - - - - - RST 18 DF - - - - - - - -
JP (IX) DDE9 - - - - - - - - RST 20 E7 - - - - - - - -
JP (IY) FDE9 - - - - - - - - RST 28 EF - - - - - - - -
JR e 18ee - - - - - - - - RST 30 F7 - - - - - - - -
JR c,e table 3 - - - - - - - - RST 38 FF - - - - - - - -
LD (BC),A 02 - - - - - - - - SBC A,r table 1 @ @ - @ - @ 1 @
LD A,(BC) 0A - - - - - - - - SBC HL,s table 2 @ @ - @ - @ 1 @
LD (DE),A 12 - - - - - - - - SCF 37 - - - 0 - - 0 1
LD A,(DE) 1A - - - - - - - - SET b,r table 1 - - - - - - - -
SLA r table 1 @ @ - 0 - @ 0 @
LD I,A ED47 - - - - - - - - SRA r table 1 @ @ - 0 - @ 0 @
LD R,A ED4F - - - - - - - - SRL r table 1 @ @ - 0 - @ 0 @
LD A,I ED57 @ @ - 0 - x 0 - SUB r table 1 @ @ - @ - @ 1 @
LD A,R ED5F @ @ - 0 - x 0 -
(P/V is set to interrupt storage XOR r table 1 @ @ - 0 - @ 0 0
flag)
LD SP,HL F9 - - - - - - - -
LD SP,IX DDF9 - - - - - - - -
LD SP,IY FDF9 - - - - - - - -
|
Conversion Table 1
+----------------------------------------------------------------------------+
| TABLE ONE |
+-----------+----------------------------------------------------------------+
| r | B C D E H L (HL) A (IX+d) (IY+d) n |
+-----------+----------------------------------------------------------------+
| ADD A,r | 80 81 82 83 84 85 86 87 DD86dd FD86dd C6nn |
| ADC A,r | 88 89 8A 8B 8C 8D 8E 8F DD8Fdd FD8Fdd CEnn |
| | |
| AND r | A0 A1 A2 A3 A4 A5 A6 A7 DDA6dd FDA6dd E6nn |
| | |
| BIT 0,r | CB40 CB41 CB42 CB43 CB44 CB45 CB46 CB47 DDCBdd46 FDCBdd46 - |
| BIT 1,r | CB48 CB49 CB4A CB4B CB4C CB4D CB4E CB4F DDCBdd4E FDCBdd4E - |
| BIT 2,r | CB50 CB51 CB52 CB53 CB54 CB55 CB56 CB57 DDCBdd56 FDCBdd56 - |
| BIT 3,r | CB58 CB59 CB5A CB5B CB5C CB5D CB5E CB5F DDCBdd5E FDCBdd5E - |
| BIT 4,r | CB60 CB61 CB62 CB63 CB64 CB65 CB66 CB67 DDCBdd66 FDCBdd66 - |
| BIT 5,r | CB68 CB69 CB6A CB6B CB6C CB6D CB6E CB6F DDCBdd6E FDCBdd6E - |
| BIT 6,r | CB70 CB71 CB72 CB73 CB74 CB75 CB76 CB77 DDCBdd76 FDCBdd76 - |
| BIT 7,r | CB78 CB79 CB7A CB7B CB7C CB7D CB7E CB7F DDCBdd7E FDCBdd7E - |
| | |
| CP r | B8 B9 BA BB BC BD BE BF DDBEdd FDBEdd FEnn |
| DEC r | 05 0D 15 1D 25 2D 35 3D DD35dd FD35dd - |
| | |
| IN r,(C) | ED40 ED48 ED50 ED58 ED60 ED68 - ED78 - - - |
| | |
| INC r | 04 0C 14 1C 24 2C 34 3C DD34dd FD34dd - |
| | |
| LD R,r | 40 41 42 43 44 45 46 47 DD46dd FD46dd 06nn |
| LD C,r | 48 49 4A 4B 4C 4D 4E 4F DD4Edd FD4Edd 0Enn |
| LD D,r | 50 51 52 53 54 55 56 57 DD56dd FD56dd 16nn |
| LD E,r | 58 59 5A 5B 5C 5D 5E 5F DD5Edd FD5Edd 1Enn |
| LD H,r | 60 61 62 63 64 65 66 67 DD66dd FD66dd 26nn |
| LD L,r | 68 69 6A 6B 6C 6D 6E 6F DD6Edd FD6Edd 2Enn |
| LD (HL),r | 70 71 72 73 74 75 - 77 - - 36nn |
| LD A,r | 78 79 7A 7B 7C 7D 7E 7F DD7Edd FD7Edd 3Enn |
| LD | DD70 DD71 DD72 DD73 DD74 DD75 - DD77 - - DD36 |
| (IX+d),r | dd dd dd dd dd dd dd ddnn |
| LD | FD70 FD71 FD72 FD73 FD74 FD75 - FD77 - - FD36 |
| (IY+d),r | dd dd dd dd dd dd dd ddnn |
| | |
| OR,r | B0 B1 B2 B3 B4 B5 B6 B7 DDB6dd FDB6dd F6nn |
| | |
| OUT (C),r | ED41 ED49 ED51 ED59 ED61 ED69 - ED79 - - - |
| | |
| RES 0,r | CB80 CB81 CB82 CB83 CB84 CB85 CB86 CB87 DDCBdd86 FDCBdd86 - |
| RES 1,r | CB88 CB89 CB8A CB8B CB8C CB8D CB8E CB8F DDCBdd8E FDCBdd8E - |
| RES 2,r | CB90 CB91 CB92 CB93 CB94 CB95 CB96 CB97 DDCBdd96 FDCBdd96 - |
| RES 3,r | CB98 CB99 CB9A CB9B CB9C CB9D CB9E CB9F DDCBdd9E FDCBdd9E - |
| RES 4,r | CBA0 CBA1 CBA2 CBA3 CBA4 CBA5 CBA6 CBA7 DDCBddA6 FDCBddA6 - |
| RES 5,r | CBA8 CBA9 CBAA CBAB CBAC CBAD CBAE CBAF DDCBddAE FDCBddAE - |
| RES 6,r | CBB0 CBB1 CBB2 CBB3 CBB4 CBB5 CBB6 CBB7 DDCBddB6 FDCBddB6 - |
| RES 7,r | CBB8 CBB9 CBBA CBBB CBBC CBBD CBBE CBBF DDCBddBE FDCBddBE - |
| | |
| RLC r | CB00 CB01 CB02 CB03 CB04 CB05 CB06 CB07 DDCBdd06 FDCBdd06 - |
| RRC r | CB08 CB09 CB0A CB0B CB0C CB0D CB0E CB0F DDCBdd0E FDCBdd0E - |
| RL r | CB10 CB11 CB12 CB13 CB14 CB15 CB16 CB17 DDCBdd16 FDCBdd16 - |
| RR r | CB18 CB19 CB1A CB1B CB1C CB1D CB1E CB1F DDCBdd1E FDCBdd1E - |
| | |
| SET 0,r | CBC0 CBC1 CBC2 CBC3 CBC4 CBC5 CBC6 CBC7 DDCBddC6 FDCBddC6 - |
| SET 1,r | CBC8 CBC9 CBCA CBCB CBCC CBCD CBCE CBCF DDCBddCE FDCBddCE - |
| SET 2,r | CBD0 CBD1 CBD2 CBD3 CBD4 CBD5 CBD6 CBD7 DDCBddD6 FDCBddD6 - |
| SET 3,r | CBD8 CBD9 CBDA CBDB CBDC CBDD CBDE CBDF DDCBddDE FDCBddDE - |
| SET 4,r | CBE0 CBE1 CBE2 CBE3 CBE4 CBE5 CBE6 CBE7 DDCBddE6 FDCBddE6 - |
| SET 5,r | CBE8 CBE9 CBEA CBEB CBEC CBED CBEE CBEF DDCBddEE FDCBddEE - |
| SET 6,r | CBF0 CBF1 CBF2 CBF3 CBF4 CBF5 CBF6 CBF7 DDCBddF6 FDCBddF6 - |
| SET 7,r | CBF8 CBF9 CBFA CBFB CBFC CBFD CBFE CBFF DDCBddFE FDCBddFE - |
| | |
| SUB A,r | 90 91 92 93 94 95 96 97 DD96dd FD96dd D6nn |
| SBC A,r | 98 99 9A 9B 9C 9D 9E 9F DD9Edd FD9Edd DEnn |
| | |
| SLA r | CB20 CB21 CB22 CB23 CB24 CB25 CB26 CB27 DDCBdd26 FDCBdd26 - |
| SRA r | CB28 CB29 CB2A CB2B CB2C CB2D CB2E CB2F DDCBdd2E FDCBdd2E - |
| SRL r | CB38 CB39 CB3A CB3B CB3C CB3D CB3E CB3F DDCBdd3E FDCBdd3E - |
| | |
| XOR r | A8 A9 AA AB AC AD AE AF DDAEdd FDAEdd EEnn |
+-----------+----------------------------------------------------------------+
|
Conversion Table 2
+------------------------------------------------------------------------+
| TABLE TWO |
+-----------+------------------------------------------------------------+
| s | BC DE HL SP IX IY |
+-----------+------------------------------------------------------------+
| ADC HL,s | ED4A ED5A ED6A ED7A - - |
| ADD HL,s | 09 19 29 39 - - |
| ADD IX,s | DD09 DD19 - DD39 DD29 - |
| ADD IY,s | FD09 FD19 - FD39 - FD29 |
| | |
| DEC s | 0B 1B 2B 3B DD2B FD2B |
| | |
| INC s | 03 13 23 33 DD23 FD23 |
| | |
| LD s,mn | 01nnmm 11nnmm 21nnmm 31nnmm DD21nnmm FD21nnmm |
| LD s,(pq) | ED4Bqqpp ED5Bqqpp 2Aqqpp ED7Bqqpp DD2Aqqpp FD2Aqqpp |
| LD (pq),s | ED43qqpp ED53qqpp 22qqpp ED73qqpp DD22qqpp FD22qqpp |
| | |
| POP s | C1 D1 E1 - DDE1 FDE1 |
| | |
| PUSH s | C5 D5 E5 - DDE5 FDE5 |
| | |
| SBC HL,s | ED42 ED52 ED62 ED72 - - |
+-----------+------------------------------------------------------------+
|
Conversion Table 3
+----------------------------------------------------------------------------+
| TABLE THREE |
+-----------+----------------------------------------------------------------+
| c | NZ Z NC C PO PE P M |
+-----------+----------------------------------------------------------------+
| CALL c,pq | C4qqpp CCqqpp D4qqpp DCqqpp E4qqpp ECqqpp F4qqpp FCqqpp |
| JP c,pq | C2qqpp CAqqpp D2qqpp DAqqpp E2qqpp EAqqpp F2qqpp FAqqpp |
| JR c,e | 20ee 28ee 30ee 38ee - - - - |
| RET c | C0 C8 D0 D8 E0 E8 F0 F8 |
+-----------+----------------------------------------------------------------+
|
|
