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Length: 22869 (0x5955) Types: TextFile Names: »B«
└─⟦149519bd4⟧ Bits:30000546 8mm tape, Rational 1000, !projects 93-07-13 └─ ⟦124ff5788⟧ »DATA« └─⟦this⟧ └─⟦a7d1ea751⟧ Bits:30000550 8mm tape, Rational 1000, !users!projects 94_04_11 └─ ⟦129cab021⟧ »DATA« └─⟦this⟧ └─⟦f64eaa120⟧ Bits:30000752 8mm tape, Rational 1000, !projects 93 02 16 └─ ⟦6f12a12be⟧ »DATA« └─⟦this⟧ └─⟦2f6cfab89⟧ Bits:30000547 8mm tape, Rational 1000, !projects 94-01-04 └─ ⟦d65440be7⟧ »DATA« └─⟦this⟧
with Erreur; with Octet; with Z80_Defs; use Z80_Defs; package body Desassembleur is -- TYPES ---------------------------------------------------------------- type Code_Instruction is record Mnemo : Mnemonic; Op_Gauche : Operande; Op_Droit : Operande; end record; -- CONSTANTES ----------------------------------------------------------- Table_Primaire : constant array (0 .. 255) of Code_Instruction := (16#00# => (Nop, Aucun, Aucun), 16#01# => (Ld, Bc, Nn), 16#02# => (Ld, Bc_Indirect, A), 16#03# => (Inc, Bc, Aucun), 16#04# => (Inc, B, Aucun), 16#05# => (Dec, B, Aucun), 16#06# => (Ld, B, N), 16#07# => (Rlca, A, Aucun), 16#08# => (Ex, Af, Af_Prime), 16#09# => (Add, Hl, Bc), 16#0A# => (Ld, A, Bc_Indirect), 16#0B# => (Dec, Bc, Aucun), 16#0C# => (Inc, C, Aucun), 16#0D# => (Dec, C, Aucun), 16#0E# => (Ld, C, N), 16#0F# => (Rrca, A, Aucun), 16#10# => (Djnz, Offset_E, Aucun), 16#11# => (Ld, De, Nn), 16#12# => (Ld, De_Indirect, A), 16#13# => (Inc, De, Aucun), 16#14# => (Inc, D, Aucun), 16#15# => (Dec, D, Aucun), 16#16# => (Ld, D, N), 16#17# => (Rla, A, Aucun), 16#18# => (Jr, Offset_E, Aucun), 16#19# => (Add, Hl, De), 16#1A# => (Ld, A, De_Indirect), 16#1B# => (Dec, De, Aucun), 16#1C# => (Inc, E, Aucun), 16#1D# => (Dec, E, Aucun), 16#1E# => (Ld, E, N), 16#1F# => (Rra, A, Aucun), 16#20# => (Jr, Nz, Offset_E), 16#21# => (Ld, Hl, Nn), 16#22# => (Ld, Nn_Indirect, Hl), 16#23# => (Inc, Hl, Aucun), 16#24# => (Inc, H, Aucun), 16#25# => (Dec, H, Aucun), 16#26# => (Ld, H, N), 16#27# => (Daa, Aucun, Aucun), 16#28# => (Jr, Z, Offset_E), 16#29# => (Add, Hl, Hl), 16#2A# => (Ld, Hl, Nn_Indirect), 16#2B# => (Dec, Hl, Aucun), 16#2C# => (Inc, L, Aucun), 16#2D# => (Dec, L, Aucun), 16#2E# => (Ld, L, N), 16#2F# => (Cpl, Aucun, Aucun), 16#30# => (Jr, Nc, Offset_E), 16#31# => (Ld, Sp, Nn), 16#32# => (Ld, Nn_Indirect, A), 16#33# => (Inc, Sp, Aucun), 16#34# => (Inc, Hl_Indirect, Aucun), 16#35# => (Dec, Hl_Indirect, Aucun), 16#36# => (Ld, Hl_Indirect, N), 16#37# => (Scf, Aucun, Aucun), 16#38# => (Jr, Cy, Offset_E), 16#39# => (Add, Hl, Sp), 16#3A# => (Ld, A, Nn_Indirect), 16#3B# => (Dec, Sp, Aucun), 16#3C# => (Inc, A, Aucun), 16#3D# => (Dec, A, Aucun), 16#3E# => (Ld, A, N), 16#3F# => (Ccf, Aucun, Aucun), 16#40# => (Ld, B, B), 16#41# => (Ld, B, C), 16#42# => (Ld, B, D), 16#43# => (Ld, B, E), 16#44# => (Ld, B, H), 16#45# => (Ld, B, L), 16#46# => (Ld, B, Hl_Indirect), 16#47# => (Ld, B, A), 16#48# => (Ld, C, B), 16#49# => (Ld, C, C), 16#4A# => (Ld, C, D), 16#4B# => (Ld, C, E), 16#4C# => (Ld, C, H), 16#4D# => (Ld, C, L), 16#4E# => (Ld, C, Hl_Indirect), 16#4F# => (Ld, C, A), 16#50# => (Ld, D, B), 16#51# => (Ld, D, C), 16#52# => (Ld, D, D), 16#53# => (Ld, D, E), 16#54# => (Ld, D, H), 16#55# => (Ld, D, L), 16#56# => (Ld, D, Hl_Indirect), 16#57# => (Ld, D, A), 16#58# => (Ld, E, B), 16#59# => (Ld, E, C), 16#5A# => (Ld, E, D), 16#5B# => (Ld, E, E), 16#5C# => (Ld, E, H), 16#5D# => (Ld, E, L), 16#5E# => (Ld, E, Hl_Indirect), 16#5F# => (Ld, E, A), 16#60# => (Ld, H, B), 16#61# => (Ld, H, C), 16#62# => (Ld, H, D), 16#63# => (Ld, H, E), 16#64# => (Ld, H, H), 16#65# => (Ld, H, L), 16#66# => (Ld, H, Hl_Indirect), 16#67# => (Ld, H, A), 16#68# => (Ld, L, B), 16#69# => (Ld, L, C), 16#6A# => (Ld, L, D), 16#6B# => (Ld, L, E), 16#6C# => (Ld, L, H), 16#6D# => (Ld, L, L), 16#6E# => (Ld, L, Hl_Indirect), 16#6F# => (Ld, L, A), 16#70# => (Ld, Hl_Indirect, B), 16#71# => (Ld, Hl_Indirect, C), 16#72# => (Ld, Hl_Indirect, D), 16#73# => (Ld, Hl_Indirect, E), 16#74# => (Ld, Hl_Indirect, H), 16#75# => (Ld, Hl_Indirect, L), 16#76# => (Halt, Aucun, Aucun), 16#77# => (Ld, Hl_Indirect, A), 16#78# => (Ld, A, B), 16#79# => (Ld, A, C), 16#7A# => (Ld, A, D), 16#7B# => (Ld, A, E), 16#7C# => (Ld, A, H), 16#7D# => (Ld, A, L), 16#7E# => (Ld, A, Hl_Indirect), 16#7F# => (Ld, A, A), 16#80# => (Add, A, B), 16#81# => (Add, A, C), 16#82# => (Add, A, D), 16#83# => (Add, A, E), 16#84# => (Add, A, H), 16#85# => (Add, A, L), 16#86# => (Add, A, Hl_Indirect), 16#87# => (Add, A, A), 16#88# => (Adc, A, B), 16#89# => (Adc, A, C), 16#8A# => (Adc, A, D), 16#8B# => (Adc, A, E), 16#8C# => (Adc, A, H), 16#8D# => (Adc, A, L), 16#8E# => (Adc, A, Hl_Indirect), 16#8F# => (Adc, A, A), 16#90# => (Sub, B, Aucun), 16#91# => (Sub, C, Aucun), 16#92# => (Sub, D, Aucun), 16#93# => (Sub, E, Aucun), 16#94# => (Sub, H, Aucun), 16#95# => (Sub, L, Aucun), 16#96# => (Sub, Hl_Indirect, Aucun), 16#97# => (Sub, A, Aucun), 16#98# => (Sbc, A, B), 16#99# => (Sbc, A, C), 16#9A# => (Sbc, A, D), 16#9B# => (Sbc, A, E), 16#9C# => (Sbc, A, H), 16#9D# => (Sbc, A, L), 16#9E# => (Sbc, A, Hl_Indirect), 16#9F# => (Sbc, A, A), 16#A0# => (Z80_And, B, Aucun), 16#A1# => (Z80_And, C, Aucun), 16#A2# => (Z80_And, D, Aucun), 16#A3# => (Z80_And, E, Aucun), 16#A4# => (Z80_And, H, Aucun), 16#A5# => (Z80_And, L, Aucun), 16#A6# => (Z80_And, Hl_Indirect, Aucun), 16#A7# => (Z80_And, A, Aucun), 16#A8# => (Z80_Xor, B, Aucun), 16#A9# => (Z80_Xor, C, Aucun), 16#AA# => (Z80_Xor, D, Aucun), 16#AB# => (Z80_Xor, E, Aucun), 16#AC# => (Z80_Xor, H, Aucun), 16#AD# => (Z80_Xor, L, Aucun), 16#AE# => (Z80_Xor, Hl_Indirect, Aucun), 16#AF# => (Z80_Xor, A, Aucun), 16#B0# => (Z80_Or, B, Aucun), 16#B1# => (Z80_Or, C, Aucun), 16#B2# => (Z80_Or, D, Aucun), 16#B3# => (Z80_Or, E, Aucun), 16#B4# => (Z80_Or, H, Aucun), 16#B5# => (Z80_Or, L, Aucun), 16#B6# => (Z80_Or, Hl_Indirect, Aucun), 16#B7# => (Z80_Or, A, Aucun), 16#B8# => (Cp, B, Aucun), 16#B9# => (Cp, C, Aucun), 16#BA# => (Cp, D, Aucun), 16#BB# => (Cp, E, Aucun), 16#BC# => (Cp, H, Aucun), 16#BD# => (Cp, L, Aucun), 16#BE# => (Cp, Hl_Indirect, Aucun), 16#BF# => (Cp, A, Aucun), 16#C0# => (Ret, Nz, Aucun), 16#C1# => (Pop, Bc, Aucun), 16#C2# => (Jp, Nz, Nn), 16#C3# => (Jp, Nn, Aucun), 16#C4# => (Call, Nz, Nn), 16#C5# => (Push, Bc, Aucun), 16#C6# => (Add, A, N), 16#C7# => (Rst, Z80_00h, Aucun), 16#C8# => (Ret, Z, Aucun), 16#C9# => (Ret, Aucun, Aucun), 16#CA# => (Jp, Z, Nn), 16#CB# => (Inconnu, Aucun, Aucun), -- 16#cb# 16#CC# => (Call, Z, Nn), 16#CD# => (Call, Nn, Aucun), 16#CE# => (Adc, A, N), 16#CF# => (Rst, Z80_08h, Aucun), 16#D0# => (Ret, Nc, Aucun), 16#D1# => (Pop, De, Aucun), 16#D2# => (Jp, Nc, Nn), 16#D3# => (Z80_Out, N_Indirect, A), 16#D4# => (Call, Nc, Nn), 16#D5# => (Push, De, Aucun), 16#D6# => (Sub, N, Aucun), 16#D7# => (Rst, Z80_10h, Aucun), 16#D8# => (Ret, Cy, Aucun), 16#D9# => (Exx, Aucun, Aucun), 16#DA# => (Jp, Cy, Nn), 16#DB# => (Z80_In, A, N_Indirect), 16#DC# => (Call, Cy, Nn), 16#DD# => (Inconnu, Aucun, Aucun), --16#dd# 16#DE# => (Sbc, A, N), 16#DF# => (Rst, Z80_18h, Aucun), 16#E0# => (Ret, Po, Aucun), 16#E1# => (Pop, Hl, Aucun), 16#E2# => (Jp, Po, Nn), 16#E3# => (Ex, Sp_Indirect, Hl), 16#E4# => (Call, Po, Nn), 16#E5# => (Push, Hl, Aucun), 16#E6# => (Z80_And, N, Aucun), 16#E7# => (Rst, Z80_20h, Aucun), 16#E8# => (Ret, Pe, Aucun), 16#E9# => (Jp, Hl, Aucun), 16#EA# => (Jp, Pe, Nn), 16#EB# => (Ex, De, Hl), 16#EC# => (Call, Pe, Nn), 16#ED# => (Inconnu, Aucun, Aucun), --16#ed# 16#EE# => (Z80_Xor, N, Aucun), 16#EF# => (Rst, Z80_28h, Aucun), 16#F0# => (Ret, P, Aucun), 16#F1# => (Pop, Af, Aucun), 16#F2# => (Jp, P, Nn), 16#F3# => (Di, Aucun, Aucun), 16#F4# => (Call, P, Nn), 16#F5# => (Push, Af, Aucun), 16#F6# => (Z80_Or, N, Aucun), 16#F7# => (Rst, Z80_30h, Aucun), 16#F8# => (Ret, M, Aucun), 16#F9# => (Ld, Sp, Hl), 16#FA# => (Jp, M, Nn), 16#FB# => (Ei, Aucun, Aucun), 16#FC# => (Call, M, Nn), 16#FD# => (Inconnu, Aucun, Aucun), --16#fd# 16#FE# => (Cp, N, Aucun), 16#FF# => (Rst, Z80_38h, Aucun)); Table_Ed : constant array (0 .. 255) of Code_Instruction := (16#00# .. 16#3F# => (Inconnu, Aucun, Aucun), 16#40# => (Z80_In, B, C_Indirect), 16#41# => (Z80_Out, C_Indirect, B), 16#42# => (Sbc, Hl, Bc), 16#43# => (Ld, Nn_Indirect, Bc), 16#44# => (Neg, Aucun, Aucun), 16#45# => (Retn, Aucun, Aucun), 16#46# => (Im, Z80_0, Aucun), 16#47# => (Ld, I, A), 16#48# => (Z80_In, C, C_Indirect), 16#49# => (Z80_Out, C_Indirect, C), 16#4A# => (Adc, Hl, Bc), 16#4B# => (Ld, Bc, Nn_Indirect), 16#4C# => (Inconnu, Aucun, Aucun), 16#4D# => (Reti, Aucun, Aucun), 16#4E# => (Inconnu, Aucun, Aucun), 16#4F# => (Ld, R, A), 16#50# => (Z80_In, D, C_Indirect), 16#51# => (Z80_Out, C_Indirect, D), 16#52# => (Sbc, Hl, De), 16#53# => (Ld, Nn_Indirect, De), 16#54# => (Inconnu, Aucun, Aucun), 16#55# => (Inconnu, Aucun, Aucun), 16#56# => (Im, Z80_1, Aucun), 16#57# => (Ld, A, I), 16#58# => (Z80_In, E, C_Indirect), 16#59# => (Z80_Out, C_Indirect, E), 16#5A# => (Adc, Hl, De), 16#5B# => (Ld, De, Nn_Indirect), 16#5C# => (Inconnu, Aucun, Aucun), 16#5D# => (Inconnu, Aucun, Aucun), 16#5E# => (Im, Z80_2, Aucun), 16#5F# => (Ld, A, R), 16#60# => (Z80_In, H, C_Indirect), 16#61# => (Z80_Out, C_Indirect, H), 16#62# => (Sbc, Hl, Hl), 16#63# => (Inconnu, Aucun, Aucun), 16#64# => (Inconnu, Aucun, Aucun), 16#65# => (Inconnu, Aucun, Aucun), 16#66# => (Inconnu, Aucun, Aucun), 16#67# => (Rrd, A, Hl_Indirect), 16#68# => (Z80_In, L, C_Indirect), 16#69# => (Z80_Out, C_Indirect, L), 16#6A# => (Adc, Hl, Hl), 16#6B# => (Inconnu, Aucun, Aucun), 16#6C# => (Inconnu, Aucun, Aucun), 16#6D# => (Inconnu, Aucun, Aucun), 16#6E# => (Inconnu, Aucun, Aucun), 16#6F# => (Rld, A, Hl_Indirect), 16#70# => (Inconnu, Aucun, Aucun), 16#71# => (Inconnu, Aucun, Aucun), 16#72# => (Sbc, Hl, Sp), 16#73# => (Ld, Nn_Indirect, Sp), 16#74# => (Inconnu, Aucun, Aucun), 16#75# => (Inconnu, Aucun, Aucun), 16#76# => (Inconnu, Aucun, Aucun), 16#77# => (Inconnu, Aucun, Aucun), 16#78# => (Z80_In, A, C_Indirect), 16#79# => (Z80_Out, C_Indirect, A), 16#7A# => (Adc, Hl, Sp), 16#7B# => (Ld, Sp, Nn_Indirect), 16#7C# => (Inconnu, Aucun, Aucun), 16#7D# => (Inconnu, Aucun, Aucun), 16#7E# => (Inconnu, Aucun, Aucun), 16#7F# => (Inconnu, Aucun, Aucun), 16#80# .. 16#9F# => (Inconnu, Aucun, Aucun), 16#A0# => (Ldi, De_Indirect, Hl_Indirect), 16#A1# => (Cpi, Hl_Indirect, Aucun), 16#A2# => (Ini, Hl_Indirect, C_Indirect), 16#A3# => (Outi, C_Indirect, Hl_Indirect), 16#A4# => (Inconnu, Aucun, Aucun), 16#A5# => (Inconnu, Aucun, Aucun), 16#A6# => (Inconnu, Aucun, Aucun), 16#A7# => (Inconnu, Aucun, Aucun), 16#A8# => (Ldd, De_Indirect, Hl_Indirect), 16#A9# => (Cpd, Hl_Indirect, Aucun), 16#AA# => (Ind, Hl_Indirect, C_Indirect), 16#AB# => (Outd, C_Indirect, Hl_Indirect), 16#AC# => (Inconnu, Aucun, Aucun), 16#AD# => (Inconnu, Aucun, Aucun), 16#AE# => (Inconnu, Aucun, Aucun), 16#AF# => (Inconnu, Aucun, Aucun), 16#B0# => (Ldir, De_Indirect, Hl_Indirect), 16#B1# => (Cpir, Hl_Indirect, Aucun), 16#B2# => (Inir, Hl_Indirect, C_Indirect), 16#B3# => (Otir, C_Indirect, Hl_Indirect), 16#B4# => (Inconnu, Aucun, Aucun), 16#B5# => (Inconnu, Aucun, Aucun), 16#B6# => (Inconnu, Aucun, Aucun), 16#B7# => (Inconnu, Aucun, Aucun), 16#B8# => (Lddr, De_Indirect, Hl_Indirect), 16#B9# => (Cpdr, Hl_Indirect, Aucun), 16#BA# => (Indr, Hl_Indirect, C_Indirect), 16#BB# => (Otdr, C_Indirect, Hl_Indirect), 16#BC# => (Inconnu, Aucun, Aucun), 16#BD# => (Inconnu, Aucun, Aucun), 16#BE# => (Inconnu, Aucun, Aucun), 16#BF# => (Inconnu, Aucun, Aucun), 16#C0# .. 16#FF# => (Inconnu, Aucun, Aucun) ); -- VARIABLES ------------------------------------------------------------ Ed : Boolean := False; Cb : Boolean := False; Dd : Boolean := False; Fd : Boolean := False; Decodage_Complet : Boolean := False; Donnee_Lue : Boolean := False; Nb_Octet_Donnee : Natural range 0 .. 2 := 0; Instruction_Decodee : Instruction := (Inconnu, Aucun, Aucun, 0); -- PROCEDURES ----------------------------------------------------------- function Decode_Avec_Table_Ed (Code : Octet.T_Octet) return Boolean; function Decode_Cb (Code : Octet.T_Octet) return Boolean; function Decode_Avec_Table_Primaire (Code : Octet.T_Octet) return Boolean; function Test_Operande (Op_Gauche_Ou_Droit : Operande) return Operande; function Test_Operande_Cb (Op_Entree : Operande) return Operande; --------------------------------------- function Instruction_Trouvee return Instruction is begin if Decodage_Complet then return Instruction_Decodee; else Erreur.Detectee (1); end if; end Instruction_Trouvee; --------------------------------------- function Traiter_Code (Code : Octet.T_Octet) return Boolean is begin if Decodage_Complet then Decodage_Complet := False; Ed := False; Cb := False; Dd := False; Fd := False; Nb_Octet_Donnee := 0; Donnee_Lue := False; Instruction_Decodee := (Inconnu, Aucun, Aucun, 0); end if; case Nb_Octet_Donnee is when 0 => case Code is when 16#ED# => if Cb then Decodage_Complet := Decode_Cb (Code); else Ed := True; end if; when 16#CB# => if Cb then Decodage_Complet := Decode_Cb (Code); end if; Cb := True; when 16#DD# => if Cb then Decodage_Complet := Decode_Cb (Code); else Dd := True; end if; when 16#FD# => if Cb then Decodage_Complet := Decode_Cb (Code); else Fd := True; end if; when others => if Ed then Decodage_Complet := Decode_Avec_Table_Ed (Code); elsif Cb then Decodage_Complet := Decode_Cb (Code); else Decodage_Complet := Decode_Avec_Table_Primaire (Code); end if; end case; when 1 => Instruction_Decodee.Donnee := Instruction_Decodee.Donnee + Mot.T_Mot (Code); Nb_Octet_Donnee := 0; Decodage_Complet := True; when 2 => Instruction_Decodee.Donnee := Mot.T_Mot (Code) * 256; Nb_Octet_Donnee := 1; end case; return Decodage_Complet; end Traiter_Code; --------------------------------- function Decode_Avec_Table_Ed (Code : Octet.T_Octet) return Boolean is begin Instruction_Decodee.Mnemo := Table_Ed (Code).Mnemo; Instruction_Decodee.Op_Gauche := Test_Operande (Table_Ed (Code).Op_Gauche); Instruction_Decodee.Op_Droit := Test_Operande (Table_Ed (Code).Op_Droit); return (Nb_Octet_Donnee = 0); end Decode_Avec_Table_Ed; --------------------------------- function Decode_Cb (Code : Octet.T_Octet) return Boolean is -- constantes ------------------------- Tab_Registre : constant array (0 .. 7) of Operande := (B, C, D, E, H, L, Hl_Indirect, A); Tab_Decalage : constant array (0 .. 7) of Mnemonic := (Rlc, Rrc, Rl, Rr, Sla, Sra, Inconnu, Srl); Tab_Bit : constant array (0 .. 7) of Operande := (Bit_0, Bit_1, Bit_2, Bit_3, Bit_4, Bit_5, Bit_6, Bit_7); Tab_Mnemo : constant array (0 .. 3) of Mnemonic := (Inconnu, Bit, Res, Set); begin if ((Dd or Fd) and (not Donnee_Lue)) then -- reste donnee + code a lire Instruction_Decodee.Donnee := Mot.T_Mot (Code); Donnee_Lue := True; else if (Code <= 16#3F#) then Instruction_Decodee.Mnemo := Tab_Decalage (Code / 8); Instruction_Decodee.Op_Gauche := Test_Operande_Cb (Tab_Registre (Code mod 8)); else Instruction_Decodee.Mnemo := Tab_Mnemo (Code / 64); Instruction_Decodee.Op_Gauche := Tab_Bit ((Code mod 64) / 8); Instruction_Decodee.Op_Droit := Test_Operande_Cb (Tab_Registre (Code mod 8)); end if; Decodage_Complet := True; end if; return Decodage_Complet; end Decode_Cb; --------------------------------- function Decode_Avec_Table_Primaire (Code : Octet.T_Octet) return Boolean is begin Instruction_Decodee.Mnemo := Table_Primaire (Code).Mnemo; Instruction_Decodee.Op_Gauche := Test_Operande (Table_Primaire (Code).Op_Gauche); Instruction_Decodee.Op_Droit := Test_Operande (Table_Primaire (Code).Op_Droit); return (Nb_Octet_Donnee = 0); end Decode_Avec_Table_Primaire; --------------------------------- function Test_Operande (Op_Gauche_Ou_Droit : Operande) return Operande is Op_Sortie : Operande := Op_Gauche_Ou_Droit; begin case Op_Gauche_Ou_Droit is when Nn | Nn_Indirect => Nb_Octet_Donnee := 2; when N | N_Indirect | Offset_E => Nb_Octet_Donnee := Nb_Octet_Donnee + 1; when Hl => if Dd then Op_Sortie := Ix; elsif Fd then Op_Sortie := Iy; end if; when Hl_Indirect => if Instruction_Decodee.Mnemo = Jp then if Dd then Op_Sortie := Ix_Indirect; elsif Fd then Op_Sortie := Iy_Indirect; end if; else if Dd then Op_Sortie := Ix_Plus_D_Indirect; Nb_Octet_Donnee := Nb_Octet_Donnee + 1; elsif Fd then Op_Sortie := Iy_Plus_D_Indirect; Nb_Octet_Donnee := Nb_Octet_Donnee + 1; end if; end if; when others => null; end case; return Op_Sortie; end Test_Operande; --------------------------------- function Test_Operande_Cb (Op_Entree : Operande) return Operande is Op_Sortie : Operande := Op_Entree; begin if Op_Entree = Hl_Indirect then if Dd then Op_Sortie := Ix_Plus_D_Indirect; elsif Fd then Op_Sortie := Iy_Plus_D_Indirect; end if; end if; return Op_Sortie; end Test_Operande_Cb; end Desassembleur;