Braxx Bluff
version 1.1: Kentilla, Jasper
version 1.2: Jasper (PCG)
version 1.5: A Day in the Life
Micromega
Braxx Bluff
version 1.1: Kentilla, Jasper
version 1.2: Jasper (PCG)
version 1.5: A Day in the Life
Some of the values are only approximate.
The first two blocks (loader):
PILOT 8063x[P 1739] (header) or 3223x[P 1739] (data)
SYNC standard P 667, P 735
DATA standard
bit 0 = DP 855
bit 1 = DP 1710
FLAG BYTE #00 (header) or #ff (data)
PARITY BYTE present
version 1, 1.1, 1.2 subblocks:
PILOT 8063x[P 1739] (header) or 3223x[P 1739] (data)
SYNC standard P 667, P 735
DATA
subblock type 0
bit 0 = DP 647
bit 1 = DP 1294
subblock type 1
bit 0 = DP 855 (standard)
bit 1 = DP 1710 (standard)
subblock type 2
bit 0 = DP 673
bit 1 = DP 1346
FLAG BYTE #00 (header) or #ff (data)
PARITY BYTE present
Logical structure of the block:
header1 (subblock type 1) length 16
offset 00 type (#03) (unused)
offset 01 name
offset 0B total length of the data (unused)
offset 0D start of the first datablock
offset 0F number of datablocks N
data1 (subblock type 0) length 3510, the datablocks overlap (the actual lenght of the data is 3500)
data2 (subblock type 1) length 3510
data3 (subblock type 2) length 3510
data4 (subblock type 0) length 3510
...
dataN (subblock type (N-1) mod 3) length 3510
header2 (subblock type N mod 3) length 16
offset 00 type (#03) (unused)
offset 01 name
offset 0B length of the last datablock
offset 0D start of the first datablock (unused)
offset 0F number of datablocks N (unused)
data(N+1) (subblock type (N+1) mod 3)
version 1.1: using only types 1,2 (header1 - type 1, data1 - type 2 etc.)
version 1.2: using only type 2
version 1.5 subblocks:
PILOT 3223x[P 1739]
SYNC standard P 667, P 735
DATA
subblock type 0
bit 0 = DP 855 (standard)
bit 1 = DP 1710 (standard)
subblock type 1
bit 0 = DP 673
bit 1 = DP 1346
FLAG BYTE #ff
PARITY BYTE present
Logical structure of the version 1.5 block:
header1 (subblock type 1) length 19
offset 00 name
offset 0A #20 (unused)
offset 0B number of the subblocks
offset 0C subblock number
offset 0D length of the last subblock (unused)
offset 0F start of the first subblock
offset 11 start of the last subblock (unused)
data1 (subblock type 1) length 3510, the datablocks overlap (the actual lenght of the data is 3500)
header2 (subblock type 0) length 19
data2 (subblock type 0) length 3510
header3 (subblock type 1) length 19
data3 (subblock type 1) length 3510
...
headerN (subblock type N mod 2) length 19
dataN (subblock type N mod 2) length 3510
header(N+1) (subblock type (N+1) mod 2) length 19
offset 00 name
offset 0A #20 (unused)
offset 0B number of the subblocks
offset 0C subblock number
offset 0D length of the last subblock
offset 0F start of the first subblock (unused)
offset 11 start of the last subblock
data(N+1) (subblock type (N+1) mod 2)
F6E0 210000 LD HL,+0000 F6E3 220FF7 LD (F70F),HL F6E6 2113F7 LD HL,+F713 F6E9 220DF7 LD (F70D),HL F6EC 7E LD A,(HL) F6ED 5F LD E,A F6EE 1600 LD D,+00 F6F0 2A0FF7 LD HL,(F70F) F6F3 19 ADD HL,DE F6F4 220FF7 LD (F70F),HL F6F7 2A0DF7 LD HL,(F70D) F6FA 112AF9 LD DE,+F92A F6FD 37 SCF F6FE 3F CCF F6FF ED52 SBC HL,DE F701 CA70F7 JP Z,F770 F704 2A0DF7 LD HL,(F70D) F707 23 INC HL F708 220DF7 LD (F70D),HL F70B 18DF JR F6EC F70D 00 DW 0 F70F 00 DW 0 ;checksum f713..f92a F711 1C00 DW +1C ;expected checksum F713 00 DB 0 F714 15 DB +15,+C5,+C7,+DA,+C5 ;timing constants F719 16 DB +16,+B0,+B2,+CB,+B0 F71E 15 DB +15,+C2,+C4,+D8,+C2 F723 3A13F7 LD A,(F713) F726 FE00 CP +00 F728 CA3BF7 JP Z,F73B F72B FE01 CP +01 F72D CA49F7 JP Z,F749 F730 AF XOR A F731 3213F7 LD (F713),A F734 211EF7 LD HL,+F71E F737 CD57F7 CALL F757 F73A C9 RET F73B 2114F7 LD HL,+F714 F73E CD57F7 CALL F757 F741 3A13F7 LD A,(F713) F744 3C INC A F745 3213F7 LD (F713),A F748 C9 RET F749 2119F7 LD HL,+F719 F74C CD57F7 CALL F757 F74F 3A13F7 LD A,(F713) F752 3C INC A F753 3213F7 LD (F713),A F756 C9 RET F757 7E LD A,(HL) ;set timing constants F758 3295F8 LD (F895),A F75B 23 INC HL F75C 7E LD A,(HL) F75D 3253F8 LD (F853),A F760 23 INC HL F761 7E LD A,(HL) F762 3274F8 LD (F874),A F765 23 INC HL F766 7E LD A,(HL) F767 327CF8 LD (F87C),A F76A 23 INC HL F76B 7E LD A,(HL) F76C 3281F8 LD (F881),A F76F C9 RET F770 CD49F7 CALL F749 F773 DD21B4F8 LD IX,+F8B4 F777 111000 LD DE,+0010 F77A AF XOR A F77B 37 SCF F77C CDF1F7 CALL F7F1 F77F D20000 JP NC,0000,START F782 AF XOR A F783 3213F7 LD (F713),A F786 CD23F7 CALL F723 F789 DD2AC1F8 LD IX,(F8C1) F78D DD22C8F8 LD (F8C8),IX F791 AF XOR A F792 32CAF8 LD (F8CA),A F795 3AC3F8 LD A,(F8C3) F798 47 LD B,A F799 C5 PUSH BC F79A CDDAF8 CALL F8DA F79D 11B60D LD DE,+0DB6 F7A0 DD2AC8F8 LD IX,(F8C8) F7A4 3EFF LD A,+FF F7A6 37 SCF F7A7 CDF1F7 CALL F7F1 F7AA D20000 JP NC,0000,START F7AD CD23F7 CALL F723 F7B0 FB EI F7B1 2AC8F8 LD HL,(F8C8) F7B4 11AC0D LD DE,+0DAC F7B7 19 ADD HL,DE F7B8 22C8F8 LD (F8C8),HL F7BB C1 POP BC F7BC 10DB DJNZ F799 F7BE 3ACAF8 LD A,(F8CA) F7C1 3D DEC A F7C2 32CAF8 LD (F8CA),A F7C5 CDDAF8 CALL F8DA F7C8 DD21B4F8 LD IX,+F8B4 F7CC 111000 LD DE,+0010 F7CF AF XOR A F7D0 37 SCF F7D1 CDF1F7 CALL F7F1 F7D4 D20000 JP NC,0000,START F7D7 CD23F7 CALL F723 F7DA CDDAF8 CALL F8DA F7DD DD2AC8F8 LD IX,(F8C8) F7E1 ED5BBFF8 LD DE,(F8BF) F7E5 3EFF LD A,+FF F7E7 37 SCF F7E8 CDF1F7 CALL F7F1 F7EB D20000 JP NC,0000,START F7EE C3B671 JP 71B6 F7F1 D5 PUSH DE ;LD-BYTES F7F2 F5 PUSH AF F7F3 2A11F7 LD HL,(F711) F7F6 ED5B0FF7 LD DE,(F70F) F7FA 37 SCF F7FB 3F CCF F7FC ED52 SBC HL,DE F7FE C20000 JP NZ,0000,START F801 F1 POP AF F802 D1 POP DE F803 14 INC D F804 08 EX AF,AF' F805 15 DEC D F806 F3 DI F807 3E01 LD A,+01 F809 D3FE OUT (+FE),A F80B 213F05 LD HL,+053F F80E E5 PUSH HL F80F DBFE IN A,(+FE) F811 1F RRA F812 E620 AND +20 F814 F602 OR +02 F816 4F LD C,A F817 BF CP A F818 C0 RET NZ F819 CD94F8 CALL F894 F81C 30FA JR NC,F818 F81E 211504 LD HL,+0415 F821 10FE DJNZ F821 F823 2B DEC HL F824 7C LD A,H F825 B5 OR L F826 20F9 JR NZ,F821 F828 CD90F8 CALL F890 F82B 30EB JR NC,F818 F82D 069C LD B,+9C F82F CD90F8 CALL F890 F832 30E4 JR NC,F818 F834 3EA6 LD A,+A6 ;+C6 in ROM F836 B8 CP B F837 30E0 JR NC,F819 F839 24 INC H F83A 20F1 JR NZ,F82D F83C 06C9 LD B,+C9 F83E CD94F8 CALL F894 F841 30D5 JR NC,F818 F843 78 LD A,B F844 FED4 CP +D4 F846 30F4 JR NC,F83C F848 CD94F8 CALL F894 F84B D0 RET NC F84C 79 LD A,C F84D EE03 XOR +03 F84F 4F LD C,A F850 2600 LD H,+00 F852 06B0 LD B,+B0 F854 181F JR F875 F856 08 EX AF,AF' F857 2007 JR NZ,F860 F859 300F JR NC,F86A F85B DD7500 LD (IX+00),L F85E 180F JR F86F F860 CB11 RL C F862 AD XOR L F863 C0 RET NZ F864 79 LD A,C F865 1F RRA F866 4F LD C,A F867 13 INC DE F868 1807 JR F871 F86A DD7E00 LD A,(IX+00) F86D AD XOR L F86E C0 RET NZ F86F DD23 INC IX F871 1B DEC DE F872 08 EX AF,AF' F873 06B2 LD B,+B2 F875 2E01 LD L,+01 F877 CD90F8 CALL F890 F87A D0 RET NC F87B 3ECB LD A,+CB F87D B8 CP B F87E CB15 RL L F880 06B0 LD B,+B0 F882 D277F8 JP NC,F877 F885 7C LD A,H F886 AD XOR L F887 67 LD H,A F888 7A LD A,D F889 B3 OR E F88A 20CA JR NZ,F856 F88C 7C LD A,H F88D FE01 CP +01 F88F C9 RET F890 CD94F8 CALL F894 F893 D0 RET NC F894 3E16 LD A,+16 F896 3D DEC A F897 20FD JR NZ,F896 F899 A7 AND A F89A 04 INC B F89B C8 RET Z F89C 3EFF LD A,+FF F89E DBFE IN A,(+FE) F8A0 1F RRA F8A1 D0 RET NC F8A2 A9 XOR C F8A3 E620 AND +20 F8A5 28F3 JR Z,F89A F8A7 79 LD A,C F8A8 2F CPL F8A9 4F LD C,A F8AA 3E01 LD A,+01 F8AC E607 AND +07 F8AE F608 OR +08 F8B0 D3FE OUT (+FE),A F8B2 37 SCF F8B3 C9 RET F8B4 00 DB 0 ;header F8B5 00 DS 10 ; name F8BF 0000 DW 0 ; total length of the data/lenth of the last block F8C1 0000 DW 0 ; start of the first block F8C3 00 DB 0 ; number of blocks F8C4 00 DS 4 F8C8 0000 DW 0 ;block start F8CA 00 DB 0 ;block number F8CB 16 DB AT,0,0,"Loading:-",AT,1,0 F8DA 3E01 LD A,1 F8DC CD0116 CALL +1601,CHAN_OPEN F8DF 010F00 LD BC,+000F F8E2 11CBF8 LD DE,+F8CB F8E5 CD3D20 CALL 203D F8E8 010A00 LD BC,+000A F8EB 11B5F8 LD DE,+F8B5 F8EE CD3D20 CALL 203D F8F1 3E20 LD A,+20 F8F3 D7 RST 0010,PRINT_A_1 F8F4 3E20 LD A,+20 F8F6 D7 RST 0010,PRINT_A_1 F8F7 3ACAF8 LD A,(F8CA) F8FA F5 PUSH AF F8FB CD0AF9 CALL F90A F8FE F1 POP AF F8FF CD1CF9 CALL F91C F902 3ACAF8 LD A,(F8CA) F905 3C INC A F906 32CAF8 LD (F8CA),A F909 C9 RET F90A CB3F SRL A F90C CB3F SRL A F90E CB3F SRL A F910 CB3F SRL A F912 FE0A CP +0A F914 3802 JR C,F918 F916 C607 ADD A,+07 F918 C630 ADD A,+30 F91A D7 RST 0010,PRINT_A_1 F91B C9 RET F91C E60F AND +0F F91E 18F2 JR F912
FC5A 210000 LD HL,+0000 FC5D 2258FC LD (FC58),HL FC60 218AFC LD HL,+FC8A FC63 2286FC LD (FC86),HL FC66 7E LD A,(HL) FC67 5F LD E,A FC68 1600 LD D,+00 FC6A 2A58FC LD HL,(FC58) FC6D 19 ADD HL,DE FC6E 2258FC LD (FC58),HL FC71 2A86FC LD HL,(FC86) FC74 115DFF LD DE,+FF5D FC77 A7 AND A FC78 ED52 SBC HL,DE FC7A CAFDFC JP Z,FCFD FC7D 2A86FC LD HL,(FC86) FC80 23 INC HL FC81 2286FC LD (FC86),HL FC84 18E0 JR FC66 FC86 0000 dw 0 FC88 6141 dw #4161 FC8A 00 db 00 ;the number of the subblock to load FC8B FF db +FF FC8C ds 10 ;header - name FC96 db ; #20 FC97 db ; number of the subblocks FC98 db ; subblock number FC99 dw ; lenght of the last block FC9B dw ; start of the block FC9D dw ; start of the last block FC9F db 00 FCA0 FF db +FF FCA1 ds 19 ;copy of the header (for reloading) FCB4 db 00 FCB5 0000 dw 00 ;addr of the active header FCB7 0000 dw 0000 ;start addr of the block to load FCB9 00 db 00 ;1=reload block FCBA 160000 db "Loading:-" FCC9 160000 db "Searching:-" FCDA 160000 db "Found:-" FCE7 160010 db "ERRON ON BLOCK:-" FCFD 31FFFF LD SP,+FFFF FD00 CD69FE CALL FE69 FD03 AF XOR A FD04 32B9FC LD (FCB9),A FD07 3E01 LD A,+01 FD09 CD0116 CALL 1601,CHAN_OPEN FD0C 011100 LD BC,+0011 FD0F 11C9FC LD DE,+FCC9 FD12 CD3D20 CALL 203D FD15 AF XOR A FD16 328AFC LD (FC8A),A FD19 CD91FD CALL FD91 FD1C DD2A9BFC LD IX,(FC9B) FD20 DD22B7FC LD (FCB7),IX FD24 3A97FC LD A,(FC97) FD27 FE01 CP +01 FD29 2800 JR Z,FD2B FD2B 47 LD B,A FD2C C5 PUSH BC FD2D 1804 JR FD33 FD2F C5 PUSH BC FD30 CD91FD CALL FD91 FD33 11B60D LD DE,+0DB6 FD36 DD2AB7FC LD IX,(FCB7) FD3A 3EFF LD A,+FF FD3C 37 SCF FD3D CD9BFE CALL FE9B FD40 FB EI FD41 302D JR NC,FD70 FD43 2AB7FC LD HL,(FCB7) FD46 11AC0D LD DE,+0DAC FD49 19 ADD HL,DE FD4A 22B7FC LD (FCB7),HL FD4D 3A8AFC LD A,(FC8A) FD50 3C INC A FD51 328AFC LD (FC8A),A FD54 CD61FE CALL FE61 FD57 C1 POP BC FD58 10D5 DJNZ FD2F FD5A CD91FD CALL FD91 FD5D DD2A9DFC LD IX,(FC9D) FD61 ED5B99FC LD DE,(FC99) FD65 3EFF LD A,+FF FD67 37 SCF FD68 CD9BFE CALL FE9B FD6B 3003 JR NC,FD70 FD6D C3409C JP 9C40 FD70 3E01 LD A,+01 FD72 32B9FC LD (FCB9),A FD75 218CFC LD HL,+FC8C FD78 11A1FC LD DE,+FCA1 FD7B 011300 LD BC,+0013 FD7E EDB0 LDIR FD80 CDC9FD CALL FDC9 FD83 CD49FE CALL FE49 FD86 21ACFC LD HL,+FCAC FD89 3A98FC LD A,(FC98) FD8C BE CP (HL) FD8D 20A1 JR NZ,FD30 FD8F 18C9 JR FD5A FD91 DD218CFC LD IX,+FC8C FD95 111300 LD DE,+0013 FD98 3EFF LD A,+FF FD9A 37 SCF FD9B CD9BFE CALL FE9B FD9E 30F1 JR NC,FD91 FDA0 0602 LD B,+02 FDA2 CD440E CALL 0E44,CL_LINE FDA5 3AB9FC LD A,(FCB9) FDA8 A7 AND A FDA9 2833 JR Z,FDDE FDAB 0611 LD B,+11 FDAD 21A0FC LD HL,+FCA0 FDB0 118BFC LD DE,+FC8B FDB3 1A LD A,(DE) FDB4 BE CP (HL) FDB5 203C JR NZ,FDF3 FDB7 13 INC DE FDB8 23 INC HL FDB9 10F8 DJNZ FDB3 FDBB 3AADFC LD A,(FCAD) FDBE 2198FC LD HL,+FC98 FDC1 BE CP (HL) FDC2 2816 JR Z,FDDA FDC4 CDC9FD CALL FDC9 FDC7 1815 JR FDDE FDC9 011600 LD BC,+0016 FDCC 11E7FC LD DE,+FCE7 FDCF CD3D20 CALL 203D FDD2 DD21A1FC LD IX,+FCA1 FDD6 CD10FE CALL FE10 FDD9 C9 RET FDDA AF XOR A FDDB 32B9FC LD (FCB9),A FDDE 3A8AFC LD A,(FC8A) FDE1 2198FC LD HL,+FC98 FDE4 BE CP (HL) FDE5 200C JR NZ,FDF3 FDE7 010F00 LD BC,+000F FDEA 11BAFC LD DE,+FCBA FDED CD3D20 CALL 203D FDF0 181A JR FE0C FDF2 C9 RET FDF3 3AB9FC LD A,(FCB9) FDF6 FE00 CP +00 FDF8 C4C9FD CALL NZ,FDC9 FDFB 010D00 LD BC,+000D FDFE 11DAFC LD DE,+FCDA FE01 CD3D20 CALL 203D FE04 CD0CFE CALL FE0C FE07 CD49FE CALL FE49 FE0A 1885 JR FD91 FE0C DD218CFC LD IX,+FC8C FE10 DD22B5FC LD (FCB5),IX FE14 010A00 LD BC,+000A FE17 ED5BB5FC LD DE,(FCB5) FE1B CD3D20 CALL 203D FE1E 3E20 LD A,+20 FE20 D7 RST 0010,PRINT_A_1 FE21 3E20 LD A,+20 FE23 D7 RST 0010,PRINT_A_1 FE24 2AB5FC LD HL,(FCB5) FE27 110C00 LD DE,+000C FE2A 19 ADD HL,DE FE2B 7E LD A,(HL) FE2C F5 PUSH AF FE2D CD33FE CALL FE33 FE30 F1 POP AF FE31 1812 JR FE45 FE33 CB3F SRL A FE35 CB3F SRL A FE37 CB3F SRL A FE39 CB3F SRL A FE3B FE0A CP +0A FE3D 3802 JR C,FE41 FE3F C607 ADD A,+07 FE41 C630 ADD A,+30 FE43 D7 RST 0010,PRINT_A_1 FE44 C9 RET FE45 E60F AND +0F FE47 18F2 JR FE3B FE49 06AA LD B,+AA FE4B C5 PUSH BC FE4C 78 LD A,B FE4D 0F RRCA FE4E D3FE OUT (+FE),A FE50 10FB DJNZ FE4D FE52 C1 POP BC FE53 10F6 DJNZ FE4B FE55 C9 RET FE56 00 db 00 FE57 16B0 db +16,+b0,+b2,+cb,+b0 FE5C 15c2 db +15,+c2,+c4,+d8,+c2 FE61 3A56FE LD A,(FE56) FE64 FE00 CP 0 FE66 CA74FE JP Z,FE74 FE69 AF XOR A FE6A 3256FE LD (FE56),A FE6D 215CFE LD HL,+FE5C FE70 CD82FE CALL FE82 FE73 C9 RET FE74 2157FE LD HL,+FE57 FE77 CD82FE CALL FE82 FE7A 3A56FE LD A,(FE56) FE7D 3C INC A FE7E 3256FE LD (FE56),A FE81 C9 RET FE82 7E LD A,(HL) FE83 323EFF LD (FF3E),A FE86 23 INC HL FE87 7E LD A,(HL) FE88 32FCFE LD (FEFC),A FE8B 23 INC HL FE8C 7E LD A,(HL) FE8D 321DFF LD (FF1D),A FE90 23 INC HL FE91 7E LD A,(HL) FE92 3225FF LD (FF25),A FE95 23 INC HL FE96 7E LD A,(HL) FE97 322AFF LD (FF2A),A FE9A C9 RET FE9B D5 PUSH DE ;LD_BYTES FE9C F5 PUSH AF FE9D 2A88FC LD HL,(FC88) FEA0 ED5B58FC LD DE,(FC58) FEA4 37 SCF FEA5 3F CCF FEA6 ED52 SBC HL,DE FEA8 C20000 JP NZ,0000,START FEAB F1 POP AF FEAC D1 POP DE FEAD 14 INC D FEAE 08 EX AF,AF' FEAF 15 DEC D FEB0 F3 DI FEB1 3E01 LD A,+01 FEB3 D3FE OUT (+FE),A FEB5 213F05 LD HL,+053F FEB8 DBFE IN A,(+FE) FEBA 1F RRA FEBB E620 AND +20 FEBD F602 OR +02 FEBF 4F LD C,A FEC0 BF CP A FEC1 C0 RET NZ FEC2 CD3DFF CALL FF3D FEC5 30FA JR NC,FEC1 FEC7 211504 LD HL,+0415 FECA 10FE DJNZ FECA FECC 2B DEC HL FECD 7C LD A,H FECE B5 OR L FECF 20F9 JR NZ,FECA FED1 CD39FF CALL FF39 FED4 30EB JR NC,FEC1 FED6 069C LD B,+9C FED8 CD39FF CALL FF39 FEDB 30E4 JR NC,FEC1 FEDD 3EA6 LD A,+A6 FEDF B8 CP B FEE0 30E0 JR NC,FEC2 FEE2 24 INC H FEE3 20F1 JR NZ,FED6 FEE5 06C9 LD B,+C9 FEE7 CD3DFF CALL FF3D FEEA 30D5 JR NC,FEC1 FEEC 78 LD A,B FEED FED4 CP +D4 FEEF 30F4 JR NC,FEE5 FEF1 CD3DFF CALL FF3D FEF4 D0 RET NC FEF5 79 LD A,C FEF6 EE03 XOR +03 FEF8 4F LD C,A FEF9 2600 LD H,+00 FEFB 06B0 LD B,+B0 FEFD 181F JR FF1E FEFF 08 EX AF,AF' FF00 2007 JR NZ,FF09 FF02 300F JR NC,FF13 FF04 DD7500 LD (IX+00),L FF07 180F JR FF18 FF09 CB11 RL C FF0B AD XOR L FF0C C0 RET NZ FF0D 79 LD A,C FF0E 1F RRA FF0F 4F LD C,A FF10 13 INC DE FF11 1807 JR FF1A FF13 DD7E00 LD A,(IX+00) FF16 AD XOR L FF17 C0 RET NZ FF18 DD23 INC IX FF1A 1B DEC DE FF1B 08 EX AF,AF' FF1C 06B2 LD B,+B2 FF1E 2E01 LD L,+01 FF20 CD39FF CALL FF39 FF23 D0 RET NC FF24 3ECB LD A,+CB FF26 B8 CP B FF27 CB15 RL L FF29 06B0 LD B,+B0 FF2B D220FF JP NC,FF20 FF2E 7C LD A,H FF2F AD XOR L FF30 67 LD H,A FF31 7A LD A,D FF32 B3 OR E FF33 20CA JR NZ,FEFF FF35 7C LD A,H FF36 FE01 CP +01 FF38 C9 RET FF39 CD3DFF CALL FF3D FF3C D0 RET NC FF3D 3E16 LD A,+16 FF3F 3D DEC A FF40 20FD JR NZ,FF3F FF42 A7 AND A FF43 04 INC B FF44 C8 RET Z FF45 3EFF LD A,+FF FF47 DBFE IN A,(+FE) FF49 1F RRA FF4A D0 RET NC FF4B A9 XOR C FF4C E620 AND +20 FF4E 28F3 JR Z,FF43 FF50 79 LD A,C FF51 2F CPL FF52 4F LD C,A FF53 3E01 LD A,+01 FF55 E607 AND +07 FF57 F608 OR +08 FF59 D3FE OUT (+FE),A FF5B 37 SCF FF5C C9 RET