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<1…17181920212223…34>
  • Zombie Zombie Loading SchemeA quick check of the [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0005866"]Zombie Zombie[/URL] loader identifies it's the RAPID LOADING SYS…

    ... ; 5d19 23 $06ts
    jr nz, l_5d12 ; 5d1a 20 f6 $07 ... fe 5e $07ts
    jr nz, l_5d29 ; 5d30 20 f7 $07 ... cd 6e 5d $11ts
    jp $5e5d ; 5d6b c3 5d 5e ... 21 7c 5d $0ats
    jp $0561 ; 5d79 c3 61 05 ... 38 a1 $0c/$07ts
    jp l_5dbb ; 5e5f c3 bb 5d ...
    jp jp February 2011 Infoseek database
  • SE Basic Type-ins^Pete suggested creating a sticky thread for SE Basic discussion. I thought a Type-ins thread might also be useful. Up to the mods if they want to ma…

    ... /> cp 0 ;
    jr nz, getxp ;
    pop af ;< ... an AT control
    jr nz, crchq ; code, set ... a return control
    jr nz, vchrq ; code, move down ... is set
    jr nz, fchr ;+ just print a ... br /> sub 165 ;+
    jp 0x0c10 ;+ exit via PO_TOKENS
    chev chev April 2011 Sinclair Basic
  • SE Basic Type-ins^Pete suggested creating a sticky thread for SE Basic discussion. I thought a Type-ins thread might also be useful. Up to the mods if they want to ma…

    ...
    ex de,hl
    jp m_room

    org ... br /> cp $50
    ret nz

    do_cr: xor ... br /> dec c
    jr nz,pos_0a
    ret
    < ... br /> dec c
    jr nz,pos_1a
    ret
    < ... br /> dec c
    jr nz,pos_2a
    ret
    ...
    chev chev April 2011 Sinclair Basic
  • Your Views on... GhostbustersI dusted off the Master System version of this and inspired me to try out the Speccy version. It's a good game with it's strong and weak points. I …

    ... />
    DEC A
    JR NZ,ADDRS
    LD BC,$0000 ... HL
    DJNZ DONE2
    JP $8300 ;fast loader jumps to ...
    Jimmy Jimmy May 2011 Games
  • Your Views on... GhostbustersI dusted off the Master System version of this and inspired me to try out the Speccy version. It's a good game with it's strong and weak points. I …

    ... />
    DEC A
    JR NZ,ADDRS
    LD BC,$0000 ...
    LD SP,$FFFF
    JP $8300 ;fast loader jumps to ...
    Jimmy Jimmy May 2011 Games
  • Your Views on... GhostbustersI dusted off the Master System version of this and inspired me to try out the Speccy version. It's a good game with it's strong and weak points. I …

    ... />
    DEC A
    JR NZ,ADDRS
    LD BC,$0000 ... HL
    DJNZ DONE2
    JP $8300 ;fast loader jumps to ...
    jp jp May 2011 Games
  • Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…

    ... CP 0
    JR NZ,GETXP
    POP AF< ... CP 22
    JR NZ,CRCHQ
    LD A, ... CP 13
    JR NZ,VCHRQ
    CALL DWNCR
    CP 0
    JP Z,PUTIT
    LD ...
    chev chev May 2011 Sinclair Basic
  • AY Magic version for ZX81 was bornModified Ay magic ,my previous interface for zx48. On board, ay chip based on Zonx interface but with stereo output and rampack 16 or 32 kilo on boa…

    ... /> ld (ayregs + ar_amplb), hl
    jp rout_a0

    p3x_init:
    and a
    jr nz, p3x_initv2
    jp rout_a0

    < ... br /> dec (hl)
    jr nz, pl1b

    adinpta:< ... /> dec (hl)
    jr nz, p3x_delay
    ld ix, chanc ...
    chev chev May 2011 Hardware
  • Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…

    ... /> and a ;
    jr nz, getxp ;
    pop af ;< ... an AT control
    jr nz, crchq ; code, set the ... is a return
    jr nz, vchrq ; control code, move ... is set
    jr nz, fchr ; just print a ... br /> sub 165 ;
    jp 0x0c10 ; exit via PO_TOKENS
    chev chev May 2011 Sinclair Basic
  • fast font engine possible?inspired by the recent "proportional font" thread for zx basic and ideas for gui and having done some of the work on this in the past i wonder if it …

    ...
    cp a,#0D
    jp z,.printCR
    cp a ... ,#80
    jp nc,.printQuit
    cp a ... ,32
    jp c,.printQuit
    ld e ...
    dec d
    jr nz,.charShiftLoop
    rl c
    Ketmar Ketmar May 2011 Development
  • Google Earth.Google Earth/ maps satellite view is fascinating I could spend hours on it. There are just so many weird and unexplained mysteries within in it. L…

    ... /> [url]http://maps.google.co.nz/maps?f=q&source ... ][/QUOTE]

    Which [i]jp[/i] linked to in the ...
    deadpan666 deadpan666 June 2011 Chit chat
  • Why doesn't my routine work?I have a "level" defined by 504 bytes (28 squares across x 18 squares down) I'm trying to write a routine that will take an X,Y coordinate in pixels…

    ... ;543906]If you use that JP 56 then you have to ... .
    OR L ;
    JR NZ,L0048 ; Forward, if not, to ...
    Dr BEEP Dr BEEP June 2011 Development
  • Man tests law by claiming to be a 'pastafarian'While reading this [URL="http://www.stuff.co.nz/oddstuff/5289988/Man-tests-law-by-claiming-to-be-a-pastafarian"]article[/URL] I thought of Rubberkeys…

    [QUOTE=jp;549411]While reading this [URL="http://www.stuff.co.nz/oddstuff ...
    GreenCard GreenCard July 2011 Chit chat
  • RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…

    ... value by decrementing it
    jp m, CHK_AT ; expecting a ... regular character?
    jr nz, GET_ROW ; expecting the AT ... ; specified keyword 'AT'?
    jr nz, CHK_CR ; continue otherwise
    ld ...
    Einar Saukas Einar Saukas July 2011 Development
  • RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…

    ... value by decrementing it
    jp m, CHK_AT ; expecting a ... regular character?
    jr nz, GET_ROW ; expecting the AT ... ; specified keyword 'AT'?
    jr nz, CHK_CR ; continue otherwise
    ld ...
    Einar Saukas Einar Saukas July 2011 Development
  • Thinking in Assembly (first efforts)The following is one small routine to educate myself on a few concepts (jumps, flow control, routines, CPI): [code]searchmem xor a …

    ... /> [B]teste[/B]
    [B] jp .found ; teste.found[/B]
    ret po
    [B] jr nz, .search [/B]
    .found dec ... /> [B]teste[/B]
    [B] jp .found ; teste.found[/B]
    Einar Saukas Einar Saukas July 2011 Development
  • RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…

    ... value by decrementing it
    jp m, CHK_AT ; expecting a ... regular character?
    jr nz, GET_ROW ; expecting the AT ... ; specified keyword 'AT'?
    jr nz, CHK_CR ; continue otherwise
    ld ...
    Einar Saukas Einar Saukas August 2011 Development
  • RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…

    ... value by decrementing it
    jp m, CHK_AT ; expecting a ... regular character?
    jr nz, GET_ROW ; expecting the AT ... ; specified keyword 'AT'?
    jr nz, CHK_CR ; continue otherwise
    ld ...
    Einar Saukas Einar Saukas August 2011 Development
  • automatic relocating of non-relocatable codeI was pondering upon the problem of changing absolute addresses used by CALL, JP, etc. when code is moved, without reassembling at the new location; …

    ... , there is a POP HL:JP (HL) sequence in the main ... /> 1FC7 RET Z
    1FC8 JP (HL)[/code]
    So, a ... long as NZ is set, you can use ... A
    INC A ; Set NZ
    CALL 1FC6 ; HL now ...
    Jonathan Harston Jonathan Harston August 2011 Development
  • RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…

    ... by decrementing it
    jp m, CHK_AT ; expecting a ... specified keyword 'AT'?
    jr nz, CHK_CR ; continue otherwise
    ... ; specified comma?
    ; jr nz, DRIVER ; continue otherwise
    ; ...
    Einar Saukas Einar Saukas August 2011 Development
  • machine code loadercan someone have a look at this loader and break down what its actually doing and also how i can stop it from executing the 2 loads of headerless blo…

    ... CP FF
    5B18 JR NZ,5B11
    5B1A LD IX ... JR NC,5B29
    5B38 JP 5CB6
    5B3B NOP
    Geoff Geoff August 2011 Sinclair Miscellaneous
  • Keys redefine routine and key check.I have written some asm code which allows me to redefine keys (for a game etc.), and also allows me to be able to check any keypresses for the redefi…

    ... all the ports
    jp loopk2
    keyrd in ... 31 is no keypressed, hence nz means key pressed on that ... ;defining 6 keys
    jp z,exit ;EXIT HERE
    call 3503
    jp exit
    border defb 0 ... br /> ret z
    jp nokey
    counters defb 0 ...
    R-Tape R-Tape September 2011 Development
  • line, plot and circle in whole 256x192 displayhi! are there some way to draw lines, or whatever, in the whole 256x192 display, than just the above 256x176 part? (this is the msx1 version i made o…

    ... D" = draw
    RET NZ ;RET to BAS with other ... br /> JR NC,dod1 ;jp if positive dir
    ... br /> JR NC,dod2 ;jp if positive
    DEC ... longest distance'
    JR NZ,donext ;if more to ...
    roko roko September 2011 Sinclair Basic
  • a bit of coding helphi all over the past few weeks i have been busy getting to grips with recracking tr-dos stuff for the plus-d and was after a little bit of help what…

    ... /> sbc hl,de
    jr nz,aloop1
    aloop2 ld l ... /> ld h,(ix-1)
    jp (hl)
    ;
    atable dw ...
    Turkwel Turkwel October 2011 Development
  • MCODE problem...Hi Folks, Trying to write a simple machine code program to hatch the screen. So far I have the following but even this is not working - it does not…

    ... (HL),r ; INC L ; JR NZ,e (or the same 21T ... if you change JR to JP). You get an extra contention ...
    dec c
    jr nz,loop1
    stack: ld sp ...
    obo obo October 2011 Development
  • a bit of coding helphi all over the past few weeks i have been busy getting to grips with recracking tr-dos stuff for the plus-d and was after a little bit of help what…

    ... /> sbc hl,de
    jr nz,aloop1
    aloop2 ld l ... /> ld h,(ix-1)
    jp (hl)
    ;
    atable dw ...
    djgarf djgarf October 2011 Development
  • Need help with tzxingI recently got a copy of this Polish text game: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0006622[/url] I can't make a tzx of it howeve…

    ... br /> PUSH BC
    JP 7878
    L49434: EXX< ... L49557: DEC A
    JR NZ,L49557
    L49560: AND ... L49586: DEC A
    JR NZ,L49586
    JR L49596
    JR L49557
    L49650: JP NC,0
    LD A ... /> PUSH HL
    JP C,1343[/CODE]
    Ralf Ralf October 2011 MIA/STP/SDP
  • Need help with tzxingI recently got a copy of this Polish text game: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0006622[/url] I can't make a tzx of it howeve…

    ... A ; C195 3D
    JR NZ, L_C195 ; C196 20 FD
    L_C1F2: JP NC, $0000 [$C238] ; C1F2 D2 ...
    Battle Bunny Battle Bunny October 2011 MIA/STP/SDP
  • Fastest way to mirror a byte?I.E. turning 01100000 into 00000110, in assembly. I'm trying but I suck at stuff with rotation and the carry bit. Any pointers?

    ... until B=0.
    JP (HL) Unconditional jump to ... location (HL).
    JP (IX) Unconditional jump to location ... (IX).
    JP (IY) Unconditional jump to location ... carry=0.
    JR NZ,e Jump relative to PC ...
    Ralf Ralf October 2011 Development
<1…17181920212223…34>

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