-
Help make Retro Gamer greatI'm more than happy with the articles that are now appearing in Retro Gamer, but I want it to become far more of a hub for the retro community than i…
... well as proposed add-on boards to fit a SID to ... don't usually come with a superiority complex.
... would want to add one to a Plus/4; a lot of ... wanted, was used in a huge number of computers, ... />
Anyway, let me add my voice to those saying ... -
Anybody fancy coding this?blah de blah de blah Please ignore, poting error.
... ld a, (hl)
ex af, af'
xor a
L2 ld (hl), a ...
cp (hl)
ex ... af, af'
ld (hl), a
Anybody fancy coding this?blah de blah de blah Please ignore, poting error.
... the three registers HL, DE, and ... hl, 16384+24
L1 ld e, (hl)
xor a ...
L2 ld (hl), a
cp (hl)
ld (hl ... ), e
jr nz, END
inc a ...Anybody fancy coding this?blah de blah de blah Please ignore, poting error.
... is Spectrum memory (on a 48K machine) has 1 ... br />
LD A, %10101010
LD (HL), A
... because when you select a memory address, say, 16384 ... influence error is setting a bit more distant than ... bank is filled with a pseudo random pattern, then ...MyspaceDoes anyone here use it? If so, then feel free to add me. My profile is at :- [url]http://www.myspace.com/nomen_luni[/url] I'm waiting. :)
... page! Feel free to add me as a friend.[/QUOTE]
Bob, I notice you have a Turisas entry in your page ...The Unofficial Official 25th Anniversary celebrations and Website announcement threadAs Martijn's going to be away during the festivities, can people report what they're doing here please, as and when they have something to announce. …
... . There is a section for members to add their collection, a shop so ...Converting GAC GamesHiya folks, I'm currently getting really into GAC on the Plus 4 (yes I know its a Commodore machine) and just released my first game last week. GAC…
... =liftarn;187989]Do you have a GAC compiler that can tak ... can edit your adventures using a normal text editor rather than ... a text editor on the pc to make a few alterations then add ... it to a D64 image ...Comments for small "sprite" routine wantedI have just written my first machine code program and I am quite happy (and proud) to get it working! :smile: As a child I never learned anything e…
... first byte
ld a,(hl) ;load the first screen ... to right
ld (hl),a ;write earlier rotated byte to ... ld a,(hl) ;load into a
rr a ;rotate it
ld (hl),a ;write ... to screen memory
dec hl ...Comments for small "sprite" routine wantedI have just written my first machine code program and I am quite happy (and proud) to get it working! :smile: As a child I never learned anything e…
And you can save registers by using the (HL) commands
LD A,(HL)
RR A
LD (HL),A
is equal to
RR (HL)
in functionComments for small "sprite" routine wantedI have just written my first machine code program and I am quite happy (and proud) to get it working! :smile: As a child I never learned anything e…
[quote=Dr BEEP;192256]
LD A,(HL)
RR A
LD (HL),A
[/quote]
Be careful about RR A. It is only for compatibility reason with i8080, Z80 has RRA which is only 4T cycles.Comments for small "sprite" routine wantedI have just written my first machine code program and I am quite happy (and proud) to get it working! :smile: As a child I never learned anything e…
... load the screen address into A (as in my code) and ... 're doing is "LD A, (HL) / RR A / LD (HL), A" then it's generally ... better to do "RR (HL)". It ...Comments for small "sprite" routine wantedI have just written my first machine code program and I am quite happy (and proud) to get it working! :smile: As a child I never learned anything e…
... 're doing is "LD A, (HL) / RR A / LD (HL), A" then it's generally ... :)).[/QUOTE]
"LD A, (HL) / RR A / LD (HL), A" are 4 bytes
"RR (HL)" are 2 bytes
"LD A, (HL) / RRA / LD (HL), A" are ...Comments for small "sprite" routine wantedI have just written my first machine code program and I am quite happy (and proud) to get it working! :smile: As a child I never learned anything e…
[QUOTE=Dr BEEP;192337]"LD A, (HL) / RR A / LD (HL), A" are 4 bytes
"RR (HL)" are 2 bytes
"LD A, (HL) / RRA / LD (HL), A" are 3 bytes[/QUOTE ... ... and to think, I have a copy of Zaks book right ...Comments for small "sprite" routine wantedI have just written my first machine code program and I am quite happy (and proud) to get it working! :smile: As a child I never learned anything e…
... br /> loadgraphic
ld hl,16384 ;screen address
ld ... memory
ld (hl),a ;put graphic into screen ... right
ld hl,16384 ;screen address to ... main loop
rr (hl) ;rotate first screen byte to ... right
rr (hl) ;rotate second screen byte ...Comments for small "sprite" routine wantedI have just written my first machine code program and I am quite happy (and proud) to get it working! :smile: As a child I never learned anything e…
... br /> loadgraphic
ld hl,16384 ;screen address
ld ... memory
ld (hl),a ;put graphic into screen ... right
ld hl,16384 ;screen address to ... main loop
rr (hl) ;rotate first screen byte to ... right
rr (hl) ;rotate second screen byte ...What WAS going to be bundled with Bandersnatch?Just saw a documentary about the death of Imagine ( [url]http://video.google.com/videoplay?docid=-1012096952890708986[/url] ) and apparently they wer…
... show the supposed megagame "add-on" as a bundle of wires and ... down to the size of a cartridge, but they never said ...RDS Software FAO Martijnhttp://www.worldofspectrum.org/infoseek.cgi?regexp=^Disassembler+and+Workbase$&pub=^RDS+Software$ Martijn my old friend, That TZX came from a genui…
... friend, That TZX came from a genuine, proper commercial copy. ... it's not a back up copy, it ... , I wanted to add this tape a.s.a.p. and this ... you could say he was a talented "bedroom hacker".[/quote] ... author wanted to let you add it to your PD ...8-bit or 16-bit registers?I'm playing around with writing a Speccy emulator for mobile Java at the moment. I did a quick and dirty port of Qaop, which does run but at less tha…
... ;199392]I don't have a working core of my own ... /> But you don't need a core of your own to ... 16-bit registers and using a 16-bit counter. Is that ... , how do you classify LD (HL),A? I just don't think ... there's a (useful) answer to your question ...8-bit or 16-bit registers?I'm playing around with writing a Speccy emulator for mobile Java at the moment. I did a quick and dirty port of Qaop, which does run but at less tha…
... ]But you don't need a core of your own to ... ). But I hoped asking in a forum where people might have ... , how do you classify LD (HL),A?[/quote]
For what I ... don't think there's a (useful) answer to your question ...8-bit or 16-bit registers?I'm playing around with writing a Speccy emulator for mobile Java at the moment. I did a quick and dirty port of Qaop, which does run but at less tha…
... take the assemble instruction LD (HL), A down to the microcode level ... is made up of half a dozen 16-bit ops pre ...Z80 Developer ConsoleHi, This is a project I have meaning to do for ages, recently had a kid, had some time off work (as a software developer) and surprisingly had a bit…
... you really have a chance at making a completely different ... here.
Using a classic text editor would ... more closely resemble vi than a classic text editor.
a column of the listview ... dead I would add this as a plugin to the ...Help hacking Split PersonalitiesI`ve been hacking away at Split Personalities for the purpose of putting new screens and graphics (items). The current screen is at 41187 and is 160…
... a, 31
ld (hl), a
inc hl
ld a, 48
ld (hl), a ...
inc hl
ld a, 59
ld (hl), a ...Emulation vs SpecApologies if this is an old thread, what does anyone think is the best - playing spectrum games through emulation or on a real speccy? I feel it's b…
... CPU was comparatively modest. A 25MHz Amiga 3000 could ... screen .e.g ld (hl),a etc..
It then ... in quite a good speed improvement. Although a few in ... practical purposes perfect on a variety of systems nowadays, ... but I understand using a real speccy would be ...Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... applied all of your suggestions (a)-(d), also all previous ... suggestions where applicable. A couple of the earlier suggestions ... mentioned, it was a simple matter to add the clause to exit ... one more thing to add would be a change in the colour ...Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... one more thing to add would be a change in the colour ... , via "POKE 23693,x: CLS". A few more saved characters would ... />
[CODE]
POKE (c(a)Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…
... br /> "
still have a decrease, then declare sbuf again ... with ++/-- and instead just add 1 to the address in ... it doesn't just add 256 is that we ... buffer printing you'd pass a different function "f" ... hold the value to add and do a "sbuf += g_uchar0;" ( ...Compressors are available for Speccys ?Hi folks, although I was an wasn't strictly a speccy coder in the glory days (amstrad & amiga for the most part), I have secides to arse about with …
... hl
sbc hl,bc
ld a,(hl)
pop hl
ld (hl),a
inc hl
ex ... de,hl
jr ...Vector drawing routines.Anybody could point me to some sort of vector drawing package of routines, callable from BASIC? With "vector drawing" I mean to draw 2D pictures with…
...
LD D,(HL)
OR (HL)
LD (HL),A
CALL attrib ...Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…
... number of characters needed to add the condition *(aInstalling LinuxI know the answer is RTFM or whatever that means but can someone help with intalling linux I've created a 10GB partition on my hard drive for the in…
You can have a swap file instead of a swap partition if needs ... Ubuntu recently as a "Live CD" - it's a lot easier on ... GRand Unified Bootloader) to add that as a bootable option. If you ... make a mistake - don't panic, so ...
