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New project for 256 colours Games emulator!O.K. , I suggested Jonathan Needle ( Creator of the excellent Spectaculator at [url="http://www.Spectaculator.com"]www.Spectaculator.com[/url] ) to c…
... 't much incentive for authors in it.
[/quote]
:) I think in terms of 8 z80s running ... s display, bit 6 comes from z80-6's display, bit 5 comes ... this 8-bit value and look it up in a ... a single 64-bit z80 than 8 z80s in parallel, as ... -
Best demosOK, this probably only applies to demo dudes like Yerz, LCD, etc., but... What are the greatest demos you've ever seen ? I mean something like stari…
It works in Spectaculator 6.0 using Scorpion 256 ... Some of the 'still photographs' in the first part appear only ... the guy has something in his palm which is ... if there's any difference in RealSpectrum.
... palm, there's a bit of a pause here until ... -
I would like to write emulatorHi guys, I'm new to this forum but I realise that you must get loads of posts from people asking "how do I write an emulator" so I'll try and be spe…
... set everytime an addition resulted in a wrap around? For instance ... ) if you look at it in unsigned binary, of course but ... use. This carry from bit 6 to bit 7 is an overflow and ... -
zx32 and Windows XPI like zx32 and I use it for all the games I download from WOS. But does this emulator work under Windows XP ? You see, I am going to upgrade my comp…
... 's sound emulation is every bit as good as any other ... say that beauty is in the eye (or ear, in this case) of ... -
Read the joystickAnyone written a nice joystick reading snippet?
IF 2 Port 1 and 2 are just the IN's from row 1-0
Cursor also, but with bit 4 tested on first in and second in for key 5 and key 6
Bit 3 for 7 on second in
Bit 2 for 8
Bit 0 for 0
See the manual for the right IN. -
Need help with my P flag!Not sure if I've emulated the P flag correctly when its comes to overflows. Here's what I've done: LD A,123 LD B,16 ADD A,B Twos Complement of 123 …
... easy - it just picks up bit 7 of A. I think ... the result doesn't fit in 8-bit 2's complement, it ... the carry out (borrow?) from bit 6 as the addition (subtraction?) is ... -
ADCI'm a little confused about how the Z80 manages the ADC instruction. I'm assuming two ADD instructions are performed (am I wrong?!) I can think of 3 …
... operand bits and a carry in bit. A block diagram for ... an 8-bit adder (as in a z80 8-bit add instruction ... with the least significant bit on the right and ... Cin of the least significant bit (A0/B0) are left ... XOR carry out of bit 6).
In a high level ... -
IN Port FE bit 6 confusionI know I've got this wrong. Tapes load fine but it all feels messy. Currently my emulator does this: Sets bit 6 of the result to 0. If (and only if…
... :
If (and only if) bit 7 of the high byte ... the address is 0 then bit 6 is set based on the ... not do this only if bit 0 is 0?
You ... treating all port reads with bit 0 as zero as if ... , and copy the current Ear value to bit 6. There's no extra ... -
Starquake.Hi everyone I've just recently added Starquake to the HARP Database, if anyone should be interested in showing their skills in that game. For those…
... etc... When zeroed, all rooms in that segment have been visited ... />
01111111 = I am in start room (Bit 7 zero) = $7F
Bit 6 now zero) = $3F
number in the scoring table.
New Compo IdeaI've had this idea and would like to know what do you think about it. I think that most of us here know how to code in BASIC. The problem with Specc…
... 5
IN 61438 0 to 6
IN 57342 P to ... 7
IN 49150 ... is mapped to the keys 6, 7, 8, 9 ... mapped to the keys 5, 6, 7, 8 and 0 ... PAPER 7: CLS
6 PRINT AT 20,20; INK ... the last character in the message having bit 7 set to ...Polyphonics and Ringtones...Im bored, so Im just askin, so if youre bored you could reply... ...you dont have to if you dont wanna ;) so... What ringtones do you have on yo…
... we've grown up a bit
6) Because other people think ... all my ringtones'
7) In years to come you'll ... have about 50 is a bit odd
9) Because of ... you, why isnt it sad ? In the last 5 years when ...PRINT AT in assembler Hello everyone, I am very new to this forums. Like perhaps many others I had a Spectrum as a child and did pretty much simple BASIC programming, bu…
... numbers directly into memory. (A bit cumbersome of course, but I ... works.)
A look in the online Spectrum manual and ... number 205, so I put in 205,6,65. Is this a ...PRINT AT in assembler Hello everyone, I am very new to this forums. Like perhaps many others I had a Spectrum as a child and did pretty much simple BASIC programming, bu…
... :
A look in the online Spectrum manual and ... , so I put in 205,6,65. Is this ... br /> No. All 16-bit operands in Z80 assembler are little-endian ... , so you want 205,65,6 ... you're CALLing 65 * 256 + 6 = 0x4106.
( ...Spectrum IDE port addressesWith eight standard IDE ports to address and with the common access to information via the internet I would have thought that Spectrum IDE add-on har…
... bit 5 or bit 7 for zero). Bit 7 also blocks 8255 chip in ... Didaktik Gama clone.
- Bit 0 blocks ... example Arkanoid) use infamous IN A,(#FF). Bit 6 was chosen for this ... ZXCF and ZXATASP use 16-bit port access which other interfaces ...need help with (short) reviewsi'm trying to make web with complete archive of czech and slovak speccy games. at this point i have 100+ of them on my HDD and i add them slowly to …
... :
I may be a bit slow at delivering the goods ... with few filters (year, company)? in, say, 6-12 months :)
Draft specs for TZX v1.20Hi all! In the attempt to restart the development of the TZX format, I've put online the first version of the draft document [1]. At the moment ther…
... able to do the same in emulators.[/quote]
I ... or just run the program in an enviroment that loosely resembles ... could it it change every IN/OUT $FE instruction on the ... /loading is done on bit 6 instead of bit 7? I'd say ...Lesser used BASIC commandsAre there any interesting articles or books that explore some of the lesser used BASIC commands/functions e.g. DEF FN, IN, OUT etc? The Spectrum BAS…
... /> ..,,.. 23658 FLAGS2 BIT 5,6,7
..,,.. 23665 FLAGX BIT 2,3,4 ...
..,,.. 23612 TVFLAG BIT 6 ... ,7
in my "BASIC ZAKBOEKJE" they ...Shoot-em-up Development UpdateHi Folks, I am still working away at my horizontal scroller. Here is a link to let you see progress. I have re-written the scrolling routine to make…
... each level being stored in another RAM page then ... ]
; Do first tile in row[/FONT]
[ ... [FONT=Courier New]; Last tile in row
LASTTILE ... br /> [FONT=Courier New] BIT 6,H: JR NZ,DRAW_LAST_TILE[/FONT ...ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…
... /> uchar nload; // +0 bit 7 = 1 for invalidated, bit 6 = 1 for removed ... width; // +2 width of sprite in tiles
uchar height; // +3 ...ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…
... bit 7 = 1 occluding, bit 6 = 1 last column, bit 5 = 1 last row, bit ... bytes ; points at code embedded in sprite struct sp1_ss
in the "struct sp1_cs" will use ... draw function draws the graphics in the pixel buffer and ...ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…
... bit 7 = 1 occluding, bit 6 = 1 last column, bit 5 = 1 last row, bit ... another variation of sp1_ClearRect() in the library called sp1_ClearRectInv(). ... and SP1_RFLAG_SPRITE causes sprites in the area to be ... SP1_RFLAG_COLOUR flag bit is set, only the colour in the ...ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…
... { // "update structs" Every tile in the display area managed by ... uchar nload; // +0 bit 7 = 1 for invalidated, bit 6 = 1 for removed ... /> uchar *screen; // +7 address in display file where this tile ...Sprite adviceHello. So, I'm slowly getting to grips with Z80 assembly - currently equal parts frustration and enjoyment. Now looking for some advice to help shift…
... insert the formatted text boxes in VB?).
;;;;;;; ... shipy value i.
bit 6,a ;test if > ... br />
;;;;;;;;;
In my routine I have to ... by 1 (256 decimal) in the first segment of ... of the character lines in middle third of the ...GacDid anybody at WOS write a good adveture with GAC? I spent hours making adventures with it and thought it was a really good product and nearly finish…
... /> I've wrote a game in inform 6. Inform is a great ... system, very natural for writing games in ... start with the early 8-bit era. Later I'll probably ...The Only Reason Sinclair Succeeded (Provoking Controversy)Although I love my Sinclairs dearly, I think that the only reason they succeeded was because at the time most people did not know any better (factori…
... others."
In just 6 months or less Timex (with ... to back up in history a little bit more. People buying ... . Despite likely being discarded in large numbers, it nevertheless ... run Spectrum games without change in display quality. The Spectrum ...RAM chips are 4164s and 4564s interchangeableI paid for some 4164s online, for upgrading my Spectrum 16K to 48K, and I've been given 4564s. I've tried these along with the correct logic ICs and …
... their 157's for use in the Spectrum.
Try ... chips, and put them back in random order. Do this a ... RAM doesn't test every bit of RAM, just every address ... dodgy at (say) address 65368 bit 6, everything will work fine until ...Not so BRIGHTOk, on the Spectrum I'm a crayon man so I don't know much about the coding. If I create a graphic in, say, SevenUp or TommyGun and the graphic is not…
... ]If I create a graphic in, say, SevenUp or TommyGun and ... ]
Yes, just set bit 6 of the attribute bytes. Or ... the total is >= 128. In which case if the total ...
