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Tommy GunHi, Got a few suggestions etc. for Tommy Gun. Well done Kiwi et. al. for a fantastic application. I would like to add the following suggestions: …
... interleave the mask on each row? After each sprite? After ... have written a commandline tool to read the sprite data from ... installed at work - not allowed to)
is the bitmap pixels ... mask pixels
is the attribute data
The letters ... -
New oneliners for 2008[INDENT][INDENT][INDENT]Here's my attempt at a first-person-perspective 3d game in one line of BASIC. It's called 'wormhole', and you've got to get t…
...
[quote]
a - row counter used in printing the ... /> f - loop counter to mark four-in-a-row tokens as FLASHing ... positions of four-in-a-row tokens, to be later marked as ... cell, after the possible FLASH attribute has been (r)emoved (subtracted ... -
help sought with first foray into machine code - pixel scrolldownI have started to code my first machine code program, a simple roadrace game. I've based it around the pixel scrolldown routine in 40 Best Machine Co…
... 18 of the pixel row. The next copy operation ... 10 bytes from another pixel row but one character up. ... do copy operations in pixel row order easily. push ix ... the first byte of the attribute file. Why not $57ff ... you move up to the previous pixel row, do its last ... -
New oneliners for 2008[INDENT][INDENT][INDENT]Here's my attempt at a first-person-perspective 3d game in one line of BASIC. It's called 'wormhole', and you've got to get t…
... Field 1,1 is set to 1
2 A loop ...
3 A loop for columns is entered
4 Calculate ... random direction is calculated, provided to stay in maze
6 ... next colum
13 next row -
New oneliners for 2008[INDENT][INDENT][INDENT]Here's my attempt at a first-person-perspective 3d game in one line of BASIC. It's called 'wormhole', and you've got to get t…
... /> 3 A loop for columns is entered
4 ... direction is calculated, provided to stay in maze
13 next row[/QUOTE]
... have one small improvement to suggest. Your algorithm will ... I suggested actually means to replace something like ... -
New oneliners for 2008[INDENT][INDENT][INDENT]Here's my attempt at a first-person-perspective 3d game in one line of BASIC. It's called 'wormhole', and you've got to get t…
... 37 rooms counted from 0 to 36.
The roomnumbering ... /> Now I need a routine to shift the rooms.
I ... rows and columns like this
Column A
Row 2
Column C
Row 4
... I need a short code to do the shift or if ... -
Decoding of speccy keyboardHello everyone. I face following problem with spectrum keys decoding and need some explanation. I know how to decode a single key press by reading po…
... /> Each you stick to a single half row (e.g. 67890 ... you stick to a SINGLE BIT across all 8 columns (e.g ... column (8 keys) AND one row (5 keys - less 1 key ... is already counted in the columns) giving a total of ... No other keys are allowed to be pressed however as it ... -
Games with Parallax ScrollingI loved that effect. It gave a false depth to the game.. To me a game with parallax scrolling was a better game. How wrong I was.. anyway, a list of…
... have vertical or horizontal attribute stripes which span the ... of your scrolling area; needless to say, these attributes "naturally" ... graphics in the same row/column with a different ... 8 pixels matching the attribute scroller position to help giving the ... -
ZX Spectrum Sound Upgrade to C64Would it be possible to interface in a seperate C64 style SID sound device to the ZX Spectrum to make existing ZX Spectrum games sound like their C64…
... UDGs from BASIC in 8x1 attribute mode?[/QUOTE]
Easiest ... bytes of machine code to set the 8 attribute bytes per character ... want all characters in a row to have the same colour per ... -
A List Of Zx Spectrum Music EditorsWell, not for me actually, as 99,99% of them are for AY, covox and GS cards but several times some people asked about music editors for ZX Spectrum. …
... change it length up to 256 rows). Each row can contain note ... sound chip. First three columns of pattern editor are position ... (.... and ..). After those three columns you can see another three ... columns with --- .... .... (one for each ... -
Jetpac questionHi all, I just bought a copy of Jetpac off of Ebay and I'm having problems. To start, I'm trying to play it on an issue 2 Speccy with Interface 1, 2 …
... character in 'A'
; at ROW=D,COLUMN=E
;
to start of ATTRIBUTE file
ADD HL ... A,(QP_ATTR) ; Gett attribute byte and write it to screen
LD ...
;Change this to change attribute in use
QP_ATTR DB ... -
How does the Speccy deal with the Character Set?Hi All, Can anyone spare a little time to explain to me the basic Assembly method of how the Speccy interprets and retrieves Characters to print on …
... to the screen address of the top row ... working code, hoping the columns stay intact :
... ;fetch the character to print
;---------------------------------------------------------------
row down)
... -
A BASIC compiler projectHi, I started my own BASIC compiler for the ZX Spectrum (and Z80 machines) 3 months ago. It's still in ALPHA stage (when it is mature, I will write …
... the UDG, type \a \b ... to get de UDG "A", "B ... square).
The inline attribute codes are also allowed:
Row program (Spanish only version by ... I recall correctly).
To compare the speed, you can ... -
A BASIC compiler projectHi, I started my own BASIC compiler for the ZX Spectrum (and Z80 machines) 3 months ago. It's still in ALPHA stage (when it is mature, I will write …
... UDG, type \a \b ... to get de UDG "A", "B ... br />
The inline attribute codes are also allowed:
Row program (Spanish only version ... recall correctly).
To compare the speed, you can ...
The 4 in a row game is nice, and it ... -
Maze Mania - How did they do it?Hi, I was looking at the game "Maze Mania" by Hewson Consultants, written in 1989. The game can be downloaded from here [URL]http://www.worldofspec…
... LD SP,table_of_source_and_dest_addresses ; Point SP to our table of source and ... Contents of (HL) to (DE) 28 times (28 columns)
LDI< ...
DEC A ; Move to next row
JR NZ,line_loop ; repeat ... /> 2. Copy Masked Sprites to BackBuffer
3. Copy ... -
Maze Mania - How did they do it?Hi, I was looking at the game "Maze Mania" by Hewson Consultants, written in 1989. The game can be downloaded from here [URL]http://www.worldofspec…
... br />
Right, time to be more realistic then :D ... * 250 = 72000 to copy the 28 Columns by 144 lines ( ... about 28bytes x 2 per row = 56 bytes * 144 = ... bytes)
The code to copy super fast (8064 bytes ... So the trade off is to use the earlier code ... -
Brand new River Raid remake?one of my friend is trying to make a riverraid remake on flash just to have fun, I checked zx spectrum port of river raid. it is bad, really bad, jer…
... the green and the roads to fullscreen width. Although this ... times when most of your attribute copying gets done. So ... to actually do full screen width attribute re-writing. Others might refer to ... in the active columns, so your aeroplane would have to be one ... -
Rainbow Generator for 48K Spectrum using PUSHThis is what I came up with from [B]gasman[/B]'s suggestions. It's stable in ZXSpin and ZX32 simulating a 48K Speccy. Anyone like to try it on the …
...
attr_p equ 0x5c8d ; permanent attribute
; -----------------------------------------------------------------------------
; ... /> ex de, hl ; character attribute address to DE
; ... Macro for 8 lines per row
ld sp, ... -
River Raid Tech DemoJust a little something to look at. Enjoy. [URL="http://www.joefish.co.uk/speccy/Joefish_River_Raid_Tech_Demo_01.tap"]Joefish_River_Raid_Tech_Demo_…
... a lot of work to design to those requirements, and ... system that only wrote to every other attribute each line. With ... a separate attribute on each 1x8 pixel row, so I ... that all it seems to do to increase the difficulty ... space I want to put it to use, like the ... -
The So What's This Buzzsaw All About Then? Thread.Erm. This: [URL="http://www.joefish.co.uk/speccy/Joefish_Buzzsaw_Demo_1.tap"]http://www.joefish.co.uk/speccy/Joefish_Buzzsaw_Demo_1.tap[/URL] Keys…
... 's definitely the attribute for the next row being drawn too early ... in one mode then changes to another machine, is there? Are ... -
The So What's This Buzzsaw All About Then? Thread.Erm. This: [URL="http://www.joefish.co.uk/speccy/Joefish_Buzzsaw_Demo_1.tap"]http://www.joefish.co.uk/speccy/Joefish_Buzzsaw_Demo_1.tap[/URL] Keys…
... 's definitely the attribute for the next row being drawn too early ... in one mode then changes to another machine, is there? Are ... -
Has any programmers recently pushed the spectrum to the limits?Hi there. Ive just discovered this great forum and I was brought up with the speccy 16,48 and then 128k. Im just wanting to know if there are any re…
... technique (storing attributes as code) to develop my own version of ... ]
I got 14 columns. Each 8-pixel line has ... Portman using the first technique to dither the original image. This ... greedy algorithm, to find the best aproximation for each row of 8 ... -
New BUZZSAW+ Demo, No.2OK everybody, here's the latest demo of [I]Buzzsaw[/I]. This includes the title screen I wrote in Corfu with control selection, some new sprites and…
... of thing you have to do to squeeze out more performance ... able to get away with having a limited number of attribute ... patterns (e.g. four different ones per row). You ... four pairs eleven times to the screen. To change the colours, you ... -
QL "monitor mode" on TVI remember of a small Superbasic program allowing to emulate dual screen (monitor mode) on a TV too, without losing columns at the margins. I'm not s…
... (red ink on white paper to the left, white ink on ... red paper to the right, green ink on ... print 39 columns per row in both output channels, 80 columns in the ... -
New BUZZSAW+ Demo, No.2OK everybody, here's the latest demo of [I]Buzzsaw[/I]. This includes the title screen I wrote in Corfu with control selection, some new sprites and…
... space for the rainbow attribute buffer. However, they' ... and the attribute buffer (12K) to enable it to draw sprites ... address for each pixel row is taken from a ... pixel row takes too long, and using loops to save ... why I tried to keep the attribute tables in fast ... -
New BUZZSAW+ Demo, No.2OK everybody, here's the latest demo of [I]Buzzsaw[/I]. This includes the title screen I wrote in Corfu with control selection, some new sprites and…
... that the table is in columns and I place the ... inside it to POP the target addresses off for each row of ... cells in the hopper want to animate without slowing the ... And if I'm going to do a shoot-em-up ... with this technique, it needs to run even faster.
... -
New BUZZSAW+ Demo, No.2OK everybody, here's the latest demo of [I]Buzzsaw[/I]. This includes the title screen I wrote in Corfu with control selection, some new sprites and…
... that the table is in columns and I place the ... it to POP the target addresses off for each row of ... cells in the hopper want to animate without slowing the ... />
i dont want to play smart - it is your ... saw
the rest have to be animated but i think ... -
Test ROM Cartridge For SaleI'm selling another load of gear including a Sinclair Research Test ROM Cartridge. [url]http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=4000772…
... fail in rows or columns then it is likely ... This has been known to cause Spectrums to crash.
... brighter colours, usually from green to white.
5. ... tone.,
similar to the leader on Saved ... This is equivalent to reading the ‘top row of key. Check ... -
Micro Men - BBC4 Thursday 8th Octobereh... thats it... There was a new add for Micro Men on BBC 4 last night after 'The Cell' ( nice speccy goodness in there, including Jet Set Willy ) …
... (the former being able to show 80 columns of text, the latter ... on the TV between each row of characters that are missed ... you change the background colour to something that's not black ... always seemed a bit useless to me. If I wanted a ... -
More colours II (Was: Most popular new features?)The suggested 4xCLUT multi-colour solution never took off.
... attribute space?[/QUOTE]
The ULA is timed to ... from the attribute area. If you want to do another ... Your ULA would have to be able to run 50% faster ... address is called the row and the second half ... bytes by presenting the row part and then reading ...
