-
Works in Fuse & SpecEmu, not ZXSpinI decided that I wanted to change the scroll routine which I was using for compiling the Trailblazer maps, as I'd just copied it out of Andrew Hewson…
... screen, which is twice as fast as the other one, even ... af
dec a
jp nz,SCROLL1
dec ix ... ,af'
dec a
jp nz,SCROLL0
pop iy ... -
Contended Memory woes...Hello All, An iccle problem I have and was hoping one of you fine WoSers could bail me out again... :) I've noticed that my emulator is running sli…
... emulator is running slightly too fast, for every 75 frames I ... amount from the look up table using the t-state as ... index.
My contended table is correct.
My t ... -
Fast Z80Todays Spectrums are fast as hell and few software utilises this. Z80 in ReVerSE runs at 42 MHz, in Speccy2010 at 28 MHz, in Pentagon 2.666 and in N…
Todays Spectrums are fast as hell and few software ... />
Two options:
1. Fast Z80 on the mainboard. Plusses ... than second option.
2. Fast Z80 in NeoGS card, invisible ... -
Rotronics Wafadrive v.1.80 ROM - Corrupt or purposely broken?I've been digging around the Wafadrive v1.80 ROM (from [URL="http://zxspectrum.it.omegahg.com/_RO.htm"]here[/URL]) and can't decide if the ROM is cor…
... $0cf7 ; address the hook-code table!? WTF?
add hl, de ... , e
pop de
jp (hl)
;; hook-code ... $13
;; hook-code-table
;
l_0d2d: defw $0c30 ... /> l_0d63: ld hl, ($5ce3)
jp (hl)
;
[/CODE]
z88dk and im2I set up a minimal IM2 mode so I can draw sprites for a laff [code] #include <string.h> #include <stdio.h> #include <im2.h> #include <stdlib.h> #in…
... // initialize 257-byte im2 vector table with all 0xd4 bytes
CP 0
JP NZ,writeagain
#endasm
CP 0
JP NZ,writeagain
org ... 200 ; high byte of pointer table location.
ld i,a ...Border Tron vector tableI've been trying to use the Border Tron border creator, but the vector table is created where code to my game is at (FE00 I think), how would I go ab…
I've been trying to use the Border Tron border creator, but the vector table is created where code to my game is at (FE00 I think), how would I go about relocating the vector table to say 30000 as I don't understand hex very well!hash function permutation tableI'm using a simple Pearson hash function to generate keys for a $(103,6) array using a 256-byte permutation table. How do I arrange the entries in th…
... using a 256-byte permutation table. How do I arrange the ... entries in the permutation table to avoid any collisions? As ... all the data table entries are known in advance ...Math Quiz - MultiplicationThe topic is fast multiplication routines, from 8x8 to 32x32 and all points in between. These functions sit underneath floating point libraries, gen…
The topic is fast multiplication routines, from 8x8 to ... there's interest in being fast but not to the point ... h
dec h
jp z, l_mulu_16_8x8
l0_mulu_24_16x8 ...Scrolling Bi-Colour Engine for 4-Player GamesJust putting this code up for people to have a look at. Far from finished. Should simply compile and run a bit of a demo. Only good for 128K and +…
... libraries.
;Use interrupt table at 48640 (190*256) ... instructions to throw interrupts
jp never_end
< ...
dec a
jp nz,draw_char_frame_loop
jp print_char_hl_de ;draw character
...JP (HL) confusionokay.... JP nn will jump to memory address nn. JP (HL) ,I assumed would read the contents of memory address HL and jump to the location and be a gre…
... to memory address nn.
JP (HL) ,I assumed would ... using a list of CP...JP nn
or ... br /> LD HL,jumptable
JP (HL) ; read/peek the contents ... what instructions do.
JP nn means PC=nn
JP (HL) means PC=nn
JP (IX) means ...Best or most unusual high score tableReading the recent post about jet pac and the initials in the high score table got me wondering about the best or most unusual effect used to display…
... initials in the high score table got me wondering about the ...Unusual custom turbo loaders - with sourcesI have always been fascinated by turbo loaders; my games all feature a TZX version with one of such schemes implemented, and I have been experimentin…
... , the Biturbo loading scheme is fast and very reliable, since it ...
LD B,208
JP NC,65459
LD A ...
LD B, 208
JP NC, 65459
LD A ...Question to all of you ex-patsBefore the question, I must mention a few things... I left Portugal in 1995 when I was 17. Was young and foolish and left before finishing High Scho…
... my life and had kids. Fast forward to October 2006. Decided ... promoted, bringing more to the table...
On day I ...Why are rotozoomers on C=64 so fast ?Hi, I noticed rotozoomers on C64 are really fast. I'm not the best coder on Speccy but I know my pet I never succeed to do rotozoomer (or rotating ch…
... rotozoomers on C64 are really fast. I'm not the best ... which is even simpler) so fast in similar resolution.
Hooky - hook ZX ROM and rewire RST and NMI to RAM - rantThis is a rather long rant. Not for short tempered. :) The objective is to hook into RST "vectors" and NMI on a Spectrum without affecting the normal…
... this:
0x0028 JP 0x335B
0x002B RST 0x38 ... /> code with our "create vector table" code?
When ... ,#0xFFFF ; DE=0xffff
0x0005 JP 0x11CB
...
0x11CB ... end jump to the original jp location.
--- INTERFACE ...analysing program variable usageIf I wanted to count the number of times each variable is referenced while a program is running (not the number of times each variable is referenced …
... LOOK_VARS to update a counting table, but how could I do ... HL,[true (VARS)], CALL (not JP) $2900 V_EACH. If it still ...Slow/fast games - change speedSome ZX games are too slow or too fast. Problem with speed is aslo in russian ZX games or thanks to different memory layout on zx128 and +2a models. …
... are too slow or too fast. Problem with speed is aslo ...For Sales: Crash Tech Tape, SuperCopier & Fast SaveThree utility tapes for Sinclair Spectrum, includes: 1) Crash Tech Tape (not currently in WoS archive). [url]http://www.worldofspectrum.org/infoseek…
Fast Condition TestingHello my friends, I have been writing some input and string handling routines in BASIC lately - yeah I could write them super fast in C/ASM via z88d…
... I could write them super fast in C/ASM via z88dk ...Feature comparison chart for Spectrum emulators? (And general EMU suggestion)Is there a chart or table which summarizes the main features of known Spectrum emulators? I think this would be very useful to have. In my case I am…
Is there a chart or table which summarizes the main features ... some reason it runs too fast. If you know an emulator ...Spectrum Games from Japan, some high quality titlesHey guys, I have to sell off some of my Spectrum games and other pieces. Everything is located in Japan, but shipping is not as bad as you might thin…
... years. I've posted a table of postage prices.
jp/ If you really want you ...Mirror tableCan anyone help with a byte mirror table? e.g. so you can look up a byte of a left-facing sprite and return the correct right-facing value. There …
... help with a byte mirror table? e.g. so you can ... its mirrored value from the table using the H/L register ... 's got a byte mirror table to hand, please point me ...Pool players?Last week I beat the no.1 seeded player in my local premier league singles knockout. I'm currently ranked bottom of the premier league because I hav…
... I broke, I cleared the table,
If I win ... -clothed every month and very fast. Balls nice and glossy, very ...Fast load of multiload games on real hardware?I was wondering if there was a hardware device that could allow fast loading of multi-load games for real hardware? I noticed a good many of the b…
I was wondering if there was a hardware device that could allow fast loading of multi-load games for real hardware?
I noticed a good many of the best 128 games are multiload and I'm quite impatient and I don't have a +3!Mastering flagsI'm little lost when different flags are set/reset after logic operations, and what conditions must be met. For example, [code] ld a, MODE…
... , MODE
xor (hl)
jp p, xxx
[/code]
Maybe some table with essentials and comments, like ...Searching for the perfect Spectrum emulator (Android)I'm searching for the best Spectrum emulator to run on my GPD XD, which runs Android. I've got several thousand TZXs on a flash card (I own all the o…
... a ZX81 on a wobbly table. The game browser is rotten ... . I can't get the "fast forward" option to work reliably ...Code optimisation! 16bit number to 5 digit stringJust for interest this one, any thoughts on how to make this as fast as possible? Little optimisations to this routine or a complete reimagining? …
... how to make this as fast as possible? Little optimisations to ... b ;overclocked beyond 9?
jp c,cont
ld (hl ... digit
dec l
jp lp
cont: ld l ... ,d
or e
jp nz,lp
ret
Interupt service routinehas anyone set up a interupt service routing with pasmo? this one I tried resets the speccy EDIt- I placed the code after the END directive, I fi…
... ,254 ; high byte of pointer table location.
ld i,a ... ,#255
cp 0
JP NZ,Labelif2
ld a ... /> Labelif2
cp 0
JP Z,Labelif3
ld a ... (hl),a
Labelif3
jp INFINITELOOPLABEL1
org 51400
