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Arok demoparty (16-18 July, Hungary) seeking Speccy worksI've had a note from Balasz Oszvald, organiser of the [url=http://arok.intro.hu/]Arok demo party[/url] in Ajka, Hungary... this year's party is takin…
... party is taking place on 16-18th July, and while it ... -
Using the stack to copy memory blocksA [b]PUSH[/b] and a [b]POP[/b] instruction together take less time than two [b]LDI[/b], so long [b]POP/PUSH[/b] sequences are sometimes used to copy …
... /> rept 8
ldi ; 128 = 16*8
endm
jp ... any intrinsic benefit of using 16-bit registers. -
F-16 Fighting Falcon and Soviet Fighter MiG 29These games clearly share some common graphics: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0001706[/url] [url]http://www.worldofspectrum.o…
... did the graphics for F-16. Can this also be Neil ... -
Fuse for Mac OS X 1.0.0 ReleasedA new version of Fuse for Mac OS X has been released at the dedicated sourceforge project and shortly here on WoS: [url]http://sourceforge.net/proje…
... for Pentagon 1024SL v2.2 16 colour mode (Fredrick Meunier).
registers to snapshots (Patrik Rak).
Strange DivIDE ScreenI've just got an SD card adaptor for my DivIDE and it does something strange. On startup, I can see the DivIDE logo and it registers the adaptor, bu…
... the DivIDE logo and it registers the adaptor, but the normally ... in and formatted to FAT-16. I initially tried it with ...F-16 Fighting FalconThis shares the same title music as Pro PowerBoat Simulator (though on a lower pitch) which Paul Hiley is credited for. Do we therefore give Hiley a…
This shares the same title music as Pro PowerBoat Simulator (though on a lower pitch) which Paul Hiley is credited for. Do we therefore give Hiley a credit for F-16 as well?Push/Pop data copyingWe all know that stack pointer cheese and push/pop is faster to move data than LDIR - which in turn is slower than unrolled LDI's anyway. I rewrote …
... it to two cycles of 16 bytes passed over each time ... />
I suppose going to 16 bytes a throw might work ... worth the hassle of pushing registers to the 8 register pair ...Sega 16 ForumAnybody else a member of Sega 16 Forums as it has beeen hacked again ,this must be twice in a month-i am not sure if its impossible to keep hackers o…
... else a member of Sega 16 Forums as it has beeen ...Tile based graphics and scrolling thingy...Here's my best attempt so far at a tile based rendering and scrolling routine. It draws in 22 8*8 graphics tiles along the top of the screen (junk i…
... /> draw_tile ld hl,(position_var) ; (16)
draw_tile_bytes ld ... /> scroll_down push hl ; Preserve registers
push de
... br /> ldi ; Using LDI, 16 ticks per byte * 22 = ... ) ; Restore SP & registers then return
SU Issue 27:G8 16 (odd link?)[URL="http://www.worldofspectrum.org/infoseek.cgi?regexp=^SU+issue+127%3a+Great+Eight+16$&pub=^Sinclair+User$&loadpics=3"]SU issue 127: Great Eight 1…
... +issue+127%3a+Great+Eight+16$&pub=^Sinclair+User$& ... "]SU issue 127: Great Eight 16[/URL]
I notice ...What 80's games inspired the 8/16-bit sequence in Atlantis SquarePantis (the movie) ?So, I just caught a glimpse of SpongeBob SquarePants (the Atlantis SquarePantis movie with David Bowie, [B][I]NOT[/I] the game based on the movie[/B]…
Amazonia (BUGFIX)This is a bugfix for game [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0027280"]Amazonia[/URL], please add the following "known errors" des…
... key
a4bc c7 rst 00h ; reset computer[/CODE]< ... 'CRISTAL'?
b4eb: 1f 16 EXIT DONT_HAVE OBJ(22) ; otherwise ... 'CRISTAL'?
b4eb: 1f 16 EXIT DONT_HAVE OBJ(22) ; otherwise ...Shadow registers.I assume it's faster to transfer the registers to the shadow registers rather than using the stack? Let's say that I want to temporarily preserve the…
... faster to transfer the registers to the shadow registers rather than using ...Byte-order backbufferThis is a tool for Z80 coders who wish the Spectrum screen had a serial layout. It runs as an interrupt mode 2 service routine and uses POP and PUSH …
... /> push af ; save the registers
ld a, 0x3b ; ... ix, attributes + 768 - 16 - (attr * 16)
; last byte of ... /> ld ix, bitmap + 6144 - 16 - (line * 16) - (cell * 32) - (row ... /> ld iy, 16384 + 6144 - (line * 16) - (cell * 256) - (row * 32 ...40 Column Printing RoutineI've written a 40 column printing routine, which I'd like to share... It's my first piece of 'public' code so go easy on me! I don't think it is a…
... /> foundzero
pop af ; restore registers
pop bc
pop ... ,56
defb 0,124,16,16,16,16,16,16
defb 0,68,68 ... ,16,16,32,16,16,24
defb 0,16,16,16,16,16,16,16
defb 0,48,16,16,8,
uglifruit
August 2012
Development
calculator and sinusok, look at the Sysel's routine: [PHP]3 5b00 *s 4 5b00 tabsin = #7000 03 mksin 19.11.1995 Busy soft …
... #2d28;
12 800c ef rst #28 Vypocet 127.5*(1 ... 04 db #04 krat
16 8014 1f db #1f sin ...Machine code RST10 problemHello! After 27 years of playing with Spectrums I'm starting to look into doing assembly language properly. All went swimmingly well until I wrote …
... is designed to print 16-character messages at a ... 10 ; messages are always 16 characters long
ex ... load character into A
rst $10 ; print it
.msgctl defb $16,$13,$08,$11,$08,$10 ... loading characters, and calling RST 10, but nothing appears ...Febuary offer - 4164 ram chips: 10pcs ?9, 20pcs ?16Special febuary offer: [B]10x 4164 chips[/B]: normally 12 GBP, now for [B]only 9 GBP (11 EUR)[/B] + postage. [B]20x 4164 chips[/B]: normally 24 GBP…
... GBP, now for [B]only 16 GBP (19 EUR)[/B] + postage ...Announcing MetroSpec: ZX Spectrum 16/48K Emulator for Windows Phone 7 / 8Hi All, I'm the author of MetroSpec, a ZX Spectrum 16/48K emulator for Windows Phone 7 / 8. MetroSpec V1.3 was actually launched in September 2012, …
... of MetroSpec, a ZX Spectrum 16/48K emulator for Windows Phone ...A quick newbish questionI'm reading through 'mastering machine code on your spectrum',as kindly posted by Mr bert on this forum. Correct me if I'm wrong from what i read,bu…
... what i read,but single registers ie B,C,D,E ... .
As i am aware 16 to the power of 2 ...The Spectrum Show Episode 16The Spectrum Show Episode 16 In this episode we go back to June 1984 and get all the latest Sinclair news and top selling Spectrum games. We look b…
The Spectrum Show Episode 16
In this episode ...Graphic/music prog (16 pictures, 16 songs)"YERZMYEY's SLIDESHOW" by HOOY-PROGRAM A slideshow for ZX Spectrum 16K with AY-interface. Released in 01.06.2013 (the Children's Day in PL ;) ). DOW…
... .
It contains 16 pictures and also 16 different songs (one song ...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…
... /> ld a,$16
rst $10
xor a
rst $10
xor a
rst $10
ld bc,10< ...Hardware description - DivIDE interface[B][U]DIVIDE interface / DivIDE 2k11[/U][/B] [B][U]The main description[/U][/B] DIVIDE is IDE interface with own external memory. Thanks to very goo…
... ]#0[/B] (power-on/reset/rst 0)
[B]#8[/B ... ] (rst 8 / errors)
[B]#38[/ ...
#B7(183) LBA 16-23 LBA 16-23
#BB(187 ...Can a guy that traveled on the short bus learn machine code...Hmmm So after some soul searching I figured it was time to finaly nail spectrum machine code. Its so frustrating to sit infront of a basic listing w…
... br /> 60 POKE X,16*Y+Z
... operations...
Paired registers
[code]
registers..
[ ... /> 0E = LD C,
16 = LD D,
1E ... my transfering the registers values to themselves ...New game: Krunel[IMG]http://www.speccy.pl/images/news/krunel_00.png[/IMG] Game name: Krunel Type: logical Author/group: [url]speccy.pl[/url] Platform: ZX Spectrum …
... can select one of the 16 different tiles sets. During the ... />
As all chip's registers are write-only there is ...Nasty 'Gotcha' for multicolour timingI thought I would be better developing my multicolour routine on the 48K first, being the slowest, so it would then be sure to work on the 128K varia…
... twice again but with other registers. This is to lay down ... only 13 cycles (extended to 16 by contention). But then I ... POP Hl to refill those registers with new data) before the ...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…
... br /> #asm
rst 56
#endasm< ... /> push af ; preserve registers.
push bc
push ix
rst 56
registers.
pop de< ...
