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Codies help? Werewolves of LondonHi All, never one for shying away from the deep end, having only just dipped my toe in to the world of machine code I find myself trying to find out …
... /> I agree with Dunny, sort of :) Code in the ROM ... /> RST are fast single-byte calls. The fact they are ... RST instructions are one byte which means the logic ...
If the 257 byte table doesn't contain identical ... not having a 257 byte table would cause many ... -
I just did something very out of characterI was downstairs when i heard something come through the letterbox. It was a newsletter from the BNP as soon as i saw what it was i opened the door a…
... live in a country where priority is given to minority groups ... /> 3) outlaw "positive discrimination". What sort of cretin believes that the ... -
MINIGAME COMPO 2006[url="http://www.ffd2.com/minigame/"]http://www.ffd2.com/minigame/[/url] it could be nice to meet you there :)
... start of the line, 1 byte for the end, six additional ... 's a "works for me" sort of solution, and probably a ... -
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…
... this can be done using SevenUP and merging the grfx into ... is stored as the high byte of the grfx address for ... tile, now just the high byte is needed.
Thanks ... -
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…
... source file created by SevenuP v1.20
; SevenuP (C) Copyright 2002 ... /> ;Char Size: ( 2, 3)
;Sort Priorities: Mask, Char line, Y ... -
Getting attribute location from a screen coordinates (x,y)I am having trouble figuring out how to convert an x,y coordinate pair (pointing to a specific pixel) to the location of the attribute for the block …
... do but this is the sort of thing must have been ... the pixel position within a byte. 0=leftmost pixel position (bit ... -
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…
... background tile to an 8-byte pixel buffer and a 1 ... -byte attribute buffer. Then each sprite ... sprites following it (of higher priority and therefore sitting on top ... = 1 for 2-byte graphical definition else 1-byte, bits 2:0 ... -
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…
... first five sprites are higher priority then the last five, the ... occurs depends on the rflag byte. Allowable flags are:
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…
... -byte pixel buffer. By using an occluding sprite at highest priority ... -only occluding sprite of highest priority that is the "mirror" ... occluding sprite is of highest priority, sprites and background appear ... the sprite is 1-byte or 2-byte, "height" and "width" ...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…
... up to now.
SevenuP and TG both only generate ... *8*(1 if 1-byte, 2 if 2-byte)". In the create ...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…
... table, heap, stack and queue. Byte- and word-circular buffer will ... /> A heap (sometimes called a priority queue) is an array whose ...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…
... in the correct format using SevenuP. So discussion about this program ... returns a standard joystick status byte that indicates which directions/fire ... asserted. The standard joystick status byte is returned by all 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…
... the left side and 2-byte, indicating the graphics are composed ... returns the standrard joystick status byte that is stored in 'i ... /> [/LIST]
[B]Using SevenuP to Generate Graphics for SP1 ...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…
[QUOTE=48K]1/ Random number generator: I've started using a ld a,r command to grab a number from the memory refresh counter. Only problem is that if I do this in quick succession, the numbers are obviously not very random at all.
[/quote]
Biotoxins redumping projectI've been spending quite a bit of time between dumping STP / MIA titles at looking at the titles flagged by Biotoxin as possibly needing a redump... …
[QUOTE=Mikie][...]
BYTE symbol flags
bits b0b1:< ... at that point) and some sort of Mikie's behaviour should ...In Machine Code, what is the quickest way to sort bytes?I am playing around with some ordering of sprites, where I want to order them by vertical position. I used some Rodnay Zaks code to order some bytes…
... much bytes you want to sort... for small number of ... or 20) simple bubble sort might be OK. For ... sort at all... I'd just reserve one N-byte long, 256-byte ... /> ld l,a ; A = byte
ld (hl),a
byte array, skipping 0s or ...The New SPIN releases ThreadOk, as I'm now working on SPIN again full-time, and as a very wise man once said, "Release Early, Release Often"[1]... I'm going to release new SPIN…
... Edit and actually got some sort
of dummy tones done ... 'none' for the CRC Randomize byte, would it correctly load disks ...+3e ROMs v1.28 releasedAfter a slight delay (ahem), I have updated the +3e ROMs to v1.28. Amongst other things, this release provides: [LIST] [*]Completely rewritten (and …
... work pending that has taken priority for now.
I ... indeed. I just have to sort out a decent 16bit IDE ...CLEAR does not RESTORE the DATA pointer??According to the Spectrum manual, one of the things that a CLEAR command does RESTORE the DATA pointer. Either it doesn't actually do this, or some…
... so that it does not sort alphabetically :-)
1) "SAVE ...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…
... has been some attempts to sort the Z80 vs 6502 argument ... , isn't that high a priority for me.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…
... PHA ; BY SAVING LOW BYTE ON STACK.
LDA ... br /> PLA ;PULL LOW BYTE FROM STACK
INY ... />
--------------------------------
;BUBBLE SORT
; PARAMETERS: NumberOfElements = number ...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…
... on your optimal bubble sort comparison) That would imply ... implementation of that bubble sort. Kiwi's implementation ... br />
2 sort LDY #$00 ;TURN EXCHANGE ... /> 4 PLA ;PULL LOW BYTE FROM STACK
2 ...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…
... at the beginning of the sort.
[/quote]
Well ... lie in the same 256-byte page. Are you not? (Better ...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…
... background once. Then you just sort the order of the sprites ... front of another based on priority and all appear over the ...What are people using TommyGun to do?So I was just wondering what people are using TommyGun to do?
... certainly not a priority for me right now (SevenuP does the job ...The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…
... .
Unless you have some sort of inside information as to ... -Christmas launch was probably a priority too.[/QUOTE]
Given the ...How are people developing?Are most coding on actual HW or under emulation, or cross developing?
... binary imports/exports
Graphics: Sevenup
Debugger: None
byte was painstakingly poked into RAM ...How are people developing?Are most coding on actual HW or under emulation, or cross developing?
... binary imports/exports
Graphics: Sevenup
Debugger: None
byte was painstakingly poked into RAM ...tips on optimizing assemblyI wrote a small routine to rotate right a whole screen character line complete with attributes. This is my third ever assembly routine, so I guess i…
... LDIR... but that's the sort of silly micro-optimisation that ... to worry about a 31-byte-counter. The LDD version I ...Wanted: z80 asm routines...for the Sam. This call goes out to Colin and others who know how it should be done. If you look on the Sam C disk you can see the implementation…
... to where you need (512 byte sectors, with 2 bytes at ... showing the next track/sector) - sort of mimicing READ AT in ...
