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A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…
... it would just need to HALT first to synchronize and ... : besides crediting ZXodus influence in BIFROST* ENGINE itself, my "license" ... proper credit is provided. Although BIFROST* ENGINE did not exactly ... him as co-author of BIFROST* ENGINE itself, instead of ... -
Multicolour demo using z88dk + BIFROST* (+source)This is just a demo to show how to show multicolour using z88dk, using the BIFROST* engine (more info [URL="http://www.worldofspectrum.org/forums/sho…
... multicolour using z88dk, using the BIFROST* engine (more info [URL ... /> Note3: Please read the original BIFROST* thread before using engine for ... /> [CODE]
/****************************************
BiFrost demo
08 March ... -
BIFROST* Advanced Programming - part 1In BIFROST*, it's much easier to just make changes in the tile map and let the engine automatically draw & animate everything in multicolor for you. …
...
[CODE]/* ----------------------------------------------------------------
* BIFROST* ENGINE HI-DEMO #1
#include "bifrost.h"
#define printMode ... attributes (no glitches since BIFROST* is still disabled)
BIFROST* Advanced Programming - part 2This second demo shows animated and moving tiles together, and also how to implement collision detection. This knowledge should be enough to implemen…
... [CODE]/* ----------------------------------------------------------------
* BIFROST* ENGINE HI-DEMO #2
BIFROST* is still disabled)< ... /> // frame sync
asm("halt");
}
...BIFROST* Advanced Programming - part 3This new demo demonstrates the BIFROST* built-in sprite support that I mentioned before. In BIFROST*, "sprite tiles" are 2 special tiles that BIFROS…
... , BIFROST_DISABLED);
// no glitches since BIFROST* is still disabled
BIFROST_fillTileAttrH ... ) {
// frame sync
asm("halt");
}
// erase and ...BIFROST* Advanced Programming - part 4In previous posts I demonstrated how to move multicolor tiles up and down smoothly by a single pixel, and sideways by an entire char (8 pixels). Thi…
... implementation:
[CODE]/* ----------------------------------------------------------------
* BIFROST* ENGINE HI-DEMO #4
// frame sync
asm("halt");
}
// erase tiles ...BIFROST* Advanced Programming - part 5In my [URL="http://www.worldofspectrum.org/forums/showthread.php?t=40437"]previous post[/URL] I demonstrated how to move multicolor images smoothly i…
... different situations:
[CODE]/* ----------------------------------------------------------------
* BIFROST* ENGINE HI-DEMO #5
// frame sync
asm("halt");
}
// erase player ...BIFROST* Advanced Programming - part 6The purpose of this demo is somewhat different from previous ones. Instead of teaching a new technique, the main goal here is to demonstrate how much…
... /> /* ----------------------------------------------------------------
* BIFROST* ENGINE HI-DEMO #6
asm("halt");
// ... // frame sync
asm("halt");
// erase ...BEEPER music compo 10-11 July on Di:Halt partyoh yeah! public pressure organizers [B]Di:Halt [/B]which will take place [B]July 10-11[/B], agreed to hold the [B]beeper music compo[/B]. The rules…
... ! public pressure organizers [B]Di:Halt [/B]which will take place ...28-character wide multicolour(ish) on 48k SpectrumLong-time lurker here... I've always been interested in rainbow effects on the 48k Spectrum, mainly from a perspective of "Just what [I]would [/I]ha…
... used in the ZXodus and BIFROST* engines.
This (and ... /> LD B,L
TSLP3 HALT ; Hang around, modifying the instructions ...Help wanted: BIFROST* 1.1 on real hardware?[URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0027405"]BIFROST* ENGINE[/URL]'s latest release 1.1 implements support for all standard Spectr…
... .org/infoseekid.cgi?id=0027405"]BIFROST* ENGINE[/URL]'s latest release ...BIFROST* ENGINE 1.2 released!Another improved version of the BIFROST* ENGINE is now available! Download it here: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0027405[/u…
Another improved version of the BIFROST* ENGINE is now available! Download ... use automated updates to let BIFROST* interrupts animate it automatically afterwards ... written for previous versions of BIFROST* will still work, except for ...Tutorial: ZX-Paintbrush and BIFROST*The latest version of [URL="http://www.zxmodules.de/"]ZX-Paintbrush[/URL] now supports editing multicolor tiles as used in [URL="http://www.worldofsp…
... .org/infoseekid.cgi?id=0027405"]BIFROST*[/URL], [URL="http://www. ... method to use it with BIFROST* in practice.
... your favorite emulator, load the BIFROST* demo, then select "save ... favorite emulator and, while the BIFROST* demo is running, select ...BIFROST* for graphic artists - part 1Using multicolor requires 2 very different skills: [I]programming[/I] and [I]graphic design[/I]. I already wrote several tutorials about the former …
... the former task (also BIFROST* [URL="http://www.worldofspectrum ... etc. As a bonus, BIFROST* supports animated multicolor images ( ... below) is controlled by BIFROST* and rendered in multicolor, ... get automatically animated again by BIFROST* afterwards. Even [URL=" ...Is there an SNA halt bug?Hello all, I noticed that some SNAs don't work on my emulator but they do work in almost everyone else's, SPUD fails with them too which is a tad sp…
... to get stuck on the halt instruction. I can't find ... with regard to SNA and halt, does anyone have the details ...BIFROST* example: "Knights & Demons DX" source codeA package containing the source files of our multicolor game "Knights & Demons DX" is now available for download [URL="http://www.mediafire.com/?hbch…
... ' show cursor
BIFROSTstart() ' enable BIFROST*[/CODE]
This is ... ' wait for key, then disable BIFROST*
GO TO 150 ' ...BIFROST* LogoDespite my lack of artistic talent, I decided to design a BIFROST logo, that could be used for either the currently available 18 columns multicolor e…
... 18 columns multicolor engine (called BIFROST*) or the upcoming 20 ... engine (to be called BIFROST? or BIFROST*20 probably). Here's ... but that's optional. The BIFROST* license only asks that games ... created with BIFROST* should mention it any ...BIFROST* for graphic artists - part 2: static tilesThis tutorial provides some guidelines for designing multicolor tiles. Before reading this text, it's strongly recommended that you (re-)read [URL="h…
... for other tasks. When using BIFROST*, you better take good ... .org/infoseekid.cgi?id=0027405"]BIFROST*[/URL] demo)[/I]
... .org/infoseekid.cgi?id=0027405"]BIFROST*[/URL] demo)[/I]
... .org/infoseekid.cgi?id=0027405"]BIFROST*[/URL] demo)[/I]
...How much does Bifrost improve graphics (test 192x192 graphics)Inspired by the BIFROST library I made several experiments with 8x1 graphics at 192x192 resolution. The results are now overwhelming but under certai…
Inspired by the BIFROST library I made several experiments ...Address bus contents (i.e. PC) during execution of HALTI'm wondering if anyone can tell me what's placed on the address bus during execution of HALT, beyond the initial M1 cycle. The Z80 user manual state…
... address bus during execution of HALT, beyond the initial M1 ... contains the following code for HALT:
[CODE] case ... the opcode fetch after a HALT could actually trigger paging ... of addresses well before the HALT operation finishes. While I ...Top Telly Tip... Halt and Catch FireThe series is set in the early 1980s and depicts a fictionalized insider's view of the personal computer revolution. The show's title refers to the f…
... the fictitious machine code instruction Halt and Catch Fire, which would ...HALT: Why always 4ts?Instruction breakdown of halt is like that: PC 4ts. That means it fetches instruction byte from ram which tooks 4 ts and then does nothing and read…
Instruction breakdown of halt is like that:
... or interrupt.
if halt is already read by cpu ... and again to execute the HALT, why it still takes 4 ... /> I mean if cpu executed HALT at cycle 5, and if ...New multicolor engine BIFROST*2[img]http://s15.postimg.org/rfue0jb3v/BIFROST2.png[/img] [b]BIFROST*2 ENGINE[/b] is now available! Download it here: https://www.dropbox.com/sh…
... ]
[b]BIFROST*2 ENGINE[/b] is now ... AAAknv_0PeJGhn36dLJZfGASa
[b]BIFROST*2 ENGINE[/b] supports animated ... org/infoseekid.cgi?id=0027405"]BIFROST* ENGINE[/url]), except ... .org/infoseekid.cgi?id=0027405"]BIFROST* ENGINE[/url].
"Decoding z80 Opcodes" (http://www.z80.info/decoding.htm#intro) - Incorrect HALT Opcode?Apologies if this is a dupe but I searched within the forums and couldn't find anything. I've been working on a z80 emulator (for academic and rec…
... seems to incorrectly specify a HALT opcode as 0x7[i]7 ...Which Emulator has a menu option to enable Interrupts (EI) if emulated Speccy hangs after DI / HALT?Which Emulator has a menu option / debugger option to enable Interrupts (EI) if emulated Speccy hangs after DI / HALT? I tried SpecEmu and Fuse, b…
Which Emulator has a menu option / debugger option to enable Interrupts (EI) if emulated Speccy hangs after DI / HALT?
I tried SpecEmu and Fuse, but I can not find a option for doing this in their debugger.A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…
... My test consisted of compiling BIFROST* demo using ZX BASIC. Actually ... TILES"CODE
40 LOAD "BIFROST*"CODE
50 RANDOMIZE NOT ... "putTile"), this could cause BIFROST* to miss a frame and ... However if you remember to HALT right before calling a subroutine ...A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…
... CODE]
/****************************************
BiFrost demo
08 March ... with the TILES and BIFROST data
found ... in the bifrost demo.
****************************************/
< ...Multicolour demo using z88dk + BIFROST* (+source)This is just a demo to show how to show multicolour using z88dk, using the BIFROST* engine (more info [URL="http://www.worldofspectrum.org/forums/sho…
... library interface for using the BIFROST* ENGINE with z88dk, that ... br /> [CODE]
/****************************************
BiFrost demo
28 March ... #include
#include
#include "bifrost.h"
#pragma output ...
