... by timing the move between screen refreshes and ensuring that each ... do this from BASIC but with use of the HALT statement ... control both these aspects in machine code.

You can use ...

... mean the program could only print character codes as background graphics ... both would reduce the full screen update array requirements from 7680 ... />
4. Taking care with writing code that will compile compactly. This ...

... mean the program could only print character codes as background ... I've got some ugly code there with some "times 3", and ... [QUOTE]4. Taking care with writing code that will compile compactly. This ... sword, an extra sprite on screen, another animated monster or ...

... it, I think I started with a .TAP file containing ... BASIC loader just runs the machine code:
[code]
10 CLEAR 24575 ... 24576
[/code]
And the machine-code loader it runs then ... /> ld hl,5800h ;Clear primary screen & attributes
ld ...

... command? Could you do this with multiple .bins and load ... />
.S for SCREEN$
.B for Machine Code
.U for UDGs ... /> LOAD "TEST.U" CODE ...
SAVE !"TEST.U" CODE ...

... />
LOAD !"TEST.U" CODE ...

Hope this helps ...

... br /> 3. select machine (resets the emulated machine which is required to ... I get a mostly blank screen with a black border and some ... 1.0a produces a blank screen with a white border and ... with a line number ? :)

[code]SAVE "DISK" LINE 0[/code]

... really need an interrupt-driven machine code routine to alternate the displayed ... sit somewhere in-between. Someone with a 128 will know the ... all. You can get away with the odd pixel flickering here ... as a (not really)-interlaced screen on an ordinary TV, but ...

... really need an interrupt-driven machine code routine to alternate the displayed ... need to page the alternate screen into high memory to be ... sit somewhere in-between. Someone with a 128 will know the ... on doing ghastly inappropriate things with it...

... main difference (and with the similar-sized screen the only difference) ... actual tracks on the mainboard with the same result. You ... much easier to do in machine code than in BASIC)
... machine work, work well, and cheaply. Software issues can be dealt with ...

... much easier to do in machine code than in BASIC)[/QUOTE]
with such routine :D
... could have been MUCH better WITH them.

[QUOTE ... when someone said that spectrum screen LOOKS unnecessarily cryptic and complicated ...

... mastered and moved on to machine code, and best of all, ... people who owned different machines, with games like Manic Miner, ... when someone said that spectrum screen LOOKS unnecessarily cryptic and ... in binary, and are familiar with the necessary maths, then ...

... and moved on to machine code, and best of all ... who owned different machines, with games like Manic Miner ... screen display was too flawed)[/QUOTE]
But with ... , and are familiar with the necessary maths, ... [i]should[/i] the screen layout be?[/QUOTE]
...

... various reasons, including a lower screen resolution and lower texture details, plus ... not for economy or with such low hardware limitations ... games require a higher spec machine. But on the flipside, ... resolution shot from HL2 with settins fairly similar to ...

... various reasons, including a lower screen resolution and lower texture details, plus there ... PC game writer would disagree with you there, and feel slightly ... that he's not writing code as tight as a console ...

... /ZX_BASIC:Lines.bas[/url]
[code]
5 REM From the ... : INK 7: CLS: REM turn screen blank
20 LET x1 ... : [b]END IF[/b]
[/code]
Notice the "End IF ... the ROM BASIC and use machine code (with USR) to do the hard ...

... % Basic or Basic with some machine code, load code blocks and then use ... one single block of machine code, you could use this ... with the appropriate address)
20 poke 23739,111 : load""screen ... $
30 load""code : poke 23739,244 ...

... and comming out the shop with a nicked version of Octagon ... (which compiled the listing into machine code and all without the need ... colours on the screen.

1990 - Swapping tapes with a friend ... my Amiga disks for use with WinUAE which was a mamouth ...

... sprite at coordinates x,y with w witdh and h height ... four parameters would be specified with POKEs from Basic. I know ... a machine code routine which can turn an are of the screen into ... to display an image in machine code.

Thanks. :)[/QUOTE]

... program. I'll check the code to learn from it.
screen :) For the solution, my approach ... programmer do): I first print all the screen with white paper on white ... the attributes, it looked like screen is drawn very fast. (Then ...

... block - 20 bytes

machine code block - 998 bytes

PRINT USR command is needed to ... well as the PRINT USR command.

Your code runs from ... part of the code with in your case LOAD ""CODE the second header ...

... at the top of the screen(!).

Then I thought ... past to pass parameters to machine code, following the examples in Toni ... s$(), but I got nowhere with that.

Then ( ... realised that instead of working with the DEFADD space assigned by ...

... quickly without needing to use machine code. It doesn't handle string ... the technique as described above with fixed names as needed ... br /> copies top 1/3rd screen to bottom
44 REM ... [/code]

Now I need someone to come up with another ...

... my posting [thread=30618]"storing machine code in BASIC"[/thread] from last ... to scroll down the whole screen with wrap for a full rotation ...

... screen & program as one file which can be restored with LOAD "" CODE ... : SAVE !"screen"SCREEN$ :
CLEAR stkend+300: GO SUB 20: PRINT ramtop: PAUSE ... 0:
LOAD !"screen"SCREEN$ : POKE chans ...

... 's still all done with BASIC.

[code]
2 DEF ... ,o)
=CHR$ (65+o+((CODE a$-1-o) AND a ...

... now!). Is dealing with filesystem left up to ... it will theoretically work with any application that uses ... replace any ROM routines with routines running on ... If someone calls the "print character" routine, it'll ... or from a game in machine code. That's the idea ...

... was turned on (technically the lower 2 bytes of FRAMES are ... , if you use an emulator with "auto-load" activated, the computer ... developers: when starting the emulator with a TAP or TZX file ... . For instance:

[CODE]10 PRINT "Press any key to start ...

... want is to transfer my machine code (CODE program) raw binary to ... works OK with the following Spectrum code:

[CODE]1000 ... Load or Save code
1030 SAVE *"b"SCREEN$ [COLOR="Red"]- ... course, replace the SCREEN$ bit with whatever CODE x,y that you ...