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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…
... text printing routine that used RST 16, with the ASCII code in ...
ldi ; Using LDI, 16 ticks per byte * 22 = 352 ... -
Newbie says 'Alreet?'Hiya dudes, Just dropping a line to say hello as i've decided at 33 to try and fulfill a long time ambition to write a speccy game in machine code..…
... wrote my first game using RST 16 and udgs, so I'd ... -
Up/Down Left/Right scrollCan anybody give a newbie some pointer to simple one char scrolling by pixel? I've looked at a lot of resources, but as you can imagine, it's all a …
... afraid! I managed to use RST 16 quite well, but as you ... -
Up/Down Left/Right scrollCan anybody give a newbie some pointer to simple one char scrolling by pixel? I've looked at a lot of resources, but as you can imagine, it's all a …
... afraid! I managed to use RST 16 quite well, but as you ... .
[/QUOTE]
Well RST 16 hides all the details from ... got the same impression using RST 16. The spectrum is purely a ... -
Auto generated spritesLooking around for some graphics I came across [url]http://blog.disktree.net/?p=19[/url] , one of several such pages. Need the odd 8x8 UDG or two (…
... need to make this a 16 bit no of course
rst 16
ld a,2
rst 16
xor a
rst 16
add a,48
rst 16
ld a,(23560)
Multi-sized character screen driverFollowing on from the thread on [url=http://www.worldofspectrum.org/forums/showthread.php?t=24618&page=14]character output routines[/url], I've dug o…
... than the in built Spectrum RST 16 routine, not having to do ... and all the other bits RST 16 may do. I was most ... it was slightly slower than RST 16! (Unfortunately, I no longer have ...Multi-sized character screen driverFollowing on from the thread on [url=http://www.worldofspectrum.org/forums/showthread.php?t=24618&page=14]character output routines[/url], I've dug o…
... than the in built Spectrum RST 16 routine, not having to do ... and all the other bits RST 16 may do. I was most ... it was slightly slower than RST 16! (Unfortunately, I no longer have ... to make it faster than RST 16. There's a challenge if ...Multi-sized character screen driverFollowing on from the thread on [url=http://www.worldofspectrum.org/forums/showthread.php?t=24618&page=14]character output routines[/url], I've dug o…
... it was slightly slower than RST 16![/QUOTE]Can you remember how ...PRINT a numerical value i.e. the scoreHow do you fo about printing a numerical value using the print routine in the ROM? For instance I have a value 0-255 and want to PRINT the result at…
... a,22 ;ROM 'at'
rst 16 ;rom routine deals with contents ... ;after 22 is row...
rst 16 ;rom routine deals with contents ... ;...after row is column
rst 16 ;rom routine deals with contents ... !
call times100 ;multiply 16 bit number at bc x ...PRINT a numerical value i.e. the scoreHow do you fo about printing a numerical value using the print routine in the ROM? For instance I have a value 0-255 and want to PRINT the result at…
... rst 16
ld a,7 ;white paper
rst 16
ld a,16 ... ;ink control
rst 16
... ld a,1 ;blue ink
rst 16 ... control functions that can be rst 16'd. If you've ...PRINT a numerical value i.e. the scoreHow do you fo about printing a numerical value using the print routine in the ROM? For instance I have a value 0-255 and want to PRINT the result at…
[QUOTE=daveysludge;647353]Using R-Tapes routine, how do I pin the two '0's to the end of the printed number?[/QUOTE]
[CODE]
ld a,'0'
rst 16
ld a,'0'
rst 16[/CODE]PRINT a numerical value i.e. the scoreHow do you fo about printing a numerical value using the print routine in the ROM? For instance I have a value 0-255 and want to PRINT the result at…
The colour controls 16 and 17 still work with ... be refreshed (as ub880d) as rst 16 doesn't preserve the contents ...PRINT a numerical value i.e. the scoreHow do you fo about printing a numerical value using the print routine in the ROM? For instance I have a value 0-255 and want to PRINT the result at…
... /> rst 16
ld a,1
rst 16
ld a,7
rst 16 ... /> ld a,16
rst 16
ld a,6
rst 16 ; yellow ink ...Help needed...I am at my wits end with this pigs ear of a routine, can anyone simplify it and make it work as it should? Basically it should make the characters '…
... /> ld a,21 ;OVER
rst 16
ld a,1 ;...is ... switched on
rst 16
call print_string ;PRINT ON ... /> rst 16
ld a,(ycor)
rst 16
ld a,(xcor)
rst 16 ...UDG in AssemblyHello there my fellow WoS'ers I am currently having a play with z88dk and PASMO and would like to have some fun with some UDG's so is there a tutor…
... to your udg then use RST 16 to print chr$ 144 to ...
Ld a,144
Rst 16
Ret
Using RST 16 and udg flickerHi there! I'm using UDGs and RST 16 to make a simple canyon bomber game. I've got the game mechanics working ( finally ) but now I'd like to make …
... /> I'm using UDGs and RST 16 to make a simple canyon ... out?
But using RST 16 you shouldn't get any ... moves, ie only rst 16 an empty space (or RST OVER) the old ... active sprite positions (when using RST 16).Newbie says 'Alreet?'Hiya dudes, Just dropping a line to say hello as i've decided at 33 to try and fulfill a long time ambition to write a speccy game in machine code..…
... means I can eliminate all RST 16 nonsense from my game! (sort ... $07 ;okay got this
16 ret nz
17
RANDOMIZE USRI always thought that this particular basic command was not intuitive! If I understand correctly is means run the code from the memory address, is t…
... to the upper screen with RST 16
RANDOMIZE USR will print ... to lower screen with RST 16
LLIST USR will print ... to the printer with RST 16
(although in your code ... can alter the stream from RST 16 as well)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…
... ROM routines (mostly at address 16/$0010). Try the following code ... /> [CODE]LD A,99
RST 16
RET[/CODE]Printing textThis is probably quite a basic question, or there might be something obvious I'm missing. I'm looking for an economical way of printing formatted te…
... /> jr next_char
print_char:
rst 16
next_char:
inc hl ... :
defb 22,1,20,16,1,17,7,19,1 ...16k programmingHi all, If I want to code something for a 16k (or any spectrum) my understanding was that if I CLEAR below 24064 and put all the code above it up to…
... be ok. My demo used RST 16 but no other ROM calls ... can start coding.
RST 16 will be fine/ just bear ... always follow it e.g. RST 16 / DEFB 'A' / ...more code here ...16k programmingHi all, If I want to code something for a 16k (or any spectrum) my understanding was that if I CLEAR below 24064 and put all the code above it up to…
[QUOTE=BloodBaz;697580]RST 16 will be fine/ just bear ... always follow it e.g. RST 16 / DEFB 'A' / ...more code here ... the A register before calling RST 16.16k programmingHi all, If I want to code something for a 16k (or any spectrum) my understanding was that if I CLEAR below 24064 and put all the code above it up to…
[QUOTE=The_Bert;697617]This is not quite correct, you have to preload the character code into the A register before calling RST 16.[/QUOTE]
He's probably thinking of RST 8.Colour whilst PLOTing in MCI am using the ROM PLOT routine at $22E5, how do I control the colour of the results, so I can preferably use INK 8, it seems to have a mind of its o…
... controlcode with the RST #10 printroutine.
16 INK
17 ...
LD A,6
RST 16
will set
Redefine keys routineHow would I go about making a memory efficient redefine keys routine? I only want to define up, down, left and right and reserve key 'H' for pause.…
... ,#12
rst 16
ld a,b
rst 16
ret ... rst 16
ld a,b
rst 16
ld a,c
rst 16 ...
ld a,17
rst 16 ...
ld a,e
rst 16 ...Clearing 22 lines of the screenHow do I go about clearing the top 22 lines of the screen and leave the bottom #0 area untouched? I have a routine to reset the attributes, but cant…
... that I'm surprised the RST 16 routine isn't quick enough ...
