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Drawing LinesHas anyone got any experience of coding a Bresenham line drawing algorithm on the Speccy? I've had a go and I find the algorithm has quite a few s…
... E,A ; Save radius
CP 35
JR NC,DBCDOBRES ... /> JP CRGRE1
; Use slow ROM routine circle routine
; for ... br /> AND A
JP M,DBCDNEG ; if d < 0 ... 22E5
CALL PIXADD ; $22AA ROM Routine
LD B,A ... -
this code wont give me a random starfieldim using a peice of code that ive copied from a book, ignore most of it as it is redundant. for some reason i get a strange random starfield instead …
... .
Anyway, because I'm so nice (and it might ... ; Get Ycoord ;v v ;
cp 175
jr nc,again ... it within first 8k of ROM.
ld h,a
this code wont give me a random starfieldim using a peice of code that ive copied from a book, ignore most of it as it is redundant. for some reason i get a strange random starfield instead …
... .
Anyway, because I'm so nice (and it might ... ; Get Ycoord ;v v ;
cp 175
jr nc,again ... it within first 8k of ROM.
ld h,a
Pseudocode for CIRCLE algorithm?Can anyone provide me with the pseudocode for the Spectrum's CIRCLE algorithm? My machine code knowledge isn't up to reading the ROM routine. I'm try…
... ,A ; Save radius
CP 35
JR NC,DBCDOBRES ... JP CRGRE1
; Use slow ROM routine circle routine
; for ... br /> AND A
JP M,DBCDNEG ; if d < ... as per The Complete Spectrum ROM Disassembly (p201) http://www. ...How to disable the "scroll?" message?Hello. I'm a beginner Z80 assembly programmer and I decided to make a ZX Spectrum game to practice my skills and gain some more experience. I curr…
...
setchan equ 0x1601 ; ROM openchannel routine
ld hl ... bit_7 PAPER 9
;rom routines , not used
;plot ... ld a,(hl)
cp 0xFF
ret z< ... on the compiler I'm using and be Spectrum ...Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... copyright symbol in the ROM font but is ` ... trickier, so I'm probably not going to ... backtick (or (C) with ROM font)
BRK EQU #18 ... tabledone
.notpressingcaps
cp 64
jr c, .noshift ... jp z, .handleESC
cp CAPSLOCK
jp z, ...Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... ; backtick (or (C) with ROM font)
MACRO ... .tabledone
.notpressingcaps
cp 64
jr c, .noshift ... jp z, .handleCURLEFT
cp CURSOR_RIGHT
jp z, . ... jp z, .handleCURUP
cp CURSOR_DOWN
jp z, . ...Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... #7F ; backtick (or (C) with ROM font)
; data type ... br /> jp z, .handleCURLEFT
cp CURSOR_RIGHT
jp z, .handleCURRIGHT ... #D6, #D6, #C6, #C6, #00 ; M
db #C6, #E6, #F6 ... #FE, #D6, #D6, #C6, #00 ; m
db #00, #00, #7C ...Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... #7F ; backtick (or (C) with ROM font)
; String/ ... /> jp z, .handleCURLEFT
cp CURSOR_RIGHT
jp z, .handleCURRIGHT ... #D6, #D6, #C6, #C6, #00 ; M
db #C6, #E6, #F6 ... #FE, #D6, #D6, #C6, #00 ; m
db #00, #00, #7C ...Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... 7F ; backtick (or (C) with ROM font)
; escape ... .tabledone
.notpressingcaps
cp 64
jr c, .noshift ... jp z, .handleCURLEFT
cp CURSOR_RIGHT
jp z, . ... jp z, .handleCURUP
cp CURSOR_DOWN
jp z, . ...Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... ; backtick (or (C) with ROM font)
; escape ... jp z, clr_pixels_homecursor
cp HOME
jp z, ... carriage_return_cursor
cp HORZ_TAB
jp z, ... horizontal_tab_pow2
.doneskipcheck
cp CR
jr z, . ...Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... 7F ; backtick (or (C) with ROM font)
; escape ... .errorcharliteralbadlength
.checkfordblquote
cp '"'
jr nz, .notquote
M
db #C6, #E6, #F6 ... #D6, #D6, #C6, #00 ; m
db #00, #00, #7C ...Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... #7F ; backtick (or (C) with ROM font)
; escape ... /> jp z, carriage_return_cursor
cp HORZ_TAB
jp z, horizontal_tab_pow2 ... D6, #D6, #C6, #C6, #00 ; M
db #C6, #E6, #F6 ... FE, #D6, #D6, #C6, #00 ; m
db #00, #00, #7C ...Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... #7F ; backtick (or (C) with ROM font)
; escape ... /> jp z, carriage_return_cursor
cp HORZ_TAB
jp z, horizontal_tab_pow2 ... D6, #D6, #C6, #C6, #00 ; M
db #C6, #E6, #F6 ... FE, #D6, #D6, #C6, #00 ; m
db #00, #00, #7C ...Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... #7F ; backtick (or (C) with ROM font)
; escape ... /> jp z, carriage_return_cursor
cp HORZ_TAB
jp z, horizontal_tab_pow2 ... D6, #D6, #C6, #C6, #00 ; M
db #C6, #E6, #F6 ... FE, #D6, #D6, #C6, #00 ; m
db #00, #00, #7C ...Console frameworkStill working on Specotron, but at the point where working out the diagonal lines collision is not good at beer o'clock. In the meantime I've knoc…
... #7F ; backtick (or (C) with ROM font)
; escape ... /> jp z, carriage_return_cursor
cp HORZ_TAB
jp z, horizontal_tab_pow2 ... D6, #D6, #C6, #C6, #00 ; M
db #C6, #E6, #F6 ... FE, #D6, #D6, #C6, #00 ; m
db #00, #00, #7C ...I`m Looking For A Game....Can anybody help me I`m looking of a game.... I think it was a text-adventure based on a film with Medusa in it That`s All I Can Remember....... Ple…
Can anybody help me I`m looking of a game....
I think it was a text-adventure based on a film with Medusa in it
That`s All I Can Remember.......
Please......IF1 and IO portsThe Interface used 3 Z80 IO ports to communicate to it s devices #E7- Microdrive data #EF- Status and control #F7- RS232/Network What I'm looking…
... /Network
What I'm looking for is the DETAILS ... of the version 2 ROM, So far I'm upto 0FAC and ... is doing.
When I'm done any body want a ...Emulators and ROM'sHi - This is my first post here, although I have been visiting WoS for ages.... I have been on quite a few multi-platform sites that offer downloads …
... good collection of emulators and ROM's that they would be ...Character set variableCan anybody help me? I'm trying to find out where the pointer to the ascii character set is. I remember that if you wanted to change the font on the …
... anybody help me?
I'm trying to find out where ... the default font in the rom.
Does anybody know where ...SPIN Public Beta 0.1b Available for downloadHi all, back again, and as just recently announced on CSS, SPIN has been updated. Here's the post to CSS (or the relevant parts): It's been a bu…
... power icon, thanks Neuro, (I'm not sure about it
ROM, but not much else.
ROM cartridgeI forgot, I'm also after a cardridge to fit into my RAM Turbo interface, mainly to see if it works really. An ultimate one would be nice, but would …
I forgot, I'm also after a cardridge to fit into my RAM Turbo interface, mainly to see if it works really. An ultimate one would be nice, but would consider anything that works, Horace & the Spiders or whatever. Again, not desparate to pay a fortune!Magicland Dizzy - I'm stuck!I had a look for a walk through guide but can't find one. I'm stuck. I've put the leaf and apple in the cauldron but can't get fire to light it with…
... find one.
I'm stuck. I've put the ... had a go and I'm well and truley stuck! Cheers ...
