-
Pixel engines for explosions...Hi... Iv a strange request... I was toying around with an old YS program, which can be found here: [url]http://www.users.globalnet.co.uk/~jg27paw4/ty…
... /> JR L61534
L61555: POP IX
EI
RET ... E
EXX
POP DE
POP BC
RET
L61709 ... /> DEFS 172
SCR_TABLE: ; SCREEN ADDRESS TABLE NOW FOLLOWS IN ... -
Pixel engines for explosions...Hi... Iv a strange request... I was toying around with an old YS program, which can be found here: [url]http://www.users.globalnet.co.uk/~jg27paw4/ty…
... eb $0cts
l_f073: pop ix ; f073 dd e1 ... $04ts
pop de ; f10a d1 $0ats
pop bc ; f10b c1 ... 1a f1 $11ts
pop de ; f117 d1 $0ats ... e7 $0c/$07ts
pop de ; f152 d1 $0ats ... ts
;
; screen address table
;
... -
Requesting a little help to identify the purpose of this 'add-on' to my Issue 2Hi everyone First of all it's my first post here so please go easy on me! I'm grateful to be accepted into your fine little club :smile: I probabl…
... I had LOAD "" up on screen. Who needs a keyboard when ... reach address 65535
ld bc,0 ;0 means everythink OK ... hl ;put offeding address into BC
pop bc ;to be our USR ... -
Pixel engines for explosions...Hi... Iv a strange request... I was toying around with an old YS program, which can be found here: [url]http://www.users.globalnet.co.uk/~jg27paw4/ty…
... br /> JR L61534
L61555: POP IX
EI
RET ... E
EXX
POP DE
POP BC
RET
L61709 ... page boundary
SCR_TABLE: ; SCREEN ADDRESS TABLE NOW FOLLOWS IN ... -
tiny routine to shift RAMTOP & stackCompressing some data areas above RAMTOP and wanting to make the released space available for BASIC arrays, I needed to move RAMTOP without using CLE…
... t clear the screen either). I'm ... DEC BC ; 11
DEC BC ; 11
POP HL ... to new location
POP DE ; 209
... ;$1B76 STMT_RET
POP BC ; 193
LD ... -
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 …
... pop bc ; b = height of sprite in pixels
; hl = screen ... in characters
; hl' = screen address
; b' = pixel ... pixel row
; hl' = screen address
; b' = pixel ... br /> exx
pop hl ; restore screen address so that it ... -
Procrustean PrintingHere's a short routine to manage printing of text with command tokens, to avoid messing up the screen when they are expanded. It just prints as many …
... z,GETARG
call FPTOBC ;BC=address
ld h,b ...
push ix
pop bc
dec bc
ld a,c ... -
Procrustean PrintingHere's a short routine to manage printing of text with command tokens, to avoid messing up the screen when they are expanded. It just prints as many …
... z,GETARG
call FPTOBC ;BC=address
ld h,b ...
push ix
pop bc
dec bc
ld a,c ... -
Fairlight's use of LDIRYS, comparing Fairlight and Nightshade, said: [quote]Fairlight is much more interesting even though the techniques that Bo Jangeborg uses for screen…
... )
; last byte of the screen
ld hl, $ + 9 ; set ... /> pop iy
pop ix
pop hl
pop de
pop bc
pop af ... /> exx
pop hl
pop de
pop bc
pop af
Fairlight's use of LDIRYS, comparing Fairlight and Nightshade, said: [quote]Fairlight is much more interesting even though the techniques that Bo Jangeborg uses for screen…
... (STACK),SP ;DUMPS VIRTUAL SCREEN IN REAL SCREEN
LD SP,$E428 ... MOVE THE INFORMATION
LD BC,160*20 ;20 LINES * 20 ... ,$E900 ;START OF VIRTUAL SCREEN
VOLC2 POP DE
LDI
JP PE, VOLC2 ;IF BC REPEATS
LD SP ...Fairlight's use of LDIRYS, comparing Fairlight and Nightshade, said: [quote]Fairlight is much more interesting even though the techniques that Bo Jangeborg uses for screen…
... ]putting 2 bytes in the screen with LDI it takes 32 ... *20
pop af
pop bc
pop de
pop hl
ex ... /> pop af
pop bc
pop de
pop hl
pop ix
pop iy ...Fairlight's use of LDIRYS, comparing Fairlight and Nightshade, said: [quote]Fairlight is much more interesting even though the techniques that Bo Jangeborg uses for screen…
... HL,$E900 ;START OF VIRTUAL SCREEN
LD (STACK1),HL
POP IY
POP BC
POP DE
POP AF
POP IX
screen segment, if e.g h ... we are in the same screen segment
VOLFU EXX ...Fairlight's use of LDIRYS, comparing Fairlight and Nightshade, said: [quote]Fairlight is much more interesting even though the techniques that Bo Jangeborg uses for screen…
... /> pop hl
pop de
pop bc
exx
pop de
pop bc
pop hl
pop de
pop bc
exx
pop de
pop bc
screen. thats where you get real benefit from push/pop copy ...Willy Meets The BeatlesHere's the almost complete release of Willy Meets The Beatles, which you can download from [URL="http://www.sendspace.com/file/55ps31"]HERE![/URL] T…
... code.
The title screen tune lives at #F52A in ... bank 7; the title screen code copies it to #752A ... tune going for the title screen:
[code]
885d ... br /> 8868 c1 62 738 pop bc
8869 3e 10 63 ...Willy Meets The BeatlesHere's the almost complete release of Willy Meets The Beatles, which you can download from [URL="http://www.sendspace.com/file/55ps31"]HERE![/URL] T…
... code.
The title screen tune lives at #F52A in ... bank 7; the title screen code copies it to #752A ... tune going for the title screen:
[code]
885d ... br /> 8868 c1 62 738 pop bc
8869 3e 10 63 ...Routine for clearing screenI was looking for a 'nice' way of clearing a screen of graphics in Z80. After a ridiculous amount of time mucking around, this is the best and most …
... LD IX, IX_TABLE
LD BC, 64 * 256 + 192 ; ... byte of start of screen buffer; 192 used to ... ; Map DE to pixel in screen buffer (HL)
... add 16384 to point to screen buffer
LD A, ... br /> ; Bit positions within screen byte to set
. ...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…
... jp(hl)
pop bc
pop bc
pop bc
pop bc
pop bc ;; compiler may adjust ... /> strsep_callee:
pop hl
pop de
pop bc
push hl ... be customized for a different screen configuration or memory map.
Adventurers: Your Help NeededHi All, I'm embarking on a feat which I am going to regret. Basically I will need the help of a host of volunteers with a passion for those old cla…
... 6c66
DONEPIC:
pop ix
inc ix
pop ix
pop af
pop hl
pop de
pop bc< ... will stop after each screen has displayed so ... that part of the screen, just now it' ...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…
... can be sustained the full screen though. The variation doesn't ... ,0
pop hl
pop de
pop bc
pop af
ex ... /> pop iy
pop ix
pop hl
pop de
pop bc
pop af ...Store and restore attribute valuesI am needing ideas on how to write a machine code routine that will store/restore (more important to restore) attribute values to the 22528 area. I …
... need to PUSH/POP BC when you update the screen address, but can ...Store and restore attribute valuesI am needing ideas on how to write a machine code routine that will store/restore (more important to restore) attribute values to the 22528 area. I …
... need to PUSH/POP BC when you update the screen address, but can ...
