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Machine code issue...Hi Folks, My trials with MCODE continue and I am stuck. I wrote the following program in BASIC to simply POKE an attribute byte in to a "box" on th…
... you are working with a buffer or somesuch.
ld h ... done. HL=Address.
push HL ; save address
LD ... ,DE ; move 32 down
PUSH HL ; save it again
emulatorsplease help can we see clearly which emulator emaulates which hardware is there any that has a pc function key for the mulitface nmi button and the +…
... copy the 20kb video fram buffer from ram into the actual ... video frame buffer - did it have a blitter ...
LD SP,screen_address
PUSH HL[/code][/QUOTE]Games in machine codeHi everyone, How do go about doing multiple shots like a machine gun, do you have to store every x and y position of each bullet? When you kill som…
... br />
; ***DIRECT FRAME BUFFER ACCESS***
; Record ... br />
; ***DIRECT FRAME BUFFER ACCESS***
; Software ... : push eax
fld qword [ebp+hermite_y1] ; Cycle buffer
Games in machine codeHi everyone, How do go about doing multiple shots like a machine gun, do you have to store every x and y position of each bullet? When you kill som…
... CPU's TLB (translation lookaside buffer, a cache of 64 page ... entries) for candidate pages to push out to paging space (the ...Push/Pop data copyingWe all know that stack pointer cheese and push/pop is faster to move data than LDIR - which in turn is slower than unrolled LDI's anyway. I rewrote …
... using the hidden screen to buffer it all so I don ... :
LD BC,nnnn
PUSH BC
At the expense ...SE Basic Type-ins^Pete suggested creating a sticky thread for SE Basic discussion. I thought a Type-ins thread might also be useful. Up to the mods if they want to ma…
... , as pointed out below, no buffer is required.
[code]
copy_1:
push hl
push bc
call copy_line ...50Hurts - Full-screen 50Hz 1-pixel scrolling on a 128K Speccy50Hurts - Full-screen 50Hz 1-pixel horizontal scrolling on a 128K Speccy. Graphics are an obvious nod to Joffa, whose games and banter were a big ins…
... wrap-around buffer. This Speccy scroll copies sequences of PUSH statements from ...50Hurts - Full-screen 50Hz 1-pixel scrolling on a 128K Speccy50Hurts - Full-screen 50Hz 1-pixel horizontal scrolling on a 128K Speccy. Graphics are an obvious nod to Joffa, whose games and banter were a big ins…
... ]Assuming the ld hl, NN ; push hl method, the first pass ... of self-copying wrap-around buffer (where you only re-write ...Time difference for jumps and calls?Just interested (and possibly trying to distract myself from the more pressing problems in my sprite routine) and willing to risk a potentially daft …
... will be set to some buffer and RETs will be reading ... /> Just don't do any PUSH and POPs in your 'very ...Your Views on... GhostbustersI dusted off the Master System version of this and inspired me to try out the Speccy version. It's a good game with it's strong and weak points. I …
... />
Ghostbusters uses a back-buffer to draw the graphics and ... up by using LDI or PUSH/POP. To fit in the ...Your Views on... GhostbustersI dusted off the Master System version of this and inspired me to try out the Speccy version. It's a good game with it's strong and weak points. I …
... />
Ghostbusters uses a back-buffer to draw the graphics and ... up by using LDI or PUSH/POP. To fit in the ...A Pointless Propotional Font demoSomething I've made the last couple of days, which is probably completely pointless, but might be a bit amusing. It's also not worthy of posting thi…
... fact):
[CODE]PUSH 3
VERB
PUSH 2
NOUN ...
AND
PUSH 17
AVAI
AND ...
IF
PUSH 25
MESS
PUSH 12
GOTO ... ; it also has a wrapping buffer, which means that you can ...Arkanoid Hack - Your Sinclair Smash TipsRemember that Arkanoid hack in YS Smash Tips that didn't work? It does now... [CODE] 10 REM ARKANOID HACK 20 CLEAR 65535: LET C=1: LET D=23295 …
... br /> ;
dcrloop push bc ; preserve decryption loop counter ... ld b,$00
push bc ; preserve decrypter length< ... br /> push hl ; preserve decrypter address
buffer
ret
;
Screen routinesHello. For my games I?m using the sprites routine method of a screen buffer and when I finish to print all the sprites I dump all the buffer in the …
... a row of data and PUSH it all to write to ... Hz.
The dirty buffer, where you only re-draw ...Screen routinesHello. For my games I?m using the sprites routine method of a screen buffer and when I finish to print all the sprites I dump all the buffer in the …
... a row of data and PUSH it all to write to ... Hz.
The dirty buffer, where you only re-draw ...Screen routinesHello. For my games I?m using the sprites routine method of a screen buffer and when I finish to print all the sprites I dump all the buffer in the …
... /> I calculated once that using PUSH/POP you can go down ... fast, try to draw in buffer fast, because here you can ...Pixelwise scrolling sideways - how many ways to do it?Not that I need to, but I've been wondering if there's a good way to do this that I haven't considered. Scrolling [B]pixelwise [/B]vertically is "ea…
... could use a wrap-around buffer and just fill in the ... then prepare a PUSH loop with the various PUSH statements (up to ...z88dk sticky?I've just tried to PM Alcoholics Anonymous and couldn't because "Alcoholics Anonymous has exceeded their stored private messages quota and cannot acc…
... PUTC (put character), PUTS (put buffer), GETC, OPEN, CLOS, etc. ...
* a selectable push or pull model for keyboards ... . Push corresponds to interrupt driven ... libsrc/stdio_new/buf/slbb0/"]edit buffer[/URL] for the editing ...z88dk sticky?I've just tried to PM Alcoholics Anonymous and couldn't because "Alcoholics Anonymous has exceeded their stored private messages quota and cannot acc…
... flash (too much trouble, basically). Push-model keyboard handling is what ... it's just a circular buffer that sometimes magically gets characters ...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…
... instruction to move the screen buffer from memory to where you ... which use the stack. Using PUSH to write into the screen ... contention), LDI takes 16, and PUSH writes two bytes in just ...Pixelwise scrolling sideways - how many ways to do it?Not that I need to, but I've been wondering if there's a good way to do this that I haven't considered. Scrolling [B]pixelwise [/B]vertically is "ea…
... buffer. If you have a few tiles and can use POP/PUSH ...Pixelwise scrolling sideways - how many ways to do it?Not that I need to, but I've been wondering if there's a good way to do this that I haven't considered. Scrolling [B]pixelwise [/B]vertically is "ea…
... buffer. If you have a few tiles and can use POP/PUSH ... lines below are done using PUSH since they're just a ... parallax is also drawn using PUSH but only scrolled every other ...Pixelwise scrolling sideways - how many ways to do it?Not that I need to, but I've been wondering if there's a good way to do this that I haven't considered. Scrolling [B]pixelwise [/B]vertically is "ea…
... . upper part is cleared by PUSH, dont remember how scroll was ... ) and background was copied from buffer (bottom part).Exilei\'m sure this has been brought up before but couldn't find a thread in 'New Game Ideas'. Why did the Spectrum never get a port of the BBC game Exile…
... afternoon.
Scrolling a buffer vertically and horizontally using unrolled ... to screen using the POP/PUSH method can be done in ...Exilei\'m sure this has been brought up before but couldn't find a thread in 'New Game Ideas'. Why did the Spectrum never get a port of the BBC game Exile…
... afternoon.
Scrolling a buffer vertically and horizontally using unrolled ... to screen using the POP/PUSH method can be done in ...Exilei\'m sure this has been brought up before but couldn't find a thread in 'New Game Ideas'. Why did the Spectrum never get a port of the BBC game Exile…
... afternoon.
Scrolling a buffer vertically and horizontally using unrolled ... to screen using the POP/PUSH method can be done in ...Byte-order backbufferThis is a tool for Z80 coders who wish the Spectrum screen had a serial layout. It runs as an interrupt mode 2 service routine and uses POP and PUSH …
... serial (or byte order) buffer at 57484 to the Spectrum ... pointer
push bc
push de
push hl
... push af
push bc
push de
push hl
push ix
push ...
push hl
push de
push bc
push 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 …
... 16 byte row to the buffer
ldi
ldi< ... br /> ldi
ldi
push bc
ld bc,16 ... ;move 16 bytes from the buffer to the screen
ldi ... br /> ldi
ldi
push bc
ex de,hl ... hl ;put hl back to buffer, de back to screem
Screen routinesHello. For my games I?m using the sprites routine method of a screen buffer and when I finish to print all the sprites I dump all the buffer in the …
... start address higher in the buffer each time to give ... reach the top of the buffer. At which point we ... drawing it, when the buffer draw reaches the bottom it ... ld b,7
slp2 push bc
call sprite
slp push de
ld a,(de ...Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …
... integer
; de = char *buffer
; carry = write leading ... marker
push bc
push bc
...
scf
push af ; digit onto stack ... br />
push hl
push bc
call malloc ...
