-
More colours II (Was: Most popular new features?)The suggested 4xCLUT multi-colour solution never took off.
... 3 there. Then you will scroll and find your sprites.
8. Use triangle shaped arrows to shift bytes left or right
byte 0".
10. You may ... -
Please test my Manic Miner remake!Thanks to everyone who downloaded my sneak preview of Manic Miner Turbo. Thanks especially to na_th_an who is the only person so far to give feedback…
... ;425649]Can you make it scroll? In a frame?[/QUOTE]
right & left table for that ... memory by using a 256 byte mirror table (or generating one ... lots of the spites have 8 frames which are basically just ... -
Mr Do! ?Not exactly a new idea (at least twenty-seven years old now :-o), but how about a port of Mr Do! to the Spectrum? There was never an official one, ev…
... screen will still need to scroll vertically. This requires a buffer ... one M-cycle (the single-byte ones, with register operands) take ... / 48K Spectrum is 128T (16*8 ) contended, 96T (24*4) ... in various stages of development right now, including this one, with ... -
Mr Do! ?Not exactly a new idea (at least twenty-seven years old now :-o), but how about a port of Mr Do! to the Spectrum? There was never an official one, ev…
... screen will still need to scroll vertically. This requires a buffer ... one M-cycle (the single-byte ones, with register operands) take ... / 48K Spectrum is 128T (16*8 ) contended, 96T (24*4) ... in various stages of development right now, including this one, ... -
The Programmers Development System (PDS)Hi everybody, I recall this system has been mentioned several times on WoS forums. Last time was, I think, when those sources from Maz Spork (Buggy …
... As an example, the first byte of work RAM for the ... playfields are generated from the 8 x 8 pixel characters stored in ... the top/bottom/left or right of the playfield rather than ... />
full_scroll
shadow_off
scroll 64,64
screen_on
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…
... DISCTRL.
Name Bit Byte Size Description
- 0 ~ 31 ... format ARGB1555
Bit Byte Size Description
0 ~ 3 ... Description
0 ~ 8 9 BIT vertical scroll position.
9 ~ 31 ... left.
JPADR 3 Pad right.
JPADA 4 Button A ...LCD interfacingHas anybody interfaced [url=http://mdfs.net/Info/Comp/LCD]an LCD[/url] to a Spectrum? I'm toying with putting together an interface, a small 32x8 dis…
...
LD A,(HL) ; get byte
OUT (WRDATA),A ; chr ...
LD A,(HL) ; get byte
OUT (WRINST),A ; out ... :
DB 30h ; initialisation byte (set 8 bit I/F)
DB ... /> DB 06h ; set no scroll, cursor shifts right.
MESSAGE:
Flip Screen vs ScrollingWhich do you prefer? I've always liked flip screen games but I had a C64(spit) owning friend who hated them with a passion.
... want to scroll something left or right by anything less than 8 pixels ... , you have to fetch the graphic data one byte ... instead of having to precisely scroll it. You copy each ... background pattern that moves left/right like a repeated animation. ...Need to scroll one column using m.c.I've used many of the available routines to scroll the entire screen in any direction, but I'm not being able to find one that would allow me to scro…
... d,h ; calculate address one byte left of HL, column -1 ... /> put_defattr:
ld (hl),4*8 ; put default attribute
next_address ... see, you maybe want to scroll whole screen, not only one ... you want to scroll attributes only, am i right? if it is ...Tutorial - learn machine code in 30mins[B][I]Message from the moderators[/I] - bigjon has requested that readers' attention be drawn to a better version of this tutorial, one which is easi…
... car
;scroll road
;random road left or right
;jump ... meets will be an instruction byte.
It does something ... its work using 7 temporary byte-sized addresses called 'registers'.
8 pixels per byte.
Try POKE-ing ...Add horizontal hardware scroll to ULA+In this case we must read a bit in the ULA+ for test if supported. And the future software that uses it must have to branch: 1. If hardware scroll i…
... works by making the left, right, and bottom most characters of ... entirely) whilst the vertical hardware scroll pulls the upper and lower ... front buffer with a one byte offset works and there's ... Atari 8-bit hardware does things; when the horizontal smooth scroll is ...SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…
... br />
; THE 'SCROLL?" MESSAGE
org 0x3235
rr e ; right
djnz t_shift ... points to byte after fifth byte
dec ... exponent (up to 8 bits)
Demo of multidirectional scroll 50fpsHello!!! Im working with scrolls, and I want to show you a demo of a posible game. It works at 50fps and can manage about 7 sprites in the screen w…
... four different combinations as things scroll horizontally: grass -> more ... can shift left and right by a byte (8 pixels). That means that ... they're only 8 pixels wide plus one scroll step (i. ... Miner Willy animates, they scroll sideways within a 16x16 block ...Demo of multidirectional scroll 50fpsHello!!! Im working with scrolls, and I want to show you a demo of a posible game. It works at 50fps and can manage about 7 sprites in the screen w…
... four different combinations as things scroll horizontally: grass -> more ... can shift left and right by a byte (8 pixels). That means that ... they're only 8 pixels wide plus one scroll step (i. ... Miner Willy animates, they scroll sideways within a 16x16 block ...New Game(s): Sir Ababol 2 and Sir Ababol DXHere is our own Christmas Present from Mojonia! We weren't going to release these games (at least, by the moment) but we decided just yesterday to fi…
... the key detection routines (which, right now, are as simple as ... :-)
[CODE]number_of_keys equ 8
define_keys
ld ix ... ,c
rdlp1 rlc b ;scroll through all ports
in ... /> keyports ;stored as port then byte to mask
;e.g ...40 Column Printing RoutineI've written a 40 column printing routine, which I'd like to share... It's my first piece of 'public' code so go easy on me! I don't think it is a…
... register and align them to byte. I then transfer them ... two times right to get it to byte boundary (bit 8). The ... times left or right to the byte boundary of 8 or 16. ... you need to clip last byte). This is not really ... need a scroll function. Here's a scroll up for ...RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…
... left and right nibble
8, 2015 - Created ... #define FCB .BYTE
#define ... />
;**************************************************
;* scroll
;**************************************************
;* scrolls ...Function with push and popIm trying to see if I understand push and pop when it comes to using to pass parameters to functions: [code] LD HL,16384 LD A,5 Push AF Ld A…
... or as extra 16-bit / 8-bit registers.
[ ... (hl) ; or spr graph rotated right
ld (SP1V_PIXELBUFFER+0),a ... repeated eight times for the 8 pixel rows in a char ... of queue marked with 0x80 byte
189
190 ; ...How would you approach parallax?So ... there is this trick by Joffa that we all know...of waiting for the ULA to reach certain pattern on the screen using the IN command. And then s…
... opposed to your 23 per byte? Unless I'm missing ... like to introduce on the right and calling
RL ... (char rows...1 row=8 scan lines)0-4...clouds ... parts. For parallax you scroll bottom part three times for ... . Replace prepared bytes after 8 RLs with next column. ...How would you approach parallax?So ... there is this trick by Joffa that we all know...of waiting for the ULA to reach certain pattern on the screen using the IN command. And then s…
... to the screen on the right in low nibble of A ... s a fast, 4 pixel scroll of one scan line, ... I'll be able to scroll game area 4 pixels left ... />
[code]
;; initially high byte on top of stack is ...
dec l ; next 8 bits, mask is already on ...Comp.Sys.Sinclair Crap Games Competition 2017As the creator of the second-least crap game in last year's competition (and the only mug stupid enough to agree to host it this year) I am proud/ash…
... 32 byte strip are used, to fill-in at the right- ... POKE just the first 8 bytes of the UDGs ... 30 REM Sinclair BASIC Attribute Scroll Mechanism
40 REM Example ...
100 REM Define 8 (of 32) strips of colour ... /> 210 INK 2: PAPER 8: BRIGHT 1
220 ...endless runner project..So I'm thinking of writing a small tutorial series on writing games for the speccy in C, and figured that an endless runner would be an easy example …
... how attached devices interpret byte sequences. It just sends ... history) or binary mode (8-bit). It's the ... stream that interprets the byte sequences, whether that is ... you want is to scroll the screen upward. You ... it is not working right. Compile line is at ...What to write / programme?I've been trying to get back some motivation to write something in machine code for the Spectrum. I don't feel I am organised enough to write somethi…
... screen? How to scroll the screen left and right? That kind of ... address of the left-most byte of each pixel line in ... /> LD A,D
SUB 8
LD D,A
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…
... implemented)
caps 5-8: cursors
caps 3 ... ld h, (hl) ; second byte of table
add d ... hl, hl ; HL = char * 8
add hl, de ; + ... cp 24
call z, scroll
ld (scr_out_row), a ...
rra ; rotate right including carry
jr ...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…
... h, (hl) ; second byte of table
add d ... hl, hl ; HL = char * 8
add hl, de ; + ... 24
call z, scroll
ld (scr_out_row), a ...
rra ; rotate right including carry
jr ... EQU $
kbd_buff BLOCK 8
key_rpt_timer db 0< ...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…
... h, (hl) ; second byte of table
add d ... 24
call z, scroll
ld (scr_out_row), a ... br /> rra ; rotate right including carry
jr ... EQU $
kbd_buff BLOCK 8
key_rpt_timer db 0 ...
char_buff BLOCK 8
input_buff BLOCK ...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…
... h, (hl) ; second byte of table
add d ... 24
call z, scroll
ld (scr_out_row), a ... br /> rra ; rotate right including carry
jr ... EQU $
kbd_buff BLOCK 8
key_rpt_timer db 0 ...
char_buff BLOCK 8
input_buff BLOCK ...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…
... h, (hl) ; second byte of table
add d ... hl, hl ; HL = char * 8
add hl, de ; + ... loop counter
ld b, 8
.loop
ld ... cp 24
call z, scroll
ld (scr_out_row), a ...
rra ; rotate right including carry
jr ...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…
...
ret c
jp scroll
carriage_return_cursor:
... /> ld h, (hl) ; second byte of table
add d ... add hl, hl ; HL = char * 8
add hl, de ; + FONTBASE ... flag
rra ; rotate right including carry
jr c ...
