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Night ShiftAnyone interested in selling their original boxed copy of Night Shift, complete with all the original booklets? I would certainly be interested. Cor…
Anyone interested in selling their original boxed copy of Night Shift, complete with all the original booklets? I would certainly be interested.
Cordially,
Jamie -
Hawl, we're on the Night ShiftIs it just me, or is it impossible for Night Shift (LucusFilm Games) to load on a 128k machine? My original copy doesn't work and even trying the TZ…
... is it impossible for Night Shift (LucusFilm Games) to load on ... -
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…
... store it in col
xor a ; set a to ... ; return
err_b: xor a ; set a to zero ... nz ;
do_cr: xor a ; set A to zero ... ret
wrap: xor a ;
jr zend ;
rrca ; shift right
rrca ; four ... -
XOR - dodgy magazine referenceThe magazine reference section for Logotron's XOR has a link to a Spanish(?) magazine 'MicroHobby Especial'. All well and good, but the magazine arti…
The magazine reference section for Logotron's XOR has a link to a Spanish(?) magazine 'MicroHobby Especial'. All well and good, but the magazine article seems to about XORing bits, rather than moving chickens and fish around a maze. -
Murkwood / Red ShiftI have a tape (no inlay) called "Murkwood" by "Red Shift" 1984 I can't find it listed anywhere, and I wonder if it is an expansion pack for a game a…
... inlay) called "Murkwood" by "Red Shift" 1984
I can ... -
Kiwi OS for z80 computerHi everyone, Nearly made my z80 computer with 2K ROM 32K RAM. It has an OS im still writing called Kiwi (apple, blackberry, you get the idea ;D) he…
... CURRENT DATA VALUE)
XOR C ;XOR THE CURRENT VALUE (TOGGLE)
XOR C ;XOR THE CURRENT VALUE (TOGGLE)< ... CURRENT DATA VALUE)
XOR C ;XOR THE CURRENT VALUE (TOGGLE)< ... WITH BYTE
SRA A ;SHIFT A RIGHT (NEXT BIT TO ... -
AND,XOR,OR,BIT,RES,SET,CPL,NEG,RLC,RRC,SLA,SRL,RL, RR,SRA for BASICAs this was drifting away from the original INKEY$ thread I thought that I'd create a new one. So here's a routine to provide all of the above mentio…
... ,b"
;# values: AND=A, XOR=X, OR=O, BIT=B ... ^n)
inc b
xor a
scf
SETBIT ... ,a,b"
37 PRINT "XOR ";a;TAB 9;b,"=";USR ... -
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…
... used for 'newline'
xor a ; change here for tabbed ... /> ld (de),a
xor a
inc de
populatecoords ; sets shift amount, and actual coordinate for ... -
CAPS SHIFT on Spectrum+ ComputerI have just recently supplied a couple of replacement Spectrum+ keyboard membranes to a customer in Barby, Germany. Although something may have been…
... , the customer cannot get CAPS SHIFT n or m to give ... /> He has tried both CAPS SHIFT buttons.
I am ... other letters work with CAPS SHIFT - he has tried both membranes ... keys work fine with CAPS SHIFT.
Does anyone have ... -
Rally Shift Extreme kickstarterMy brother who started programming for the Spectrum now has a kickstarter for a rally game: [url]http://www.kickstarter.com/projects/694378857/rally-…
... .kickstarter.com/projects/694378857/rally-shift-extreme-racing-game-inspired-by ... -
Converting an integer arbitrary large binary number into a printable decimal formThis was asked a long ago at the comp.sys.sinclair newsgroup. At that time, I came up with a solution by extrapolating the classic algorithm of suces…
... needed is the ability to shift to the left, and adding ... a
ret z
xor a
PrintDigit ld b ... -
Math Quiz - MultiplicationThe topic is fast multiplication routines, from 8x8 to 32x32 and all points in between. These functions sit underneath floating point libraries, gen…
... l,e
xor a
ld d,a ... ret nc
xor a
ld l,a ... ret nc
xor a
ld l,a ... hl = E * H
; shift left eight bits
shift left, costing an additional ... -
reversing an LFSRWhat's the correct way of reversing an LFSR so that it produces the same numbers but in reverse order? The little BASIC program below shows a test I …
... 5,4,3,2 right shift; reverse taps 1,5,4 ... ,3 left shift); regardless of where I start ... 13,12,10,9 right shift; reverse taps 1,13,12 ... ,10 left shift) the reverse sequence goes wrong ... xor=xor AND xor2
21 LET xor=xor+VAL a$(3): LET xor=xor AND ... -
Optimal shifting for set pixel?Hi, I'm optimizing my set pixel code. For speed. But without using partitioned memory (i.e. a table on 256 byte boundary) I have optimal memory addr…
... a ; avoid special condition without shift / i.e. jr z
ld b,a ; our shift counter
xor a ; a=0
scf ; our shift bit
loop ... -
1st interface in 30 years (update)Hi all, Just a wee update to my "1st ZX interface in 30 years" project. Main IC's: 82C55 three 8-bit port I/O (configured for 12 dig in, 12 dig out…
... - Address decoding
74LS86 - Quad XOR
So, for no ... I added a couple of XOR gates in order to tie ... high = VALTOSEND >> 8; // Shift the integer right 8 bits ... .The cockroach is the Quad XOR as a temporary measure till ... -
Vertical XOR filler.. anyone?Hi, I was just wondering whether a vertical filler using XOR has ever been used on Speccy demos/games and if yes when for the first time? Just tryin…
Hi,
I was just wondering whether a vertical filler using XOR has ever been used on Speccy demos/games and if yes when for the first time? Just trying to find some references.. -
CAPS-SHIFT KeyCodeIs there a standard Keycode for CAPS-SHIFT Key ? Looking at the ROM documentation in the Main key table KEYTABLE_A, there is no Entry for CAPS_SHI…
... a standard Keycode for CAPS-SHIFT Key ?
Looking ... .
NOTES:
SYMBOL-SHIFT is mapped to control code ... A - Character set", so CAPS-SHIFT could be assigned 15 = 0x0F ... a defacto standard for CAPS-SHIFT keycode ?
P. ... -
XOR screenshotsXOR from 1987 is missing the loading screen and the in-game screen, Xor from 1990 has the in-game screen from another game.
XOR from 1987 is missing the loading screen and the in-game screen, Xor from 1990 has the in-game screen from another game. -
A Neat Redefine Keys RoutinePreviously, I’ve only shared this routine with a couple of people via PM, but I’ve now decided to make it public. I optimized it for size, so it uses…
... (23693),a ;set ATTR_P
xor a ;BORDER = 0
call ... , check if it is SYMBOL SHIFT
ld de,enter ; ... cp 39 ;is it CAPS SHIFT?
jr nz,as_is_key ; ... /> s_shf defm "S.SHIFT"
c_shf defm "C.SHIFT"
dummy_key ... -
ANN: Tipshop updated Friday, 03 August 2018Friday 03 August 2018 Blimey - this March update took a while to come round, eh? Feels like about 6 months! (Ahem. Ed)... Suffice it to say that Rea…
... /> Worm In Paradise, The and XOR.
And fixed/updated ... , Ned's Garden,
Night Shift, Nixy The Glade Sprite, Oink ... -
Textured Scanline Flood Fill for ZX Spectrum 48KPity that it's quite hard to contribute code to WoS in a straightforward manner. Recently, I have created a textured/hatched fill M/C routine for the…
Pity that it's quite hard to contribute code to WoS in a straightforward manner. Recently, I have created a textured/hatched fill M/C routine for the ZX Spectrum 48K. It was for a text/graphic adventure I'm working on. The algorithm is based on [url="http ... -
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…
... jr .shiftand1otherlinepressed
.toomanylines
xor a
inc a
ret
.only1halflinepressed
xor a ; zero A
.shiftand1otherlinepressed ... /> and ~2 ; mask out symbol shift bit
jr z, .onlysymshiftpressed ... -
Z80 AssemblerSome of you may know that I'm working on a Z80 assembler. I thought I'd start a thread so I can see what people think and what they might want to see…
... | bitwise OR ! bitwise NOT ^ bitwise XOR
= equality < less than ... -
Reading the keyboardDoes anyone have a code sample to read the keyboard in machine code ?
... d = max 1 keypress
xor a ; a = current key ... />
.skip
xor a
ld (count),a ... zero state AND count
xor a
ret
... represented
; by CAPS SHIFT + SYM SHIFT.
.SPkeytranstbl
Hi-Score tableThe score in my game occupies 3 bytes. I want to create a hi-score but I'm not sure of the best way to work out where a new score would fit in the ta…
...
XOR A
SBC HL,DE ; CALCULATE LENGTH OF SHIFT TABLE ... DE,ENDTAB
LDDR ; THE SHIFT
POP DE
LD ...Hi-Score tableThe score in my game occupies 3 bytes. I want to create a hi-score but I'm not sure of the best way to work out where a new score would fit in the ta…
... ***
XOR A
SBC HL,DE ; CALCULATE LENGTH OF SHIFT TABLE ...Key press to ASCII valueI need a bit of code that will give me an ASCII value when the key is pressed. I only really need a-z. I tried using the following code but it only s…
... d = max 1 keypress
xor a ; a = current key ... />
.skip
xor a
ld (count),a ... zero state AND count
xor a
ret
... represented
; by CAPS SHIFT + SYM SHIFT.
.SPkeytranstbl
z88dk+splib2 sprites question.I'm creating a game and I have several "states" for my main sprite, such as jump, facing left, facing right, etcetera. All those states require a dif…
This is the uncrunch algo for pucrunch:
[code]
;###
;### uncrunch.asm -- Standalone Pucrunch decompressor
;### Based on C64 code by Pasi Ojala
;### Ported to Z80 by Jussi Pitk?nen
;###
;### Thanks to Jeff ...
