-
Interface 1 - RS232 question.I am thinking about doing some Spectrum stuff based around the RS232 port used on the Interface 1. Has anyone had any joy doing this with an emulator…
... of start bits, stop bits, parity, CTS/RTS - just let the ... -
Artwork and advert preservation in lossless high qualityI am aware of the scans available of software and magazines in places such as WOS but I was curious to know if there was any attempt to digitally pre…
... two copies and add some parity blocks as well. I've ... -
What do I need to know about SSD HDDs?I've not been paying too much attention to the complexities of building a PC for about 10 years so I've got no idea what the standards are now. I'…
... you had to know the parity of your DIMM's and ... and SIMM's anymore? Is parity even relevant at all these ... -
What do I need to know about SSD HDDs?I've not been paying too much attention to the complexities of building a PC for about 10 years so I've got no idea what the standards are now. I'…
... you had to know the parity of your DIMM's and ... and SIMM's anymore? Is parity even relevant at all these ... -
Help needed with MIA software with custom (?) loaderHi, I've got into my hands recently a bunch of Polish educational software which are unknown MIA on WOS. I believe they are protected with some…
... /> 0xEA93 LD H,00 ; Initialize parity
0xEA95 JP EA9C ; Jump ... LD A,H ; Get current parity
0xEAA0 XOR L ; ... /> 0xEB2B LD H,00 ; Initialize parity to 0 (ROM)
0xEB2D ... -
Mastering flagsI'm little lost when different flags are set/reset after logic operations, and what conditions must be met. For example, [code] ld a, MODE…
The parity flag is set when the result has an even number of bits set.
It's always nice to have a mnemonics table at hand for this kind of stuff. For example, http://www.z80.info/z80flag.htm deals specifically with flags. -
Mastering flagsI'm little lost when different flags are set/reset after logic operations, and what conditions must be met. For example, [code] ld a, MODE…
... is the sign flag, not parity. It is checking whether the ... -
Dandy - Hacking lvl 6 needed, please.So, I've always wondered what's in the top right corner of level 6 of Dandy. I don't recall there being a fake wall or a door. But I wonder if som…
...
Then fix the parity byte (it should be 61 ... -
XeldaI've decided to take on the Zelda tribute game and take over the Xelda title (because it's a great title name). Working with the MK2 Mojon twins gam…
... - especially in handwriting.
|||||||| parity
Dungeon is the ... -
Unusual custom turbo loaders - with sourcesI have always been fascinated by turbo loaders; my games all feature a TZX version with one of such schemes implemented, and I have been experimentin…
... a repeating byte) and initialise parity
; pulses ... sv_next_byte ; Note: we skip updating parity for repeating bytes
< ... rep_byte_load ; we won't update parity with repeating bytes
Test your emulator with one damn tricky TZX file!Some time ago I got hold of this tricky TZX file with a custom [i]super[/i] turbo-loader. [i]The load time is 18 seconds (!)[/i]. Until recently, I w…
... you mean it ignores the parity-byte ??
[/quote]
I ...PLATOTerm for IRATA.ONLINE for ZX SpectrumHello everyone, I've been holding off on any formal announcement until the terminal actually functioned, but, now that there is a version of PLAT…
IN instruction on emulatorsHi everyone I wrote: 10 PAUSE 0 20 PRINT IN 63486 If i press 1, result is 190 instead of 254 (i used FUSE and Spin) If i press 2, 189 (253) i…
Depends on the instruction. LD A,(*) doesn’t affect the flags, but LD A,(C), for example, does affect the parity, sign, and zero flags.IN instruction on emulatorsHi everyone I wrote: 10 PAUSE 0 20 PRINT IN 63486 If i press 1, result is 190 instead of 254 (i used FUSE and Spin) If i press 2, 189 (253) i…
[quote="Ast_A_Moore;948271"]Depends on the instruction. LD A,(*) doesn’t affect the flags, but LD A,(C), for example, does affect the parity, sign, and zero flags. [/quote]
LD A,(BC)?IN instruction on emulatorsHi everyone I wrote: 10 PAUSE 0 20 PRINT IN 63486 If i press 1, result is 190 instead of 254 (i used FUSE and Spin) If i press 2, 189 (253) i…
... ), for example, does affect the parity, sign, and zero flags. [/quote ...bug - Crystal of Power (TXT Adv)You can explore about 20 locations, but [b]game crashes[/b] if you go from start: E, E, S, S, S. To same location (bug) you can go on alternative…
... TZX maker's miss, the parity byte is correct (no R ...Remainder (Mod) calculationsI've been figuring out how to calculate remainders after integer division by a constant divisor k (A mod k = A % k). I found that for most small di…
[quote="Paradigm Shifter;982963"]Most division routines end up with the remainder as a side effect so you shouldn't have to do the multiplication to get the remainder if you have to divide first[/quote]
If you calculate division by a constant using ...Robospec (new project, hopefully useful as a tutorial as well)Starting a new project after my graphics investigations. * It's gonna be a Robotron clone since that's not too ambitious (although I'd like to hav…
... are reset, P/V is parity, S and Z are modified ...So let's talk about Roger WatersNow, i think everybody should be allowed to have their own opinions. Even speaking them out loud without the fear of losing their job or source of in…
... -why-the-euros-fall-below-parity-versus-dollar-matters )
