-
Can a guy that traveled on the short bus learn machine code...Hmmm So after some soul searching I figured it was time to finaly nail spectrum machine code. Its so frustrating to sit infront of a basic listing w…
... ; Re-set bit 0, Register C
RET ; Return ... ; Re-set bit 0, Register C
RET ; Return ... show...
REGISTER A:
REGISTER B:
... ]http://www.sevenstring.org/forum/hosted/131460b2423506dd.jpg[/IMG] -
Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... br /> By committing the C register for reading port 0xFE, I ... This does cost me one register, but 47loader hasn't ... from C as the register in which the byte ... mean committing the B register to be 0xFF permanently ... a bit more margin for error than before.
The Pros and Cons of "alternative" assembler syntaxContinuing from [URL]http://www.worldofspectrum.org/forums/showpost.php?p=720754&postcount=72[/URL] [QUOTE=u6c87;720754]But that wouldn't change if…
... without syntax error but produce a semantic error. Specifying the source register removes ...The Pros and Cons of "alternative" assembler syntaxContinuing from [URL]http://www.worldofspectrum.org/forums/showpost.php?p=720754&postcount=72[/URL] [QUOTE=u6c87;720754]But that wouldn't change if…
... produce a semantic error. Specifying the source register removes this possibility.[/QUOTE ...Introduce yourself[SIZE=3][FONT=Comic Sans MS]This is the thread to stop by & introduce yourself.[/FONT][/SIZE]
... of this forum for many years, but decided to register here now ... again. I thought I'd register so as to get involved ...Introduce yourself[SIZE=3][FONT=Comic Sans MS]This is the thread to stop by & introduce yourself.[/FONT][/SIZE]
... of this forum for many years, but decided to register here now ... again. I thought I'd register so as to get involved ...Compiler conventions for passing args/return valuesI've been mulling over this for a while, but I can't spot it covered anywhere. There are various methods for passing args and return values between …
... a trip to the A register ("sbc a,a; and 0x01 ... /> ; carry reset no errors
; error : (*) if string = NULL
; carry ... also in the (de)hl register).Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
47loader's error detection has been enhanced, replacing ... /> I'm using the L register for the byte called C0 ...let's contact Martjin about WoS updates. who's in touch with him?[QUOTE=Ralf;719939]You are right Kasia. Are you female, by the way? ;) WOS won't disappear but may fall into decline and stagnation. Without any ne…
tbh if i thought a website was going to shut down, id register on the forum just to keep posting my fears, and try to get people to share in the skeptism.
also id edit its wikipedia page for good measure.
but thats just me.let's contact Martjin about WoS updates. who's in touch with him?[QUOTE=Ralf;719939]You are right Kasia. Are you female, by the way? ;) WOS won't disappear but may fall into decline and stagnation. Without any ne…
... to shut down, id register on the forum just to keep posting ... me.[/QUOTE]
This forum also needs updating, so I ...coding guruOk I'm looking for a to help me in my quest to do my first proper game. The 80's child in me thinks he can do it, But the 2013 man in me knows zip. …
... : load a value into a register.
2: use a rom ... code. the guys on the forum are great at performance coding ...Been busy today.... Protesting!Today I went to Amsterdam to protest against the government. Here I am when someone took a photo of the political leader of the dutch socialist part…
... ][/QUOTE]
Ha! wrong forum. You need to be in ... find an 'Ah Pollicy Loading Error'or an 'Um, bus stops ... no good error' and maybe one or two ...Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... greater, reducing the likelihood of error.
In other 47loader ... 're fun to write. So, forum: is there a colour scheme ...What would be the simplest tape loading routine?I'm searching for some small assembly snippet I can use to load a (headerless or not) block from tape into RAM I can embed in my C games to load furt…
... in the L
register.
LD B,+ ... (Carry flag reset if in error.)
THE ...
is an error.
05E7 LD- ...SE BasicAfter 13 years of development I thought I'd run out of things to optimize, but it turns out I was wrong. However, I'm now running out of time to work…
... /> [*]Error escaping: ON ERROR STOP.
[*]Error skipping: ON ERROR CONTINUE.
[*]Error trapping: ON ERROR ... Timex hi-res.
[*]IY register available in interrupt mode 1 ... variable space accessible via IY register.
[*]Works with esxDOS on ...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…
...
call fp_to_a ; get register byte
cp 17 ; ... br /> jp nc, report_b ; error if out of range
error if out of range
ld bc, ay_reg ; register port ... get exponent
and a ; error if not in
jr ...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 /> one_shift:
exx ; alternate register set
sra l ; shift ... floating point
exx ; alternate register set
push hl ; ... 0x31ad
report_6:
rst error ; report
defb Number_too_large ; ...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 /> jr c, report_6 ; error if divide by zero
exx ; alternate register set
push hl ; ... stack
exx ; alternate register set
push hl ; ... jp nz, report_6 ; jump if error
ld a, c ; ...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…
... entry
jp c, report_2 ; error if not
call z ... NOT?
jp c, report_c ; error if not
ld bc ... so
jp nc, report_c ; error if out of range
s_not_and:
jr c, s_rprt_c2 ; error if operation not plus
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…
... so
pop af ; unstack error register
call int_exp2 ; second ... sl_define:
pop af ; unstack error register
ex (sp), hl ; stack ... stack
pop af ; unstack error register
call syntax_z ; checking ...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…
... pointers
exx ; alternate register set
pop hl ; ... /> jr nz, report_a ; error if it was not one ... /> jr nc, report_a ; error if not
ld bc ...
report_a:
rst error ; error
defb Bad_argument ; bad ...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…
...
report_bd:
rst error ; error
defb Integer_out_of_range ; out ... x80_fdjnz:
exx ; alternate register set
push hl ; stack ...
report_6b:
rst error ; error
defb Number_too_large ; overflow ...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…
... ; stack step
exx ; alternate register set
pop bc ; horizontal ... br /> jr z, report_b3 ; else error
org 0x24cc
report_b3:
rst error ; else
defb Integer_out_of_range ; error
.endif
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…
... del_error:
rst error ; else
defb Bad_argument ; error
... report_j:
rst error ; report
defb Bad_device ; error
... /> print_a_2:
exx ; alternate register set
push hl ; ...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 /> sbc hl, de ; error reached?
jr nz ...
exx ; alternate register set
ld hl, ...
rst error ; else
defb Syntax_error ; error
error address
ret ; done ...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…
... ; call address
exx ; alternate register set
ld hl, 0x2758 ... /> renum_error:
rst error ; report
defb Parameter_error ; error
org ... ; zero?
jr z, renum_error ; error if no increment
call ...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…
... nz, report_k ; error if not
ld a, c ; register to A ... ; valid register (0 to 64)?
jp nc, report_k ; error if not ...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…
... /> exx ; main register set
ret ... err_sp) ; get current error pointer
push ...+2a double vision - uncommon problemHelloo - I was helped by Guesser on a previous occasion on a toastrack, so many thanks to him for that! Today's problem is the RGB display from a +2a…
... you uploaded to RWAP's forum.
Looking at ... were posted on the other forum, there are artifacts on ... it is a digital timing error, not any type of ... analogue error. It cannot be signal ... images or attachments to this forum, as this is not ...
