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In Java for ZXHi All I am glad to notify you that I have opened the sources of my J2Z80 translator (0.1 version) which allows to use Java toolchain to generate Z8…
... : ; (in) A - arguments length in bytes, (in)BC - needed full stack ... in bytes, (out) IX - the start of the frame
LD HL ... the first argument
LD D,H ; DE contains the ... first element address
LD E,L
... -
In Java for ZXHi All I am glad to notify you that I have opened the sources of my J2Z80 translator (0.1 version) which allows to use Java toolchain to generate Z8…
... in) A - arguments length in bytes, (in)BC - needed full ... bytes, (out) IX - the start of the frame
LD ... argument
LD D,H ; DE contains ... in) A - arguments length in bytes, (in)BC - needed full ... bytes, (out) IX - the start of the frame
LD ... -
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 …
... position pointer
ld a, (hl) ;print pattern
ld a, (hl)
ld (bc), a
... Any font aligned by 8 bytes
How much RAM ... -
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 …
... ?[/B]
64 bytes plus the string
bytes of the char ([I] ... top
ld a,(hl) ;put 7 bytes of data in ... a char cell
ld (de ... 8 ;which is 8 high bytes
ld d,a
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 …
... D
ld a,(hl) ;put 7 bytes of data in ... a char cell
ld (de ... ,8 ;which is 8 high bytes
ld d,a
print_string ... /> inc bc ;next ASCII
ld a,(bc) ;get ascii
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 …
... ;632091]
[code]
ld a,d
sub 6 ...
ld d,a
... FASTER THAN JR?
ld a,d ;next segment down ... 8 ;which is 8 high bytes
ld d,a
[/code ... states:
[code]
ld a,d
inc e ...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 …
... ! Adding:
[code]pstring
ld (stk+1),sp
add ... a,a
and
ld sp,0 ; after the inc ... in 296T states in 42 bytes. 50% faster than my fastest ...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 …
... ld (.savesp),sp
ld hl,16384
ld ix,.loop
ld ... de,some_constants1 ;de and bc store the most common graphic bytes ... in a font
ld bc,some_constants2 ... containing 'letter addresses'
ld bc,string
jp ...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 …
... ld (.savesp),sp
ld hl,16384
ld ix,.loop
ld ... de,some_constants1 ;de and bc store the most common graphic bytes ... in a font
ld bc,some_constants2 ... containing 'letter addresses'
ld bc,string
jp ...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 …
... find out four most common bytes first (or maybe just ... br /> ld hl,16384
ld ix,loop
ld de,(someconstants1 ... ) ;de and bc store the most common graphic bytes ... in a font
ld bc,(someconstants2) ...'Spectrum Play' ErrorI always wondered why the screen sometimes filled with 'SPECTRUM PLAY' if I loaded a 48k game in 128k mode (using my 128k+2B). Colditz Story in parti…
... to "bounce" the display file bytes up & down by a ... /> ;33001
ACTIVATE: LD A,$80
LD I,A
IM ... )
xor 1
ld (23606),a
pop af ...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 …
... /> LD H,0 LD H,0
LD L,A LD L ... Print matrix
PRMTX LD DE,(DFCC) LD DE,(ATTCC) ; DE=current ... Get current attributes
LD (HL),A LD (HL),A ; Set screen ... br />
; 49 bytes 41 bytes
; 524T per char ...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 …
... /> LD H,0 LD H,0
LD L,A LD L ... Print matrix
PRMTX LD DE,(DFCC) LD DE,(ATTCC) ; DE=current ... Get current attributes
LD (HL),A LD (HL),A ; Set screen ... br />
; 49 bytes 41 bytes
; 524T per char ...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 …
...
ld a,'-'
ld (de),a ; write negative ... max stack depth is 34 bytes for base 2
bytes of memory
... 2 to write n bytes to memory
... /> ; maximum 16 bytes
ld (hl),a
...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 …
...
ld de,2 ; each item in array is 2 bytes (pointer ... to string)
ld ix,strcasecmp_callee ; use ... O(lg n). Only four bytes per recursive iteration is reserved ... /> ld e,c
ld d,b
ld c,l
ld b ...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 …
... clever solution. This is 30 bytes, I suppose using djnz ... in d,e
ld de,30792 ;nice white and ... paper in de
ld hl,22528 ;start of attributes ...
row1 ld (hl),d
inc hl ... jr nz,row1
row2 ld (hl),e
inc hl ...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 …
... solution. This is 30 bytes, I suppose using djnz ... paper in de
ld hl,22528 ;start of ... attributes
row1 ld (hl),d
inc ... start of attributes
row1 ld (hl),d
inc ... swap ld a,d
ld d,e
ld e,a ...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 …
... /> xor a 1
ld b,24 2
fill2 ... : ld c,b 1
ld b,32 2 ...
cpl 1
ld b,c 1
djnz ... ret 1
19 bytes
[/code]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 …
[QUOTE=ccowley;639968][code]
ld hl,22528 3
xor ... 2
cpl 1
ld b,c 1
djnz ... /> ret 1
19 bytes
[/code][/QUOTE]
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 …
... /> ld sp,23296
ld hl,$7848
ld d,l
ld e ... ,h
ld a ... quite the shortest at 27 bytes. But I'd thought I ...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 …
... Dr.Beep's 23 bytes is the shortest so ... CHEQUE: ld a,%01111000
ld de,22528
ld c ... ,12
LOOP0: ld hl,32
ld ... xor %00110000
ld (de),a
inc ...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 …
... So Dr.Beep's 23 bytes is the shortest so far ... 22!
[code]
ld de,$7848
defb 33 ... br /> inc hl
ld (hl),e
djnz ... samerow
ld a,e
ld e,d
...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 …
... /> [code]
ld hl,22528
ld de,$7848
ld c,24 ... fill1
ld a,d
ld d,e
ld e,a ...
[/code]
23 bytesMachine 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 …
20 bytes:
[code] ld a,%01111000
ld e,%00110000
ld hl,23295 ...
LOOP0: ld ...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 …
... code]
ld hl,$5800
ld de,$3008
ld a,$78 ...
loop3: ld c ... br /> loop2: ld b,8
loop1: ld (hl),a< ... djnz loop1
ld b,8
space: inc ... this a lot smaller in bytes.
Edit:
...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 …
17 bytes when compiled at 30768
< ... />
CHEQUE: ld a,b
ld hl,$5800
ld b,$18 ...
loop1 xor c
ld (hl),a
inc hl ...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 …
[QUOTE=Dr BEEP;640082]17 bytes when compiled at 30768
< ... />
CHEQUE: ld a,b
ld hl,$5800
ld b,$18 ...
loop1 xor c
ld (hl),a
inc hl ...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 …
... .
[CODE] ld hl, $5b00
loop0 ld a, l
jp pe, loop1
ld (hl), $48
loop1 dec ... ][/QUOTE]
17 bytes with a return added, and ...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 …
16 bytes. Now we have a ... org $7848
ld hl, $5aff
loop0 ld a, (bc)
and l
ld (hl), b
jp pe ... , loop1
ld (hl), c
loop1 ...
