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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…
... /> ; character map in FONT
push hl ; save font address
; convert ... the row to the base screen address
pop hl ; restore the font address
jr nc,odd_col ... -
Changing the font in z88dkEither I've got this backwards or the documentation is incorrect... :smile: "[URL="http://www.z88dk.org/wiki/doku.php?id=platform:zx"]The standard Z…
... to set the 32 column font you need to send data ... the high byte of the font address.
Well, I've ... -
Little character trouble with BASinWell, I'm having some trouble loading fonts into the speccy with BASIC, using BASin r13 for an easier job. When I run code, such as this example... …
... area. Font switching is a matter of a simple address update. You ... then set your font address into CHARS .
address=(y*256+x ... -
Jetpac questionHi all, I just bought a copy of Jetpac off of Ebay and I'm having problems. To start, I'm trying to play it on an issue 2 Speccy with Interface 1, 2 …
... /> LD (StartAddr),HL ; Save start address
;Set total errors ... /> ;Create string for last failed address
LD BC,(LastFailedAddr)
; This version - no selectable screen address or font address
; Does not support ... -
Rainbow Generator for 48K Spectrum using PUSHThis is what I came up with from [B]gasman[/B]'s suggestions. It's stable in ZXSpin and ZX32 simulating a 48K Speccy. Anyone like to try it on the …
... address system variable
ld (hl), 0x00 ; set
inc hl ; font ...
ld (hl), 0xcc ; address
ld ... hl, udg ; address system variable
ld bc, (chars) ; font address
ld h, 0 ; set ... -
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…
... /> ; character map in FONT
push hl ; save font address
; convert ... the row to the base screen address
pop hl ; restore the font address
ld b, 8 ; 8 ... -
GUI/OS for the Spectrum?Hi, Is anybody working on a WIMP/GUI system for the Spec? Is there anything current out there? [url]http://snakeoillabs.com/wordpress/2005/10/30/8…
... /> ; character map in FONT
push hl ; save font address
; convert ... the row to the base screen address
pop hl ; restore the font address
ld b, 6 ; 6 ... -
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 …
... br /> PRCHAR LD H,?? ; font address at address ??*2048
LD L,A ... ---------------------
PRCHAR LD H,?? ; font address at address ??*2048+1024
LD L ... to reference the ROM font address at 15360)
... -
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 …
... 127 [B]and[/B] ROM font? Tsk, tsk... :)
[ ... t apply to the ROM font... as I already indicated in ... -byte boundary", i.e. "font address at address ??*2048+1024", where the ROM ... font was merely an specific case ... -
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…
... flag', 'Tab position', and 'font address' - so that other fonts could ... br /> PUSH HL ; Save address of 2nd byte of new ... hl pointing at the screen address
ld de, ... hl pointing at the screen address
ld de, ... -
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…
... 'OVER flag', 'Tab position', and 'font address' - so that other fonts could ... -
FZX: a new standard format and driver for proportional fonts[B]FZX[/B] is a very compact and efficient (although extremely flexible and powerful) standard format to create new fonts for the ZX-Spectrum. It sup…
... br /> [CODE] The font is located at address 60000 by default. If ... use a font
located at another address without recompiling ... directly change the
font address stored at addresses DRIVER+ ... just need to set the font address like this:
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…
... push de ; save font address *
jr z ... pop hl ; restore font address *
ld ( ...Changing the font in z88dkEither I've got this backwards or the documentation is incorrect... :smile: "[URL="http://www.z88dk.org/wiki/doku.php?id=platform:zx"]The standard Z…
... to set the 32 column font you need to send data ... the high byte of the font address.
Well, I've ... />
[code]unsigned char highByte = font >> 8;
unsigned ...Tile routinesHi all, Please does anyone have any examples of tile routines in pure asm to set up maptile screens. I would like to try and understand them and ti…
...
ld de,#4000 ;screen address (D must be #40, #48 ... /> ld bc,#3C00 ;BC=ROM font address
ld l,a
add hl,bc ;HL=address of the source character graphics ...Tile routinesHi all, Please does anyone have any examples of tile routines in pure asm to set up maptile screens. I would like to try and understand them and ti…
...
ld de,$4000 ;screen address (D must be #40, #48 ... /> ld bc,graphic ;BC=ROM font address
ld l,a
;HL=address of the source character graphics ...UDG tricks?I always enjoyed using [URL="http://www.worldofspectrum.org/ZXBasicManual/zxmanchap14.html"]UDGs [/URL]for the 'sprites' in my games, when I coded th…
... 256?) smaller than the actual address. eg. if your new fonts ... 32..95, but set my font address as if it went all ...Double height text...<p>Is here any good routines for printing a font double height?</p><p>I've concocted this ridiculous routine but I'm sure it can be done much better.…
... to use an absolute screen address, could be changed though ... br /> push de ;save screen address
call print_tall_char
... pop de ;screen address
inc ix ;next ... ld bc,15360 ;ROM font, insert your own font address here
add ...Double height text...<p>Is here any good routines for printing a font double height?</p><p>I've concocted this ridiculous routine but I'm sure it can be done much better.…
... half font and a bottom half font and just swaps the font address sysvar ... characters printed by setting the font variable to point at the ...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…
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…
... push de ; save string address
push bc ... pop de ; get string address
inc de ... /> push de ; save font address (width)
inc ...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…
... ; Calculate location of the character font data in FONT_ADDR
; Formula ... /> ld bc,FONT_ADDR-224 ;add font address - correct for missing sbc a ... the font so we can add hl,bc for screen address< ... /> ld l,a ; screen address LSB is 0 so just ...Text scroller and custom fontYesterday I was testing this text scroll routine taken from Jonathan Cauldwell's Intro Maker (labels have been inserted to allow partial code relocab…
... on the start of the font
LD D,A ; this ... bottom 3 bits as the font will start on a multiple ...
LD DE,(23606) ; get font address ( don't forget its minus ... ,DE ; HL now address of the character in the font
EX ...
