New firmware release R1.18

12-Home computer/LM80C_64K-firmware-r1.18.asm

@@ -0,0 +1,99 @@
+; ------------------------------------------------------------------------------
+; LM80C 64K - FIRMWARE - R1.18
+; ------------------------------------------------------------------------------
+; The following code is intended to be used with LM80C Z80-based computer
+; designed by Leonardo Miliani. More info at
+; www DOT leonardomiliani DOT com
+; ------------------------------------------------------------------------------
+; Coding/Editing/Compiling:
+; Original init code for MC68B05 by Grant Searle
+; Original SIO/CTC/PIO init code by Mario Blunk
+; NASCOM BASIC originally modified by Gran Searle
+; Code modified and adapted for LM80C by Leonardo Miliani
+;
+; Edited with Visual Studio Code
+;
+; Compiled with SjASMPlus assembler 1.18.2
+; https://github.com/z00m128/sjasmplus
+; ------------------------------------------------------------------------------
+; Copyright notes:
+; Parts of the code (c) Grant Searle - free for non commercial use
+; Please include this advice and the note to the attribution of the original
+; version to Grant Searle if you intend to redistribuite it
+; http://searle.hostei.com/grant/index.html
+; eMail: [email protected]
+;
+; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+; Parts of the code (c) Mario Blunk
+; http://www.train­z.de
+;
+; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+; NASCOM ROM BASIC Ver 4.7, (C) 1978 Microsoft
+; Scanned from source published in 80-BUS NEWS from Vol 2, Issue 3
+; (May-June 1983) to Vol 3, Issue 3 (May-June 1984)
+; Adapted for the freeware Zilog Macro Assembler 2.10 to produce
+; the original ROM code (checksum A934H). PA
+;
+; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+; The following code is intended to be used with LM80C Z80-based computer
+; designed by Leonardo Miliani. Code and computer schematics are released under
+; the therms of the GNU GPL License 3.0 and in the form of "as is", without no
+; kind of warranty: you can use them at your own risk.
+; You are free to use them for any non-commercial use: you are only asked to
+; maintain the copyright notices, include this advice and the note to the 
+; attribution of the original version to Leonardo Miliani, if you intend to
+; redistribuite them.
+; https://www.leonardomiliani.com
+; 
+; Please support me by visiting the following links:
+; Main project page: https://www.leonardomiliani.com
+; Schematics and code: https://github.com/leomil72/LM80C
+; Videos about the computer: https://www.youtube.com/user/leomil72/videos
+; Hackaday page: https://hackaday.io/project/165246-lm80c-color-computer
+; ------------------------------------------------------------------------------
+; set name for binary output file
+    OUTPUT "LM80C-64K-firmware-r1.18.bin"
+
+; set firmware version
+    DEFINE VERSION "1.18"
+
+; set DOS version
+    DEFINE  DOS_VER "1.05"
+
+; ------------------------------------------------------------------------------
+; include the latest version of the bootloader: this sets up the address aliases,
+; configure the hardware, checks if warm or cold startup and loads the BASIC interpreter
+    INCLUDE "../include/bootloader/bootloader-1.07.asm"
+
+; incude the latest version of the VDP module
+    INCLUDE "../include/vdp/vdp-1.08.asm"
+
+; incude the latest version of the PSG module
+    INCLUDE "../include/psg/psg-1.02.asm"
+
+; include the latest version of the LM80C 64K BASIC interpreter
+    INCLUDE "../include/basic/basic-1.13.asm"
+
+; include utils
+    INCLUDE "../include/utils/utils-r1.2.asm"
+
+; include the latest version of the font sets
+    INCLUDE "../include/vdp/6x8fonts-r16.asm"
+    INCLUDE "../include/vdp/8x8fonts-r18.asm"
+    INCLUDE "../include/vdp/logo-fonts.asm"
+
+; include ROM/RAM switcher
+    INCLUDE "../include/switcher/switcher-r1.03.asm"
+
+; include workspace equates
+    INCLUDE "../include/workspace/workspace-r1.02.asm"
+
+; include the latest versions of the CF & DOS modules
+; do NOT move these files from this position and
+; do NOT alter their order!
+    INCLUDE "../include/dos/dos-1.05.asm"
+    INCLUDE "../include/dos/bios-1.03.asm"
+    INCLUDE "../include/dos/buffers-1.01.asm"
+
+; END OF ASSEMBLY SOURCE
+;-------------------------------------------------------------------------------

12-Home computer/changelog-64k.txt

@@ -9,6 +9,14 @@ for the LM80C 64K Color Computer. More info at www DOT leonardomiliani DOT com
 
 P.S.: for the changelog of the LM80C Color Computer see the corresponding changelog file
 
+---------------------------------------------------------------------------------------------
+1.18    - 20210409
+
+- New keyboard shortcut: when pressing "C=" (ALT) and "CTRL" keys together, the system resets
+  the BASIC environment, clears the variables, clears the system stack, set the screen to
+  graphic mode 1, re-initialize the PSG, close any seq. file still open, reset serial lines,
+  and returns to the BASIC prompt; the program into memory is NOT deleted.
+
 ---------------------------------------------------------------------------------------------
 1.17    - 20210408
 
@@ -57,10 +65,10 @@ P.S.: for the changelog of the LM80C Color Computer see the corresponding change
 ---------------------------------------------------------------------------------------------
 1.10    - 20210307
 
+- New LM80C DOS 1.0 introduced, with new BASIC commands DISK, FILES, LOAD, SAVE, ERASE.
 - New cold reset: by pressing the RUN/STOP key during the boot sequence, the computer
   restarts again and re-copy the firmware from ROM to RAM, to restore the original code
   and fix FW modifications made with POKEs w/o the need to power off the computer;
-- Added support for LM80C DOS 1.0 and new commands DISK, FILES, LOAD, SAVE, ERASE.
 
 ---------------------------------------------------------------------------------------------
 1.05    - 20210119