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      Doc/Contrib/Microsoft NASCOM BASIC.docx
  2. 98
      Source/Doc/ROM_Applications.md

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Doc/Contrib/Microsoft NASCOM BASIC.docx

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Source/Doc/ROM_Applications.md

@ -84,7 +84,7 @@ A quick guide to using the Monitor program follows:
``` ```
Monitor Commands (all values in hex): Monitor Commands (all values in hex):
B - Boot system B - Boot system
D xxxx yyyy - Dump memory from xxxx to yyyy
D xxxx [yyyy] - Dump memory from xxxx to yyyy
F xxxx yyyy zz - Fill memory from xxxx to yyyy with zz F xxxx yyyy zz - Fill memory from xxxx to yyyy with zz
H - Halt system H - Halt system
I xxxx - Input from port xxxx I xxxx - Input from port xxxx
@ -108,10 +108,13 @@ returns to the Boot Loader prompt.
## Dump Memory ## Dump Memory
D xxxx yyyy - Dump memory from hex location xxxx to yyyy
D xxxx [yyyy] - Dump memory from hex location xxxx to yyyy
on the screen as lines of 16 hexadecimal bytes with their on the screen as lines of 16 hexadecimal bytes with their
ASCII equivalents (if within a set range, else a '.' is ASCII equivalents (if within a set range, else a '.' is
printed). A good tool to see where code is located, check
printed). If the end address is omitted then 256 bytes is
displayed.
A good tool to see where code is located, check
for version id, obtain details for chip configurations and for version id, obtain details for chip configurations and
execution paths. execution paths.
@ -206,7 +209,7 @@ to load a program that has been assembled to a hex file on the
remote computer. remote computer.
An excellent online resource for looking up opcodes for entry An excellent online resource for looking up opcodes for entry
can be found here: (https://clrhome.org/table)
can be found here: [https://clrhome.org/table](https://clrhome.org/table)
## Run program ## Run program
@ -263,14 +266,7 @@ ROM | ROM DRIVE START | 04 |
ROM | ROM DRIVE END | 0F | 512K ROM SYSTEM ROM | ROM DRIVE END | 0F | 512K ROM SYSTEM
ROM | ROM DRIVE END | 1F | 1024K ROM SYSTEM ROM | ROM DRIVE END | 1F | 1024K ROM SYSTEM
## NOTES:
The RTC utility on the CP/M ROM disk provides facilities
to manipulate the Real Time Clock non-volatile Memory.
Use the C or Z option from the Boot Loader to load CP/M
and then run RTC to see the options list.
# X-modem transfer
## X-modem transfer
T xxxx - Receive an X-modem file transfer and load it into T xxxx - Receive an X-modem file transfer and load it into
memory starting at location xxxx. memory starting at location xxxx.
@ -281,16 +277,24 @@ protocol.
If the monitor is assembled with the DSKY functionality, If the monitor is assembled with the DSKY functionality,
this feature will be exclude due to space limitions. this feature will be exclude due to space limitions.
## NOTES:
The RTC utility on the CP/M ROM disk provides facilities
to manipulate the Real Time Clock non-volatile Memory.
Use the C or Z option from the Boot Loader to load CP/M
and then run RTC to see the options list.
# FORTH # FORTH
CamelForth is the version of Forth included as part of the boot CamelForth is the version of Forth included as part of the boot
ROM in ROMWBW. It has been converted from the Z80 CP/M version ROM in ROMWBW. It has been converted from the Z80 CP/M version
published here (www.camelforth.com/page.php?5). The author is Brad
published here [www.camelforth.com/page.php?5](www.camelforth.com/page.php?5). The author is Brad
Rodriguez who is a prolific Forth enthusiast, whose work can be Rodriguez who is a prolific Forth enthusiast, whose work can be
found here: (www.bradrodriguez/papers/index.html)
found here: [www.bradrodriguez/papers/index.html](www.bradrodriguez/papers/index.html)
For those are who are not familiar with Forth, I recommend the For those are who are not familiar with Forth, I recommend the
wikipedia article (en.wikipedia.org/wiki/Forth_(programming_language))
wikipedia article [en.wikipedia.org/wiki/Forth_(programming_language](en.wikipedia.org/wiki/Forth_(programming_language))
and the Forth Interest Group website [www.forth.org](www.forth.org) and the Forth Interest Group website [www.forth.org](www.forth.org)
## Important things to know ## Important things to know
@ -332,7 +336,7 @@ allocated for addition words. Exceeding the allocated ROM space will generate an
message when building. message when building.
James Bowman's double precision words have been added from his RC2014 version: James Bowman's double precision words have been added from his RC2014 version:
(https://github.com/jamesbowman/camelforth-z80)
[https://github.com/jamesbowman/camelforth-z80](https://github.com/jamesbowman/camelforth-z80)
Word | Syntax | Description Word | Syntax | Description
--------|----------------------------|--------------------------------- --------|----------------------------|---------------------------------
@ -344,8 +348,68 @@ M*/ | d1 n2 u3 -- d=(d1*n2)/u3 | double precision mult. div
# BASIC # BASIC
For those who are not familiar with BASIC, it stands for Beginners All purpose Symbolic
Instruction Code.
ROMWBW contains two versions of ROM BASIC, a full implementation and a "tiny" BASIC.
The full implementation is a version of Microsoft BASIC from the NASCOM Computer.
A comprehensive instruction manual is available in the Doc\Contrib directory.
## ROMWBW specific features
- Sound
- Graphics
- Terminal Support
## ROMWBW unsupported features
- Cassette loading
- Cassette saving
# TastyBASIC # TastyBASIC
Integer arithmetic only
## Direct Commands
- `LIST`
- `RUN`
- `NEW`
- `CLEAR`
- `BYE`
## Statements
- `LET`
- `IF`
- `GOTO`
- `GOSUB RETURN`
- `REM`
- `FOR TO NEXT STEP`
- `INPUT`
- `PRINT`
- `POKE`
- `END`
## Functions
- `PEEK`
- `RND`
- `ABS`
- `USR`
- `SIZE`
## Operators
- `>=`
- `#`
- `>`
- `=`
- `<=`
- `<`
# Play a Game # Play a Game
## 2048 ## 2048
@ -511,7 +575,7 @@ exiting to the Boot loader as your machine may not be bootable.
Option ( D ) - Duplicate flash #1 to flash #2 Option ( D ) - Duplicate flash #1 to flash #2
This option will make a copy of flash #1 ont flash #2. The purpose of this is to enable
This option will make a copy of flash #1 onto flash #2. The purpose of this is to enable
making a backup copy of the current flash. Intended for systems using 2x512Kb Flash devices. making a backup copy of the current flash. Intended for systems using 2x512Kb Flash devices.
Option ( V ) - Toggle Write Verify Option ( V ) - Toggle Write Verify

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