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BASIC DEVELOPMENT

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deadvey
2026-03-03 15:37:18 +00:00
parent 696f8198ad
commit a3ed2c801a
1 changed files with 5 additions and 14 deletions
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docs/BASIC_DEVELOPMENT.md
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@@ -17,8 +17,6 @@ If a MikeOS BASIC program is run from the command line, and one or more paramete
Here's a small example program demonstrating a FizzBuzz program. Here's a small example program demonstrating a FizzBuzz program.
rem *** MikeOS BASIC example program ***
``` ```
# A cool fizzbuzz program # A cool fizzbuzz program
PRINT "FizzBuzz!" PRINT "FizzBuzz!"
@@ -152,13 +150,13 @@ print "Hello world"
move 0 0 move 0 0
curschar x curschar x
rem *** The next command will print 'H' *** # The next command will print 'H'
print chr x print chr x
move 1 0 move 1 0
curschar x curschar x
rem *** The next command will print 'e' *** # The next command will print 'e'
print chr x print chr x
``` ```
@@ -174,7 +172,7 @@ curscol x
Get the position of the cursor. Example: Get the position of the cursor. Example:
``` ```
rem *** First is column, then row *** # First is column, then row
curspos a b curspos a b
``` ```
@@ -190,7 +188,7 @@ delete "myfile.txt"
Perform a loop until a condition is met (UNTIL or WHILE). You can also set up an infinite loop with LOOP ENDLESS at the end. Example: Perform a loop until a condition is met (UNTIL or WHILE). You can also set up an infinite loop with LOOP ENDLESS at the end. Example:
``` ```
do do
rem *** Code goes here *** # Code goes here
loop until x = 10 loop until x = 10
``` ```
@@ -429,7 +427,7 @@ In the first print command, the output is 109. In the second, the output is the
Generate a random integer number between two values (inclusive) and store it in a variable. Example: Generate a random integer number between two values (inclusive) and store it in a variable. Example:
``` ```
rem *** Make X a random number between 50 and 2000 *** Make X a random number between 50 and 2000
rand x 50 2000 rand x 50 2000
``` ```
@@ -455,13 +453,6 @@ mydata:
190 87 195 232 173 60 195 89 111 33 13 10 0 190 87 195 232 173 60 195 89 111 33 13 10 0
``` ```
## REM
A remark -- ie a comment that the BASIC interpreter ignores. Example:
```
rem *** This routine calculates the cuteness of kittens ***
```
## RENAME ## RENAME
Renames one file to another. Literal strings and string variables are allowed. Afterwards, R contains 0 if the operation was a success, 1 if the file was not found, 2 if the write operation failed, or 3 if the target file already exists. Example: Renames one file to another. Literal strings and string variables are allowed. Afterwards, R contains 0 if the operation was a success, 1 if the file was not found, 2 if the write operation failed, or 3 if the target file already exists. Example: