How to Open Include File 'Io.Mac' Assembly

fatal: unable to open include file `system.inc'

Looks like you skipped the previous chapter - see section 11.5.5 Using an Include File. You just need to copy and paste the various defines etc there into your own system.inc.

unable to open include file `test.inc` in sasm

You can solve this issue by going to Options -> Build and then selecting the “Build in current directory” option in the SASM Program

NASM unable to open include file asm_io.inc. Doesn't it come with NASM?

I guess you are using some code of Paul Carters tutorial. If this is the case you need to download asm_io.inc from http://pacman128.github.io/pcasm/

Can't include a file in NASM

It seems that NASM include the files from the current directory :

Include files are searched for in the current directory (the directory you're in when you run NASM, as opposed to the location of the NASM executable or the location of the source file), plus any directories specified on the NASM command line using the -i option.

If you are executing NASM from another directory that D:\ASMT in your case, it is normal that it doesn't work.

Source : http://www.nasm.us/doc/nasmdoc4.html#section-4.6.1

Open and read file in mips

Your code is correct. However, according to MARS syscall specifications, on issuing a syscall for opening a file, if $v0 gets a negative value, it means there was a problem in opening the file.

You can verify that by assembling the code in MARS, putting a breakpoint on

move $s0, $v0

and inspecting the contents of $s0 after this line executes (or alternatively print $s0 as an integer using syscall 1 in $v0).

If this is negative, (most likely in your case?) - it means the file couldn't be opened by the JAVA process that is MARS.

The above link also says "The underlying file I/O implementation uses java.io.FileInputStream.read() to read and java.io.FileOutputStream.write() to write."

Note that you are trying to open a relative path "hundredints.bin" (relative to the MARS Java process's home directory). Hence, JAVA process MARS should run from the same directory as your code and file that you are trying to open.

You can do this by issuing the following in your code-and-file directory (MAC or Linux, assuming java is installed!)-

java -jar Mars.jar

(Or an equivalent arrangement in Windows).

Verifying if the MARS JAVA process's home is indeed your code's home-

Just 'open' a file in MARS. It should directly show the contents of your directory. :)

I've tested this in Ubuntu. Hope this helps!

nasm: fatal: Unable to open input file

Your problem appears to be with the file you are trying to open, not with the nasm application.

Make sure the file exists h1.asm exists in the current directory that you are running the command from.

For example, if the file exists on the Desktop then perform this:

cd ~/Desktop
nasm -f macho h1.asm

or

nasm -f macho ~/Desktop/h1.asm

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