Is there a way to use b_output to print in the same line, like printf("\r") parameter

[WEREMSOFT]

I'm debuging a problem with getting keys from the keyboard in a loop, and I'm printing the b_input value in a loop

while (key != ASCII_SPACE)
	{
		key = b_input();
		debug_print("key %d\n", &key);
	}

but I have the output like

0
0
0
0
0
0
.
.
.

or, if I ommit the \n parameter
0000000000

is there a way to implement the \r printf command?

Thanks

[macpacheco]

For b_output to serial characters are interpreted by whatever software receives the characters outside BM.
I think you're dealing with the graphical console, try "key %d\r".

output_chars_nextchar:
        jrcxz output_chars_done
        dec rcx
        lodsb                           ; Get char from string and store in AL
        cmp al, 13                      ; Check if there was a newline character in the string
        je output_chars_newline         ; If so then we print a new line
        cmp al, 10                      ; Check if there was a newline character in the string
        je output_chars_newline         ; If so then we print a new line
        cmp al, 9
        je output_chars_tab
        call output_char
        jmp output_chars_nextchar

output_chars_newline:
        mov al, [rsi]
        cmp al, 10
        je output_chars_newline_skip_LF
        call output_newline
        jmp output_chars_nextchar

output_chars_newline handles 13 (\n) and 10 (\r) differently.

[IanSeyler]

So \r should just wrap back to the first column?

[WEREMSOFT]

In printf yes. But it didn’t worked for me on my current code. I need to check if im missing something, but so far the \r is just ignored.

[IanSeyler]

Understood. I will see about implementing this in BareMetal-Monitor

[IanSeyler]

This is fixed in the latest code.

I added code to deal with a carriage return \r properly. It clears the current line of output.

I updated the demo assembly apps as well to use \n's as well. I had the values swapped.

0x0D is a newline. 0x0A is a carriage return.

[WEREMSOFT]

Ill check. Thanks.

[WEREMSOFT]

Yep, working fine, I will create a demo showing how to implement a progress bar with this.