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# CONVENTION: macro only uses %AX, %SI registers
.macro BIOS_PRINT string
mov $0x0e, %ah # Set writing char in TTY mode routine
mov \string, %si # Set in Source Index reg the beginning
# address of a string
print_loop\@:
lodsb # Increase SI by 1 byte => get next char
or %al, %al # Check for a '\0'
jz print_done\@
int $0x10 # Print a char in al register
jmp print_loop\@
print_done\@:
.endm
.macro PUTCHAR char
mov $0x0e, %ah # Set writing char in TTY mode routine
mov \char, %al
int $0x10 # Print a char in al register
.endm
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