INT 03 U - Watcom WVIDEO, Watcom WD - OUTPUT DEBUGGING MESSAGE
STACK: DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. selector
DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. offset of ASCIZA NUL-terminated ASCII string. The ASCIZ string "ABC" consists of the four bytes 41h, 42h, 43h, and 00h. Unless otherwise specified, maximum lengths given in the interrupt list do not include the terminating NUL. message to display
Notes: the INT 03h instruction which invokes the debugger must be followed by
a JMP SHORT and the signature string "WVIDEO"
to check whether this interface is available, define a public byte
variable named WD Present, which the debugger will set to 01h
before running the program
SeeAlso: AX=0910h