INT 10,13 - Write String (BIOS versions from 1/10/86)

AH = 13h

AL = write mode (see bit settings below)

= 0 string is chars only, attribute in BL, cursor not moved

= 1 string is chard only, attribute in BL, cursor moved

= 2 string contains chars and attributes, cursor not moved

= 3 string contains chars and attributes, cursor moved

BH = video page number

BL = attribute if mode 0 or 1 (AL bit 1=0)

CX = length of string (ignoring attributes)

DH = row coordinate

DL = column coordinate

ES:BP = pointer to string

Bit settings for write mode (register AL):

¦7¦6¦5¦4¦3¦2¦1¦0¦ AL

¦ ¦ ¦ ¦ ¦ ¦ ¦ +---- 0=don't move cursor, 1=move cursor

¦ ¦ ¦ ¦ ¦ ¦ +----- 0=BL has attributes, 1=string has attributes

+---------------- unused

returns nothing

- BEL, BS, CR, LF are treated as ASCII control codes

- wraps data and scrolls if unable to fit data on one line