The number of symbols is less than: JL is equal to: JE is greater than: JG is equal to or equal to: JGE is less than or equal to: JLE
The number of unsigned numbers is less than: JB is equal to: JE is greater than: JA is greater than or equal to: JAE is less than or equal to: JBE
Several important ASCII yards: Enter 0AH Wrap 0dh'0 '30h'9' 39h'a '41h'z' 5ah'a '61h'z' 7ah '20h
Several important 21 hours DOS function call
The keyboard is read and returned (08H, but not) after the AH <-01H INT 21H: Al <-ASCII
02H N # Show a character DL <- ASCII code to output display AH <-02h INT 21H
09H string output display, end DS: DX <-EA (character string first) AH <-09h int 21h
0AH string input, end DS: DX <- Buffer First Address AH <-0ah INT 21H in CRLF
