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PROG024.ASM
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Assembly Source File
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1988-06-28
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1KB
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33 lines
;************************************************************************
; Get current size of the cursor from the BIOS data area *
; Entry: Start - Pointer to where to save the starting value *
; Stop - Pointer to where to save the ending value *
; Exit: Values at the pointers are set to proper values *
;************************************************************************
Start EQU [BP+4]
Stop EQU [BP+6]
PUBLIC _Get_Cursor_Size
_Get_Cursor_Size PROC NEAR
PUSH BP
MOV BP,SP
PUSH SI ;Preserve SI
PUSH ES ;Preserve ES
XOR AX,AX ;Set ES to segment zero
MOV ES,AX
MOV BX,ES:[BIOS_Curs_Mode] ;Fetch cursor size
MOV SI,Start ;Fetch pointer to save
MOV AL,BH ;Fetch start value
MOV [SI],AX ;Save starting value
MOV SI,Stop ;Fetch pointer to save
MOV AL,BL ;Fetch stop value
MOV [SI],AX ;Save ending value
POP ES ;Restore segment registers
POP SI
POP BP
RET
_Get_Cursor_Size ENDP