source: xtideuniversalbios/trunk/Assembly_Library/Src/TimerTest.asm@ 274

; Project name  :   Assembly Library
; Description   :   Tests for Assembly Library.

; Include .inc files
%define INCLUDE_DISPLAY_LIBRARY
%define INCLUDE_TIME_LIBRARY
%include "AssemblyLibrary.inc"  ; Assembly Library. Must be included first!


; Section containing code
SECTION .text

; Program first instruction.
ORG 100h                        ; Code starts at offset 100h (DOS .COM)
Start:
    jmp     TimerTest_Start

; Include library sources
%include "AssemblyLibrary.asm"


;--------------------------------------------------------------------
; Program start
;--------------------------------------------------------------------
ALIGN JUMP_ALIGN
TimerTest_Start:    
    CALL_DISPLAY_LIBRARY InitializeDisplayContext

    call    SystemTimer_IntializePreciseEventTimer

    START_PRECISE_EVENT_TIMER
    mov     ax, MICROSECONDS_TO_WAIT
    call    Delay_MicrosecondsFromAX
    STOP_PRECISE_EVENT_TIMER

    call    SystemTimer_ReadNanosecsToDXAXfromPreciseEventTimer
    call    PrintNanosecsFromDXAX

    ; Exit to DOS
    mov     ax, 4C00h           ; Exit to DOS
    int     21h


ALIGN JUMP_ALIGN
PrintNanosecsFromDXAX:
    mov     cx, 1000
    div     cx                  ; AX = us waited
    
    mov     bp, sp
    ePUSH_T cx, MICROSECONDS_TO_WAIT
    push    ax
    mov     si, g_szMicrosecsWaited
    CALL_DISPLAY_LIBRARY FormatNullTerminatedStringFromCSSI
    ret



; Section containing initialized data
SECTION .data

MICROSECONDS_TO_WAIT        EQU     7000

g_szMicrosecsWaited:
    db  "Was supposed to wait %u us but actually waited %u us.",LF,CR,NULL
g_szDashForZero:        db      "- ",NULL



; Section containing uninitialized data
SECTION .bss