kbm_stub.asm

来自「Cypress 的(鼠标+键盘)复合设备汇编源程序」· 汇编 代码 · 共 30 行

mouse_idV:        equ   mouse_RAM_baseC+0 ;mouse report ID
mouse_packetV:	equ	mouse_RAM_baseC+1	;received mouse packet storage (4 bytes)
last_mouse_packetV: equ	mouse_RAM_baseC+5	;previous received mouse packet storage (1 byte)
mouse_ramsizeC:	equ	6			;size of mouse RAM
;stub out all mouse subroutines that are called by usbmain. 
;usbmain supports a slave ps/2 mouse in usb mode, but the mouse
;code is omitted in this build.  These stubs
;exist to resolve addresses during assembly.  They may be called during
;execution, but are harmless.
mouse_suspend:
mouse_resume:
mouse_1mS_int:
mouse_int:
MouseConnectTask:
MouseTask:
ret

mouse_init_module:
    push a
    push x
    CLEARRAM mouse_RAM_baseC,mouse_ramsizeC
    mov  A,MOUSE_REPORT_ID
    mov [mouse_idV],A
    pop a
    pop x
    ret