serial_periph_1_irq.mac

来自「ARM入门的好帮手.包含了从简单到相对较复杂的程序.」· MAC 代码 · 共 34 行

;------------------------------------------------------------------------------
;-      ATMEL Microcontroller Software Support  -   ROUSSET -
;------------------------------------------------------------------------------
;- File source          : serial_periph_1_irq.mac
;- Object               : Serial Peripheral Driver Interrupt Handler Macro.
;-
;- 1.0 JCZ 04/01/00     : Creation
;- 1.1 02/11/00 JPP     : Green Hills
;------------------------------------------------------------------------------

                AREA        AT91Lib, CODE, READONLY, INTERWORK

                INCLUDE     ../../periph/aic/irq.mac

                MACRO   
                SERIAL_PERIPH_1_ASM_HANDLER   $asm_handler, $c_handler, $descriptor

                IMPORT      $c_handler
                IMPORT      $descriptor
                EXPORT      $asm_handler
$asm_handler
                IRQ_ENTRY

                ldr     r1, =$c_handler
                ldr     r0, =$descriptor
                mov     r14, pc
                bx      r1

                IRQ_EXIT

                MEND

                END