crt0.s

来自「ADS下的bios工程」· S 代码 · 共 47 行

#include <bios/s3c2410x.h>
#include <bios/linkage.h>

	.text

@ Entry
	.globl	_entry
_entry:
	mrc     p15, 0, r3, c1, c0, 0
	bic     r3, r3, #0x4
	mcr     p15, 0, r3, c1, c0, 0		/* Data cache disable */

	bl	SYMBOL_NAME(start_update)
	b	.

ENTRY(call_swi)
	stmfd   sp!, {lr}
	swi	#0x000000
	ldmfd   sp!, {pc}

/*-----------------------------------------------
 * void ReadRegister1(void)
 *      r0 : R1_iA, R1_nF, R1_RR, R1_V, R1_I,
 *           R1_R, R1_S, R1_B, R1_C, R1_A, R1_M
 */
ENTRY(ReadRegister1)
	mrc     p15, 0, r0, c1, c0, 0
	mov     pc,lr

/*------------------------------------
 * void InvalidateTLBID(unsigned int MVA)
 */
ENTRY(InvalidateTLB)
	mcr     p15, 0, r0, c8, c5, 1
	mcr     p15, 0, r0, c8, c6, 1
	nop
	nop
	nop
	mov     pc,lr


	.ltorg
/*------------------------------------------------------
 * Define variable
 ------------------------------------------------------*/
	.align 4