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ad_save_user_regs<br />
bl do_data_abort<br />
.align 5<br />
not_used:<br />
get_bad_stack<br />
bad_save_user_regs<br />
bl do_not_used<br />
以上几个宏,和前面的do_undefined_instruction是类似的,就不多说了。<br />
@ HJ<br />
.globl Launch<br />
.align 4<br />
Launch:<br />
mov r7, r0<br />
@ diable interrupt<br />
@ disable watch dog timer<br />
mov r1, #0x53000000<br />
mov r2, #0x0<br />
str r2, [r1]<br />
ldr r1,=INTMSK<br />
ldr r2,=0xffffffff @ all interrupt disable<br />
str r2,[r1]<br />
ldr r1,=INTSUBMSK<br />
ldr r2,=0x7ff @ all sub interrupt disable<br />
str r2,[r1]<br />
ldr r1, = INTMOD<br />
mov r2, #0x0 @ set all interrupt as IRQ (not FIQ)<br />
str r2, [r1]<br />
@<br />
mov ip, #0<br />
mcr p15, 0, ip, c13, c0, 0 @ /* zero PID */<br />
mcr p15, 0, ip, c7, c7, 0 @ /* invalidate I,D caches */<br />
mcr p15, 0, ip, c7, c10, 4 @ /* drain write buffer */<br />
mcr p15, 0, ip, c8, c7, 0 @ /* invalidate I,D TLBs */<br />
mrc p15, 0, ip, c1, c0, 0 @ /* get control register */<br />
bic ip, ip, #0x0001 @ /* disable MMU */<br />
mcr p15, 0, ip, c1, c0, 0 @ /* write control register */
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