Mercurial > hg > Members > mitsuki > xv6_rpi2_port
view loader.S @ 0:ed10291ff195
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author | mir3636 |
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date | Sun, 06 Jan 2019 19:27:03 +0900 |
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/* * loader.S * * Created on: Feb 11, 2017 * Author: Mahdi Amiri */ .text .globl _start _start: b loader_start /* branch to the code */ b loader_sleep // undefined b loader_sleep // svc b loader_sleep // prefetch b loader_sleep // abort b loader_sleep // hypervisor b loader_sleep // irq b loader_sleep // fiq .balign 4 loader_sleep: wfi b loader_sleep loader_start: // Switch to SVC mode, all interrupts disabled .set PSR_MODE_SVC, 0x13 .set PSR_MODE_IRQ_DISABLED, (1<<7) .set PSR_MODE_FIQ_DISABLED, (1<<6) msr cpsr_c, #(PSR_MODE_SVC + PSR_MODE_FIQ_DISABLED + PSR_MODE_IRQ_DISABLED) // Set all CPUs to wait except the primary CPU mrc p15, 0, r0, c0, c0, 5 ands r0, r0, #0x03 bne loader_sleep mov pc, #0x8000 .data .align 4 _data_start: .incbin "kernel7.bin" _data_end: