LowLevel/Luma3DS-3GX
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Minor stuff

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Aurora
2016-10-23 03:47:10 +02:00
parent 4f53b3ce35
commit 127ae6b945
1 changed files with 12 additions and 11 deletions
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23
patches/reboot.s
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@@ -57,7 +57,7 @@ sd_notmounted equ 0xC8804465 ; Error code returned when SD is not mounted
; Copy the low TID (in UTF-16) of the wanted firm to the 5th byte of the payload ; Copy the low TID (in UTF-16) of the wanted firm to the 5th byte of the payload
ldr r0, =payload_addr + 4 ldr r0, =payload_addr + 4
add r1, r8, 0x1A add r1, r8, #0x1A
mov r2, #0x10 mov r2, #0x10
bl memcpy16 bl memcpy16
@@ -87,9 +87,9 @@ sd_notmounted equ 0xC8804465 ; Error code returned when SD is not mounted
bx lr bx lr
panic: panic:
mov r1, r0 ; unused register mov r1, r0 ; unused register
mov r0, #0 mov r0, #0
swi 0x3C ; svcBreak(USERBREAK_PANIC) swi 0x3C ; svcBreak(USERBREAK_PANIC)
b die b die
bytes_read: .word 0 bytes_read: .word 0
@@ -104,18 +104,18 @@ nand_mount: .dcw "nand"
kernelcode_start: kernelcode_start:
; Disable MPU ; Disable MPU
ldr r0, =0x42078 ; alt vector select, enable itcm ldr r0, =0x42078 ; alt vector select, enable itcm
mcr p15, 0, r0, c1, c0, 0 mcr p15, 0, r0, c1, c0, 0
; Clean and flush data cache ; Clean and flush data cache
mov r1, #0 ; segment counter mov r1, #0 ; segment counter
outer_loop: outer_loop:
mov r0, #0 ; line counter mov r0, #0 ; line counter
inner_loop: inner_loop:
orr r2, r1, r0 ; generate segment and line address orr r2, r1, r0 ; generate segment and line address
mcr p15, 0, r2, c7, c14, 2 ; clean and flush the line mcr p15, 0, r2, c7, c14, 2 ; clean and flush the line
add r0, #0x20 ; increment to next line add r0, #0x20 ; increment to next line
cmp r0, #0x400 cmp r0, #0x400
bne inner_loop bne inner_loop
@@ -123,7 +123,8 @@ nand_mount: .dcw "nand"
cmp r1, #0 cmp r1, #0
bne outer_loop bne outer_loop
mcr p15, 0, r1, c7, c10, 4 ; drain write buffer ; Drain write buffer
mcr p15, 0, r1, c7, c10, 4
; Flush instruction cache ; Flush instruction cache
mcr p15, 0, r1, c7, c5, 0 mcr p15, 0, r1, c7, c5, 0
@@ -133,4 +134,4 @@ nand_mount: .dcw "nand"
bx r0 bx r0
.pool .pool
.close .close