Slightly improved the reboot patch, added emuNAND patch improvements from CakesFW, made the emuNAND patch completely version-independent

Should work as-is with future firmwares!
This commit is contained in:
Aurora
2016-03-21 03:20:15 +01:00
parent 6b88953517
commit a437e533f5
6 changed files with 30 additions and 29 deletions

View File

@@ -1,9 +1,6 @@
.nds
.arm.little
sdmmc equ 0x434D4453 ;dummy
.create "emunand.bin", 0x0801A5C0
.org 0x0801A5C0
.create "emunand.bin", 0
.arm
nand_sd:
; Original code that still needs to be executed.
@@ -15,7 +12,7 @@ nand_sd:
; If we're already trying to access the SD, return.
ldr r2, [r0, #4]
ldr r1, =sdmmc
ldr r1, [sdmmc]
cmp r2, r1
beq nand_sd_ret
@@ -23,12 +20,10 @@ nand_sd:
ldr r2, [r0, #8] ; Get sector to read
cmp r2, #0 ; For GW compatibility, see if we're trying to read the ncsd header (sector 0)
ldr r3, =nand_offset
ldr r3, [r3]
ldr r3, [nand_offset]
add r2, r3 ; Add the offset to the NAND in the SD.
ldreq r3, =ncsd_header_offset
ldreq r3, [r3]
ldreq r3, [ncsd_header_offset]
addeq r2, r3 ; If we're reading the ncsd header, add the offset of that sector.
str r2, [r0, #8] ; Store sector to read
@@ -45,6 +40,7 @@ nand_sd:
add r0, #4
bx r0
.pool
sdmmc: .ascii "SDMC"
nand_offset: .ascii "NAND" ; for rednand this should be 1
ncsd_header_offset: .ascii "NCSD" ; depends on nand manufacturer + emunand type (GW/RED)
.close