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