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Fixed capitalisation
Prior to 3.0.0, ro was included as part of [[Loader services]]. Despite the separation, the service name ldr:ro is retained to maintain compatibility with old games.
= ldr:ro, ro:1 =
[1.0.0-2.3.0] This is "nn::ldr::detail::IRoInterface"
[3.0.0+] This is "nn::ro::detail::IRoInterface".
[7.0.0+] ro:1 was added, and also creates nn::ro::detail::IRoInterface objects.
{| class="wikitable" border="1"
|-
! Cmd || Name
|-
| 0 || [[#LoadNro]]
|-
| 1 || UnloadNro
|-
| 2 || [[#LoadNrr]]
|-
| 3 || UnloadNrr
|-
| 4 || [[#Initialize]]
|-
| 10 || [7.0.0+] [[#LoadNrrEx]]
|}
== LoadNro ==
{| class="wikitable" border="1"
|-
! Word || Value
|-
| 0 || 0x00000004
|-
| 1 || 0x80000012
|-
| 2 || 0x00000001
|- style="border-top: double"
| 0-1 || Pid
|- style="border-top: double"
| 0 || "SCFI"
|-
| 1 || 0x00000000
|-
| 2 || Always 0.
|-
| 3 || Nro heap address
|-
| 4 || Nro size
|-
| 5 || Bss backing heap address
|-
| 6 || Bss size
|}
== LoadNrr ==
[7.0.0+] A new 8-bit field at NRR + 0x33C (previously padding) must be 0 for this function to succeed.
{| class="wikitable" border="1"
|-
! Word || Value
|-
| 0 || 0x00000004
|-
| 1 || 0x8000000E
|-
| 2 || 0x00000001
|-
|- style="border-top: double"
| 0-1 || Pid
|- style="border-top: double"
| 0 || "SFCI"
|-
| 1 || 0x00000002
|-
| 2 || Always 0.
|-
| 3 || Nrr address
|-
| 4 || Nrr size
|}
== Initialize ==
{| class="wikitable" border="1"
|-
! Word || Value
|-
| 0 || 0x00000004
|-
| 1 || 0x8000000A
|-
| 2 || 0x00000003
|- style="border-top: double"
| 0-1 || Pid
|-
| 2 || Process handle (0xFFFF8001)
|- style="border-top: double"
| 0 || "SFCI"
|-
| 1 || 0x00000004
|-
| 2 || Always 0.
|}
== LoadNrrEx ==
Takes in a u64 nrr_address, a u64 nrr_size, a pid descriptor, and a process handle.
First, this validates that the pid descriptor matches the pid for the process handle sent to this->Initialize() earlier.
Then, this calls the same function as LoadNrr, except using the passed process handle instead of the one sent to Initialize.
When called from an ro:1 session, the field at NRR header + 0x33C must be 0x1. When called from ldr:ro session, the field at NRR header + 0x33C must be 0x0.
[[Category:Services]]
= ldr:ro, ro:1 =
[1.0.0-2.3.0] This is "nn::ldr::detail::IRoInterface"
[3.0.0+] This is "nn::ro::detail::IRoInterface".
[7.0.0+] ro:1 was added, and also creates nn::ro::detail::IRoInterface objects.
{| class="wikitable" border="1"
|-
! Cmd || Name
|-
| 0 || [[#LoadNro]]
|-
| 1 || UnloadNro
|-
| 2 || [[#LoadNrr]]
|-
| 3 || UnloadNrr
|-
| 4 || [[#Initialize]]
|-
| 10 || [7.0.0+] [[#LoadNrrEx]]
|}
== LoadNro ==
{| class="wikitable" border="1"
|-
! Word || Value
|-
| 0 || 0x00000004
|-
| 1 || 0x80000012
|-
| 2 || 0x00000001
|- style="border-top: double"
| 0-1 || Pid
|- style="border-top: double"
| 0 || "SCFI"
|-
| 1 || 0x00000000
|-
| 2 || Always 0.
|-
| 3 || Nro heap address
|-
| 4 || Nro size
|-
| 5 || Bss backing heap address
|-
| 6 || Bss size
|}
== LoadNrr ==
[7.0.0+] A new 8-bit field at NRR + 0x33C (previously padding) must be 0 for this function to succeed.
{| class="wikitable" border="1"
|-
! Word || Value
|-
| 0 || 0x00000004
|-
| 1 || 0x8000000E
|-
| 2 || 0x00000001
|-
|- style="border-top: double"
| 0-1 || Pid
|- style="border-top: double"
| 0 || "SFCI"
|-
| 1 || 0x00000002
|-
| 2 || Always 0.
|-
| 3 || Nrr address
|-
| 4 || Nrr size
|}
== Initialize ==
{| class="wikitable" border="1"
|-
! Word || Value
|-
| 0 || 0x00000004
|-
| 1 || 0x8000000A
|-
| 2 || 0x00000003
|- style="border-top: double"
| 0-1 || Pid
|-
| 2 || Process handle (0xFFFF8001)
|- style="border-top: double"
| 0 || "SFCI"
|-
| 1 || 0x00000004
|-
| 2 || Always 0.
|}
== LoadNrrEx ==
Takes in a u64 nrr_address, a u64 nrr_size, a pid descriptor, and a process handle.
First, this validates that the pid descriptor matches the pid for the process handle sent to this->Initialize() earlier.
Then, this calls the same function as LoadNrr, except using the passed process handle instead of the one sent to Initialize.
When called from an ro:1 session, the field at NRR header + 0x33C must be 0x1. When called from ldr:ro session, the field at NRR header + 0x33C must be 0x0.
[[Category:Services]]