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[iQue] Match skapi.s, create bbskapi.h documenting the syscalls (#2400)

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Tharo 2025-01-04 03:58:26 +00:00 • committed by GitHub
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8 changed files with 421 additions and 41 deletions
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include/ultra64/bcp.h Normal file
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#ifndef BCP_H
#define BCP_H
#include "rcp.h"
/******************************************************************************
* Additional MIPS Interface (MI) Registers
*/
/**
* Accesses to this register outside of Secure Mode cause an NMI to transfer control
* to the Secure Kernel.
*
* [25] ?: System software writes to this bit when launching an app or game
* [24] SK RAM Access: Set to 1 to enable access to 0x8000 bytes at 0x1FC40000
* [7] Secure Trap Cause: Memory card removed
* [6] Secure Trap Cause: Power button pressed
* [5] Secure Trap Cause: MI Error
* [4] Secure Trap Cause: PI Error
* [3] Secure Trap Cause: Timer expired
* [2] Secure Trap Cause: Syscall via read of this register outside of secure mode
* [1] Boot ROM Swap: 0 = SK mapped at 0x1FC00000, Boot ROM mapped at 0x1FC20000
* 1 = Boot ROM mapped at 0x1FC00000, SK mapped at 0x1FC20000
* [0] Secure Mode: 0 = not in secure mode
* 1 = in secure mode
*/
#define MI_SECURE_EXCEPTION_REG (MI_BASE_REG + 0x14)
#endif