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/*
* magnum user level lock code
*/
#define LL(base, rt) WORD $((060<<26)|((base)<<21)|((rt)<<16))
#define SC(base, rt) WORD $((070<<26)|((base)<<21)|((rt)<<16))
#define NOOP WORD $0x27
#define COP3 WORD $(023<<26)
TEXT C_3ktas(SB),$0
MOVW R1, R21
btas:
MOVW R21, R1
MOVB R0, 1(R1)
NOOP
COP3
BLTZ R1, btas
RET
TEXT C_4ktas(SB), $0
MOVW R1, R2 /* address of key */
tas1:
MOVW $1, R3
LL(2, 1)
NOOP
SC(2, 3)
NOOP
BEQ R3, tas1
RET
TEXT C_fcr0(SB), $0
MOVW FCR0, R1
RET
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