cop1.h File Reference

N64 COP1 Interface. More...

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Macros
#define	C1_FLAG_INEXACT_OP   0x00000004
	Flag recording inexact operation.
#define	C1_FLAG_UNDERFLOW   0x00000008
	Flag recording underflow.
#define	C1_FLAG_OVERFLOW   0x00000010
	Flag recording overflow.
#define	C1_FLAG_DIV_BY_0   0x00000020
	Flag recording division by zero.
#define	C1_FLAG_INVALID_OP   0x00000040
	Flag recording invalid operation.
#define	C1_ENABLE_INEXACT_OP   0x00000080
	Enable inexact operation exception.
#define	C1_ENABLE_UNDERFLOW   0x00000100
	Enable underflow exception.
#define	C1_ENABLE_OVERFLOW   0x00000200
	Enable overflow exception.
#define	C1_ENABLE_DIV_BY_0   0x00000400
	Enable division by zero exception.
#define	C1_ENABLE_INVALID_OP   0x00000800
	Enable invalid operation exception.
#define	C1_ENABLE_MASK   0x00000F80
	Mask for all enable bits.
#define	C1_CAUSE_INEXACT_OP   0x00001000
	Triggered inexact operation exception.
#define	C1_CAUSE_UNDERFLOW   0x00002000
	Triggered underflow exception.
#define	C1_CAUSE_OVERFLOW   0x00004000
	Triggered overflow exception.
#define	C1_CAUSE_DIV_BY_0   0x00008000
	Triggered division by zero exception.
#define	C1_CAUSE_INVALID_OP   0x00010000
	Triggered invalid operation exception.
#define	C1_CAUSE_NOT_IMPLEMENTED   0x00020000
	Triggered not implemented exception.
#define	C1_CAUSE_MASK   0x0003F000
	Mask for all cause bits.
#define	C1_FCR31_FS   (1<<24)
	Flush denormals to zero/min.
#define	C1_FCR31()
	Read the COP1 FCR31 register (floating-point control register 31)
#define	C1_WRITE_FCR31(x)
	Write to the COP1 FCR31 register.

Detailed Description

N64 COP1 Interface.

The coprocessor 1 (COP1) is implemented as a floating point unit (FPU)