fr_add.cuh File Reference

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Macros
#define	FR_ADD(Z, X, Y)
	Device macro for Z = X+Y with overflow check. More...

Macro Definition Documentation

FR_ADD

#define FR_ADD	(		Z,
			X,
			Y
	)

Value:

    /* z = x + y */ \
 \
    "\n\tadd.u64.cc  "#Z"0, "#X"0, "#Y"0;" \
    "\n\taddc.u64.cc "#Z"1, "#X"1, "#Y"1;" \
    "\n\taddc.u64.cc "#Z"2, "#X"2, "#Y"2;" \
    "\n\taddc.u64.cc "#Z"3, "#X"3, "#Y"3;" \
    "\n\taddc.u32    t4,  0,   0;" \
 \
    /* if z >= 2^256 then z -= rmmu0 */ \
 \
    "\n\tsetp.ne.u32 nz, t4, 0;" \
    "\n@nz\tsub.u64.cc  "#Z"0, "#Z"0, 0xFFFFFFFE00000002U;" \
    "\n@nz\tsubc.u64.cc "#Z"1, "#Z"1, 0xA77B4805FFFCB7FDU;" \
    "\n@nz\tsubc.u64.cc "#Z"2, "#Z"2, 0x6673B0101343B00AU;" \
    "\n@nz\tsubc.u64.cc "#Z"3, "#Z"3, 0xE7DB4EA6533AFA90U;" \
    "\n@nz\tsubc.u32    t4, t4, 0;" \
 \
    /* if z >= 2^256 then z -= rmmu0 */ \
 \
    "\n\tsetp.ne.u32 nz, t4, 0;" \
    "\n@nz\tsub.u64.cc  "#Z"0, "#Z"0, 0xFFFFFFFE00000002U;" \
    "\n@nz\tsubc.u64.cc "#Z"1, "#Z"1, 0xA77B4805FFFCB7FDU;" \
    "\n@nz\tsubc.u64.cc "#Z"2, "#Z"2, 0x6673B0101343B00AU;" \
    "\n@nz\tsubc.u64.cc "#Z"3, "#Z"3, 0xE7DB4EA6533AFA90U;"

Device macro for Z = X+Y with overflow check.

Parameters

[out]	Z	destination register
[in]	X	first operand
[in]	Y	second operand

Returns

void

Definition at line 14 of file fr_add.cuh.