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Document FPSCR fields

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Tillmann Karras 2013-10-22 20:50:44 +02:00 committed by degasus
parent 8aef60f6ca
commit 69a10869bb
1 changed files with 27 additions and 0 deletions
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27
Source/Core/Core/Src/PowerPC/Gekko.h
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@ -389,32 +389,59 @@ union UReg_FPSCR
{
struct
{
// Rounding mode (towards: nearest, zero, +inf, -inf)
u32 RN : 2;
// Non-IEEE mode enable (aka flush-to-zero)
u32 NI : 1;
// Inexact exception enable
u32 XE : 1;
// IEEE division by zero exception enable
u32 ZE : 1;
// IEEE underflow exception enable
u32 UE : 1;
// IEEE overflow exception enable
u32 OE : 1;
// Invalid operation exception enable
u32 VE : 1;
// Invalid operation exception for integer conversion (sticky)
u32 VXCVI : 1;
// Invalid operation exception for square root (sticky)
u32 VXSQRT : 1;
// Invalid operation exception for software request (sticky)
u32 VXSOFT : 1;
// reserved
u32 : 1;
// Floating point result flags (not sticky)
u32 FPRF : 5;
// Fraction inexact (not sticky)
u32 FI : 1;
// Fraction rounded (not sticky)
u32 FR : 1;
// Invalid operation exception for invalid comparison (sticky)
u32 VXVC : 1;
// Invalid operation exception for inf * 0 (sticky)
u32 VXIMZ : 1;
// Invalid operation exception for 0 / 0 (sticky)
u32 VXZDZ : 1;
// Invalid operation exception for int / inf (sticky)
u32 VXIDI : 1;
// Invalid operation exception for inf - inf (sticky)
u32 VXISI : 1;
// Invalid operation exception for SNaN (sticky)
u32 VXSNAN : 1;
// Inexact exception (sticky)
u32 XX : 1;
// Division by zero exception (sticky)
u32 ZX : 1;
// Underflow exception (sticky)
u32 UX : 1;
// Overflow exception (sticky)
u32 OX : 1;
// Invalid operation exception summary (not sticky)
u32 VX : 1;
// Enabled exception summary (not sticky)
u32 FEX : 1;
// Exception summary (sticky)
u32 FX : 1;
};
u32 Hex;