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AT697F Datasheet(PDF) 82 Page - ATMEL Corporation |
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AT697F Datasheet(HTML) 82 Page - ATMEL Corporation |
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82 / 155 page  82 7703C–AERO–6/09 AT697F ADVANCE INFORMATION Floating Point Unit Registers Table 40. FPU Status register - FSR 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 rd[1:0] tem[4:0] ns ver[2:0] ftt[2:0] fcc[1:0] aexc[4:0] cexc[4:0] r/w r/w r/w r r/w r r r/w r r r xx xx 00000 x xx 001 xxx xx xxx xxxxx 00000 local l7 local register 7 l6 local register 6 l5 local register 5 l4 local register 4 l3 local register 3 l2 nPC (for RETT) l1 PC (for RETT) l0 local register 0 out o7 temp o6 stack pointer o5 outgoing parameter register 5 o4 outgoing parameter register 4 o3 outgoing parameter register 3 o2 outgoing parameter register 2 o1 outgoing parameter register 1 o0 outgoing parameter register 0 global g7 global register 7 g6 global register 6 g5 global register 5 g4 global register 4 g3 global register 3 g2 global register 2 g1 global register 1 g0 global register 0 - always 0x00000000 Table 39. Window Registers Type Name Definition Bit Number Mnemonic Description 31..30 rd[1:0] Rounding Direction Defines the rounding direction used by the AT697 FPU during a floating-point arithmetic operation. |
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