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U 的代码
tran.u
|* Trig Approximations
|* enter with:
|* x in recovery register
|* loop counter set to no. of constants
|* pointer 5 pointing at last constant (they are in reverse order)
|*
|* exit with:
|* z in A
dp.u
|* @(#)dp.u 1.1 92/07/30 Copyright Sun Microsystems, Inc. 1988
|*
|* Double Precision NOP Instruction
|*
routine dp.nop 0000000xxxx1 dnop; ; ;
jclr clp idl2; dnop; ; ;
call idle1; dnop;
dlnxp.u
|* @(#)dlnxp.u 1.1 92/07/30 Copyright Sun Microsystems, Inc. 1988
|*
|* Double Precision Log of (X+1)
|*
|* D0: int k
|* D1: DP z
|* D2: DP t
|* D3: DP c
|* D4: DP s
|* D5: DP k
routine xd.ln1 00100
sp.u
|* @(#)sp.u 1.1 92/07/30 Copyright Sun Microsystems, Inc. 1988
|*
|* Single Precison Add Instruction
|*
routine sp.add 0000111xxxx0 snop enrb halt; adtoti; imm2;
; sadd enra halt; regtitmp;
slnx.u
|* @(#)slnx.u 1.1 92/07/30 Copyright Sun Microsystems, Inc. 1988
|*
|* Single Precision ln (x)
|*
routine xs.ln 001000001110 ; regtotmp; rcssp imm2;
call ckmode; ; ; ;
|* get: i = ( (j+0x00
sexp.u
|* @(#)sexp.u 1.1 92/07/30 Copyright Sun Microsystems, Inc. 1988
|*
|* Single Precision exp (x)
|*
routine xs.ex 001000001100 ; regtotmp; rcssp imm2;
; ; ; ptr5; ptr5!c_ssin
; smul enra
sexpm.u
|* @(#)sexpm.u 1.1 92/07/30 Copyright Sun Microsystems, Inc. 1988
|*
|* Single Precision ==> exp(x) - 1 Instruction
|*
|* This routine is the Double precision exp(x) - 1, with a call of dfloat at
slnxp.u
|* @(#)slnxp.u 1.1 92/07/30 Copyright Sun Microsystems, Inc. 1988
|*
|* Single Precision Log of (X+1)
|*
|* This routine is the Double precision log(x+1), with a call of dfloat at the beginning of
diag.u
|* @(#)diag.u 1.1 92/07/30 Copyright Sun Microsystems, Inc. 1988
|*
|* Copyright (c) 1989, Sun Microsystems, Inc. All Rights Reserved.
|* Sun considers its source code as an unpublished, propriet
sincos.u
|* @(#)sincos.u 1.1 92/07/30 Copyright Sun Microsystems, Inc. 1988, 1989
|*
|* Double precisioin Sin, Cos, SinCos.
|* lpreg is 0 for cos, 1 for sin, 2 for sincos
|*
routine xd.sin 001000000001