diff options
Diffstat (limited to 'c/src/lib/libcpu/m68k/m68040/fpsp/x_unfl.S')
| -rw-r--r-- | c/src/lib/libcpu/m68k/m68040/fpsp/x_unfl.S | 32 |
1 files changed, 16 insertions, 16 deletions
diff --git a/c/src/lib/libcpu/m68k/m68040/fpsp/x_unfl.S b/c/src/lib/libcpu/m68k/m68040/fpsp/x_unfl.S index 3a8d481dd7..fa13a46ce8 100644 --- a/c/src/lib/libcpu/m68k/m68040/fpsp/x_unfl.S +++ b/c/src/lib/libcpu/m68k/m68040/fpsp/x_unfl.S @@ -6,25 +6,25 @@ // fpsp_unfl --- FPSP handler for underflow exception // // Trap disabled results -// For 881/2 compatibility, sw must denormalize the intermediate -// result, then store the result. Denormalization is accomplished -// by taking the intermediate result (which is always normalized) and -// shifting the mantissa right while incrementing the exponent until -// it is equal to the denormalized exponent for the destination -// format. After denormalization, the result is rounded to the +// For 881/2 compatibility, sw must denormalize the intermediate +// result, then store the result. Denormalization is accomplished +// by taking the intermediate result (which is always normalized) and +// shifting the mantissa right while incrementing the exponent until +// it is equal to the denormalized exponent for the destination +// format. After denormalization, the result is rounded to the // destination format. -// +// // Trap enabled results -// All trap disabled code applies. In addition the exceptional -// operand needs to made available to the user with a bias of $6000 +// All trap disabled code applies. In addition the exceptional +// operand needs to made available to the user with a bias of $6000 // added to the exponent. // // Copyright (C) Motorola, Inc. 1990 // All Rights Reserved // -// THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF MOTOROLA -// The copyright notice above does not evidence any +// THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF MOTOROLA +// The copyright notice above does not evidence any // actual or intended publication of such source code. X_UNFL: //idnt 2,1 | Motorola 040 Floating Point Software Package @@ -93,7 +93,7 @@ ck_inex: // // Inexact enabled and reported, and we must take an inexact exception -// +// take_inex: btstb #E3,E_BYTE(%a6) beqs no_e3_2 @@ -147,7 +147,7 @@ unf_res: // ;1=sgl, 2=dbl // ;we need the RND_PREC in the // ;upper word for round - movew #0,-(%a7) + movew #0,-(%a7) movew %d0,-(%a7) //copy RND_PREC to stack // // @@ -201,7 +201,7 @@ unf_cont: // must not corrupt a0 and d0. // // -// Perform Round +// Perform Round // Input: a0 points to input operand // d0{31:29} has guard, round, sticky // d1{01:00} has rounding mode @@ -224,7 +224,7 @@ opc011: bsrl g_dfmtou tstb %d0 beqs ext_opc011 //If extended, do not subtract -// ;If destination format is sgl/dbl, +// ;If destination format is sgl/dbl, tstb LOCAL_HI(%a0) //If rounded result is normal,don't // ;subtract bmis ext_opc011 @@ -259,7 +259,7 @@ ck_sgn: bsetb #neg_bit,FPSR_CC(%a6) // -// Finish. +// Finish. // unf_done: btstb #inex2_bit,FPSR_EXCEPT(%a6) |