ARM VERSION 1.2 Datový list stáhnout pdf (Strana 89)

ARM Compiler Reference

__TARGET_FEATURE_HALFWORD

– If the target architecture supports halfword and signed

byte access instructions, for example v5TE.

__TARGET_FEATURE_MULTIPLY

– If the target architecture supports the long multiply

instructions

MULL

and

MULAL

__TARGET_FEATURE_THUMB

– If the target architecture is Thumb-capable (ARM

architecture v4T or later).

__TARGET_FPU_xx

– One of the following is set to indicate the FPU usage:

•

__TARGET_FPU_NONE

•

__TARGET_FPU_FPA

•

__TARGET_FPU_SOFTFPA

•

__TARGET_FPU_VFP

•

__TARGET_FPU_SOFTVFP

In addition, if compiling

-fpu softvfp+vfp

__TARGET_FPU_SOFTVFP_VFP

is also set.

See the description of the

-fpu vfp

option in

Specifying the target processor or architecture on

page 2-19 for more information on FPU options.

__thumb

– If using tcc or tcpp.

__TIME__

time When time of translation of the source file is required.

Table 3-4 Predefined macros (continued)

Name Value When defined

1 2 ... 84 85 86 87 88 89 90 91 92 93 94 ... 275 276

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ARM VERSION 1.2 Datový list Strana 89