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Added prototypes for C callable multiplication routines.

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git-svn-id: svn://svn.cc65.org/cc65/trunk@4436 b7a2c559-68d2-44c3-8de9-860c34a00d81
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uz 2009-11-03 20:36:30 +00:00
parent 100c470727
commit 2135bd1543
1 changed files with 10 additions and 1 deletions
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11
include/cc65.h
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@ -44,9 +44,18 @@
unsigned long __fastcall__ cc65_umul16x16r32 (unsigned rhs, unsigned lhs);
unsigned __fastcall__ cc65_umul8x8r16 (unsigned char lhs, unsigned char rhs);
/* Multiplicate two unsigned 8 bit to yield an unsigned 16 bit result */
int __fastcall__ cc65_imul8x8r16 (signed char lhs, signed char rhs);
/* Multiplicate two signed 8 bit to yield an signed 16 bit result */
unsigned long __fastcall__ cc65_umul16x16r32 (unsigned lhs, unsigned rhs);
/* Multiplicate two unsigned 16 bit to yield an unsigned 32 bit result */
long __fastcall__ cc65_imul16x16r32 (int lhs, int rhs);
/* Multiplicate two signed 16 bit to yield a signed 32 bit result */
int __fastcall__ cc65_sin (unsigned x);
/* Return the sine of the argument, which must be in range 0..360. The result
* is in 8.8 fixed point format, which means that 1.0 = $100 and -1.0 = $FF00.