Renesas M32R-FPU Manual Do Utilizador

3

3-14

M32R-FPU Software Manual (Rev.1.01)

 

 BC  pcdisp8

 

 BC  pcdisp24

Branch

(1)   if ( C==1 )  PC = ( PC & 0xfffffffc ) + ( ( ( signed char ) pcdisp8 ) << 2 );

(2)   if ( C==1 )  PC = ( PC & 0xfffffffc ) + ( sign_extend ( pcdisp24 ) << 2 );

where

#define  sign_extend(x)    ( ( ( signed ) ( (x)<< 8 ) ) >>8 )

BC causes a branch to the specified label when the condition bit (C) is 1.

There are two instruction formats; which allows software, such as an assembler, to decide on

the better format.

The condition bit (C) is unchanged.

None

INSTRUCTIONS

3.2 Instruction description

branch instruction