Le 13/01/2017 à 18:55, Richard Henderson a écrit : > On 01/13/2017 04:51 AM, Laurent Vivier wrote: >> M680x0 bit operations with an immediate value use 9 bits of the 16bit >> value, while coldfire ones use only 8 bits. > > I don't see that in the reference manual. Where do you get this from?
See "BSET Instruction Format:BIT NUMBER STATIC, SPECIFIED AS IMMEDIATE DATA", p. 4.58 of "M68000 FAMILY PROGRAMMER’S REFERENCE MANUAL", "BIT NUMBER" is bits 0 to 8 of extended word. See "Test a Bit and Set", p. 4-22 of "ColdFire Family Programmer’s Reference Manual, Rev. 3" (link given by Thomas), "Bit Number" is bits 0 to 7 of extended word. I've found the problem with RISU. Thanks, Laurent
