mspgcc-users@lists.sourceforge.net schrieb am 24.02.03 05:54:31: > > Official Release 1 ( 17-Dec-2002) does not generate this problem. > This is a bug when using patches from 10 Feb 2003. > > The first scenario (right shift 3) generates incorrect code. it should be > > bit.b #llo(8), &0x0030 > > c-code : > > /* Initialise key matrix variables */ > KP_CurKeyVal = (P5IN & 0x08) >> 3; > > list file output: > > 246:src/keys.c **** /* Initialise key matrix variables */ > 247:src/keys.c **** KP_CurKeyVal = (P5IN & 0x08) >> 3; > 223 .stabn 68,0,247,.LM16-KEYS_InitSW > 224 .LM16: > 225 0054 F2B0 0300 bit.b #llo(3), &0x0030 > 225 3000 > 226 005a C243 0000 clr.b &KP_CurKeyVal > 227 005e C263 0000 adc.b &KP_CurKeyVal > > > > Correct code is generated for a right shift of 2 > c-code: > > /* Initialise key matrix variables */ > KP_CurKeyVal = (P5IN & 0x08) >> 2; > > list file: > > 246:src/keys.c **** /* Initialise key matrix variables */ > 247:src/keys.c **** KP_CurKeyVal = (P5IN & 0x08) >> 2; > 223 .stabn 68,0,247,.LM16-KEYS_InitSW > 224 .LM16: > 225 0054 5F42 3000 mov.b &0x0030, r15 > 226 0058 7FF2 and.b #llo(8), r15 > 227 005a 12C3 clrc > 228 005c 4F10 rrc.b r15 > 229 005e 4F11 rra.b r15 > 230 0060 C24F 0000 mov.b r15, &KP_CurKeyVal > > > > Regards, > Phil Hancock > Design Engineer > Tekelek Pty Ltd > 7 Comley St > Export Park > South Australia 5950 > Ph 61 8 8234 3011 > Fx 61 8 8234 3242 > > > > > > ------------------------------------------------------- > This SF.net email is sponsored by: SlickEdit Inc. Develop an edge. > The most comprehensive and flexible code editor you can use. > Code faster. C/C++, C#, Java, HTML, XML, many more. FREE 30-Day Trial. > www.slickedit.com/sourceforge > _______________________________________________ > Mspgcc-users mailing list > Mspgcc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/mspgcc-users
