uart0.err

支持三星原产的S3C24A0开发板

"src\uart0.c", line 147: Warning: C2892E: signed constant overflow: '<<'
"src\uart0.c", line 237: Warning: C2917W: no side effect in void context: 'unary *<expr>'
"src\uart0.c", line 244: Warning: C2917W: no side effect in void context: 'unary *<expr>'
"src\uart0.c", line 256: Warning: C2917W: no side effect in void context: 'unary *<expr>'
"src\uart0.c", line 375: Warning: C2917W: no side effect in void context: 'unary *<expr>'
"src\uart0.c", line 398: Warning: C2917W: no side effect in void context: 'unary *<expr>'
"src\uart0.c", line 408: Warning: C2917W: no side effect in void context: 'unary *<expr>'
"src\uart0.c", line 422: Warning: C2917W: no side effect in void context: 'unary *<expr>'
"src\uart0.c", line 448: Warning: C2892E: signed constant overflow: '<<'
"src\uart0.c", line 476: Warning: C2892E: signed constant overflow: '<<'
"src\uart0.c", line 481: Warning: C2917W: no side effect in void context: 'unary *<expr>'
"src\uart0.c", line 505: Warning: C2917W: no side effect in void context: 'unary *<expr>'
"src\uart0.c", line 509: Warning: C2917W: no side effect in void context: 'unary *<expr>'
"src\uart0.c", line 520: Warning: C2917W: no side effect in void context: 'unary *<expr>'
"src\uart0.c", line 607: Warning: C2917W: no side effect in void context: 'unary *<expr>'
"src\uart0.c", line 637: Warning: C2917W: no side effect in void context: 'unary *<expr>'
"src\uart0.c", line 686: Warning: C2917W: no side effect in void context: 'unary *<expr>'
"src\uart0.c", line 746: Warning: C2916W: use of '=' in condition context
"src\uart0.c", line 777: Warning: C2807W: undefined behaviour: 'dbg_data' written twice without intervening sequence point
"src\uart0.c", line 812: Warning: C2916W: use of '=' in condition context
"src\uart0.c", line 832: Warning: C2917W: no side effect in void context: 'unary *<expr>'
"src\uart0.c", line 847: Warning: C2807W: undefined behaviour: 'dbg_data' written twice without intervening sequence point
"src\uart0.c", line 937: Warning: C2917W: no side effect in void context: 'unary *<expr>'
"src\uart0.c", line 954: Warning: C2870W: variable 'ch' declared but not used
"src\uart0.c", line 962: Warning: C2917W: no side effect in void context: 'unary *<expr>'
src\uart0.c: 25 warnings, 0 errors, 0 serious errors