 C166 User's Guide | |
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C166 User's Guide
C166 Introduction Compiling Programs
Environment Settings Command Prompt ERRORLEVEL Output Files Listing (LST) File Preprocessor (I) File Object (OBJ) File Source (SRC) File Directives Reference ASM ASMEXPAND BROWSE BYTEALIGN CODE COMMONRET COMPACT COND DEBUG DEFINE DISABLE DYNAMICUSRSTK EJECT ENDASM EXTINS FIX_BR03 FIX166 FIX167 FIX272 FIX32F FIXBFLD FIXMDU FIXPEC FIXROM FLOAT64 HCOMPACT HLARGE HOLD INCDIR INIT LARGE LISTINCLUDE MAC MEDIUM MOD167 MODV2 NOALIAS NOAMAKE NOASMEXPAND NOCOND NODPPSAVE NOEXTEND NOFIXDPP NOFRAME NOINIT NOOBJECT NOPRINT NOREORDER NOSAVEMAC OBJECT OPTIMIZE ORDER PACK PAGELENGTH PAGEWIDTH PECDEF PREPRINT PREPRINTONLY PRINT REENTRANT REGFILE RENAMECLASS REORDER RESTORE SAVE SAVEMAC SAVESYS SAVEUSR SMALL SRC STATIC SYMBOLS TABS TINY UNSIGNED_CHAR USERSTACKDPP3 WARNING WARNINGLEVEL XLARGE Language Extensions Preprocessor Advanced Programming Error Messages Library Reference AppendixListing (LST) File
The compiler listing file contains an abundance of information about the compilation process. It is composed of a number of sections, each of which is described below in the order in which they appear in the file.
Page Header
Each listing page includes a header with the compiler version number, source file name, date, time, and page number.
C166 COMPILER V5.00, MEASURE 01/11/2004 16:16:23 PAGE 1
Command Line
The entire command line that was used to invoke the compiler is included in the listing file. This often helps diagnose problems with the command line.
C166 COMPILER V5.00, COMPILATION OF MODULE MEASURE
OBJECT MODULE PLACED IN .\Object\Measure.obj
COMPILER INVOKED BY: C:\Keil\C166\BIN\C166.EXE Measure.c REGFILE
-(.\Object\measure.ORC) BROWSE MOD167 DEBUG
-CODE LISTINCLUDE SYMBOLS PRINT(.\Listing\M
-easure.lst) PREPRINT(.\Listing\Measure.i)
-OBJECT(.\Object\Measure.obj)
Source Code
The source code listing outputs the line number as well as the source code on that line.
You may use the COND directive to include all conditional code (code in #if blocks) in the source code listing. The NOCOND directive may be used to exclude uncompiled conditional code blocks from the listing file.
You may use the LISTINCLUDE directive to include the contents of #include files in the source code listing. By default, include file contents are not output in the listing file.
46 const char ERROR [] = "\n*** ERROR: %s\n";
47
48 #define PERIOD -2500
49 #define WRONGINDEX 0xffff
50
51
52 /* The following function is called from */
53 /* the interrupt service routine. */
54 /* Save current measurements in save_record */
55
56 static void save_measurements (void) {
57 1 save_record[sindex++] = current;
58 1 if (sindex == SCNT) sindex = 0;
59 1 if (sindex == savefirst) {
60 2 if (++savefirst == SCNT) savefirst = 0;
61 2 }
62 1 }
63
64
65
66 /* Timer 0 interrupt service function */
67 /* executes each 1 msec @ 40 MHz Crystal Clock */
68
69 static void timer0(void) interrupt 0x20 using INTREGS {
70 1 /* Int Vector at 0080H, other Reg Bank */
71 1
72 1 unsigned char i;
73 1
74 1 if (measurement_interval) {
75 2 save_measurements ();
76 2 measurement_interval = 0;
77 2 }
Assembly Listing
The assembly listing contains the assembly code generated by the compiler for the C source code. The CODE directive may be used to include the assembly listing output.
; FUNCTION save_measurements (BEGIN RMASK = @0x40D0)
; SOURCE LINE # 56
; SOURCE LINE # 57
0000 F2F40A20 R MOV R4,sindex
0004 248F0A20 R SUB sindex,ONES
0008 5C44 SHL R4,#04H
000A E6F60A00 R MOV R6,#save_record
000E 0064 ADD R6,R4
0010 E6F40C20 R MOV R4,#current
0014 E6F71000 MOV R7,#010H
0018 ?C0078:
0018 E864 MOV [R6],[R4+]
001A 0862 ADD R6,#02H
001C 2872 SUB R7,#02H
001E 3DFC JMPR cc_NZ,?C0078
; SOURCE LINE # 58
0020 F2F40A20 R MOV R4,sindex
0024 46F40002 CMP R4,#0200H
0028 3D02 JMPR cc_NZ,?C0001
002A F68E0A20 R MOV sindex,ZEROS
002E ?C0001:
; SOURCE LINE # 59
002E F2F40400 R MOV R4,savefirst
0032 42F40A20 R CMP R4,sindex
0036 3D09 JMPR cc_NZ,?C0002
In the assembly listing, function headers include a comment with a compiler-generated register mask (RMASK = @0x40D0). Function masks are used when global register optimization is enabled by the REGFILE directive. The register mask is a 16-bit number that indicates which registers are used by a function. Each bit in the mask refers to one register. The encoding for the register mask is as follows:
| Bit Position | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| -- | DPP3 | MDx | R12 | R11 | R10 | R9 | R8 | R7 | R6 | R5 | R4 | R3 | R2 | R1 | DPP0 |
Two special values of the register mask specify all registers or no registers:
- 0x0000 specifies that the function uses all registers.
- 0x8000 specifies that the function uses no registers.
For example, a register mask value of 0x40D0 indicates that the function uses DPP3, R7, R6, and R4.
Symbol Listing
The symbol listing contains symbolic information about program symbols in the compiled source file. Included are symbol name, classification (SFR, structure, typedef, static, public, auto, extern), memory space, data type, offset, and size in bytes. The SYMBOLS directive may be used to include symbol listing output.
NAME CLASS SPACE TYPE OFFSET SIZE -------------------------------------------------------------------- wchar_t. . . . . . . . . . . . typedef char ----- 1 interval . . . . . . . . . . . --tag-- struct ----- 4 min. . . . . . . . . . . . . member uchar 0H 1 sec. . . . . . . . . . . . . member uchar 1H 1 msec . . . . . . . . . . . . member uint 2H 2 PSW. . . . . . . . . . . . . . sfr uint FF10H 2 S0RIR. . . . . . . . . . . . . absbit bit FF6EH.7 1 T8REL. . . . . . . . . . . . . sfr uint F056H 2 T7REL. . . . . . . . . . . . . sfr uint F054H 2 WDT. . . . . . . . . . . . . . sfr uint FEAEH 2 IEN. . . . . . . . . . . . . . absbit bit FF10H.11 1 sscanf . . . . . . . . . . . . extern NCODE funct ----- toupper. . . . . . . . . . . . extern NCODE funct ----- printf . . . . . . . . . . . . extern NCODE funct ----- set_interval . . . . . . . . . extern NCODE funct ----- measure_display. . . . . . . . extern NCODE funct ----- set_time . . . . . . . . . . . extern NCODE funct ----- getline. . . . . . . . . . . . extern NCODE funct ----- _getkey. . . . . . . . . . . . extern NCODE funct ----- clear_records. . . . . . . . . static NCODE funct ----- idx. . . . . . . . . . . . . --reg-- uint ----- 2 timer0 . . . . . . . . . . . . static NCODE funct ----- i. . . . . . . . . . . . . . --reg-- uchar ----- 1 save_measurements. . . . . . . static NCODE funct ----- main . . . . . . . . . . . . . public NCODE funct ----- cmdbuf . . . . . . . . . . . static NDATA0 array 201CH 15 i. . . . . . . . . . . . . . --reg-- uchar ----- 1 idx. . . . . . . . . . . . . --reg-- uint ----- 2 read_index . . . . . . . . . . static NCODE funct ----- buffer . . . . . . . . . . . --reg-- ptr ----- 2 index. . . . . . . . . . . . auto int 0H 2 args . . . . . . . . . . . . --reg-- int ----- 2 ERROR. . . . . . . . . . . . . public NCONST array 0H 16 menu . . . . . . . . . . . . . static NCONST array 7AH 847 interval . . . . . . . . . . . public NDATA0 struct 0H 4 savefirst. . . . . . . . . . . static NDATA0 uint 4H 2 setinterval. . . . . . . . . . public NDATA0 struct 6H 4 save_record. . . . . . . . . . static NDATA0 array AH 8192 sindex . . . . . . . . . . . . static NDATA0 uint 200AH 2 current. . . . . . . . . . . . public NDATA0 struct 200CH 16 cmdbuf . . . . . . . . . . . . static NDATA0 array 201CH 15 measurement_interval . . . . . static BIT0 bit 0H 1 mdisplay . . . . . . . . . . . static BIT0 bit 1H 1 startflag. . . . . . . . . . . static BIT0 bit 2H 1
Module Information
The module information provides the size of initialized and uninitialized memory areas defined by the source file.
MODULE INFORMATION: INITIALIZED UNINITIALIZED CODE SIZE = 910 -------- NEAR-CONST SIZE = 1062 -------- FAR-CONST SIZE = -------- -------- HUGE-CONST SIZE = -------- -------- XHUGE-CONST SIZE = -------- -------- NEAR-DATA SIZE = 8235 -------- FAR-DATA SIZE = -------- -------- XHUGE-DATA SIZE = -------- -------- IDATA-DATA SIZE = -------- -------- SDATA-DATA SIZE = -------- -------- BDATA-DATA SIZE = -------- -------- HUGE-DATA SIZE = -------- -------- BIT SIZE = 3 -------- INIT'L SIZE = -------- -------- END OF MODULE INFORMATION.
Warnings and Errors
Problems encountered while compiling may cause errors and/or warnings that are output to the screen and to the listing file. Refer to the Error Messages chapter for details about error and warning messages.
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