ref: eb4f790a827c7758182a3750eb717332b30d475f
dir: /src/asm/yaccprt3.y/
%start asmfile
%%
asmfile : lines lastline
;
lastline : /* empty */
| line
{ nLineNo+=1; nTotalLines+=1; }
;
lines : /* empty */
| lines line '\n'
{ nLineNo+=1; nTotalLines+=1; }
;
line : /* empty */
| label
| label cpu_command
| label macro
| label simple_pseudoop
| pseudoop
;
label : /* empty */
| T_LABEL { if( $1[0]=='.' )
sym_AddLocalReloc($1);
else
sym_AddReloc($1);
}
| T_LABEL ':' { if( $1[0]=='.' )
sym_AddLocalReloc($1);
else
sym_AddReloc($1);
}
| T_LABEL ':' ':' { sym_AddReloc($1); sym_Export($1); }
;
macro : T_ID
{
yy_set_state( LEX_STATE_MACROARGS );
}
macroargs
{
yy_set_state( LEX_STATE_NORMAL );
if( !fstk_RunMacro($1) )
{
fprintf(stderr, "Macro '%s' not defined", $1);
yyerror( "No such macro" );
}
}
;
macroargs : /* empty */
| macroarg
| macroarg ',' macroargs
;
macroarg : T_STRING
{ sym_AddNewMacroArg( $1 ); }
;
pseudoop : equ
| set
| rb
| rw
| rl
| equs
| macrodef
;
simple_pseudoop : include
| printf
| printt
| printv
| if
| else
| endc
| import
| export
| global
| db
| dw
| dl
| ds
| section
| rsreset
| rsset
| incbin
| rept
| shift
| fail
| warn
| purge
| pops
| pushs
| popo
| pusho
| opt
;
opt : T_POP_OPT
{
yy_set_state( LEX_STATE_MACROARGS );
}
opt_list
{
yy_set_state( LEX_STATE_NORMAL );
}
;
opt_list : opt_list_entry
| opt_list_entry ',' opt_list
;
opt_list_entry : T_STRING
{
opt_Parse($1);
}
;
popo : T_POP_POPO
{ opt_Pop(); }
;
pusho : T_POP_PUSHO
{ opt_Push(); }
;
pops : T_POP_POPS
{ out_PopSection(); }
;
pushs : T_POP_PUSHS
{ out_PushSection(); }
;
fail : T_POP_FAIL string
{ fatalerror($2); }
;
warn : T_POP_WARN string
{ yyerror($2); }
;
shift : T_POP_SHIFT
{ sym_ShiftCurrentMacroArgs(); }
;
rept : T_POP_REPT const
{
copyrept();
fstk_RunRept( $2 );
}
;
macrodef : T_LABEL ':' T_POP_MACRO
{
copymacro();
sym_AddMacro($1);
}
;
equs : T_LABEL T_POP_EQUS string
{ sym_AddString( $1, $3 ); }
;
rsset : T_POP_RSSET const
{ sym_AddSet( "_RS", $2 ); }
;
rsreset : T_POP_RSRESET
{ sym_AddSet( "_RS", 0 ); }
;
rl : T_LABEL T_POP_RL const
{
sym_AddEqu( $1, sym_GetConstantValue("_RS") );
sym_AddSet( "_RS", sym_GetConstantValue("_RS")+4*$3 );
}
;
rw : T_LABEL T_POP_RW const
{
sym_AddEqu( $1, sym_GetConstantValue("_RS") );
sym_AddSet( "_RS", sym_GetConstantValue("_RS")+2*$3 );
}
;
rb : T_LABEL T_POP_RB const
{
sym_AddEqu( $1, sym_GetConstantValue("_RS") );
sym_AddSet( "_RS", sym_GetConstantValue("_RS")+$3 );
}
;
ds : T_POP_DS const
{ out_Skip( $2 ); }
;
db : T_POP_DB constlist_8bit
;
dw : T_POP_DW constlist_16bit
;
dl : T_POP_DL constlist_32bit
;
purge : T_POP_PURGE
{
oDontExpandStrings=1;
}
purge_list
{
oDontExpandStrings=0;
}
;
purge_list : purge_list_entry
| purge_list_entry ',' purge_list
;
purge_list_entry : T_ID { sym_Purge($1); }
;
import : T_POP_IMPORT import_list
;
import_list : import_list_entry
| import_list_entry ',' import_list
;
import_list_entry : T_ID { sym_Import($1); }
;
export : T_POP_EXPORT export_list
;
export_list : export_list_entry
| export_list_entry ',' export_list
;
export_list_entry : T_ID { sym_Export($1); }
;
global : T_POP_GLOBAL global_list
;
global_list : global_list_entry
| global_list_entry ',' global_list
;
global_list_entry : T_ID { sym_Global($1); }
;
equ : T_LABEL T_POP_EQU const
{ sym_AddEqu( $1, $3 ); }
;
set : T_LABEL T_POP_SET const
{ sym_AddSet( $1, $3 ); }
;
include : T_POP_INCLUDE string
{
if( !fstk_RunInclude($2) )
{
fprintf(stderr, "Could not open file '%s' : %s\n", $2, strerror(errno));
yyerror( "File not found" );
}
}
;
incbin : T_POP_INCBIN string
{ out_BinaryFile( $2 ); }
| T_POP_INCBIN string ',' const ',' const
{
out_BinaryFileSlice( $2, $4, $6 );
}
;
printt : T_POP_PRINTT string
{
if( nPass==1 )
printf( "%s", $2 );
}
;
printv : T_POP_PRINTV const
{
if( nPass==1 )
printf( "$%lX", $2 );
}
;
printf : T_POP_PRINTF const
{
if( nPass==1 )
math_Print( $2 );
}
;
if : T_POP_IF const
{
nIFDepth+=1;
if( !$2 )
{
if_skip_to_else(); /* will continue parsing just after ELSE or just at ENDC keyword */
}
}
else : T_POP_ELSE
{
if_skip_to_endc(); /* will continue parsing just at ENDC keyword */
}
;
endc : T_POP_ENDC
{
nIFDepth-=1;
}
;
const_3bit : const
{
if( ($1<0) || ($1>7) )
{
yyerror( "Immediate value must be 3-bit" );
}
else
$$=$1&0x7;
}
;
constlist_8bit : constlist_8bit_entry
| constlist_8bit_entry ',' constlist_8bit
;
constlist_8bit_entry : { out_Skip( 1 ); }
| const_8bit { out_RelByte( &$1 ); }
| string { out_String( $1 ); }
;
constlist_16bit : constlist_16bit_entry
| constlist_16bit_entry ',' constlist_16bit
;
constlist_16bit_entry : { out_Skip( 2 ); }
| const_16bit { out_RelWord( &$1 ); }
;
constlist_32bit : constlist_32bit_entry
| constlist_32bit_entry ',' constlist_32bit
;
constlist_32bit_entry : { out_Skip( 4 ); }
| relocconst { out_RelLong( &$1 ); }
;
const_PCrel : relocconst
{
$$ = $1;
if( !rpn_isPCRelative(&$1) )
yyerror( "Expression must be PC-relative" );
}
;
const_8bit : relocconst
{
if( (!rpn_isReloc(&$1)) && (($1.nVal<-128) || ($1.nVal>255)) )
{
yyerror( "Expression must be 8-bit" );
}
$$=$1;
}
;
const_16bit : relocconst
{
if( (!rpn_isReloc(&$1)) && (($1.nVal<-32768) || ($1.nVal>65535)) )
{
yyerror( "Expression must be 16-bit" );
}
$$=$1;
}
;
relocconst : T_ID
{ rpn_Symbol(&$$,$1); $$.nVal = sym_GetValue($1); }
| T_NUMBER
{ rpn_Number(&$$,$1); $$.nVal = $1; }
| string
{ ULONG r; r=str2int($1); rpn_Number(&$$,r); $$.nVal=r; }
| T_OP_LOGICNOT relocconst %prec NEG
{ rpn_LOGNOT(&$$,&$2); }
| relocconst T_OP_LOGICOR relocconst
{ rpn_LOGOR(&$$,&$1,&$3); }
| relocconst T_OP_LOGICAND relocconst
{ rpn_LOGAND(&$$,&$1,&$3); }
| relocconst T_OP_LOGICEQU relocconst
{ rpn_LOGEQU(&$$,&$1,&$3); }
| relocconst T_OP_LOGICGT relocconst
{ rpn_LOGGT(&$$,&$1,&$3); }
| relocconst T_OP_LOGICLT relocconst
{ rpn_LOGLT(&$$,&$1,&$3); }
| relocconst T_OP_LOGICGE relocconst
{ rpn_LOGGE(&$$,&$1,&$3); }
| relocconst T_OP_LOGICLE relocconst
{ rpn_LOGLE(&$$,&$1,&$3); }
| relocconst T_OP_LOGICNE relocconst
{ rpn_LOGNE(&$$,&$1,&$3); }
| relocconst T_OP_ADD relocconst
{ rpn_ADD(&$$,&$1,&$3); }
| relocconst T_OP_SUB relocconst
{ rpn_SUB(&$$,&$1,&$3); }
| relocconst T_OP_XOR relocconst
{ rpn_XOR(&$$,&$1,&$3); }
| relocconst T_OP_OR relocconst
{ rpn_OR(&$$,&$1,&$3); }
| relocconst T_OP_AND relocconst
{ rpn_AND(&$$,&$1,&$3); }
| relocconst T_OP_SHL relocconst
{ rpn_SHL(&$$,&$1,&$3); }
| relocconst T_OP_SHR relocconst
{ rpn_SHR(&$$,&$1,&$3); }
| relocconst T_OP_MUL relocconst
{ rpn_MUL(&$$,&$1,&$3); }
| relocconst T_OP_DIV relocconst
{ rpn_DIV(&$$,&$1,&$3); }
| relocconst T_OP_MOD relocconst
{ rpn_MOD(&$$,&$1,&$3); }
| T_OP_ADD relocconst %prec NEG
{ $$ = $2; }
| T_OP_SUB relocconst %prec NEG
{ rpn_UNNEG(&$$,&$2); }
| T_OP_NOT relocconst %prec NEG
{ rpn_UNNOT(&$$,&$2); }
| T_OP_BANK '(' T_ID ')'
{ rpn_Bank(&$$,$3); $$.nVal = 0; }
| T_OP_DEF '(' T_ID ')'
{ rpn_Number(&$$,sym_isConstDefined($3)); }
| T_OP_FDIV '(' const ',' const ')' { rpn_Number(&$$,math_Div($3,$5)); }
| T_OP_FMUL '(' const ',' const ')' { rpn_Number(&$$,math_Mul($3,$5)); }
| T_OP_SIN '(' const ')' { rpn_Number(&$$,math_Sin($3)); }
| T_OP_COS '(' const ')' { rpn_Number(&$$,math_Cos($3)); }
| T_OP_TAN '(' const ')' { rpn_Number(&$$,math_Tan($3)); }
| T_OP_ASIN '(' const ')' { rpn_Number(&$$,math_ASin($3)); }
| T_OP_ACOS '(' const ')' { rpn_Number(&$$,math_ACos($3)); }
| T_OP_ATAN '(' const ')' { rpn_Number(&$$,math_ATan($3)); }
| T_OP_ATAN2 '(' const ',' const ')' { rpn_Number(&$$,math_ATan2($3,$5)); }
| T_OP_STRCMP '(' string ',' string ')' { rpn_Number(&$$,strcmp($3,$5)); }
| T_OP_STRIN '(' string ',' string ')'
{
char *p;
if( (p=strstr($3,$5))!=NULL )
{
rpn_Number(&$$,p-$3+1);
}
else
{
rpn_Number(&$$,0);
}
}
| T_OP_STRLEN '(' string ')' { rpn_Number(&$$,strlen($3)); }
| '(' relocconst ')'
{ $$ = $2; }
;
const : T_ID { $$ = sym_GetConstantValue($1); }
| T_NUMBER { $$ = $1; }
| string { $$ = str2int($1); }
| T_OP_LOGICNOT const %prec NEG { $$ = !$2; }
| const T_OP_LOGICOR const { $$ = $1 || $3; }
| const T_OP_LOGICAND const { $$ = $1 && $3; }
| const T_OP_LOGICEQU const { $$ = $1 == $3; }
| const T_OP_LOGICGT const { $$ = $1 > $3; }
| const T_OP_LOGICLT const { $$ = $1 < $3; }
| const T_OP_LOGICGE const { $$ = $1 >= $3; }
| const T_OP_LOGICLE const { $$ = $1 <= $3; }
| const T_OP_LOGICNE const { $$ = $1 != $3; }
| const T_OP_ADD const { $$ = $1 + $3; }
| const T_OP_SUB const { $$ = $1 - $3; }
| T_ID T_OP_SUB T_ID { $$ = sym_GetDefinedValue($1) - sym_GetDefinedValue($3); }
| const T_OP_XOR const { $$ = $1 ^ $3; }
| const T_OP_OR const { $$ = $1 | $3; }
| const T_OP_AND const { $$ = $1 & $3; }
| const T_OP_SHL const { $$ = $1 << $3; }
| const T_OP_SHR const { $$ = $1 >> $3; }
| const T_OP_MUL const { $$ = $1 * $3; }
| const T_OP_DIV const { $$ = $1 / $3; }
| const T_OP_MOD const { $$ = $1 % $3; }
| T_OP_ADD const %prec NEG { $$ = +$2; }
| T_OP_SUB const %prec NEG { $$ = -$2; }
| T_OP_NOT const %prec NEG { $$ = 0xFFFFFFFF^$2; }
| T_OP_FDIV '(' const ',' const ')' { $$ = math_Div($3,$5); }
| T_OP_FMUL '(' const ',' const ')' { $$ = math_Mul($3,$5); }
| T_OP_SIN '(' const ')' { $$ = math_Sin($3); }
| T_OP_COS '(' const ')' { $$ = math_Cos($3); }
| T_OP_TAN '(' const ')' { $$ = math_Tan($3); }
| T_OP_ASIN '(' const ')' { $$ = math_ASin($3); }
| T_OP_ACOS '(' const ')' { $$ = math_ACos($3); }
| T_OP_ATAN '(' const ')' { $$ = math_ATan($3); }
| T_OP_ATAN2 '(' const ',' const ')' { $$ = math_ATan2($3,$5); }
| T_OP_DEF '(' T_ID ')' { $$ = sym_isConstDefined($3); }
| T_OP_STRCMP '(' string ',' string ')' { $$ = strcmp( $3, $5 ); }
| T_OP_STRIN '(' string ',' string ')'
{
char *p;
if( (p=strstr($3,$5))!=NULL )
{
$$ = p-$3+1;
}
else
{
$$ = 0;
}
}
| T_OP_STRLEN '(' string ')' { $$ = strlen($3); }
| '(' const ')' { $$ = $2; }
;
string : T_STRING
{ strcpy($$,$1); }
| T_OP_STRSUB '(' string ',' const ',' const ')'
{ strncpy($$,$3+$5-1,$7); $$[$7]=0; }
| T_OP_STRCAT '(' string ',' string ')'
{ strcpy($$,$3); strcat($$,$5); }
| T_OP_STRUPR '(' string ')'
{ strcpy($$,$3); strupr($$); }
| T_OP_STRLWR '(' string ')'
{ strcpy($$,$3); strlwr($$); }
;