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Make 'w' and '...' tokens, and make '@' a separate token

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Now '@' is valid as a relocexpr_no_str, in 'BANK(@)', and
in 'DEF(@)', but not in general T_ID or T_LABEL contexts

This will make it easier to implement INCBIN with 'ld'
This commit is contained in:
Rangi
2021-03-30 10:17:09 -04:00
parent 663c1930ec
commit 8c4204c542
2 changed files with 9 additions and 2 deletions
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6
src/asm/lexer.c
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@@ -176,6 +176,7 @@ static struct KeywordMapping {
{"E", T_TOKEN_E}, {"E", T_TOKEN_E},
{"H", T_TOKEN_H}, {"H", T_TOKEN_H},
{"L", T_TOKEN_L}, {"L", T_TOKEN_L},
{"W", T_TOKEN_W},
{"DEF", T_OP_DEF}, {"DEF", T_OP_DEF},
@@ -293,6 +294,9 @@ static struct KeywordMapping {
{"OPT", T_POP_OPT}, {"OPT", T_POP_OPT},
{".", T_PERIOD}, {".", T_PERIOD},
{"...", T_ELLIPSIS},
{"@", T_TOKEN_AT},
}; };
static bool isWhitespace(int c) static bool isWhitespace(int c)
@@ -591,7 +595,7 @@ struct KeywordDictNode {
uint16_t children[0x60 - ' ']; uint16_t children[0x60 - ' '];
struct KeywordMapping const *keyword; struct KeywordMapping const *keyword;
/* Since the keyword structure is invariant, the min number of nodes is known at compile time */ /* Since the keyword structure is invariant, the min number of nodes is known at compile time */
} keywordDict[354] = {0}; /* Make sure to keep this correct when adding keywords! */ } keywordDict[357] = {0}; /* Make sure to keep this correct when adding keywords! */
/* Convert a char into its index into the dict */ /* Convert a char into its index into the dict */
static inline uint8_t dictIndex(char c) static inline uint8_t dictIndex(char c)

5
src/asm/parser.y
View File

@@ -450,6 +450,7 @@ enum {
%token <tzString> T_STRING "string" %token <tzString> T_STRING "string"
%token T_PERIOD "." %token T_PERIOD "."
%token T_ELLIPSIS "..."
%token T_COMMA "," %token T_COMMA ","
%token T_COLON ":" %token T_COLON ":"
%token T_LBRACK "[" T_RBRACK "]" %token T_LBRACK "[" T_RBRACK "]"
@@ -510,6 +511,7 @@ enum {
%token <tzSym> T_ID "identifier" %token <tzSym> T_ID "identifier"
%token <tzSym> T_LOCAL_ID "local identifier" %token <tzSym> T_LOCAL_ID "local identifier"
%token <tzSym> T_ANON "anonymous label" %token <tzSym> T_ANON "anonymous label"
%token <tzSym> T_TOKEN_AT "@"
%type <tzSym> def_id %type <tzSym> def_id
%type <tzSym> redef_id %type <tzSym> redef_id
%type <tzSym> scoped_id %type <tzSym> scoped_id
@@ -590,6 +592,7 @@ enum {
%token T_TOKEN_B "b" T_TOKEN_C "c" %token T_TOKEN_B "b" T_TOKEN_C "c"
%token T_TOKEN_D "d" T_TOKEN_E "e" %token T_TOKEN_D "d" T_TOKEN_E "e"
%token T_TOKEN_H "h" T_TOKEN_L "l" %token T_TOKEN_H "h" T_TOKEN_L "l"
%token T_TOKEN_W "w"
%token T_MODE_AF "af" T_MODE_BC "bc" T_MODE_DE "de" T_MODE_SP "sp" T_MODE_PC "pc" %token T_MODE_AF "af" T_MODE_BC "bc" T_MODE_DE "de" T_MODE_SP "sp" T_MODE_PC "pc"
%token T_MODE_IME "ime" %token T_MODE_IME "ime"
%token T_MODE_HL "hl" T_MODE_HL_DEC "hld/hl-" T_MODE_HL_INC "hli/hl+" %token T_MODE_HL "hl" T_MODE_HL_DEC "hld/hl-" T_MODE_HL_INC "hli/hl+"
@@ -717,7 +720,7 @@ redef_id : T_POP_REDEF {
; ;
scoped_id : T_ID | T_LOCAL_ID; scoped_id : T_ID | T_LOCAL_ID;
scoped_anon_id : scoped_id | T_ANON; scoped_anon_id : scoped_id | T_ANON | T_TOKEN_AT;
label : %empty label : %empty
| T_COLON { | T_COLON {