diff options
Diffstat (limited to 'sys/dev/microcode/aic7xxx/aicasm_gram.y')
| -rw-r--r-- | sys/dev/microcode/aic7xxx/aicasm_gram.y | 121 |
1 files changed, 111 insertions, 10 deletions
diff --git a/sys/dev/microcode/aic7xxx/aicasm_gram.y b/sys/dev/microcode/aic7xxx/aicasm_gram.y index 38b0dbcb53e..c2889c5c2ba 100644 --- a/sys/dev/microcode/aic7xxx/aicasm_gram.y +++ b/sys/dev/microcode/aic7xxx/aicasm_gram.y @@ -2,7 +2,7 @@ /* * Parser for the Aic7xxx SCSI Host adapter sequencer assembler. * - * Copyright (c) 1997-1998 Justin T. Gibbs. + * Copyright (c) 1997, 1998, 2000 Justin T. Gibbs. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -14,6 +14,9 @@ * 2. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * + * Alternatively, this software may be distributed under the terms of the + * GNU Public License ("GPL"). + * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE @@ -26,7 +29,7 @@ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * - * $FreeBSD: src/sys/dev/aic7xxx/aicasm_gram.y,v 1.8 1999/12/06 18:23:30 gibbs Exp $ + * $FreeBSD: src/sys/dev/aic7xxx/aicasm/aicasm_gram.y,v 1.15 2001/07/18 21:03:32 gibbs Exp $ */ #include <stdio.h> @@ -43,6 +46,7 @@ int yylineno; char *yyfilename; +char *versions; static symbol_t *cur_symbol; static symtype cur_symtype; static symbol_t *accumulator; @@ -53,6 +57,7 @@ static symbol_ref_t sindex; static int instruction_ptr; static int sram_or_scb_offset; static int download_constant_count; +static int in_critical_section; static void process_bitmask __P((int mask_type, symbol_t *sym, int mask)); static void initialize_symbol __P((symbol_t *symbol)); @@ -71,6 +76,7 @@ static void type_check __P((symbol_t *symbol, expression_t *expression, int and_op)); static void make_expression __P((expression_t *immed, int value)); static void add_conditional __P((symbol_t *symbol)); +static void add_version __P((const char *)); static int is_download_const __P((expression_t *immed)); #define YYDEBUG 1 @@ -106,17 +112,21 @@ static int is_download_const __P((expression_t *immed)); %token <value> T_MODE +%token T_BEGIN_CS + +%token T_END_CS + %token T_BIT %token T_MASK %token <value> T_NUMBER -%token <str> T_PATH +%token <str> T_PATH T_STRING %token <sym> T_CEXPR -%token T_EOF T_INCLUDE +%token T_EOF T_INCLUDE T_VERSION %token <value> T_SHR T_SHL T_ROR T_ROL @@ -130,7 +140,7 @@ static int is_download_const __P((expression_t *immed)); %token <value> T_STC T_CLC -%token <value> T_CMP T_XOR +%token <value> T_CMP T_NOT T_XOR %token <value> T_TEST T_AND @@ -168,6 +178,8 @@ static int is_download_const __P((expression_t *immed)); program: include | program include +| version +| program version | register | program register | constant @@ -178,6 +190,10 @@ program: | program scb | label | program label +| critical_section_start +| program critical_section_start +| critical_section_end +| program critical_section_end | conditional | program conditional | code @@ -186,9 +202,18 @@ program: include: T_INCLUDE '<' T_PATH '>' - { include_file($3, BRACKETED_INCLUDE); } + { + include_file($3, BRACKETED_INCLUDE); + } | T_INCLUDE '"' T_PATH '"' - { include_file($3, QUOTED_INCLUDE); } + { + include_file($3, QUOTED_INCLUDE); + } +; + +version: + T_VERSION '=' T_STRING + { add_version($3); } ; register: @@ -527,6 +552,8 @@ scb: } cur_symbol->type = SCBLOC; initialize_symbol(cur_symbol); + /* 64 bytes of SCB space */ + cur_symbol->info.rinfo->size = 64; } reg_address { @@ -551,6 +578,21 @@ reg_symbol: $$.symbol = $1; $$.offset = 0; } +| T_SYMBOL '[' T_SYMBOL ']' + { + process_register(&$1); + if ($3->type != CONST) { + stop("register offset must be a constant", EX_DATAERR); + /* NOTREACHED */ + } + if (($3->info.cinfo->value + 1) > $1->info.rinfo->size) { + stop("Accessing offset beyond range of register", + EX_DATAERR); + /* NOTREACHED */ + } + $$.symbol = $1; + $$.offset = $3->info.cinfo->value; + } | T_SYMBOL '[' T_NUMBER ']' { process_register(&$1); @@ -621,6 +663,35 @@ ret: { $$ = 1; } ; +critical_section_start: + T_BEGIN_CS + { + critical_section_t *cs; + + if (in_critical_section != FALSE) { + stop("Critical Section within Critical Section", + EX_DATAERR); + /* NOTREACHED */ + } + cs = cs_alloc(); + cs->begin_addr = instruction_ptr; + in_critical_section = TRUE; + } + +critical_section_end: + T_END_CS + { + critical_section_t *cs; + + if (in_critical_section == FALSE) { + stop("Unballanced 'end_cs'", EX_DATAERR); + /* NOTREACHED */ + } + cs = TAILQ_LAST(&cs_tailq, cs_tailq); + cs->end_addr = instruction_ptr; + in_critical_section = FALSE; + } + label: T_SYMBOL ':' { @@ -732,7 +803,6 @@ conditional: '}' { scope_t *scope_context; - scope_t *last_scope; scope_context = SLIST_FIRST(&scope_stack); if (scope_context->type == SCOPE_ROOT) { @@ -838,8 +908,8 @@ code: { expression_t immed; - make_expression(&immed, 0xff); - format_1_instr(AIC_OP_AND, &$2, &immed, &$4, $5); + make_expression(&immed, 1); + format_1_instr(AIC_OP_BMOV, &$2, &immed, &$4, $5); } ; @@ -847,6 +917,16 @@ code: T_MVI destination ',' immediate_or_a ret ';' { format_1_instr(AIC_OP_OR, &$2, &$4, &allzeros, $5); + } +; + +code: + T_NOT destination opt_source ret ';' + { + expression_t immed; + + make_expression(&immed, 0xff); + format_1_instr(AIC_OP_XOR, &$2, &immed, &$3, $4); } ; @@ -1391,6 +1471,27 @@ add_conditional(symbol) symlist_add(&patch_functions, symbol, SYMLIST_INSERT_HEAD); } +static void +add_version(verstring) +const char *verstring; +{ + const char prefix[] = " * "; + int newlen; + int oldlen; + + newlen = strlen(verstring) + strlen(prefix); + oldlen = 0; + if (versions != NULL) + oldlen = strlen(versions); + versions = realloc(versions, newlen + oldlen + 2); + if (versions == NULL) + stop("Can't allocate version string", EX_SOFTWARE); + strcpy(&versions[oldlen], prefix); + strcpy(&versions[oldlen + strlen(prefix)], verstring); + versions[newlen + oldlen] = '\n'; + versions[newlen + oldlen + 1] = '\0'; +} + void yyerror(string) const char *string; |