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Add support for the WAIT instruction.

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Eric Anholt 2006-09-01 11:56:12 -07:00 committed by Damien Lespiau
parent 055be60abf
commit 1f58efa747
1 changed files with 22 additions and 1 deletions
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23
assembler/src/gram.y
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@ -116,7 +116,7 @@ void set_direct_src_operand(struct src_operand *src, struct direct_reg *reg,
%type <instruction> instruction unaryinstruction binaryinstruction
%type <instruction> binaryaccinstruction triinstruction sendinstruction
%type <instruction> jumpinstruction branchloopinstruction elseinstruction
%type <instruction> specialinstruction
%type <instruction> syncinstruction specialinstruction
%type <instruction> msgtarget
%type <instruction> instoptions instoption_list predicate
%type <program> instrseq
@ -185,6 +185,7 @@ instruction: unaryinstruction
| jumpinstruction
| branchloopinstruction
| elseinstruction
| syncinstruction
| specialinstruction
;
@ -375,6 +376,26 @@ breakop: BREAK | CONT | WAIT
maskpushop: MSAVE | PUSH
;
syncinstruction: predicate WAIT notifyreg
{
struct direct_reg null;
struct dst_operand null_dst;
struct src_operand null_src;
null.reg_file = BRW_ARCHITECTURE_REGISTER_FILE;
null.reg_nr = BRW_ARF_NULL;
null.subreg_nr = 0;
bzero(&$$, sizeof($$));
$$.header.opcode = $2;
set_direct_dst_operand(&null_dst, &null, BRW_REGISTER_TYPE_UD);
set_instruction_dest(&$$, &null_dst);
set_direct_src_operand(&null_src, &null, BRW_REGISTER_TYPE_UD);
set_instruction_src0(&$$, &$3);
set_instruction_src1(&$$, &null_src);
}
;
specialinstruction: NOP
{
bzero(&$$, sizeof($$));