*****************************************************************************/
/*
- * Copyright (C) 2000 - 2004, R. Byron Moore
+ * Copyright (C) 2000 - 2005, R. Byron Moore
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
acpi_status status;
- ACPI_FUNCTION_TRACE_STR ("ex_opcode_2A_2T_1R", acpi_ps_get_opcode_name (walk_state->opcode));
+ ACPI_FUNCTION_TRACE_STR ("ex_opcode_2A_2T_1R",
+ acpi_ps_get_opcode_name (walk_state->opcode));
/*
/* Quotient to return_desc1, remainder to return_desc2 */
- status = acpi_ut_divide (&operand[0]->integer.value, &operand[1]->integer.value,
- &return_desc1->integer.value, &return_desc2->integer.value);
+ status = acpi_ut_divide (operand[0]->integer.value,
+ operand[1]->integer.value,
+ &return_desc1->integer.value,
+ &return_desc2->integer.value);
if (ACPI_FAILURE (status)) {
goto cleanup;
}
{
union acpi_operand_object **operand = &walk_state->operands[0];
union acpi_operand_object *return_desc = NULL;
- union acpi_operand_object *temp_desc = NULL;
u32 index;
acpi_status status = AE_OK;
acpi_size length;
- ACPI_FUNCTION_TRACE_STR ("ex_opcode_2A_1T_1R", acpi_ps_get_opcode_name (walk_state->opcode));
+ ACPI_FUNCTION_TRACE_STR ("ex_opcode_2A_1T_1R",
+ acpi_ps_get_opcode_name (walk_state->opcode));
/*
/* return_desc will contain the remainder */
- status = acpi_ut_divide (&operand[0]->integer.value, &operand[1]->integer.value,
- NULL, &return_desc->integer.value);
+ status = acpi_ut_divide (operand[0]->integer.value,
+ operand[1]->integer.value,
+ NULL,
+ &return_desc->integer.value);
break;
case AML_CONCAT_OP: /* Concatenate (Data1, Data2, Result) */
- /*
- * Convert the second operand if necessary. The first operand
- * determines the type of the second operand, (See the Data Types
- * section of the ACPI specification.) Both object types are
- * guaranteed to be either Integer/String/Buffer by the operand
- * resolution mechanism above.
- */
- switch (ACPI_GET_OBJECT_TYPE (operand[0])) {
- case ACPI_TYPE_INTEGER:
- status = acpi_ex_convert_to_integer (operand[1], &temp_desc, walk_state);
- break;
-
- case ACPI_TYPE_STRING:
- status = acpi_ex_convert_to_string (operand[1], &temp_desc, 16, ACPI_UINT32_MAX, walk_state);
- break;
-
- case ACPI_TYPE_BUFFER:
- status = acpi_ex_convert_to_buffer (operand[1], &temp_desc, walk_state);
- break;
-
- default:
- ACPI_REPORT_ERROR (("Concat - invalid obj type: %X\n",
- ACPI_GET_OBJECT_TYPE (operand[0])));
- status = AE_AML_INTERNAL;
- }
-
- if (ACPI_FAILURE (status)) {
- goto cleanup;
- }
-
- /*
- * Both operands are now known to be the same object type
- * (Both are Integer, String, or Buffer), and we can now perform the
- * concatenation.
- */
- status = acpi_ex_do_concatenate (operand[0], temp_desc, &return_desc, walk_state);
- if (temp_desc != operand[1]) {
- acpi_ut_remove_reference (temp_desc);
- }
+ status = acpi_ex_do_concatenate (operand[0], operand[1],
+ &return_desc, walk_state);
break;
* been converted.) Copy the raw buffer data to a new object of type String.
*/
- /* Get the length of the new string */
-
+ /*
+ * Get the length of the new string. It is the smallest of:
+ * 1) Length of the input buffer
+ * 2) Max length as specified in the to_string operator
+ * 3) Length of input buffer up to a zero byte (null terminator)
+ *
+ * NOTE: A length of zero is ok, and will create a zero-length, null
+ * terminated string.
+ */
length = 0;
- if (operand[1]->integer.value == 0) {
- /* Handle optional length value */
-
- operand[1]->integer.value = ACPI_INTEGER_MAX;
- }
-
while ((length < operand[0]->buffer.length) &&
(length < operand[1]->integer.value) &&
(operand[0]->buffer.pointer[length])) {
length++;
+ if (length > ACPI_MAX_STRING_CONVERSION) {
+ status = AE_AML_STRING_LIMIT;
+ goto cleanup;
+ }
}
- if (length > ACPI_MAX_STRING_CONVERSION) {
- status = AE_AML_STRING_LIMIT;
- goto cleanup;
- }
-
- /* Create the internal return object */
+ /* Allocate a new string object */
- return_desc = acpi_ut_create_internal_object (ACPI_TYPE_STRING);
+ return_desc = acpi_ut_create_string_object (length);
if (!return_desc) {
status = AE_NO_MEMORY;
goto cleanup;
}
- /* Allocate a new string buffer (Length + 1 for null terminator) */
-
- return_desc->string.pointer = ACPI_MEM_CALLOCATE (length + 1);
- if (!return_desc->string.pointer) {
- status = AE_NO_MEMORY;
- goto cleanup;
- }
-
- /* Copy the raw buffer data with no transform */
-
- ACPI_MEMCPY (return_desc->string.pointer, operand[0]->buffer.pointer, length);
+ /* Copy the raw buffer data with no transform. NULL terminated already. */
- /* Set the string length */
-
- return_desc->string.length = (u32) length;
+ ACPI_MEMCPY (return_desc->string.pointer,
+ operand[0]->buffer.pointer, length);
break;
case AML_CONCAT_RES_OP: /* concatenate_res_template (Buffer, Buffer, Result) (ACPI 2.0) */
- status = acpi_ex_concat_template (operand[0], operand[1], &return_desc, walk_state);
+ status = acpi_ex_concat_template (operand[0], operand[1],
+ &return_desc, walk_state);
break;
index = (u32) operand[1]->integer.value;
/*
- * At this point, the Source operand is either a Package or a Buffer
+ * At this point, the Source operand is a Package, Buffer, or String
*/
if (ACPI_GET_OBJECT_TYPE (operand[0]) == ACPI_TYPE_PACKAGE) {
/* Object to be indexed is a Package */
if (index >= operand[0]->package.count) {
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Index value (%X) beyond package end (%X)\n",
+ ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+ "Index value (%X) beyond package end (%X)\n",
index, operand[0]->package.count));
status = AE_AML_PACKAGE_LIMIT;
goto cleanup;
return_desc->reference.where = &operand[0]->package.elements [index];
}
else {
- /* Object to be indexed is a Buffer */
+ /* Object to be indexed is a Buffer/String */
if (index >= operand[0]->buffer.length) {
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Index value (%X) beyond end of buffer (%X)\n",
+ ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
+ "Index value (%X) beyond end of buffer (%X)\n",
index, operand[0]->buffer.length));
status = AE_AML_BUFFER_LIMIT;
goto cleanup;
u8 logical_result = FALSE;
- ACPI_FUNCTION_TRACE_STR ("ex_opcode_2A_0T_1R", acpi_ps_get_opcode_name (walk_state->opcode));
+ ACPI_FUNCTION_TRACE_STR ("ex_opcode_2A_0T_1R",
+ acpi_ps_get_opcode_name (walk_state->opcode));
/* Create the internal return object */
/*
* Execute the Opcode
*/
- if (walk_state->op_info->flags & AML_LOGICAL) /* logical_op (Operand0, Operand1) */ {
- /* Both operands must be of the same type */
-
- if (ACPI_GET_OBJECT_TYPE (operand[0]) !=
- ACPI_GET_OBJECT_TYPE (operand[1])) {
- status = AE_AML_OPERAND_TYPE;
- goto cleanup;
- }
-
- logical_result = acpi_ex_do_logical_op (walk_state->opcode,
- operand[0],
- operand[1]);
+ if (walk_state->op_info->flags & AML_LOGICAL_NUMERIC) /* logical_op (Operand0, Operand1) */ {
+ status = acpi_ex_do_logical_numeric_op (walk_state->opcode,
+ operand[0]->integer.value, operand[1]->integer.value,
+ &logical_result);
+ goto store_logical_result;
+ }
+ else if (walk_state->op_info->flags & AML_LOGICAL) /* logical_op (Operand0, Operand1) */ {
+ status = acpi_ex_do_logical_op (walk_state->opcode, operand[0],
+ operand[1], &logical_result);
goto store_logical_result;
}
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