[gem5-dev] Change in gem5/gem5[master]: systemc: Add the sc_nbdefs.hh header from Accellera.
Gabe Black has submitted this change and it was merged. (
https://gem5-review.googlesource.com/10826 )
Change subject: systemc: Add the sc_nbdefs.hh header from Accellera.
..
systemc: Add the sc_nbdefs.hh header from Accellera.
This header defines the uint64 type alias needed for the sc_time class.
Change-Id: I7793dbfb98001796c8c8fe24f69fe7868249ff85
Reviewed-on: https://gem5-review.googlesource.com/10826
Reviewed-by: Jason Lowe-Power
Maintainer: Gabe Black
---
A src/systemc/dt/int/sc_nbdefs.hh
1 file changed, 168 insertions(+), 0 deletions(-)
Approvals:
Jason Lowe-Power: Looks good to me, approved
Gabe Black: Looks good to me, approved
diff --git a/src/systemc/dt/int/sc_nbdefs.hh
b/src/systemc/dt/int/sc_nbdefs.hh
new file mode 100644
index 000..48d735a
--- /dev/null
+++ b/src/systemc/dt/int/sc_nbdefs.hh
@@ -0,0 +1,168 @@
+/*
+
+ Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
+ more contributor license agreements. See the NOTICE file distributed
+ with this work for additional information regarding copyright ownership.
+ Accellera licenses this file to you under the Apache License, Version 2.0
+ (the "License"); you may not use this file except in compliance with the
+ License. You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ implied. See the License for the specific language governing
+ permissions and limitations under the License.
+
+
*/
+
+/*
+ sc_nbdefs.h -- Top level header file for arbitrary precision
signed/unsigned
+ arithmetic. This file defines all the constants needed.
+
*/
+
+#ifndef __SYSTEMC_DT_SC_NBDEFS_H__
+#define __SYSTEMC_DT_SC_NBDEFS_H__
+
+#include
+
+#include
+
+namespace sc_dt
+{
+
+//
+// ENUM : sc_numrep
+//
+// Enumeration of number representations for character string conversion.
+//
+
+enum sc_numrep
+{
+SC_NOBASE = 0,
+SC_BIN = 2,
+SC_OCT = 8,
+SC_DEC = 10,
+SC_HEX = 16,
+SC_BIN_US,
+SC_BIN_SM,
+SC_OCT_US,
+SC_OCT_SM,
+SC_HEX_US,
+SC_HEX_SM,
+SC_CSD
+};
+
+
+// Sign of a number:
+#define SC_NEG -1 // Negative number
+#define SC_ZERO 0 // Zero
+#define SC_POS 1 // Positive number
+#define SC_NOSIGN 2 // Uninitialized sc_signed number
+
+typedef unsigned char uchar;
+
+// A small_type number is at least a char. Defining an int is probably
+// better for alignment.
+typedef int small_type;
+
+// Attributes of a byte.
+#define BITS_PER_BYTE 8
+#define BYTE_RADIX 256
+#define BYTE_MASK 255
+
+// LOG2_BITS_PER_BYTE = log2(BITS_PER_BYTE), assuming that
+// BITS_PER_BYTE is a power of 2.
+#define LOG2_BITS_PER_BYTE 3
+
+// Attributes of the unsigned long. These definitions are used mainly in
+// the functions that are aware of the internal representation of digits,
+// e.g., get/set_packed_rep().
+#define BYTES_PER_DIGIT_TYPE 4
+#define BITS_PER_DIGIT_TYPE 32
+
+// Attributes of a digit, i.e., unsigned long less the overflow bits.
+#define BYTES_PER_DIGIT 4
+#define BITS_PER_DIGIT 30
+#define DIGIT_RADIX (1ul << BITS_PER_DIGIT)
+#define DIGIT_MASK (DIGIT_RADIX - 1)
+// Make sure that BYTES_PER_DIGIT = ceil(BITS_PER_DIGIT / BITS_PER_BYTE).
+
+// Similar attributes for the half of a digit. Note that
+// HALF_DIGIT_RADIX is equal to the square root of DIGIT_RADIX. These
+// definitions are used mainly in the multiplication routines.
+#define BITS_PER_HALF_DIGIT (BITS_PER_DIGIT / 2)
+#define HALF_DIGIT_RADIX (1ul << BITS_PER_HALF_DIGIT)
+#define HALF_DIGIT_MASK (HALF_DIGIT_RADIX - 1)
+
+// DIV_CEIL2(x, y) = ceil(x / y). x and y are positive numbers.
+#define DIV_CEIL2(x, y) (((x) - 1) / (y) + 1)
+
+// DIV_CEIL(x) = ceil(x / BITS_PER_DIGIT) = the number of digits to
+// store x bits. x is a positive number.
+#define DIV_CEIL(x) DIV_CEIL2(x, BITS_PER_DIGIT)
+
+#ifdef SC_MAX_NBITS
+static const int MAX_NDIGITS = DIV_CEIL(SC_MAX_NBITS) + 2;
+// Consider a number with x bits another with y bits. The maximum
+// number of bits happens when we multiply them. The result will have
+// (x + y) bits. Assume that x + y <= SC_MAX_NBITS. Then, DIV_CEIL(x) +
+// DIV_CEIL(y) <= DIV_CEIL(SC_MAX_NBITS) + 2. This is the reason for +2
+// above. With this change, MAX_NDIGITS must be enough to hold the
[gem5-dev] Change in gem5/gem5[master]: systemc: Add the sc_nbdefs.hh header from Accellera.
Hello Jason Lowe-Power, Matthias Jung, Andreas Sandberg, I'd like you to reexamine a change. Please visit https://gem5-review.googlesource.com/10826 to look at the new patch set (#4). Change subject: systemc: Add the sc_nbdefs.hh header from Accellera. .. systemc: Add the sc_nbdefs.hh header from Accellera. This header defines the uint64 type alias needed for the sc_time class. Change-Id: I7793dbfb98001796c8c8fe24f69fe7868249ff85 --- A src/systemc/dt/int/sc_nbdefs.hh 1 file changed, 168 insertions(+), 0 deletions(-) -- To view, visit https://gem5-review.googlesource.com/10826 To unsubscribe, or for help writing mail filters, visit https://gem5-review.googlesource.com/settings Gerrit-Project: public/gem5 Gerrit-Branch: master Gerrit-Change-Id: I7793dbfb98001796c8c8fe24f69fe7868249ff85 Gerrit-Change-Number: 10826 Gerrit-PatchSet: 4 Gerrit-Owner: Gabe Black Gerrit-Reviewer: Andreas Sandberg Gerrit-Reviewer: Gabe Black Gerrit-Reviewer: Jason Lowe-Power Gerrit-Reviewer: Matthias Jung Gerrit-MessageType: newpatchset ___ gem5-dev mailing list gem5-dev@gem5.org http://m5sim.org/mailman/listinfo/gem5-dev
[gem5-dev] Change in gem5/gem5[master]: systemc: Add the sc_nbdefs.hh header from Accellera.
Hello Jason Lowe-Power, Matthias Jung, Andreas Sandberg, I'd like you to reexamine a change. Please visit https://gem5-review.googlesource.com/10826 to look at the new patch set (#2). Change subject: systemc: Add the sc_nbdefs.hh header from Accellera. .. systemc: Add the sc_nbdefs.hh header from Accellera. This header defines the uint64 type alias needed for the sc_time class. Change-Id: I7793dbfb98001796c8c8fe24f69fe7868249ff85 --- A src/systemc/dt/int/sc_nbdefs.hh 1 file changed, 168 insertions(+), 0 deletions(-) -- To view, visit https://gem5-review.googlesource.com/10826 To unsubscribe, or for help writing mail filters, visit https://gem5-review.googlesource.com/settings Gerrit-Project: public/gem5 Gerrit-Branch: master Gerrit-Change-Id: I7793dbfb98001796c8c8fe24f69fe7868249ff85 Gerrit-Change-Number: 10826 Gerrit-PatchSet: 2 Gerrit-Owner: Gabe Black Gerrit-Reviewer: Andreas Sandberg Gerrit-Reviewer: Gabe Black Gerrit-Reviewer: Jason Lowe-Power Gerrit-Reviewer: Matthias Jung Gerrit-MessageType: newpatchset ___ gem5-dev mailing list gem5-dev@gem5.org http://m5sim.org/mailman/listinfo/gem5-dev
[gem5-dev] Change in gem5/gem5[master]: systemc: Add the sc_nbdefs.hh header from Accellera.
Gabe Black has uploaded this change for review. (
https://gem5-review.googlesource.com/10826
Change subject: systemc: Add the sc_nbdefs.hh header from Accellera.
..
systemc: Add the sc_nbdefs.hh header from Accellera.
This header defines the uint64 type alias needed for the sc_time class.
Change-Id: I7793dbfb98001796c8c8fe24f69fe7868249ff85
---
A src/systemc/dt/int/sc_nbdefs.hh
1 file changed, 168 insertions(+), 0 deletions(-)
diff --git a/src/systemc/dt/int/sc_nbdefs.hh
b/src/systemc/dt/int/sc_nbdefs.hh
new file mode 100644
index 000..48d735a
--- /dev/null
+++ b/src/systemc/dt/int/sc_nbdefs.hh
@@ -0,0 +1,168 @@
+/*
+
+ Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
+ more contributor license agreements. See the NOTICE file distributed
+ with this work for additional information regarding copyright ownership.
+ Accellera licenses this file to you under the Apache License, Version 2.0
+ (the "License"); you may not use this file except in compliance with the
+ License. You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ implied. See the License for the specific language governing
+ permissions and limitations under the License.
+
+
*/
+
+/*
+ sc_nbdefs.h -- Top level header file for arbitrary precision
signed/unsigned
+ arithmetic. This file defines all the constants needed.
+
*/
+
+#ifndef __SYSTEMC_DT_SC_NBDEFS_H__
+#define __SYSTEMC_DT_SC_NBDEFS_H__
+
+#include
+
+#include
+
+namespace sc_dt
+{
+
+//
+// ENUM : sc_numrep
+//
+// Enumeration of number representations for character string conversion.
+//
+
+enum sc_numrep
+{
+SC_NOBASE = 0,
+SC_BIN = 2,
+SC_OCT = 8,
+SC_DEC = 10,
+SC_HEX = 16,
+SC_BIN_US,
+SC_BIN_SM,
+SC_OCT_US,
+SC_OCT_SM,
+SC_HEX_US,
+SC_HEX_SM,
+SC_CSD
+};
+
+
+// Sign of a number:
+#define SC_NEG -1 // Negative number
+#define SC_ZERO 0 // Zero
+#define SC_POS 1 // Positive number
+#define SC_NOSIGN 2 // Uninitialized sc_signed number
+
+typedef unsigned char uchar;
+
+// A small_type number is at least a char. Defining an int is probably
+// better for alignment.
+typedef int small_type;
+
+// Attributes of a byte.
+#define BITS_PER_BYTE 8
+#define BYTE_RADIX 256
+#define BYTE_MASK 255
+
+// LOG2_BITS_PER_BYTE = log2(BITS_PER_BYTE), assuming that
+// BITS_PER_BYTE is a power of 2.
+#define LOG2_BITS_PER_BYTE 3
+
+// Attributes of the unsigned long. These definitions are used mainly in
+// the functions that are aware of the internal representation of digits,
+// e.g., get/set_packed_rep().
+#define BYTES_PER_DIGIT_TYPE 4
+#define BITS_PER_DIGIT_TYPE 32
+
+// Attributes of a digit, i.e., unsigned long less the overflow bits.
+#define BYTES_PER_DIGIT 4
+#define BITS_PER_DIGIT 30
+#define DIGIT_RADIX (1ul << BITS_PER_DIGIT)
+#define DIGIT_MASK (DIGIT_RADIX - 1)
+// Make sure that BYTES_PER_DIGIT = ceil(BITS_PER_DIGIT / BITS_PER_BYTE).
+
+// Similar attributes for the half of a digit. Note that
+// HALF_DIGIT_RADIX is equal to the square root of DIGIT_RADIX. These
+// definitions are used mainly in the multiplication routines.
+#define BITS_PER_HALF_DIGIT (BITS_PER_DIGIT / 2)
+#define HALF_DIGIT_RADIX (1ul << BITS_PER_HALF_DIGIT)
+#define HALF_DIGIT_MASK (HALF_DIGIT_RADIX - 1)
+
+// DIV_CEIL2(x, y) = ceil(x / y). x and y are positive numbers.
+#define DIV_CEIL2(x, y) (((x) - 1) / (y) + 1)
+
+// DIV_CEIL(x) = ceil(x / BITS_PER_DIGIT) = the number of digits to
+// store x bits. x is a positive number.
+#define DIV_CEIL(x) DIV_CEIL2(x, BITS_PER_DIGIT)
+
+#ifdef SC_MAX_NBITS
+static const int MAX_NDIGITS = DIV_CEIL(SC_MAX_NBITS) + 2;
+// Consider a number with x bits another with y bits. The maximum
+// number of bits happens when we multiply them. The result will have
+// (x + y) bits. Assume that x + y <= SC_MAX_NBITS. Then, DIV_CEIL(x) +
+// DIV_CEIL(y) <= DIV_CEIL(SC_MAX_NBITS) + 2. This is the reason for +2
+// above. With this change, MAX_NDIGITS must be enough to hold the
+// result of any operation.
+#endif
+
+// Support for "digit" vectors used to hold the values of sc_signed,
+// sc_unsigned, sc_bv_base, and sc_lv_base data types. This type is also
used
+// in the concatenation
