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feat: BitScrambler: Add support for addcti instruction as found in ESP32-C5

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Jeroen Domburg
2025-02-12 16:34:14 +08:00
parent 68b79fc138
commit 3aaaa2203a
12 changed files with 169 additions and 21 deletions
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27
docs/en/api-reference/peripherals/bitscrambler.rst
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@@ -77,13 +77,26 @@ Sub-instructions
An opcode - The opcodes are fully documented in the Technical Reference manual; here's a summary.
- ``LOOP(A|B) end_val ctr_add tgt`` - If the selected counter (A or B) ls smaller than end_val, add ``ctr_add`` to the selected counter (A or B) and jump to the label ``tgt``. If not, continue execution.
- ``ADD(A|B)[H|L] val`` - Add ``val`` to the selected counter. If 'H' or 'L' is appended, only the high or low 8-bit, respectively, of the counter is written back.
- ``IF[N] source_bit tgt`` - If the source bit `source_bit` is one (for IF) or zero (for IFN), jump to the label ``tgt``.
- ``LDCTD(A|B)[H|L] val`` - Load ``val`` into the indicated counter. If H or L is appended, only the high or low 8-bit, respectively, will be updated.
- ``LDCTI(A|B)[H|L]`` - Load the indicated counter (A or B) with bits 16-31 sent to the output register. If H or L is appended, only the high or low 8-bit, respectively, will be updated.
- ``JMP tgt`` - Unconditional jump to label ``tgt``. This is equal to ``IF h tgt``.
- ``NOP`` - No operation. This is equal to ``ADDA 0``.
.. only:: esp32p4
- ``LOOP(A|B) end_val ctr_add tgt`` - If the selected counter (A or B) ls smaller than end_val, add ``ctr_add`` to the selected counter (A or B) and jump to the label ``tgt``. If not, continue execution.
- ``ADD(A|B)[H|L] val`` - Add ``val`` to the selected counter. If 'H' or 'L' is appended, only the high or low 8-bit, respectively, of the counter is written back.
- ``IF[N] source_bit tgt`` - If the source bit `source_bit` is one (for IF) or zero (for IFN), jump to the label ``tgt``.
- ``LDCTD(A|B)[H|L] val`` - Load ``val`` into the indicated counter. If H or L is appended, only the high or low 8-bit, respectively, will be updated.
- ``LDCTI(A|B)[H|L]`` - Load the indicated counter (A or B) with bits 16-31 sent to the output register. If H or L is appended, only the high or low 8-bit, respectively, will be updated.
- ``JMP tgt`` - Unconditional jump to label ``tgt``. This is equal to ``IF h tgt``.
- ``NOP`` - No operation. This is equal to ``ADDA 0``.
.. only:: esp32c5
- ``LOOP(A|B) end_val ctr_add tgt`` - If the selected counter (A or B) ls smaller than end_val, add ``ctr_add`` to the selected counter (A or B) and jump to the label ``tgt``. If not, continue execution.
- ``ADD(A|B)[H|L] val`` - Add ``val`` to the selected counter. If 'H' or 'L' is appended, only the high or low 8-bit, respectively, of the counter is written back.
- ``IF[N] source_bit tgt`` - If the source bit `source_bit` is one (for IF) or zero (for IFN), jump to the label ``tgt``.
- ``LDCTD(A|B)[H|L] val`` - Load ``val`` into the indicated counter. If H or L is appended, only the high or low 8-bit, respectively, will be updated.
- ``LDCTI(A|B)[H|L]`` - Load the indicated counter (A or B) with bits 16-31 sent to the output register. If H or L is appended, only the high or low 8-bit, respectively, will be updated.
- ``ADDCTI(A|B)[H|L]`` - Add bits 16-31 sent to the output register to the indicated counter (A or B) . If H or L is appended, only the high or low 8-bit, respectively, will be evaluated and updated.
- ``JMP tgt`` - Unconditional jump to label ``tgt``. This is equal to ``IF h tgt``.
- ``NOP`` - No operation. This is equal to ``ADDA 0``.
Note that an instruction bundle can only contain one opcode, one ``read``, and one ``write``. It can contain multiple ``set`` instructions, although multiple ``set`` instruction cannot assign a value to the same output bits.