miden_assembly/instruction/
mod.rs

1use alloc::vec::Vec;
2
3use miden_assembly_syntax::{
4    ast::{ImmU16, Instruction},
5    debuginfo::{Span, Spanned},
6    diagnostics::{RelatedLabel, Report},
7    parser::{IntValue, PushValue},
8};
9use miden_core::{
10    Felt, WORD_SIZE, ZERO,
11    field::PrimeCharacteristicRing,
12    mast::MastNodeId,
13    operations::{Decorator, Operation},
14};
15
16use crate::{
17    Assembler, ProcedureContext, ast::InvokeKind, basic_block_builder::BasicBlockBuilder,
18    push_value_ops,
19};
20
21mod adv_ops;
22mod crypto_ops;
23mod debug;
24mod env_ops;
25mod ext2_ops;
26mod field_ops;
27mod mem_ops;
28mod procedures;
29mod u32_ops;
30
31use self::u32_ops::U32OpMode::*;
32
33/// Instruction Compilation
34impl Assembler {
35    pub(super) fn compile_instruction(
36        &self,
37        instruction: &Span<Instruction>,
38        block_builder: &mut BasicBlockBuilder,
39        proc_ctx: &mut ProcedureContext,
40    ) -> Result<Option<MastNodeId>, Report> {
41        // Determine whether this instruction can create a new node
42        let can_create_node = matches!(
43            instruction.inner(),
44            Instruction::Call(_)
45                | Instruction::SysCall(_)
46                | Instruction::DynExec
47                | Instruction::DynCall
48        );
49
50        // Start tracking the instruction about to be executed; this will allow us to map the
51        // instruction to the sequence of operations which were executed as a part of this
52        // instruction.
53        block_builder.track_instruction(instruction, proc_ctx)?;
54
55        // For node-creating instructions, finalize the AssemblyOp now (it will have 0 cycles
56        // since no operations have been added yet for this instruction).
57        let pending_node_asm_op = if can_create_node {
58            // The returned AssemblyOp will have cycle_count=0, but we'll set it to 1
59            // since the instruction creates exactly one node (call/syscall/dyn).
60            block_builder.set_instruction_cycle_count().map(|mut asm_op| {
61                asm_op.set_num_cycles(1);
62                asm_op
63            })
64        } else {
65            None
66        };
67
68        // Compile the instruction (decorators are now always empty for this path).
69        let opt_new_node_id =
70            self.compile_instruction_impl(instruction, block_builder, proc_ctx, vec![])?;
71
72        // If we have a pending AssemblyOp for a node-creating instruction, register it now.
73        if let (Some(asm_op), Some(node_id)) = (pending_node_asm_op, opt_new_node_id) {
74            block_builder.mast_forest_builder_mut().register_node_asm_op(node_id, asm_op)?;
75        }
76
77        // If we didn't create a node, set the cycle count after compilation.
78        if !can_create_node {
79            let _ = block_builder.set_instruction_cycle_count();
80        }
81
82        Ok(opt_new_node_id)
83    }
84
85    fn compile_instruction_impl(
86        &self,
87        instruction: &Span<Instruction>,
88        block_builder: &mut BasicBlockBuilder,
89        proc_ctx: &mut ProcedureContext,
90        before_enter: Vec<miden_core::mast::DecoratorId>,
91    ) -> Result<Option<MastNodeId>, Report> {
92        use Operation::*;
93
94        let span = instruction.span();
95        match &**instruction {
96            Instruction::Nop => block_builder.push_op(Noop),
97            Instruction::Assert => block_builder.push_op(Assert(ZERO)),
98            Instruction::AssertWithError(err_msg) => {
99                let error_code = block_builder.register_error(err_msg.expect_string());
100                block_builder.push_op(Assert(error_code))
101            },
102            Instruction::AssertEq => block_builder.push_ops([Eq, Assert(ZERO)]),
103            Instruction::AssertEqWithError(err_msg) => {
104                let error_code = block_builder.register_error(err_msg.expect_string());
105                block_builder.push_ops([Eq, Assert(error_code)])
106            },
107            Instruction::AssertEqw => field_ops::assertw(block_builder, ZERO),
108            Instruction::AssertEqwWithError(err_msg) => {
109                let error_code = block_builder.register_error(err_msg.expect_string());
110                field_ops::assertw(block_builder, error_code)
111            },
112            Instruction::Assertz => block_builder.push_ops([Eqz, Assert(ZERO)]),
113            Instruction::AssertzWithError(err_msg) => {
114                let error_code = block_builder.register_error(err_msg.expect_string());
115                block_builder.push_ops([Eqz, Assert(error_code)])
116            },
117
118            Instruction::Add => block_builder.push_op(Add),
119            Instruction::AddImm(imm) => field_ops::add_imm(block_builder, imm.expect_value()),
120            Instruction::Sub => block_builder.push_ops([Neg, Add]),
121            Instruction::SubImm(imm) => field_ops::sub_imm(block_builder, imm.expect_value()),
122            Instruction::Mul => block_builder.push_op(Mul),
123            Instruction::MulImm(imm) => field_ops::mul_imm(block_builder, imm.expect_value()),
124            Instruction::Div => block_builder.push_ops([Inv, Mul]),
125            Instruction::DivImm(imm) => {
126                field_ops::div_imm(block_builder, proc_ctx, imm.expect_spanned_value())?;
127            },
128            Instruction::Neg => block_builder.push_op(Neg),
129            Instruction::Inv => block_builder.push_op(Inv),
130            Instruction::Incr => block_builder.push_op(Incr),
131
132            Instruction::Pow2 => field_ops::pow2(block_builder),
133            Instruction::Exp => field_ops::exp(block_builder, proc_ctx, 64_u8, span)?,
134
135            Instruction::ExpImm(pow) => {
136                field_ops::exp_imm(block_builder, proc_ctx, pow.expect_value(), pow.span())?
137            },
138            Instruction::ExpBitLength(num_pow_bits) => {
139                field_ops::exp(block_builder, proc_ctx, *num_pow_bits, span)?
140            },
141            Instruction::ILog2 => field_ops::ilog2(block_builder),
142
143            Instruction::Not => block_builder.push_op(Not),
144            Instruction::And => block_builder.push_op(And),
145            Instruction::Or => block_builder.push_op(Or),
146            Instruction::Xor => block_builder.push_ops([Dup0, Dup2, Or, MovDn2, And, Not, And]),
147
148            Instruction::Eq => block_builder.push_op(Eq),
149            Instruction::EqImm(imm) => field_ops::eq_imm(block_builder, imm.expect_value()),
150            Instruction::Eqw => field_ops::eqw(block_builder),
151            Instruction::Neq => block_builder.push_ops([Eq, Not]),
152            Instruction::NeqImm(imm) => field_ops::neq_imm(block_builder, imm.expect_value()),
153            Instruction::Lt => field_ops::lt(block_builder),
154            Instruction::Lte => field_ops::lte(block_builder),
155            Instruction::Gt => field_ops::gt(block_builder),
156            Instruction::Gte => field_ops::gte(block_builder),
157            Instruction::IsOdd => field_ops::is_odd(block_builder),
158
159            // ----- ext2 instructions ------------------------------------------------------------
160            Instruction::Ext2Add => ext2_ops::ext2_add(block_builder),
161            Instruction::Ext2Sub => ext2_ops::ext2_sub(block_builder),
162            Instruction::Ext2Mul => ext2_ops::ext2_mul(block_builder),
163            Instruction::Ext2Div => ext2_ops::ext2_div(block_builder),
164            Instruction::Ext2Neg => ext2_ops::ext2_neg(block_builder),
165            Instruction::Ext2Inv => ext2_ops::ext2_inv(block_builder)?,
166
167            // ----- u32 manipulation -------------------------------------------------------------
168            Instruction::U32Test => block_builder.push_ops([Dup0, U32split, Drop, Eqz]),
169            Instruction::U32TestW => u32_ops::u32testw(block_builder),
170            Instruction::U32Assert => block_builder.push_ops([Pad, U32assert2(ZERO), Drop]),
171            Instruction::U32AssertWithError(err_msg) => {
172                let error_code = block_builder.register_error(err_msg.expect_string());
173                block_builder.push_ops([Pad, U32assert2(error_code), Drop])
174            },
175            Instruction::U32Assert2 => block_builder.push_op(U32assert2(ZERO)),
176            Instruction::U32Assert2WithError(err_msg) => {
177                let error_code = block_builder.register_error(err_msg.expect_string());
178                block_builder.push_op(U32assert2(error_code))
179            },
180            Instruction::U32AssertW => u32_ops::u32assertw(block_builder, ZERO),
181            Instruction::U32AssertWWithError(err_msg) => {
182                let error_code = block_builder.register_error(err_msg.expect_string());
183                u32_ops::u32assertw(block_builder, error_code)
184            },
185
186            Instruction::U32Cast => block_builder.push_ops([U32split, Swap, Drop]),
187            Instruction::U32Split => block_builder.push_op(U32split),
188
189            Instruction::U32OverflowingAdd => u32_ops::u32overflowing_add(block_builder, None),
190            Instruction::U32OverflowingAddImm(v) => {
191                u32_ops::u32overflowing_add(block_builder, Some(v.expect_value()))
192            },
193            Instruction::U32WideningAdd => u32_ops::u32widening_add(block_builder, None),
194            Instruction::U32WideningAddImm(v) => {
195                u32_ops::u32widening_add(block_builder, Some(v.expect_value()))
196            },
197            Instruction::U32WrappingAdd => u32_ops::u32add(block_builder, Wrapping, None),
198            Instruction::U32WrappingAddImm(v) => {
199                u32_ops::u32add(block_builder, Wrapping, Some(v.expect_value()))
200            },
201            Instruction::U32OverflowingAdd3 => u32_ops::u32overflowing_add3(block_builder),
202            Instruction::U32WideningAdd3 => u32_ops::u32widening_add3(block_builder),
203            Instruction::U32WrappingAdd3 => u32_ops::u32wrapping_add3(block_builder),
204
205            Instruction::U32OverflowingSub => u32_ops::u32sub(block_builder, Overflowing, None),
206            Instruction::U32OverflowingSubImm(v) => {
207                u32_ops::u32sub(block_builder, Overflowing, Some(v.expect_value()))
208            },
209            Instruction::U32WrappingSub => u32_ops::u32sub(block_builder, Wrapping, None),
210            Instruction::U32WrappingSubImm(v) => {
211                u32_ops::u32sub(block_builder, Wrapping, Some(v.expect_value()))
212            },
213
214            Instruction::U32WideningMul => u32_ops::u32mul(block_builder, Overflowing, None),
215            Instruction::U32WideningMulImm(v) => {
216                u32_ops::u32mul(block_builder, Overflowing, Some(v.expect_value()))
217            },
218            Instruction::U32WrappingMul => u32_ops::u32mul(block_builder, Wrapping, None),
219            Instruction::U32WrappingMulImm(v) => {
220                u32_ops::u32mul(block_builder, Wrapping, Some(v.expect_value()))
221            },
222            Instruction::U32WideningMadd => block_builder.push_op(U32madd),
223            Instruction::U32WrappingMadd => block_builder.push_ops([U32madd, Swap, Drop]),
224
225            Instruction::U32Div => u32_ops::u32div(block_builder, proc_ctx, None)?,
226            Instruction::U32DivImm(v) => {
227                u32_ops::u32div(block_builder, proc_ctx, Some(v.expect_spanned_value()))?
228            },
229            Instruction::U32Mod => u32_ops::u32mod(block_builder, proc_ctx, None)?,
230            Instruction::U32ModImm(v) => {
231                u32_ops::u32mod(block_builder, proc_ctx, Some(v.expect_spanned_value()))?
232            },
233            Instruction::U32DivMod => u32_ops::u32divmod(block_builder, proc_ctx, None)?,
234            Instruction::U32DivModImm(v) => {
235                u32_ops::u32divmod(block_builder, proc_ctx, Some(v.expect_spanned_value()))?
236            },
237            Instruction::U32And => block_builder.push_op(U32and),
238            Instruction::U32Or => block_builder.push_ops([Dup1, Dup1, U32and, Neg, Add, Add]),
239            Instruction::U32Xor => block_builder.push_op(U32xor),
240            Instruction::U32Not => u32_ops::u32not(block_builder),
241            Instruction::U32Shl => u32_ops::u32shl(block_builder, proc_ctx, None, span)?,
242            Instruction::U32ShlImm(v) => {
243                u32_ops::u32shl(block_builder, proc_ctx, Some(v.expect_value()), span)?
244            },
245            Instruction::U32Shr => u32_ops::u32shr(block_builder, proc_ctx, None, span)?,
246            Instruction::U32ShrImm(v) => {
247                u32_ops::u32shr(block_builder, proc_ctx, Some(v.expect_value()), v.span())?
248            },
249            Instruction::U32Rotl => u32_ops::u32rotl(block_builder, proc_ctx, None, span)?,
250            Instruction::U32RotlImm(v) => {
251                u32_ops::u32rotl(block_builder, proc_ctx, Some(v.expect_value()), v.span())?
252            },
253            Instruction::U32Rotr => u32_ops::u32rotr(block_builder, proc_ctx, None, span)?,
254            Instruction::U32RotrImm(v) => {
255                u32_ops::u32rotr(block_builder, proc_ctx, Some(v.expect_value()), v.span())?
256            },
257            Instruction::U32Popcnt => u32_ops::u32popcnt(block_builder),
258            Instruction::U32Clz => u32_ops::u32clz(block_builder),
259            Instruction::U32Ctz => u32_ops::u32ctz(block_builder),
260            Instruction::U32Clo => u32_ops::u32clo(block_builder),
261            Instruction::U32Cto => u32_ops::u32cto(block_builder),
262            Instruction::U32Lt => u32_ops::u32lt(block_builder),
263            Instruction::U32Lte => u32_ops::u32lte(block_builder),
264            Instruction::U32Gt => u32_ops::u32gt(block_builder),
265            Instruction::U32Gte => u32_ops::u32gte(block_builder),
266            Instruction::U32Min => u32_ops::u32min(block_builder),
267            Instruction::U32Max => u32_ops::u32max(block_builder),
268
269            // ----- stack manipulation -----------------------------------------------------------
270            Instruction::Drop => block_builder.push_op(Drop),
271            Instruction::DropW => block_builder.push_ops([Drop; 4]),
272            Instruction::PadW => block_builder.push_ops([Pad; 4]),
273            Instruction::Dup0 => block_builder.push_op(Dup0),
274            Instruction::Dup1 => block_builder.push_op(Dup1),
275            Instruction::Dup2 => block_builder.push_op(Dup2),
276            Instruction::Dup3 => block_builder.push_op(Dup3),
277            Instruction::Dup4 => block_builder.push_op(Dup4),
278            Instruction::Dup5 => block_builder.push_op(Dup5),
279            Instruction::Dup6 => block_builder.push_op(Dup6),
280            Instruction::Dup7 => block_builder.push_op(Dup7),
281            Instruction::Dup8 => block_builder.push_ops([Pad, Dup9, Add]),
282            Instruction::Dup9 => block_builder.push_op(Dup9),
283            Instruction::Dup10 => block_builder.push_ops([Pad, Dup11, Add]),
284            Instruction::Dup11 => block_builder.push_op(Dup11),
285            Instruction::Dup12 => block_builder.push_ops([Pad, Dup13, Add]),
286            Instruction::Dup13 => block_builder.push_op(Dup13),
287            Instruction::Dup14 => block_builder.push_ops([Pad, Dup15, Add]),
288            Instruction::Dup15 => block_builder.push_op(Dup15),
289            Instruction::DupW0 => block_builder.push_ops([Dup3; 4]),
290            Instruction::DupW1 => block_builder.push_ops([Dup7; 4]),
291            Instruction::DupW2 => block_builder.push_ops([Dup11; 4]),
292            Instruction::DupW3 => block_builder.push_ops([Dup15; 4]),
293            Instruction::Swap1 => block_builder.push_op(Swap),
294            Instruction::Swap2 => block_builder.push_ops([Swap, MovUp2]),
295            Instruction::Swap3 => block_builder.push_ops([MovDn2, MovUp3]),
296            Instruction::Swap4 => block_builder.push_ops([MovDn3, MovUp4]),
297            Instruction::Swap5 => block_builder.push_ops([MovDn4, MovUp5]),
298            Instruction::Swap6 => block_builder.push_ops([MovDn5, MovUp6]),
299            Instruction::Swap7 => block_builder.push_ops([MovDn6, MovUp7]),
300            Instruction::Swap8 => block_builder.push_ops([MovDn7, MovUp8]),
301            Instruction::Swap9 => block_builder.push_ops([MovDn8, SwapDW, Swap, SwapDW, MovUp8]),
302            Instruction::Swap10 => {
303                block_builder.push_ops([MovDn8, SwapDW, Swap, MovUp2, SwapDW, MovUp8])
304            },
305            Instruction::Swap11 => {
306                block_builder.push_ops([MovDn8, SwapDW, MovDn2, MovUp3, SwapDW, MovUp8])
307            },
308            Instruction::Swap12 => {
309                block_builder.push_ops([MovDn8, SwapDW, MovDn3, MovUp4, SwapDW, MovUp8])
310            },
311            Instruction::Swap13 => {
312                block_builder.push_ops([MovDn8, SwapDW, MovDn4, MovUp5, SwapDW, MovUp8])
313            },
314            Instruction::Swap14 => {
315                block_builder.push_ops([MovDn8, SwapDW, MovDn5, MovUp6, SwapDW, MovUp8])
316            },
317            Instruction::Swap15 => {
318                block_builder.push_ops([MovDn8, SwapDW, MovDn6, MovUp7, SwapDW, MovUp8])
319            },
320            Instruction::SwapW1 => block_builder.push_op(SwapW),
321            Instruction::SwapW2 => block_builder.push_op(SwapW2),
322            Instruction::SwapW3 => block_builder.push_op(SwapW3),
323            Instruction::SwapDw => block_builder.push_op(SwapDW),
324            Instruction::MovUp2 => block_builder.push_op(MovUp2),
325            Instruction::MovUp3 => block_builder.push_op(MovUp3),
326            Instruction::MovUp4 => block_builder.push_op(MovUp4),
327            Instruction::MovUp5 => block_builder.push_op(MovUp5),
328            Instruction::MovUp6 => block_builder.push_op(MovUp6),
329            Instruction::MovUp7 => block_builder.push_op(MovUp7),
330            Instruction::MovUp8 => block_builder.push_op(MovUp8),
331            Instruction::MovUp9 => block_builder.push_ops([SwapDW, Swap, SwapDW, MovUp8]),
332            Instruction::MovUp10 => block_builder.push_ops([SwapDW, MovUp2, SwapDW, MovUp8]),
333            Instruction::MovUp11 => block_builder.push_ops([SwapDW, MovUp3, SwapDW, MovUp8]),
334            Instruction::MovUp12 => block_builder.push_ops([SwapDW, MovUp4, SwapDW, MovUp8]),
335            Instruction::MovUp13 => block_builder.push_ops([SwapDW, MovUp5, SwapDW, MovUp8]),
336            Instruction::MovUp14 => block_builder.push_ops([SwapDW, MovUp6, SwapDW, MovUp8]),
337            Instruction::MovUp15 => block_builder.push_ops([SwapDW, MovUp7, SwapDW, MovUp8]),
338            Instruction::MovUpW2 => block_builder.push_ops([SwapW, SwapW2]),
339            Instruction::MovUpW3 => block_builder.push_ops([SwapW, SwapW2, SwapW3]),
340            Instruction::MovDn2 => block_builder.push_op(MovDn2),
341            Instruction::MovDn3 => block_builder.push_op(MovDn3),
342            Instruction::MovDn4 => block_builder.push_op(MovDn4),
343            Instruction::MovDn5 => block_builder.push_op(MovDn5),
344            Instruction::MovDn6 => block_builder.push_op(MovDn6),
345            Instruction::MovDn7 => block_builder.push_op(MovDn7),
346            Instruction::MovDn8 => block_builder.push_op(MovDn8),
347            Instruction::MovDn9 => block_builder.push_ops([MovDn8, SwapDW, Swap, SwapDW]),
348            Instruction::MovDn10 => block_builder.push_ops([MovDn8, SwapDW, MovDn2, SwapDW]),
349            Instruction::MovDn11 => block_builder.push_ops([MovDn8, SwapDW, MovDn3, SwapDW]),
350            Instruction::MovDn12 => block_builder.push_ops([MovDn8, SwapDW, MovDn4, SwapDW]),
351            Instruction::MovDn13 => block_builder.push_ops([MovDn8, SwapDW, MovDn5, SwapDW]),
352            Instruction::MovDn14 => block_builder.push_ops([MovDn8, SwapDW, MovDn6, SwapDW]),
353            Instruction::MovDn15 => block_builder.push_ops([MovDn8, SwapDW, MovDn7, SwapDW]),
354            Instruction::MovDnW2 => block_builder.push_ops([SwapW2, SwapW]),
355            Instruction::MovDnW3 => block_builder.push_ops([SwapW3, SwapW2, SwapW]),
356            Instruction::Reversew => push_reversew(block_builder),
357            Instruction::Reversedw => {
358                push_reversew(block_builder);
359                block_builder.push_op(SwapW);
360                push_reversew(block_builder);
361            },
362
363            Instruction::CSwap => block_builder.push_op(CSwap),
364            Instruction::CSwapW => block_builder.push_op(CSwapW),
365            Instruction::CDrop => block_builder.push_ops([CSwap, Drop]),
366            Instruction::CDropW => block_builder.push_ops([CSwapW, Drop, Drop, Drop, Drop]),
367
368            // ----- input / output instructions --------------------------------------------------
369            Instruction::Push(imm) => match (*imm).expect_value() {
370                PushValue::Int(value) => match value {
371                    IntValue::U8(v) => env_ops::push_one(Felt::from_u8(v), block_builder),
372                    IntValue::U16(v) => env_ops::push_one(Felt::from_u16(v), block_builder),
373                    IntValue::U32(v) => env_ops::push_one(Felt::from_u32(v), block_builder),
374                    IntValue::Felt(v) => env_ops::push_one(v, block_builder),
375                },
376                PushValue::Word(v) => env_ops::push_word(&v.0, block_builder),
377            },
378            Instruction::PushSlice(imm, range) => {
379                env_ops::push_word_slice(imm, range, block_builder)?
380            },
381            Instruction::PushFeltList(imms) => env_ops::push_many(imms, block_builder),
382            Instruction::Sdepth => block_builder.push_op(SDepth),
383            Instruction::Caller => env_ops::caller(block_builder),
384            Instruction::Clk => block_builder.push_op(Clk),
385            Instruction::AdvPipe => block_builder.push_op(Pipe),
386            Instruction::AdvPush(n) => {
387                adv_ops::adv_push(block_builder, proc_ctx, n.expect_value(), n.span())?
388            },
389            Instruction::AdvLoadW => block_builder.push_op(AdvPopW),
390
391            Instruction::MemStream => block_builder.push_op(MStream),
392            Instruction::Locaddr(v) => {
393                env_ops::locaddr(block_builder, v.expect_value(), proc_ctx, span)?
394            },
395            Instruction::MemLoad => {
396                mem_ops::mem_read(block_builder, proc_ctx, None, false, true, span)?
397            },
398            Instruction::MemLoadImm(v) => mem_ops::mem_read(
399                block_builder,
400                proc_ctx,
401                Some(v.expect_value()),
402                false,
403                true,
404                span,
405            )?,
406            Instruction::MemLoadWBe => {
407                mem_ops::mem_read(block_builder, proc_ctx, None, false, false, span)?;
408                push_reversew(block_builder);
409            },
410            Instruction::MemLoadWLe => {
411                mem_ops::mem_read(block_builder, proc_ctx, None, false, false, span)?
412            },
413            Instruction::MemLoadWBeImm(v) => {
414                mem_ops::mem_read(
415                    block_builder,
416                    proc_ctx,
417                    Some(v.expect_value()),
418                    false,
419                    false,
420                    span,
421                )?;
422                push_reversew(block_builder);
423            },
424            Instruction::MemLoadWLeImm(v) => mem_ops::mem_read(
425                block_builder,
426                proc_ctx,
427                Some(v.expect_value()),
428                false,
429                false,
430                span,
431            )?,
432            Instruction::LocLoad(v) => mem_ops::mem_read(
433                block_builder,
434                proc_ctx,
435                Some(v.expect_value() as u32),
436                true,
437                true,
438                span,
439            )?,
440            Instruction::LocLoadWBe(v) => {
441                let local_addr = validate_local_word_alignment(v, proc_ctx)?;
442                mem_ops::mem_read(
443                    block_builder,
444                    proc_ctx,
445                    Some(local_addr),
446                    true,
447                    false,
448                    instruction.span(),
449                )?;
450                push_reversew(block_builder);
451            },
452            Instruction::LocLoadWLe(v) => {
453                let local_addr = validate_local_word_alignment(v, proc_ctx)?;
454                mem_ops::mem_read(
455                    block_builder,
456                    proc_ctx,
457                    Some(local_addr),
458                    true,
459                    false,
460                    instruction.span(),
461                )?
462            },
463            Instruction::MemStore => block_builder.push_ops([MStore, Drop]),
464            Instruction::MemStoreImm(v) => mem_ops::mem_write_imm(
465                block_builder,
466                proc_ctx,
467                v.expect_value(),
468                false,
469                true,
470                span,
471            )?,
472            Instruction::MemStoreWBe => {
473                block_builder.push_op(MovDn4);
474                push_reversew(block_builder);
475                block_builder.push_op(MovUp4);
476                block_builder.push_op(MStoreW);
477                push_reversew(block_builder);
478            },
479            Instruction::MemStoreWLe => block_builder.push_ops([MStoreW]),
480            Instruction::MemStoreWBeImm(v) => {
481                push_reversew(block_builder);
482                mem_ops::mem_write_imm(
483                    block_builder,
484                    proc_ctx,
485                    v.expect_value(),
486                    false,
487                    false,
488                    span,
489                )?;
490                push_reversew(block_builder);
491            },
492            Instruction::MemStoreWLeImm(v) => mem_ops::mem_write_imm(
493                block_builder,
494                proc_ctx,
495                v.expect_value(),
496                false,
497                false,
498                span,
499            )?,
500            Instruction::LocStore(v) => mem_ops::mem_write_imm(
501                block_builder,
502                proc_ctx,
503                v.expect_value() as u32,
504                true,
505                true,
506                span,
507            )?,
508            Instruction::LocStoreWBe(v) => {
509                let local_addr = validate_local_word_alignment(v, proc_ctx)?;
510                push_reversew(block_builder);
511                mem_ops::mem_write_imm(block_builder, proc_ctx, local_addr, true, false, span)?;
512                push_reversew(block_builder)
513            },
514            Instruction::LocStoreWLe(v) => {
515                let local_addr = validate_local_word_alignment(v, proc_ctx)?;
516                mem_ops::mem_write_imm(block_builder, proc_ctx, local_addr, true, false, span)?
517            },
518            Instruction::SysEvent(system_event) => {
519                block_builder.push_system_event(system_event.into())
520            },
521
522            // ----- cryptographic instructions ---------------------------------------------------
523            Instruction::Hash => crypto_ops::hash(block_builder),
524            Instruction::HPerm => block_builder.push_op(HPerm),
525            Instruction::HMerge => crypto_ops::hmerge(block_builder),
526            Instruction::MTreeGet => crypto_ops::mtree_get(block_builder),
527            Instruction::MTreeSet => crypto_ops::mtree_set(block_builder)?,
528            Instruction::MTreeMerge => crypto_ops::mtree_merge(block_builder),
529            Instruction::MTreeVerify => block_builder.push_op(MpVerify(ZERO)),
530            Instruction::MTreeVerifyWithError(err_msg) => {
531                let error_code = block_builder.register_error(err_msg.expect_string());
532                block_builder.push_op(MpVerify(error_code))
533            },
534            Instruction::CryptoStream => block_builder.push_op(CryptoStream),
535
536            // ----- STARK proof verification -----------------------------------------------------
537            Instruction::FriExt2Fold4 => block_builder.push_op(FriE2F4),
538            Instruction::HornerBase => block_builder.push_op(HornerBase),
539            Instruction::HornerExt => block_builder.push_op(HornerExt),
540            Instruction::EvalCircuit => block_builder.push_op(EvalCircuit),
541            Instruction::LogPrecompile => block_builder.push_op(LogPrecompile),
542
543            // ----- exec/call instructions -------------------------------------------------------
544            Instruction::Exec(callee) => {
545                return self
546                    .invoke(
547                        InvokeKind::Exec,
548                        callee,
549                        proc_ctx.id(),
550                        block_builder.mast_forest_builder_mut(),
551                        before_enter,
552                    )
553                    .map(Into::into);
554            },
555            Instruction::Call(callee) => {
556                return self
557                    .invoke(
558                        InvokeKind::Call,
559                        callee,
560                        proc_ctx.id(),
561                        block_builder.mast_forest_builder_mut(),
562                        before_enter,
563                    )
564                    .map(Into::into);
565            },
566            Instruction::SysCall(callee) => {
567                return self
568                    .invoke(
569                        InvokeKind::SysCall,
570                        callee,
571                        proc_ctx.id(),
572                        block_builder.mast_forest_builder_mut(),
573                        before_enter,
574                    )
575                    .map(Into::into);
576            },
577            Instruction::DynExec => {
578                return self.dynexec(block_builder.mast_forest_builder_mut(), before_enter);
579            },
580            Instruction::DynCall => {
581                return self.dyncall(block_builder.mast_forest_builder_mut(), before_enter);
582            },
583            Instruction::ProcRef(callee) => self.procref(callee, proc_ctx.id(), block_builder)?,
584
585            // ----- debug decorators -------------------------------------------------------------
586            Instruction::Debug(options) => {
587                block_builder
588                    .push_decorator(Decorator::Debug(debug::compile_options(options, proc_ctx)?))?;
589            },
590
591            // ----- emit instruction -------------------------------------------------------------
592            // emit: reads event ID from top of stack and execute the corresponding handler.
593            Instruction::Emit => {
594                block_builder.push_ops([Operation::Emit]);
595            },
596            // emit.<id>: expands to `push.<id>, emit, drop` sequence leaving the stack unchanged.
597            Instruction::EmitImm(event_id) => {
598                let event_id_value = event_id.expect_value();
599                block_builder.push_ops([
600                    Operation::Push(event_id_value),
601                    Operation::Emit,
602                    Operation::Drop,
603                ]);
604            },
605
606            // ----- trace instruction ------------------------------------------------------------
607            Instruction::Trace(trace_id) => {
608                block_builder.push_decorator(Decorator::Trace(trace_id.expect_value()))?;
609            },
610        }
611
612        Ok(None)
613    }
614}
615
616// HELPER FUNCTIONS
617// ================================================================================================
618
619/// This is a helper function that appends a PUSH operation to the span block which puts the
620/// provided u32 value onto the stack.
621///
622/// When the value is 0, PUSH operation is replaced with PAD. When the value is 1, PUSH operation
623/// is replaced with PAD INCR because in most cases this will be more efficient than doing a PUSH.
624fn push_u32_value(span_builder: &mut BasicBlockBuilder, value: u32) {
625    use Operation::*;
626
627    if value == 0 {
628        span_builder.push_op(Pad);
629    } else if value == 1 {
630        span_builder.push_op(Pad);
631        span_builder.push_op(Incr);
632    } else {
633        span_builder.push_op(Push(Felt::from_u32(value)));
634    }
635}
636
637/// This is a helper function that appends a PUSH operation to the span block which puts the
638/// provided field element onto the stack.
639///
640/// When the value is 0, PUSH operation is replaced with PAD. When the value is 1, PUSH operation
641/// is replaced with PAD INCR because in most cases this will be more efficient than doing a PUSH.
642fn push_felt(span_builder: &mut BasicBlockBuilder, value: Felt) {
643    span_builder.push_ops(push_value_ops(value));
644}
645
646/// Helper function that appends operations to reverse the order of the top 4 elements
647/// on the stack, used for little-endian memory instructions.
648///
649/// The instruction takes 3 cycles to execute and transforms the stack as follows:
650/// [a, b, c, d, ...] -> [d, c, b, a, ...].
651fn push_reversew(block_builder: &mut BasicBlockBuilder) {
652    use Operation::*;
653
654    block_builder.push_ops([MovDn3, Swap, MovUp2]);
655}
656
657/// Helper function that validates a local word address is properly word-aligned.
658///
659/// Returns the validated address as u32 or an error if the address is not a multiple of 4.
660fn validate_local_word_alignment(
661    local_addr: &ImmU16,
662    proc_ctx: &ProcedureContext,
663) -> Result<u32, Report> {
664    let addr = local_addr.expect_value();
665    if !addr.is_multiple_of(WORD_SIZE as u16) {
666        return Err(RelatedLabel::error("invalid local word index")
667            .with_help("the index to a local word must be a multiple of 4")
668            .with_labeled_span(local_addr.span(), "this index is not word-aligned")
669            .with_source_file(proc_ctx.source_manager().get(proc_ctx.span().source_id()).ok())
670            .into());
671    }
672    Ok(addr as u32)
673}
miden_assembly/instruction/mod.rs

miden_assembly/instruction/
mod.rs
