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    mast::MastNodeId,
12    operations::{AssemblyOp, Decorator, Operation},
13};
14
15use crate::{
16    Assembler, ProcedureContext, ast::InvokeKind, basic_block_builder::BasicBlockBuilder,
17    push_value_ops,
18};
19
20mod crypto_ops;
21mod debug;
22mod env_ops;
23mod ext2_ops;
24mod field_ops;
25mod mem_ops;
26mod procedures;
27mod u32_ops;
28
29use self::u32_ops::U32OpMode::*;
30
31/// Instruction Compilation
32impl Assembler {
33    pub(super) fn compile_instruction(
34        &self,
35        instruction: &Span<Instruction>,
36        block_builder: &mut BasicBlockBuilder,
37        proc_ctx: &mut ProcedureContext,
38    ) -> Result<Option<MastNodeId>, Report> {
39        // Determine whether this instruction can create a new node
40        let can_create_node = matches!(
41            instruction.inner(),
42            Instruction::Call(_)
43                | Instruction::SysCall(_)
44                | Instruction::DynExec
45                | Instruction::DynCall
46        );
47
48        // Start tracking the instruction about to be executed; this will allow us to map the
49        // instruction to the sequence of operations which were executed as a part of this
50        // instruction.
51        block_builder.track_instruction(instruction, proc_ctx)?;
52
53        // For node-creating instructions, finalize the AssemblyOp now (it will have 0 cycles
54        // since no operations have been added yet for this instruction).
55        let pending_node_asm_op = if can_create_node {
56            // The returned AssemblyOp will have cycle_count=0, but we'll set it to 1
57            // since the instruction creates exactly one node (call/syscall/dyn).
58            block_builder.set_instruction_cycle_count().map(|mut asm_op| {
59                asm_op.set_num_cycles(1);
60                asm_op
61            })
62        } else {
63            None
64        };
65
66        // Compile the instruction (decorators are now always empty for this path).
67        let opt_new_node_id = self.compile_instruction_impl(
68            instruction,
69            block_builder,
70            proc_ctx,
71            vec![],
72            pending_node_asm_op,
73        )?;
74
75        // If we didn't create a node, set the cycle count after compilation.
76        if !can_create_node {
77            let _ = block_builder.set_instruction_cycle_count();
78        }
79
80        Ok(opt_new_node_id)
81    }
82
83    fn compile_instruction_impl(
84        &self,
85        instruction: &Span<Instruction>,
86        block_builder: &mut BasicBlockBuilder,
87        proc_ctx: &mut ProcedureContext,
88        before_enter: Vec<miden_core::mast::DecoratorId>,
89        node_asm_op: Option<AssemblyOp>,
90    ) -> Result<Option<MastNodeId>, Report> {
91        use Operation::*;
92
93        let span = instruction.span();
94        match &**instruction {
95            Instruction::Nop => block_builder.push_op(Noop),
96            Instruction::Assert => block_builder.push_op(Assert(ZERO)),
97            Instruction::AssertWithError(err_msg) => {
98                let error_code = block_builder.register_error(err_msg.expect_string());
99                block_builder.push_op(Assert(error_code))
100            },
101            Instruction::AssertEq => block_builder.push_ops([Eq, Assert(ZERO)]),
102            Instruction::AssertEqWithError(err_msg) => {
103                let error_code = block_builder.register_error(err_msg.expect_string());
104                block_builder.push_ops([Eq, Assert(error_code)])
105            },
106            Instruction::AssertEqw => field_ops::assertw(block_builder, ZERO),
107            Instruction::AssertEqwWithError(err_msg) => {
108                let error_code = block_builder.register_error(err_msg.expect_string());
109                field_ops::assertw(block_builder, error_code)
110            },
111            Instruction::Assertz => block_builder.push_ops([Eqz, Assert(ZERO)]),
112            Instruction::AssertzWithError(err_msg) => {
113                let error_code = block_builder.register_error(err_msg.expect_string());
114                block_builder.push_ops([Eqz, Assert(error_code)])
115            },
116
117            Instruction::Add => block_builder.push_op(Add),
118            Instruction::AddImm(imm) => field_ops::add_imm(block_builder, imm.expect_value()),
119            Instruction::Sub => block_builder.push_ops([Neg, Add]),
120            Instruction::SubImm(imm) => field_ops::sub_imm(block_builder, imm.expect_value()),
121            Instruction::Mul => block_builder.push_op(Mul),
122            Instruction::MulImm(imm) => field_ops::mul_imm(block_builder, imm.expect_value()),
123            Instruction::Div => block_builder.push_ops([Inv, Mul]),
124            Instruction::DivImm(imm) => {
125                field_ops::div_imm(block_builder, proc_ctx, imm.expect_spanned_value())?;
126            },
127            Instruction::Neg => block_builder.push_op(Neg),
128            Instruction::Inv => block_builder.push_op(Inv),
129            Instruction::Incr => block_builder.push_op(Incr),
130
131            Instruction::Pow2 => field_ops::pow2(block_builder),
132            Instruction::Exp => field_ops::exp(block_builder, proc_ctx, 64_u8, span)?,
133
134            Instruction::ExpImm(pow) => {
135                field_ops::exp_imm(block_builder, proc_ctx, pow.expect_value(), pow.span())?
136            },
137            Instruction::ExpBitLength(num_pow_bits) => {
138                field_ops::exp(block_builder, proc_ctx, *num_pow_bits, span)?
139            },
140            Instruction::ILog2 => field_ops::ilog2(block_builder),
141
142            Instruction::Not => block_builder.push_op(Not),
143            Instruction::And => block_builder.push_op(And),
144            Instruction::Or => block_builder.push_op(Or),
145            Instruction::Xor => block_builder.push_ops([Dup0, Dup2, Or, MovDn2, And, Not, And]),
146
147            Instruction::Eq => block_builder.push_op(Eq),
148            Instruction::EqImm(imm) => field_ops::eq_imm(block_builder, imm.expect_value()),
149            Instruction::Eqw => field_ops::eqw(block_builder),
150            Instruction::Neq => block_builder.push_ops([Eq, Not]),
151            Instruction::NeqImm(imm) => field_ops::neq_imm(block_builder, imm.expect_value()),
152            Instruction::Lt => field_ops::lt(block_builder),
153            Instruction::Lte => field_ops::lte(block_builder),
154            Instruction::Gt => field_ops::gt(block_builder),
155            Instruction::Gte => field_ops::gte(block_builder),
156            Instruction::IsOdd => field_ops::is_odd(block_builder),
157
158            // ----- ext2 instructions ------------------------------------------------------------
159            Instruction::Ext2Add => ext2_ops::ext2_add(block_builder),
160            Instruction::Ext2Sub => ext2_ops::ext2_sub(block_builder),
161            Instruction::Ext2Mul => ext2_ops::ext2_mul(block_builder),
162            Instruction::Ext2Div => ext2_ops::ext2_div(block_builder),
163            Instruction::Ext2Neg => ext2_ops::ext2_neg(block_builder),
164            Instruction::Ext2Inv => ext2_ops::ext2_inv(block_builder)?,
165
166            // ----- u32 manipulation -------------------------------------------------------------
167            Instruction::U32Test => block_builder.push_ops([Dup0, U32split, Drop, Eqz]),
168            Instruction::U32TestW => u32_ops::u32testw(block_builder),
169            Instruction::U32Assert => block_builder.push_ops([Pad, U32assert2(ZERO), Drop]),
170            Instruction::U32AssertWithError(err_msg) => {
171                let error_code = block_builder.register_error(err_msg.expect_string());
172                block_builder.push_ops([Pad, U32assert2(error_code), Drop])
173            },
174            Instruction::U32Assert2 => block_builder.push_op(U32assert2(ZERO)),
175            Instruction::U32Assert2WithError(err_msg) => {
176                let error_code = block_builder.register_error(err_msg.expect_string());
177                block_builder.push_op(U32assert2(error_code))
178            },
179            Instruction::U32AssertW => u32_ops::u32assertw(block_builder, ZERO),
180            Instruction::U32AssertWWithError(err_msg) => {
181                let error_code = block_builder.register_error(err_msg.expect_string());
182                u32_ops::u32assertw(block_builder, error_code)
183            },
184
185            Instruction::U32Cast => block_builder.push_ops([U32split, Swap, Drop]),
186            Instruction::U32Split => block_builder.push_op(U32split),
187
188            Instruction::U32OverflowingAdd => u32_ops::u32overflowing_add(block_builder, None),
189            Instruction::U32OverflowingAddImm(v) => {
190                u32_ops::u32overflowing_add(block_builder, Some(v.expect_value()))
191            },
192            Instruction::U32WideningAdd => u32_ops::u32widening_add(block_builder, None),
193            Instruction::U32WideningAddImm(v) => {
194                u32_ops::u32widening_add(block_builder, Some(v.expect_value()))
195            },
196            Instruction::U32WrappingAdd => u32_ops::u32add(block_builder, Wrapping, None),
197            Instruction::U32WrappingAddImm(v) => {
198                u32_ops::u32add(block_builder, Wrapping, Some(v.expect_value()))
199            },
200            Instruction::U32OverflowingAdd3 => u32_ops::u32overflowing_add3(block_builder),
201            Instruction::U32WideningAdd3 => u32_ops::u32widening_add3(block_builder),
202            Instruction::U32WrappingAdd3 => u32_ops::u32wrapping_add3(block_builder),
203
204            Instruction::U32OverflowingSub => u32_ops::u32sub(block_builder, Overflowing, None),
205            Instruction::U32OverflowingSubImm(v) => {
206                u32_ops::u32sub(block_builder, Overflowing, Some(v.expect_value()))
207            },
208            Instruction::U32WrappingSub => u32_ops::u32sub(block_builder, Wrapping, None),
209            Instruction::U32WrappingSubImm(v) => {
210                u32_ops::u32sub(block_builder, Wrapping, Some(v.expect_value()))
211            },
212
213            Instruction::U32WideningMul => u32_ops::u32mul(block_builder, Overflowing, None),
214            Instruction::U32WideningMulImm(v) => {
215                u32_ops::u32mul(block_builder, Overflowing, Some(v.expect_value()))
216            },
217            Instruction::U32WrappingMul => u32_ops::u32mul(block_builder, Wrapping, None),
218            Instruction::U32WrappingMulImm(v) => {
219                u32_ops::u32mul(block_builder, Wrapping, Some(v.expect_value()))
220            },
221            Instruction::U32WideningMadd => block_builder.push_op(U32madd),
222            Instruction::U32WrappingMadd => block_builder.push_ops([U32madd, Swap, Drop]),
223
224            Instruction::U32Div => u32_ops::u32div(block_builder, proc_ctx, None)?,
225            Instruction::U32DivImm(v) => {
226                u32_ops::u32div(block_builder, proc_ctx, Some(v.expect_spanned_value()))?
227            },
228            Instruction::U32Mod => u32_ops::u32mod(block_builder, proc_ctx, None)?,
229            Instruction::U32ModImm(v) => {
230                u32_ops::u32mod(block_builder, proc_ctx, Some(v.expect_spanned_value()))?
231            },
232            Instruction::U32DivMod => u32_ops::u32divmod(block_builder, proc_ctx, None)?,
233            Instruction::U32DivModImm(v) => {
234                u32_ops::u32divmod(block_builder, proc_ctx, Some(v.expect_spanned_value()))?
235            },
236            Instruction::U32And => block_builder.push_op(U32and),
237            Instruction::U32Or => block_builder.push_ops([Dup1, Dup1, U32and, Neg, Add, Add]),
238            Instruction::U32Xor => block_builder.push_op(U32xor),
239            Instruction::U32Not => u32_ops::u32not(block_builder),
240            Instruction::U32Shl => u32_ops::u32shl(block_builder, proc_ctx, None, span)?,
241            Instruction::U32ShlImm(v) => {
242                u32_ops::u32shl(block_builder, proc_ctx, Some(v.expect_value()), span)?
243            },
244            Instruction::U32Shr => u32_ops::u32shr(block_builder, proc_ctx, None, span)?,
245            Instruction::U32ShrImm(v) => {
246                u32_ops::u32shr(block_builder, proc_ctx, Some(v.expect_value()), v.span())?
247            },
248            Instruction::U32Rotl => u32_ops::u32rotl(block_builder, proc_ctx, None, span)?,
249            Instruction::U32RotlImm(v) => {
250                u32_ops::u32rotl(block_builder, proc_ctx, Some(v.expect_value()), v.span())?
251            },
252            Instruction::U32Rotr => u32_ops::u32rotr(block_builder, proc_ctx, None, span)?,
253            Instruction::U32RotrImm(v) => {
254                u32_ops::u32rotr(block_builder, proc_ctx, Some(v.expect_value()), v.span())?
255            },
256            Instruction::U32Popcnt => u32_ops::u32popcnt(block_builder),
257            Instruction::U32Clz => u32_ops::u32clz(block_builder),
258            Instruction::U32Ctz => u32_ops::u32ctz(block_builder),
259            Instruction::U32Clo => u32_ops::u32clo(block_builder),
260            Instruction::U32Cto => u32_ops::u32cto(block_builder),
261            Instruction::U32Lt => u32_ops::u32lt(block_builder),
262            Instruction::U32Lte => u32_ops::u32lte(block_builder),
263            Instruction::U32Gt => u32_ops::u32gt(block_builder),
264            Instruction::U32Gte => u32_ops::u32gte(block_builder),
265            Instruction::U32Min => u32_ops::u32min(block_builder),
266            Instruction::U32Max => u32_ops::u32max(block_builder),
267
268            // ----- stack manipulation -----------------------------------------------------------
269            Instruction::Drop => block_builder.push_op(Drop),
270            Instruction::DropW => block_builder.push_ops([Drop; 4]),
271            Instruction::PadW => block_builder.push_ops([Pad; 4]),
272            Instruction::Dup0 => block_builder.push_op(Dup0),
273            Instruction::Dup1 => block_builder.push_op(Dup1),
274            Instruction::Dup2 => block_builder.push_op(Dup2),
275            Instruction::Dup3 => block_builder.push_op(Dup3),
276            Instruction::Dup4 => block_builder.push_op(Dup4),
277            Instruction::Dup5 => block_builder.push_op(Dup5),
278            Instruction::Dup6 => block_builder.push_op(Dup6),
279            Instruction::Dup7 => block_builder.push_op(Dup7),
280            Instruction::Dup8 => block_builder.push_ops([Pad, Dup9, Add]),
281            Instruction::Dup9 => block_builder.push_op(Dup9),
282            Instruction::Dup10 => block_builder.push_ops([Pad, Dup11, Add]),
283            Instruction::Dup11 => block_builder.push_op(Dup11),
284            Instruction::Dup12 => block_builder.push_ops([Pad, Dup13, Add]),
285            Instruction::Dup13 => block_builder.push_op(Dup13),
286            Instruction::Dup14 => block_builder.push_ops([Pad, Dup15, Add]),
287            Instruction::Dup15 => block_builder.push_op(Dup15),
288            Instruction::DupW0 => block_builder.push_ops([Dup3; 4]),
289            Instruction::DupW1 => block_builder.push_ops([Dup7; 4]),
290            Instruction::DupW2 => block_builder.push_ops([Dup11; 4]),
291            Instruction::DupW3 => block_builder.push_ops([Dup15; 4]),
292            Instruction::Swap1 => block_builder.push_op(Swap),
293            Instruction::Swap2 => block_builder.push_ops([Swap, MovUp2]),
294            Instruction::Swap3 => block_builder.push_ops([MovDn2, MovUp3]),
295            Instruction::Swap4 => block_builder.push_ops([MovDn3, MovUp4]),
296            Instruction::Swap5 => block_builder.push_ops([MovDn4, MovUp5]),
297            Instruction::Swap6 => block_builder.push_ops([MovDn5, MovUp6]),
298            Instruction::Swap7 => block_builder.push_ops([MovDn6, MovUp7]),
299            Instruction::Swap8 => block_builder.push_ops([MovDn7, MovUp8]),
300            Instruction::Swap9 => block_builder.push_ops([MovDn8, SwapDW, Swap, SwapDW, MovUp8]),
301            Instruction::Swap10 => {
302                block_builder.push_ops([MovDn8, SwapDW, Swap, MovUp2, SwapDW, MovUp8])
303            },
304            Instruction::Swap11 => {
305                block_builder.push_ops([MovDn8, SwapDW, MovDn2, MovUp3, SwapDW, MovUp8])
306            },
307            Instruction::Swap12 => {
308                block_builder.push_ops([MovDn8, SwapDW, MovDn3, MovUp4, SwapDW, MovUp8])
309            },
310            Instruction::Swap13 => {
311                block_builder.push_ops([MovDn8, SwapDW, MovDn4, MovUp5, SwapDW, MovUp8])
312            },
313            Instruction::Swap14 => {
314                block_builder.push_ops([MovDn8, SwapDW, MovDn5, MovUp6, SwapDW, MovUp8])
315            },
316            Instruction::Swap15 => {
317                block_builder.push_ops([MovDn8, SwapDW, MovDn6, MovUp7, SwapDW, MovUp8])
318            },
319            Instruction::SwapW1 => block_builder.push_op(SwapW),
320            Instruction::SwapW2 => block_builder.push_op(SwapW2),
321            Instruction::SwapW3 => block_builder.push_op(SwapW3),
322            Instruction::SwapDw => block_builder.push_op(SwapDW),
323            Instruction::MovUp2 => block_builder.push_op(MovUp2),
324            Instruction::MovUp3 => block_builder.push_op(MovUp3),
325            Instruction::MovUp4 => block_builder.push_op(MovUp4),
326            Instruction::MovUp5 => block_builder.push_op(MovUp5),
327            Instruction::MovUp6 => block_builder.push_op(MovUp6),
328            Instruction::MovUp7 => block_builder.push_op(MovUp7),
329            Instruction::MovUp8 => block_builder.push_op(MovUp8),
330            Instruction::MovUp9 => block_builder.push_ops([SwapDW, Swap, SwapDW, MovUp8]),
331            Instruction::MovUp10 => block_builder.push_ops([SwapDW, MovUp2, SwapDW, MovUp8]),
332            Instruction::MovUp11 => block_builder.push_ops([SwapDW, MovUp3, SwapDW, MovUp8]),
333            Instruction::MovUp12 => block_builder.push_ops([SwapDW, MovUp4, SwapDW, MovUp8]),
334            Instruction::MovUp13 => block_builder.push_ops([SwapDW, MovUp5, SwapDW, MovUp8]),
335            Instruction::MovUp14 => block_builder.push_ops([SwapDW, MovUp6, SwapDW, MovUp8]),
336            Instruction::MovUp15 => block_builder.push_ops([SwapDW, MovUp7, SwapDW, MovUp8]),
337            Instruction::MovUpW2 => block_builder.push_ops([SwapW, SwapW2]),
338            Instruction::MovUpW3 => block_builder.push_ops([SwapW, SwapW2, SwapW3]),
339            Instruction::MovDn2 => block_builder.push_op(MovDn2),
340            Instruction::MovDn3 => block_builder.push_op(MovDn3),
341            Instruction::MovDn4 => block_builder.push_op(MovDn4),
342            Instruction::MovDn5 => block_builder.push_op(MovDn5),
343            Instruction::MovDn6 => block_builder.push_op(MovDn6),
344            Instruction::MovDn7 => block_builder.push_op(MovDn7),
345            Instruction::MovDn8 => block_builder.push_op(MovDn8),
346            Instruction::MovDn9 => block_builder.push_ops([MovDn8, SwapDW, Swap, SwapDW]),
347            Instruction::MovDn10 => block_builder.push_ops([MovDn8, SwapDW, MovDn2, SwapDW]),
348            Instruction::MovDn11 => block_builder.push_ops([MovDn8, SwapDW, MovDn3, SwapDW]),
349            Instruction::MovDn12 => block_builder.push_ops([MovDn8, SwapDW, MovDn4, SwapDW]),
350            Instruction::MovDn13 => block_builder.push_ops([MovDn8, SwapDW, MovDn5, SwapDW]),
351            Instruction::MovDn14 => block_builder.push_ops([MovDn8, SwapDW, MovDn6, SwapDW]),
352            Instruction::MovDn15 => block_builder.push_ops([MovDn8, SwapDW, MovDn7, SwapDW]),
353            Instruction::MovDnW2 => block_builder.push_ops([SwapW2, SwapW]),
354            Instruction::MovDnW3 => block_builder.push_ops([SwapW3, SwapW2, SwapW]),
355            Instruction::Reversew => push_reversew(block_builder),
356            Instruction::Reversedw => {
357                push_reversew(block_builder);
358                block_builder.push_op(SwapW);
359                push_reversew(block_builder);
360            },
361
362            Instruction::CSwap => block_builder.push_op(CSwap),
363            Instruction::CSwapW => block_builder.push_op(CSwapW),
364            Instruction::CDrop => block_builder.push_ops([CSwap, Drop]),
365            Instruction::CDropW => block_builder.push_ops([CSwapW, Drop, Drop, Drop, Drop]),
366
367            // ----- input / output instructions --------------------------------------------------
368            Instruction::Push(imm) => match (*imm).expect_value() {
369                PushValue::Int(value) => match value {
370                    IntValue::U8(v) => env_ops::push_one(Felt::from_u8(v), block_builder),
371                    IntValue::U16(v) => env_ops::push_one(Felt::from_u16(v), block_builder),
372                    IntValue::U32(v) => env_ops::push_one(Felt::from_u32(v), block_builder),
373                    IntValue::Felt(v) => env_ops::push_one(v, block_builder),
374                },
375                PushValue::Word(v) => env_ops::push_word(&v.0, block_builder),
376            },
377            Instruction::PushSlice(imm, range) => {
378                env_ops::push_word_slice(imm, range, block_builder)?
379            },
380            Instruction::PushFeltList(imms) => env_ops::push_many(imms, block_builder),
381            Instruction::Sdepth => block_builder.push_op(SDepth),
382            Instruction::Caller => env_ops::caller(block_builder),
383            Instruction::Clk => block_builder.push_op(Clk),
384            Instruction::AdvPipe => block_builder.push_op(Pipe),
385            Instruction::AdvPush => block_builder.push_op(AdvPop),
386            Instruction::AdvPushW => {
387                block_builder.push_ops([Pad; 4]);
388                block_builder.push_op(AdvPopW);
389            },
390            Instruction::AdvLoadW => block_builder.push_op(AdvPopW),
391
392            Instruction::MemStream => block_builder.push_op(MStream),
393            Instruction::Locaddr(v) => {
394                env_ops::locaddr(block_builder, v.expect_value(), proc_ctx, span)?
395            },
396            Instruction::MemLoad => {
397                mem_ops::mem_read(block_builder, proc_ctx, None, false, true, span)?
398            },
399            Instruction::MemLoadImm(v) => mem_ops::mem_read(
400                block_builder,
401                proc_ctx,
402                Some(v.expect_value()),
403                false,
404                true,
405                span,
406            )?,
407            Instruction::MemLoadWBe => {
408                mem_ops::mem_read(block_builder, proc_ctx, None, false, false, span)?;
409                push_reversew(block_builder);
410            },
411            Instruction::MemLoadWLe => {
412                mem_ops::mem_read(block_builder, proc_ctx, None, false, false, span)?
413            },
414            Instruction::MemLoadWBeImm(v) => {
415                mem_ops::mem_read(
416                    block_builder,
417                    proc_ctx,
418                    Some(v.expect_value()),
419                    false,
420                    false,
421                    span,
422                )?;
423                push_reversew(block_builder);
424            },
425            Instruction::MemLoadWLeImm(v) => mem_ops::mem_read(
426                block_builder,
427                proc_ctx,
428                Some(v.expect_value()),
429                false,
430                false,
431                span,
432            )?,
433            Instruction::LocLoad(v) => mem_ops::mem_read(
434                block_builder,
435                proc_ctx,
436                Some(v.expect_value() as u32),
437                true,
438                true,
439                span,
440            )?,
441            Instruction::LocLoadWBe(v) => {
442                let local_addr = validate_local_word_alignment(v, proc_ctx)?;
443                mem_ops::mem_read(
444                    block_builder,
445                    proc_ctx,
446                    Some(local_addr),
447                    true,
448                    false,
449                    instruction.span(),
450                )?;
451                push_reversew(block_builder);
452            },
453            Instruction::LocLoadWLe(v) => {
454                let local_addr = validate_local_word_alignment(v, proc_ctx)?;
455                mem_ops::mem_read(
456                    block_builder,
457                    proc_ctx,
458                    Some(local_addr),
459                    true,
460                    false,
461                    instruction.span(),
462                )?
463            },
464            Instruction::MemStore => block_builder.push_ops([MStore, Drop]),
465            Instruction::MemStoreImm(v) => mem_ops::mem_write_imm(
466                block_builder,
467                proc_ctx,
468                v.expect_value(),
469                false,
470                true,
471                span,
472            )?,
473            Instruction::MemStoreWBe => {
474                block_builder.push_op(MovDn4);
475                push_reversew(block_builder);
476                block_builder.push_op(MovUp4);
477                block_builder.push_op(MStoreW);
478                push_reversew(block_builder);
479            },
480            Instruction::MemStoreWLe => block_builder.push_ops([MStoreW]),
481            Instruction::MemStoreWBeImm(v) => {
482                push_reversew(block_builder);
483                mem_ops::mem_write_imm(
484                    block_builder,
485                    proc_ctx,
486                    v.expect_value(),
487                    false,
488                    false,
489                    span,
490                )?;
491                push_reversew(block_builder);
492            },
493            Instruction::MemStoreWLeImm(v) => mem_ops::mem_write_imm(
494                block_builder,
495                proc_ctx,
496                v.expect_value(),
497                false,
498                false,
499                span,
500            )?,
501            Instruction::LocStore(v) => mem_ops::mem_write_imm(
502                block_builder,
503                proc_ctx,
504                v.expect_value() as u32,
505                true,
506                true,
507                span,
508            )?,
509            Instruction::LocStoreWBe(v) => {
510                let local_addr = validate_local_word_alignment(v, proc_ctx)?;
511                push_reversew(block_builder);
512                mem_ops::mem_write_imm(block_builder, proc_ctx, local_addr, true, false, span)?;
513                push_reversew(block_builder)
514            },
515            Instruction::LocStoreWLe(v) => {
516                let local_addr = validate_local_word_alignment(v, proc_ctx)?;
517                mem_ops::mem_write_imm(block_builder, proc_ctx, local_addr, true, false, span)?
518            },
519            Instruction::SysEvent(system_event) => {
520                block_builder.push_system_event(system_event.into())
521            },
522
523            // ----- cryptographic instructions ---------------------------------------------------
524            Instruction::Hash => crypto_ops::hash(block_builder),
525            Instruction::HPerm => block_builder.push_op(HPerm),
526            Instruction::HMerge => crypto_ops::hmerge(block_builder),
527            Instruction::MTreeGet => crypto_ops::mtree_get(block_builder),
528            Instruction::MTreeSet => crypto_ops::mtree_set(block_builder)?,
529            Instruction::MTreeMerge => crypto_ops::mtree_merge(block_builder),
530            Instruction::MTreeVerify => block_builder.push_op(MpVerify(ZERO)),
531            Instruction::MTreeVerifyWithError(err_msg) => {
532                let error_code = block_builder.register_error(err_msg.expect_string());
533                block_builder.push_op(MpVerify(error_code))
534            },
535            Instruction::CryptoStream => block_builder.push_op(CryptoStream),
536
537            // ----- STARK proof verification -----------------------------------------------------
538            Instruction::FriExt2Fold4 => block_builder.push_op(FriE2F4),
539            Instruction::HornerBase => block_builder.push_op(HornerBase),
540            Instruction::HornerExt => block_builder.push_op(HornerExt),
541            Instruction::EvalCircuit => block_builder.push_op(EvalCircuit),
542            Instruction::LogPrecompile => block_builder.push_op(LogPrecompile),
543
544            // ----- exec/call instructions -------------------------------------------------------
545            Instruction::Exec(callee) => {
546                return self
547                    .invoke(
548                        InvokeKind::Exec,
549                        callee,
550                        proc_ctx.id(),
551                        block_builder.mast_forest_builder_mut(),
552                        before_enter,
553                        None,
554                    )
555                    .map(Into::into);
556            },
557            Instruction::Call(callee) => {
558                return self
559                    .invoke(
560                        InvokeKind::Call,
561                        callee,
562                        proc_ctx.id(),
563                        block_builder.mast_forest_builder_mut(),
564                        before_enter,
565                        Some(node_asm_op.expect("call instructions must provide an AssemblyOp")),
566                    )
567                    .map(Into::into);
568            },
569            Instruction::SysCall(callee) => {
570                return self
571                    .invoke(
572                        InvokeKind::SysCall,
573                        callee,
574                        proc_ctx.id(),
575                        block_builder.mast_forest_builder_mut(),
576                        before_enter,
577                        Some(node_asm_op.expect("syscall instructions must provide an AssemblyOp")),
578                    )
579                    .map(Into::into);
580            },
581            Instruction::DynExec => {
582                return self.dynexec(
583                    block_builder.mast_forest_builder_mut(),
584                    before_enter,
585                    node_asm_op.expect("dynexec instructions must provide an AssemblyOp"),
586                );
587            },
588            Instruction::DynCall => {
589                return self.dyncall(
590                    block_builder.mast_forest_builder_mut(),
591                    before_enter,
592                    node_asm_op.expect("dyncall instructions must provide an AssemblyOp"),
593                );
594            },
595            Instruction::ProcRef(callee) => self.procref(callee, proc_ctx.id(), block_builder)?,
596
597            // ----- debug decorators -------------------------------------------------------------
598            Instruction::Debug(options) => {
599                block_builder
600                    .push_decorator(Decorator::Debug(debug::compile_options(options, proc_ctx)?))?;
601            },
602
603            Instruction::DebugVar(debug_var_info) => {
604                block_builder.push_debug_var(debug_var_info.clone())?;
605            },
606
607            // ----- emit instruction -------------------------------------------------------------
608            // emit: reads event ID from top of stack and execute the corresponding handler.
609            Instruction::Emit => {
610                block_builder.push_ops([Emit]);
611            },
612            // emit.<id>: expands to `push.<id>, emit, drop` sequence leaving the stack unchanged.
613            Instruction::EmitImm(event_id) => {
614                let event_id_value = event_id.expect_value();
615                block_builder.push_ops([Push(event_id_value), Emit, Drop]);
616            },
617
618            // ----- trace instruction ------------------------------------------------------------
619            Instruction::Trace(trace_id) => {
620                block_builder.push_decorator(Decorator::Trace(trace_id.expect_value()))?;
621            },
622        }
623
624        Ok(None)
625    }
626}
627
628// HELPER FUNCTIONS
629// ================================================================================================
630
631/// This is a helper function that appends a PUSH operation to the span block which puts the
632/// provided u32 value onto the stack.
633///
634/// When the value is 0, PUSH operation is replaced with PAD. When the value is 1, PUSH operation
635/// is replaced with PAD INCR because in most cases this will be more efficient than doing a PUSH.
636fn push_u32_value(span_builder: &mut BasicBlockBuilder, value: u32) {
637    use Operation::*;
638
639    if value == 0 {
640        span_builder.push_op(Pad);
641    } else if value == 1 {
642        span_builder.push_op(Pad);
643        span_builder.push_op(Incr);
644    } else {
645        span_builder.push_op(Push(Felt::from_u32(value)));
646    }
647}
648
649/// This is a helper function that appends a PUSH operation to the span block which puts the
650/// provided field element onto the stack.
651///
652/// When the value is 0, PUSH operation is replaced with PAD. When the value is 1, PUSH operation
653/// is replaced with PAD INCR because in most cases this will be more efficient than doing a PUSH.
654fn push_felt(span_builder: &mut BasicBlockBuilder, value: Felt) {
655    span_builder.push_ops(push_value_ops(value));
656}
657
658/// Helper function that appends operations to reverse the order of the top 4 elements
659/// on the stack, used for little-endian memory instructions.
660///
661/// The instruction takes 3 cycles to execute and transforms the stack as follows:
662/// [a, b, c, d, ...] -> [d, c, b, a, ...].
663fn push_reversew(block_builder: &mut BasicBlockBuilder) {
664    use Operation::*;
665
666    block_builder.push_ops([MovDn3, Swap, MovUp2]);
667}
668
669/// Helper function that validates a local word address is properly word-aligned.
670///
671/// Returns the validated address as u32 or an error if the address is not a multiple of 4.
672fn validate_local_word_alignment(
673    local_addr: &ImmU16,
674    proc_ctx: &ProcedureContext,
675) -> Result<u32, Report> {
676    let addr = local_addr.expect_value();
677    if !addr.is_multiple_of(WORD_SIZE as u16) {
678        return Err(RelatedLabel::error("invalid local word index")
679            .with_help("the index to a local word must be a multiple of 4")
680            .with_labeled_span(local_addr.span(), "this index is not word-aligned")
681            .with_source_file(proc_ctx.source_manager().get(proc_ctx.span().source_id()).ok())
682            .into());
683    }
684    Ok(addr as u32)
685}
miden_assembly/instruction/mod.rs

miden_assembly/instruction/
mod.rs
