Implemented EvalCircuit, Fixed bugs and wrote tests for Modbuiltin (#669

)

* Wrote tests for ModBuiltin

* it

* Added another test

* big test

* add zerodivisor

* implemented nComputedMulGates

* Done with tests

* lint

* nit

* nit

* nit

* nit

.github/workflows/integration-test.yml

@@ -18,7 +18,7 @@ jobs:
           python-version: "3.9"
 
       - name: Install cairo-lang
-        run: pip install cairo-lang==0.13.1
+        run: pip install cairo-lang==0.13.2
 
       - name: Install sympy
         run: pip install sympy==1.11.1

pkg/hintrunner/core/cairo_hintparser.go

@@ -95,6 +95,14 @@ func GetHintByName(hint starknet.Hint) (hinter.Hinter, error) {
 		return &AllocSegment{
 			Dst: parseCellRefer(args.Dst),
 		}, nil
+	case starknet.EvalCircuitName:
+		args := hint.Args.(*starknet.EvalCircuit)
+		return &EvalCircuit{
+			AddModN:   parseResOperand(args.NAddMods),
+			AddModPtr: parseResOperand(args.AddModPtr),
+			MulModN:   parseResOperand(args.NMulMods),
+			MulModPtr: parseResOperand(args.MulModPtr),
+		}, nil
 	case starknet.TestLessThanName:
 		args := hint.Args.(*starknet.TestLessThan)
 		return &TestLessThan{

pkg/hintrunner/core/hint.go

@@ -12,6 +12,7 @@ import (
 	"github.com/NethermindEth/cairo-vm-go/pkg/parsers/starknet"
 	"github.com/NethermindEth/cairo-vm-go/pkg/utils"
 	VM "github.com/NethermindEth/cairo-vm-go/pkg/vm"
+	"github.com/NethermindEth/cairo-vm-go/pkg/vm/builtins"
 	mem "github.com/NethermindEth/cairo-vm-go/pkg/vm/memory"
 	f "github.com/consensys/gnark-crypto/ecc/stark-curve/fp"
 )
@@ -56,6 +57,46 @@ func (hint *AllocSegment) Execute(vm *VM.VirtualMachine, _ *hinter.HintRunnerCon
 	return nil
 }
 
+type EvalCircuit struct {
+	AddModN   hinter.Reference
+	AddModPtr hinter.Reference
+	MulModN   hinter.Reference
+	MulModPtr hinter.Reference
+}
+
+func (hint *EvalCircuit) String() string {
+	return "EvalCircuit"
+}
+
+func (hint *EvalCircuit) Execute(vm *VM.VirtualMachine, _ *hinter.HintRunnerContext) error {
+	addModInputAddress, err := hinter.ResolveAsAddress(vm, hint.AddModPtr)
+	if err != nil {
+		return fmt.Errorf("resolve addModBuiltin pointer: %w", err)
+	}
+	nAddMods, err := hint.AddModN.Resolve(vm)
+	if err != nil {
+		return fmt.Errorf("resolve nAddMods operand %s: %v", hint.AddModN, err)
+	}
+	nAddModsFelt, err := nAddMods.Uint64()
+	if err != nil {
+		return err
+	}
+	mulModInputAddress, err := hinter.ResolveAsAddress(vm, hint.MulModPtr)
+	if err != nil {
+		return fmt.Errorf("resolve mulModBuiltin pointer: %w", err)
+	}
+	nMulMods, err := hint.MulModN.Resolve(vm)
+	if err != nil {
+		return fmt.Errorf("resolve nMulMods operand %s: %v", hint.MulModN, err)
+	}
+	nMulModsFelt, err := nMulMods.Uint64()
+	if err != nil {
+		return err
+	}
+
+	return builtins.FillMemory(vm.Memory, *addModInputAddress, nAddModsFelt, *mulModInputAddress, nMulModsFelt)
+}
+
 type TestLessThan struct {
 	dst hinter.Reference
 	lhs hinter.Reference