diff --git a/book/writing-programs/precompiles.md b/book/writing-programs/precompiles.md
index 711d241625..55d30a75e6 100644
--- a/book/writing-programs/precompiles.md
+++ b/book/writing-programs/precompiles.md
@@ -87,4 +87,20 @@ big-endian format. The second half of the input will be overwritten with the dec
 
 ```rust,noplayground
 pub extern "C" fn syscall_secp256k1_decompress(point: &mut [u8; 64], is_odd: bool);
+```
+
+#### Bn254 Add
+
+Adds two Bn254 points. The result is stored in the first point.
+
+```rust,noplayground
+pub extern "C" fn syscall_bn254_add(p: *mut u32, q: *mut u32)
+```
+
+#### Bn254 Double
+
+Doubles a Bn254 point. The result is stored in the first point.
+
+```rust,noplayground
+pub extern "C" fn syscall_bn254_double(p: *mut u32)
 ```
\ No newline at end of file
diff --git a/core/src/runtime/syscall.rs b/core/src/runtime/syscall.rs
index 312461c746..c5d6ad68bd 100644
--- a/core/src/runtime/syscall.rs
+++ b/core/src/runtime/syscall.rs
@@ -14,7 +14,7 @@ use crate::syscall::{
     SyscallEnterUnconstrained, SyscallExitUnconstrained, SyscallHalt, SyscallLWA, SyscallWrite,
 };
 use crate::utils::ec::edwards::ed25519::{Ed25519, Ed25519Parameters};
-use crate::utils::ec::weierstrass::secp256k1::Secp256k1;
+use crate::utils::ec::weierstrass::{bn254::Bn254, secp256k1::Secp256k1};
 use crate::{runtime::ExecutionRecord, runtime::MemoryReadRecord, runtime::MemoryWriteRecord};
 
 /// A system call is invoked by the the `ecall` instruction with a specific value in register t0.
@@ -60,6 +60,12 @@ pub enum SyscallCode {
     /// Executes the `BLAKE3_COMPRESS_INNER` precompile.
     BLAKE3_COMPRESS_INNER = 112,
 
+    /// Executes the `BN254_ADD` precompile.
+    BN254_ADD = 117,
+
+    /// Executes the `BN254_MUL` precompile.
+    BN254_DOUBLE = 118,
+
     WRITE = 999,
 }
 
@@ -80,6 +86,8 @@ impl SyscallCode {
             110 => SyscallCode::ENTER_UNCONSTRAINED,
             111 => SyscallCode::EXIT_UNCONSTRAINED,
             112 => SyscallCode::BLAKE3_COMPRESS_INNER,
+            117 => SyscallCode::BN254_ADD,
+            118 => SyscallCode::BN254_DOUBLE,
             999 => SyscallCode::WRITE,
             _ => panic!("invalid syscall number: {}", value),
         }
@@ -213,6 +221,14 @@ pub fn default_syscall_map() -> HashMap<SyscallCode, Rc<dyn Syscall>> {
         SyscallCode::SECP256K1_DECOMPRESS,
         Rc::new(K256DecompressChip::new()),
     );
+    syscall_map.insert(
+        SyscallCode::BN254_ADD,
+        Rc::new(WeierstrassAddAssignChip::<Bn254>::new()),
+    );
+    syscall_map.insert(
+        SyscallCode::BN254_DOUBLE,
+        Rc::new(WeierstrassDoubleAssignChip::<Bn254>::new()),
+    );
     syscall_map.insert(
         SyscallCode::BLAKE3_COMPRESS_INNER,
         Rc::new(Blake3CompressInnerChip::new()),
diff --git a/core/src/syscall/precompiles/weierstrass/weierstrass_add.rs b/core/src/syscall/precompiles/weierstrass/weierstrass_add.rs
index a18d2c30cb..2f49296e06 100644
--- a/core/src/syscall/precompiles/weierstrass/weierstrass_add.rs
+++ b/core/src/syscall/precompiles/weierstrass/weierstrass_add.rs
@@ -347,7 +347,7 @@ where
 mod tests {
     use crate::{
         runtime::Program,
-        utils::{run_test, setup_logger, tests::SECP256K1_ADD_ELF},
+        utils::{run_test, setup_logger, tests::BN254_ADD_ELF, tests::SECP256K1_ADD_ELF},
     };
 
     #[test]
@@ -356,4 +356,11 @@ mod tests {
         let program = Program::from(SECP256K1_ADD_ELF);
         run_test(program).unwrap();
     }
+
+    #[test]
+    fn test_bn254_add_simple() {
+        setup_logger();
+        let program = Program::from(BN254_ADD_ELF);
+        run_test(program).unwrap();
+    }
 }
diff --git a/core/src/syscall/precompiles/weierstrass/weierstrass_double.rs b/core/src/syscall/precompiles/weierstrass/weierstrass_double.rs
index d554982783..432e227e1c 100644
--- a/core/src/syscall/precompiles/weierstrass/weierstrass_double.rs
+++ b/core/src/syscall/precompiles/weierstrass/weierstrass_double.rs
@@ -382,7 +382,7 @@ pub mod tests {
 
     use crate::{
         runtime::Program,
-        utils::{run_test, setup_logger, tests::SECP256K1_DOUBLE_ELF},
+        utils::{run_test, setup_logger, tests::BN254_DOUBLE_ELF, tests::SECP256K1_DOUBLE_ELF},
     };
 
     #[test]
@@ -391,4 +391,11 @@ pub mod tests {
         let program = Program::from(SECP256K1_DOUBLE_ELF);
         run_test(program).unwrap();
     }
+
+    #[test]
+    fn test_bn254_double_simple() {
+        setup_logger();
+        let program = Program::from(BN254_DOUBLE_ELF);
+        run_test(program).unwrap();
+    }
 }
diff --git a/core/src/utils/programs.rs b/core/src/utils/programs.rs
index e7715fe946..5e1714a828 100644
--- a/core/src/utils/programs.rs
+++ b/core/src/utils/programs.rs
@@ -72,4 +72,10 @@ pub mod tests {
 
     pub const SHA2_ELF: &[u8] =
         include_bytes!("../../../tests/sha2/elf/riscv32im-succinct-zkvm-elf");
+
+    pub const BN254_ADD_ELF: &[u8] =
+        include_bytes!("../../../tests/bn254-add/elf/riscv32im-succinct-zkvm-elf");
+
+    pub const BN254_DOUBLE_ELF: &[u8] =
+        include_bytes!("../../../tests/bn254-double/elf/riscv32im-succinct-zkvm-elf");
 }
diff --git a/tests/biguint_add/Cargo.lock b/tests/biguint_add/Cargo.lock
new file mode 100644
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--- /dev/null
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diff --git a/tests/bn254-add/Cargo.toml b/tests/bn254-add/Cargo.toml
new file mode 100644
index 0000000000..f77782d1cc
--- /dev/null
+++ b/tests/bn254-add/Cargo.toml
@@ -0,0 +1,10 @@
+[workspace]
+[package]
+version = "0.1.0"
+name = "bn254-add-test"
+edition = "2021"
+
+[dependencies]
+sp1-zkvm = { path = "../../zkvm/entrypoint" }
+hex-literal = "0.4.1"
+num = { version = "0.4.1", default-features = false }
\ No newline at end of file
diff --git a/tests/bn254-add/elf/riscv32im-succinct-zkvm-elf b/tests/bn254-add/elf/riscv32im-succinct-zkvm-elf
new file mode 100755
index 0000000000..1d864dbc8c
Binary files /dev/null and b/tests/bn254-add/elf/riscv32im-succinct-zkvm-elf differ
diff --git a/tests/bn254-add/src/main.rs b/tests/bn254-add/src/main.rs
new file mode 100644
index 0000000000..7e164663da
--- /dev/null
+++ b/tests/bn254-add/src/main.rs
@@ -0,0 +1,45 @@
+#![no_main]
+sp1_zkvm::entrypoint!(main);
+
+extern "C" {
+    fn syscall_bn254_add(p: *mut u32, q: *const u32);
+}
+
+pub fn main() {
+    // generator.
+    // 1
+    // 2
+    let mut a: [u8; 64] = [
+        1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0,
+    ];
+
+    // 2 * generator.
+    // 1368015179489954701390400359078579693043519447331113978918064868415326638035
+    // 9918110051302171585080402603319702774565515993150576347155970296011118125764
+    let b: [u8; 64] = [
+        211, 207, 135, 109, 193, 8, 194, 211, 168, 28, 135, 22, 169, 22, 120, 217, 133, 21, 24,
+        104, 91, 4, 133, 155, 2, 26, 19, 46, 231, 68, 6, 3, 196, 162, 24, 90, 122, 191, 62, 255,
+        199, 143, 83, 227, 73, 164, 166, 104, 10, 156, 174, 178, 150, 95, 132, 231, 146, 124, 10,
+        14, 140, 115, 237, 21,
+    ];
+
+    unsafe {
+        syscall_bn254_add(a.as_mut_ptr() as *mut u32, b.as_ptr() as *const u32);
+    }
+
+    // 3 * generator.
+    // 3353031288059533942658390886683067124040920775575537747144343083137631628272
+    // 19321533766552368860946552437480515441416830039777911637913418824951667761761
+    let c: [u8; 64] = [
+        240, 171, 21, 25, 150, 85, 211, 242, 121, 230, 184, 21, 71, 216, 21, 147, 21, 189, 182,
+        177, 188, 50, 2, 244, 63, 234, 107, 197, 154, 191, 105, 7, 97, 34, 254, 217, 61, 255, 241,
+        205, 87, 91, 156, 11, 180, 99, 158, 49, 117, 100, 8, 141, 124, 219, 79, 85, 41, 148, 72,
+        224, 190, 153, 183, 42,
+    ];
+
+    assert_eq!(a, c);
+
+    println!("done");
+}
diff --git a/tests/bn254-double/Cargo.lock b/tests/bn254-double/Cargo.lock
new file mode 100644
index 0000000000..b6300256bb
--- /dev/null
+++ b/tests/bn254-double/Cargo.lock
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+ "tap",
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diff --git a/tests/bn254-double/Cargo.toml b/tests/bn254-double/Cargo.toml
new file mode 100644
index 0000000000..5c3ad8cb38
--- /dev/null
+++ b/tests/bn254-double/Cargo.toml
@@ -0,0 +1,10 @@
+[workspace]
+[package]
+version = "0.1.0"
+name = "bn254-double-test"
+edition = "2021"
+
+[dependencies]
+sp1-zkvm = { path = "../../zkvm/entrypoint" }
+hex-literal = "0.4.1"
+num = { version = "0.4.1", default-features = false }
\ No newline at end of file
diff --git a/tests/bn254-double/elf/riscv32im-succinct-zkvm-elf b/tests/bn254-double/elf/riscv32im-succinct-zkvm-elf
new file mode 100755
index 0000000000..f5d61934ca
Binary files /dev/null and b/tests/bn254-double/elf/riscv32im-succinct-zkvm-elf differ
diff --git a/tests/bn254-double/src/main.rs b/tests/bn254-double/src/main.rs
new file mode 100644
index 0000000000..7d27ef058d
--- /dev/null
+++ b/tests/bn254-double/src/main.rs
@@ -0,0 +1,37 @@
+#![no_main]
+sp1_zkvm::entrypoint!(main);
+
+extern "C" {
+    fn syscall_bn254_double(p: *mut u32);
+}
+
+pub fn main() {
+    for _ in 0..10i64.pow(3) {
+        // generator.
+        // 1
+        // 2
+        let mut a: [u8; 64] = [
+            1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+            0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+            0, 0, 0, 0, 0, 0,
+        ];
+
+        unsafe {
+            syscall_bn254_double(a.as_mut_ptr() as *mut u32);
+        }
+
+        // 2 * generator.
+        // 1368015179489954701390400359078579693043519447331113978918064868415326638035
+        // 9918110051302171585080402603319702774565515993150576347155970296011118125764
+        let b: [u8; 64] = [
+            211, 207, 135, 109, 193, 8, 194, 211, 168, 28, 135, 22, 169, 22, 120, 217, 133, 21, 24,
+            104, 91, 4, 133, 155, 2, 26, 19, 46, 231, 68, 6, 3, 196, 162, 24, 90, 122, 191, 62,
+            255, 199, 143, 83, 227, 73, 164, 166, 104, 10, 156, 174, 178, 150, 95, 132, 231, 146,
+            124, 10, 14, 140, 115, 237, 21,
+        ];
+
+        assert_eq!(a, b);
+    }
+
+    println!("done");
+}
diff --git a/zkvm/entrypoint/src/syscalls/bn254.rs b/zkvm/entrypoint/src/syscalls/bn254.rs
new file mode 100644
index 0000000000..2b3a83daa7
--- /dev/null
+++ b/zkvm/entrypoint/src/syscalls/bn254.rs
@@ -0,0 +1,41 @@
+#[cfg(target_os = "zkvm")]
+use core::arch::asm;
+
+/// Adds two Bn254 points.
+///
+/// The result is stored in the first point.
+#[allow(unused_variables)]
+#[no_mangle]
+pub extern "C" fn syscall_bn254_add(p: *mut u32, q: *mut u32) {
+    #[cfg(target_os = "zkvm")]
+    unsafe {
+        asm!(
+            "ecall",
+            in("t0") crate::syscalls::BN254_ADD,
+            in("a0") p,
+            in("a1") q
+        );
+    }
+
+    #[cfg(not(target_os = "zkvm"))]
+    unreachable!()
+}
+
+/// Double a Bn254 point.
+///
+/// The result is stored in the first point.
+#[allow(unused_variables)]
+#[no_mangle]
+pub extern "C" fn syscall_bn254_double(p: *mut u32) {
+    #[cfg(target_os = "zkvm")]
+    unsafe {
+        asm!(
+            "ecall",
+            in("t0") crate::syscalls::BN254_DOUBLE,
+            in("a0") p,
+        );
+    }
+
+    #[cfg(not(target_os = "zkvm"))]
+    unreachable!()
+}
diff --git a/zkvm/entrypoint/src/syscalls/mod.rs b/zkvm/entrypoint/src/syscalls/mod.rs
index 8960f39648..20bdba564c 100644
--- a/zkvm/entrypoint/src/syscalls/mod.rs
+++ b/zkvm/entrypoint/src/syscalls/mod.rs
@@ -1,4 +1,5 @@
 mod blake3_compress;
+mod bn254;
 mod ed25519;
 mod halt;
 mod io;
@@ -10,6 +11,7 @@ mod sha_extend;
 mod sys;
 mod unconstrained;
 
+pub use bn254::*;
 pub use ed25519::*;
 pub use halt::*;
 pub use io::*;
@@ -60,5 +62,11 @@ pub const EXIT_UNCONSTRAINED: u32 = 111;
 /// Executes `BLAKE3_COMPRESS_INNER`.
 pub const BLAKE3_COMPRESS_INNER: u32 = 112;
 
+/// Executes `BN254_ADD`.
+pub const BN254_ADD: u32 = 117;
+
+/// Executes `BN254_DOUBLE`.
+pub const BN254_DOUBLE: u32 = 118;
+
 /// Writes to a file descriptor. Currently only used for `STDOUT/STDERR`.
 pub const WRITE: u32 = 999;
diff --git a/zkvm/precompiles/src/lib.rs b/zkvm/precompiles/src/lib.rs
index 30ad4e2b9c..5e8682c4b1 100644
--- a/zkvm/precompiles/src/lib.rs
+++ b/zkvm/precompiles/src/lib.rs
@@ -13,6 +13,8 @@ extern "C" {
     pub fn syscall_secp256k1_add(p: *mut u32, q: *const u32);
     pub fn syscall_secp256k1_double(p: *mut u32);
     pub fn syscall_secp256k1_decompress(point: &mut [u8; 64], is_odd: bool);
+    pub fn syscall_bn254_add(p: *mut u32, q: *mut u32);
+    pub fn syscall_bn254_double(p: *mut u32);
     pub fn syscall_keccak_permute(state: *mut u64);
     pub fn syscall_blake3_compress_inner(p: *mut u32, q: *const u32);
     pub fn syscall_enter_unconstrained() -> bool;