From e5a584226fab1b0c6c2aae4ffebf2a5e7cd8c60b Mon Sep 17 00:00:00 2001
From: Minhyuk Kim <kimminhyuk1004@gmail.com>
Date: Tue, 7 Jan 2025 13:28:29 +0900
Subject: [PATCH] Use iszero for consistency

---
 rvsol/src/RISCV.sol | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rvsol/src/RISCV.sol b/rvsol/src/RISCV.sol
index 366403b7..7c5d0c8e 100644
--- a/rvsol/src/RISCV.sol
+++ b/rvsol/src/RISCV.sol
@@ -888,7 +888,7 @@ contract RISCV is IBigStepper {
 
                     let errCode := 0
                     // ensure MAP_ANONYMOUS is set and fd == -1
-                    switch or(iszero(and(flags, 0x20)), eq(eq(fd, u64Mask()), 0))
+                    switch or(iszero(and(flags, 0x20)), iszero(eq(fd, u64Mask())))
                     case 1 {
                         addr := u64Mask()
                         errCode := toU64(0x4d)