[sample] save ra in bf.cpp

herumi · Jan 8, 2024 · 1c843d0 · 1c843d0
1 parent 3016577
commit 1c843d0
Showing 1 changed file with 9 additions and 7 deletions.
diff --git a/sample/bf.cpp b/sample/bf.cpp
@@ -24,11 +24,12 @@ class Brainfuck : public Xbyak_riscv::CodeGenerator {
 		const auto &pPutchar = s2;
 		const auto &pGetchar = s3;
 		const auto &stack = s4;
-		const int saveSize = 16*3;
+		const int saveSize = 16*2;
 		addi(sp, sp, -saveSize);
-		sd(pPutchar, sp, 16);
-		sd(pGetchar, sp, 24);
-		sd(stack, sp, 32);
+		sd(pPutchar, sp, 8);
+		sd(pGetchar, sp, 16);
+		sd(stack, sp, 24);
+		sd(ra, sp, 32);
 
 		mv(pPutchar, a0);
 		mv(pGetchar, a1);
@@ -88,9 +89,10 @@ class Brainfuck : public Xbyak_riscv::CodeGenerator {
 			}
 		}
 
-		ld(stack, sp, 32);
-		ld(pGetchar, sp, 24);
-		ld(pPutchar, sp, 16);
+		ld(ra, sp, 32);
+		ld(stack, sp, 24);
+		ld(pGetchar, sp, 16);
+		ld(pPutchar, sp, 8);
 		addi(sp, sp, saveSize);
 		ret();
 	}