fix(asm): complete RISC-V compressed loads/stores and word arithmetic

Assisted-by: DeepSeek V4 Pro
2026-08-13 15:42:38 +02:00
parent 373c09f725
commit f0512a4e1c
6 changed files with 146 additions and 26 deletions
@@ -0,0 +1,24 @@
+// Copyright (c) 2026 Petr Balvín <opensource@petrbalvin.org> (https://petrbalvin.org)
+// SPDX-License-Identifier: BSD-3-Clause
+
+#include "textflag.h"
+
+TEXT ·ldst(SB), NOSPLIT, $0
+	LD (X8), X9
+	SD X9, (X8)
+	LW (X8), X9
+	SW X9, (X8)
+	LD 8(X2), X10
+	SD X10, 16(X2)
+	LW 4(X2), X11
+	SW X11, 8(X2)
+	RET
+
+TEXT ·addi4spn(SB), NOSPLIT, $0
+	ADDI $16, X2, X8
+	RET
+
+TEXT ·wordarith(SB), NOSPLIT, $0
+	ADDW X9, X8, X8
+	SUBW X9, X8, X8
+	RET