From: Michael Buesch <mb@bu3sch.de>
Date: Sun, 18 May 2008 12:31:19 +0000 (+0200)
Subject: b43-asm: Change JMP emulation from JE to JEXT
X-Git-Tag: b43-fwcutter-013~54
X-Git-Url: https://jxself.org/git/?p=b43-tools.git;a=commitdiff_plain;h=7300a854837ee58f13af1e66acd96295b8811d05

b43-asm: Change JMP emulation from JE to JEXT

The external condition 0x7F is always true. This is what is supposed to be used
for an unconditional jump.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
---

diff --git a/assembler/main.c b/assembler/main.c
index 3f207ba..3562a04 100644
--- a/assembler/main.c
+++ b/assembler/main.c
@@ -571,19 +571,20 @@ static void emulate_jmp_insn(struct assembler_context *ctx,
 {
 	struct instruction em_insn;
 	struct operlist em_ol;
-	struct operand em_op;
-	struct immediate em_imm;
-
-	/* This is a pseudo-OP. We emulate it by JE */
-
-	em_insn.op = OP_JE;
-	em_imm.imm = 1;
-	em_op.type = OPER_IMM;
-	em_op.u.imm = &em_imm;
-	em_ol.oper[0] = &em_op;
-	em_ol.oper[1] = &em_op;
-	em_ol.oper[2] = insn->operands->oper[0];
+	struct immediate em_condition;
+	struct operand em_cond_op;
+
+	/* This is a pseudo-OP. We emulate it with
+	 * JEXT 0x7F, target */
+
+	em_insn.op = OP_JEXT;
+	em_condition.imm = 0x7F; /* Ext cond: Always true */
+	em_cond_op.type = OPER_IMM;
+	em_cond_op.u.imm = &em_condition;
+	em_ol.oper[0] = &em_cond_op;
+	em_ol.oper[1] = insn->operands->oper[0]; /* Target */
 	em_insn.operands = &em_ol;
+
 	assemble_instruction(ctx, &em_insn); /* recurse */
 }