Fix call instruction disassembler in ddb.

Disassembling the amd64 call instruction in ddb produced wrong
output.  The operand of e8 is only 4 bytes long, not 8.  The shown
address was off by 4 bytes.  Following instructions were interpreted
incorrectly.

OK guenther@

diff --git a/sys/arch/amd64/amd64/db_disasm.c b/sys/arch/amd64/amd64/db_disasm.c
index f552a1c..ad3c95d 100644 (file)
--- a/sys/arch/amd64/amd64/db_disasm.c
+++ b/sys/arch/amd64/amd64/db_disasm.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: db_disasm.c,v 1.24 2023/04/22 18:26:17 guenther Exp $ */
+/*     $OpenBSD: db_disasm.c,v 1.25 2024/06/06 12:36:41 bluhm Exp $    */
 /*     $NetBSD: db_disasm.c,v 1.11 1996/05/03 19:41:58 christos Exp $  */
 
 /* 
@@ -793,7 +793,7 @@ struct inst db_inst_table[256] = {
 /*e6*/ { "out",   0, BYTE,  op2(A, Ib),  0 },
 /*e7*/ { "out",   0, LONG,  op2(A, Ib) , 0 },
 
-/*e8*/ { "call",  0, QUAD,  op1(Dl),     0 },
+/*e8*/ { "call",  0, NONE,  op1(Dl),     0 },
 /*e9*/ { "jmp",   0, NONE,  op1(Dl),     0 },
 /*ea*/ { "",      0, NONE,  op1(OS),     0 },
 /*eb*/ { "jmp",   0, NONE,  op1(Db),     0 },