Package: z80asm
Version: 1.5-1
Severity: normal
Tags: patch
Hi
The following assembler program causes "a.asm:7: error: relative jump
out of range (65537)":
nop
label:
nop
ds 64*1024-4,0
;jr label ;works
;jr 1 ;works
jr $+3 ;error
;jr label2 ;works
label2: equ 1
This "jr" instruction is valid because the program counter wraps around
when jump is executed (this program fills the entire Z80 address space).
The error is only reported when "$" is used in the argument to "jr".
With other jump instructions, which should produce equivalent code, the
program assembles correctly.
I believe the patch below fixes the problem (but it could be it just
fixes symptoms of a bug deeper down in the expression evaluation code).
Best regards
Tomaz
diff -ru z80asm-1.5/z80asm.c z80asm-1.5-new/z80asm.c
--- z80asm-1.5/z80asm.c 2007-06-14 12:26:47.000000000 +0200
+++ z80asm-1.5-new/z80asm.c 2007-06-28 23:39:31.000000000 +0200
@@ -1397,6 +1397,8 @@
return;
case TYPE_RELB:
val -= count;
+ if (val >= 0x10000)
+ val -= 0x10000;
if (val < -128 || val > 127)
{
printerr (1, "relative jump out of range (%d)\n", val);
-- System Information:
Debian Release: lenny/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: i386 (i686)
Kernel: Linux 2.6.18-4-k7 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages z80asm depends on:
ii libc6 2.5-9+b1 GNU C Library: Shared libraries
z80asm recommends no packages.
-- no debconf information
--
To UNSUBSCRIBE, email to [EMAIL PROTECTED]
with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
