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authorJose Antonio Ortega Ruiz <jao@gnu.org>2019-03-19 01:13:46 +0000
committerJose Antonio Ortega Ruiz <jao@gnu.org>2019-03-19 01:13:46 +0000
commit6decb49237b3179e251c9ead2cd31ac8b8ea9adc (patch)
treefe508ef095e38b4ffa1d76b095c475e19e89d3a4 /mixlib
parentd565ed0ffbc224f0795f03df011db0fff093c903 (diff)
downloadmdk-6decb49237b3179e251c9ead2cd31ac8b8ea9adc.tar.gz
mdk-6decb49237b3179e251c9ead2cd31ac8b8ea9adc.tar.bz2
Fix: allow access to last mem cell in devices (#9773)
Author: Kevin Brunelle
Diffstat (limited to 'mixlib')
-rw-r--r--mixlib/xmix_vm.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/mixlib/xmix_vm.c b/mixlib/xmix_vm.c
index cf20ee1..68a8106 100644
--- a/mixlib/xmix_vm.c
+++ b/mixlib/xmix_vm.c
@@ -1,7 +1,7 @@
/* ---------------------- xmix_vm.c :
* Implementation of the functions declared in xmix_vm.h
* ------------------------------------------------------------------
- * Copyright (C) 2000, 2003, 2004, 2007, 2010, 2013 Free Software Foundation, Inc.
+ * Copyright (C) 2000, 2003, 2004, 2007, 2010, 2013, 2019 Free Software Foundation, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -333,7 +333,7 @@ inp_handler_ (mix_vm_t *vm, const mix_ins_t *ins)
dev = get_dev_ (vm, ins->fspec);
fail_if_not_ (vm, dev != NULL, MIX_VM_ERROR_BAD_DEVICE_NO);
- fail_if_not_ (vm, MEM_CELLS_NO_ - addr > mix_device_block_size (dev),
+ fail_if_not_ (vm, MEM_CELLS_NO_ - addr >= mix_device_block_size (dev),
MIX_VM_ERROR_BAD_ACCESS);
fail_if_not_ (vm, mix_device_read (dev, get_cell_ptr_ (vm, addr)),
@@ -359,7 +359,7 @@ out_handler_ (mix_vm_t *vm, const mix_ins_t *ins)
dev = get_dev_ (vm, ins->fspec);
fail_if_not_ (vm, dev != NULL, MIX_VM_ERROR_BAD_DEVICE_NO);
- fail_if_not_ (vm, MEM_CELLS_NO_ - addr > mix_device_block_size (dev),
+ fail_if_not_ (vm, MEM_CELLS_NO_ - addr >= mix_device_block_size (dev),
MIX_VM_ERROR_BAD_ACCESS);
fail_if_not_ (vm, mix_device_write (dev, get_cell_ptr_ (vm, addr)),