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added asserts for index out-of-bounds accesses with wmbullet -flop cpm22 (nw)

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Oliver Stöneberg 2014-07-28 07:51:15 +00:00
parent dd71fc9777
commit 34dd10fbdd
1 changed files with 4 additions and 1 deletions
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5
src/emu/machine/z80dma.c
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@ -595,8 +595,10 @@ UINT8 z80dma_device::read()
if(m_read_num_follow == 0) // special case: Legend of Kage on X1 Turbo if(m_read_num_follow == 0) // special case: Legend of Kage on X1 Turbo
res = m_status; res = m_status;
else else {
assert(m_read_cur_follow < ARRAY_LENGTH(m_read_regs_follow));
res = m_read_regs_follow[m_read_cur_follow]; res = m_read_regs_follow[m_read_cur_follow];
}
m_read_cur_follow++; m_read_cur_follow++;
@ -686,6 +688,7 @@ void z80dma_device::write(UINT8 data)
case COMMAND_READ_STATUS_BYTE: case COMMAND_READ_STATUS_BYTE:
if (LOG) logerror("Z80DMA '%s' CMD Read status Byte\n", tag()); if (LOG) logerror("Z80DMA '%s' CMD Read status Byte\n", tag());
READ_MASK = 1; READ_MASK = 1;
assert(m_read_num_follow < ARRAY_LENGTH(m_read_regs_follow));
m_read_regs_follow[m_read_num_follow++] = m_status; m_read_regs_follow[m_read_num_follow++] = m_status;
break; break;
case COMMAND_RESET_AND_DISABLE_INTERRUPTS: case COMMAND_RESET_AND_DISABLE_INTERRUPTS: