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author Olivier Galibert <galibert@pobox.com>2020-05-25 16:42:42 +0200
committer Olivier Galibert <galibert@pobox.com>2020-05-25 16:42:57 +0200
commit22513fb6fe281f5ccb75aaddb6417a12a66c313d (patch)
tree3cf84032cc6482d685a8dbb57e015bd17c7f7fdc /src/devices/cpu/dsp16/dsp16fe.cpp
parente42c2d2874cf9c1092c01ab5ce9ef997d465ce25 (diff)
emumem: A little more speedup. cache and specific change syntax, and are not pointers anymore [O. Galibert]
The last(?) two changes are: - Add a template parameter to everything (theoretically the address space width, in practice a level derived from it to keep as much compatibility between widths as possible) so that the shift size becomes a constant. - Change the syntax of declaring and initializing the caches and specifics so that they're embedded in the owner device. Solves lifetime issues and also removes one indirection (looking up the base dispatch pointer through the cache/specific pointer).
Diffstat (limited to 'src/devices/cpu/dsp16/dsp16fe.cpp')
-rw-r--r--src/devices/cpu/dsp16/dsp16fe.cpp6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/devices/cpu/dsp16/dsp16fe.cpp b/src/devices/cpu/dsp16/dsp16fe.cpp
index 2e79371bdd2..a972d14d8ff 100644
--- a/src/devices/cpu/dsp16/dsp16fe.cpp
+++ b/src/devices/cpu/dsp16/dsp16fe.cpp
@@ -30,7 +30,7 @@ bool dsp16_device_base::frontend::describe(opcode_desc &desc, opcode_desc const
desc.length = 1U;
desc.cycles = 1U;
- u16 const op(m_host.m_pcache->read_word(desc.physpc));
+ u16 const op(m_host.m_pcache.read_word(desc.physpc));
switch (op >> 11)
{
case 0x00: // goto JA
@@ -219,9 +219,9 @@ bool dsp16_device_base::frontend::describe(opcode_desc &desc, opcode_desc const
program fetch helpers
***********************************************************************/
-u16 dsp16_device_base::frontend::read_op(opcode_desc const &desc, u16 offset) const
+u16 dsp16_device_base::frontend::read_op(opcode_desc const &desc, u16 offset)
{
- return m_host.m_pcache->read_word((desc.physpc & XAAU_I_EXT) | ((desc.physpc + offset) & XAAU_I_MASK));
+ return m_host.m_pcache.read_word((desc.physpc & XAAU_I_EXT) | ((desc.physpc + offset) & XAAU_I_MASK));
}
/***********************************************************************