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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.h
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.h')
-rw-r--r--src/devices/cpu/dsp16/dsp16fe.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/src/devices/cpu/dsp16/dsp16fe.h b/src/devices/cpu/dsp16/dsp16fe.h
index e61c383f2c8..8dc3b96700e 100644
--- a/src/devices/cpu/dsp16/dsp16fe.h
+++ b/src/devices/cpu/dsp16/dsp16fe.h
@@ -66,9 +66,9 @@ protected:
private:
// program fetch helpers
- u16 read_op(opcode_desc const &desc, u16 offset) const;
- u16 read_op(opcode_desc const &desc) const { return read_op(desc, 0U); }
- u16 read_imm(opcode_desc const &desc) const { return read_op(desc, 1U); }
+ u16 read_op(opcode_desc const &desc, u16 offset);
+ u16 read_op(opcode_desc const &desc) { return read_op(desc, 0U); }
+ u16 read_imm(opcode_desc const &desc) { return read_op(desc, 1U); }
// non-trivial instruction helpers
bool describe_goto_b(opcode_desc &desc, u16 op);
@@ -98,7 +98,7 @@ private:
template <typename... T> static void flag_required_output_reg(opcode_desc &desc, T... reg) { flag_reg(desc.regreq, reg...); }
// need access to host device for program fetch
- dsp16_device_base const &m_host;
+ dsp16_device_base &m_host;
// for making sweeping assumptions
u32 m_cache_cycles = 0U, m_cache_last_cycles = 0U, m_cache_flags = 0U;