diff options
Diffstat (limited to 'src/devices/cpu/pdp1/pdp1dasm.cpp')
-rw-r--r-- | src/devices/cpu/pdp1/pdp1dasm.cpp | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/src/devices/cpu/pdp1/pdp1dasm.cpp b/src/devices/cpu/pdp1/pdp1dasm.cpp index 7376b752538..9b04c91ec87 100644 --- a/src/devices/cpu/pdp1/pdp1dasm.cpp +++ b/src/devices/cpu/pdp1/pdp1dasm.cpp @@ -1,13 +1,10 @@ // license:BSD-3-Clause // copyright-holders:Raphael Nabet #include "emu.h" -#include "cpu/pdp1/pdp1.h" +#include "pdp1dasm.h" +#include "pdp1.h" -/* PDP1 registers */ -static int ib; -static int y; - -static inline void ea (void) +inline void pdp1_disassembler::ea() { /* while (1) { @@ -20,15 +17,20 @@ static inline void ea (void) #define IN if (ib) util::stream_format(stream, " i") -CPU_DISASSEMBLE(pdp1) +u32 pdp1_disassembler::opcode_alignment() const +{ + return 4; +} + +offs_t pdp1_disassembler::disassemble(std::ostream &stream, offs_t pc, const data_buffer &opcodes, const data_buffer ¶ms) { int md; //int etime = 0; - md = oprom[0] << 24 | oprom[1] << 16 | oprom[2] << 8 | oprom[3]; + md = opcodes.r32(pc); - y = md & 07777; - ib = (md >> 12) & 1; /* */ + int y = md & 07777; + int ib = (md >> 12) & 1; /* */ switch (md >> 13) { case pdp1_device::AND: |