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// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
#include "pica.h"
#include "command_processor.h"
namespace Pica {
Regs registers;
namespace CommandProcessor {
static inline void WritePicaReg(u32 id, u32 value) {
u32 old_value = registers[id];
registers[id] = value;
switch(id) {
// TODO: Perform actions for anything which requires special treatment here...
default:
break;
}
}
static std::ptrdiff_t ExecuteCommandBlock(const u32* first_command_word) {
const CommandHeader& header = *(const CommandHeader*)(&first_command_word[1]);
u32* read_pointer = (u32*)first_command_word;
// TODO: Take parameter mask into consideration!
WritePicaReg(header.cmd_id, *read_pointer);
read_pointer += 2;
for (int i = 1; i < 1+header.extra_data_length; ++i) {
u32 cmd = header.cmd_id + ((header.group_commands) ? i : 0);
WritePicaReg(cmd, *read_pointer);
++read_pointer;
}
// align read pointer to 8 bytes
if ((first_command_word - read_pointer) % 2)
++read_pointer;
return read_pointer - first_command_word;
}
void ProcessCommandList(const u32* list, u32 size) {
u32* read_pointer = (u32*)list;
while (read_pointer < list + size) {
read_pointer += ExecuteCommandBlock(read_pointer);
}
}
} // namespace
} // namespace
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