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Attempts to get in-SNA software to start.

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This commit is contained in:
Thomas Harte
2021-04-25 13:18:26 -04:00
parent 0ebd900e40
commit a5098a60ec
3 changed files with 14 additions and 1 deletions
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Storage/State/SNA.cpp
+11 -1
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@@ -63,9 +63,19 @@ std::unique_ptr<Analyser::Static::Target> SNA::load(const std::string &file_name
state->z80.registers.stack_pointer = file.get16le();
state->z80.registers.interrupt_mode = file.get8();
// TODO: border colour, RAM contents, then pop the program counter.
// 1A border colour
const uint8_t border_colour = file.get8();
(void)border_colour; // TODO.
// 1B– 48kb RAM contents
state->ram = file.read(48*1024);
// Establish program counter.
state->z80.registers.program_counter = state->ram[state->z80.registers.stack_pointer];
state->ram[state->z80.registers.stack_pointer] = 0;
state->z80.registers.program_counter |= state->ram[state->z80.registers.stack_pointer+1] << 8;
state->ram[state->z80.registers.stack_pointer+1] = 0;
state->z80.registers.stack_pointer += 2;
return result;
}