Mercurial > repos > blastem
view z80_to_x86.h @ 478:2e4a4188cfb0
Fix DMA fill so that it does not cause observable changes to the FIFO. Get DMA copy mostly correct from an observable ffect perspective. DMA copy probably does not reflect internal implementation still given that evidence seems to suggest no FIFO usage at all.
author | Mike Pavone <pavone@retrodev.com> |
---|---|
date | Tue, 17 Sep 2013 00:11:45 -0700 |
parents | 140af5509ce7 |
children | acec5464fa1e 7c46891a29b1 |
line wrap: on
line source
/* Copyright 2013 Michael Pavone This file is part of BlastEm. BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text. */ #ifndef Z80_TO_X86_H_ #define Z80_TO_X86_H_ #include "z80inst.h" #include "x86_backend.h" #define ZNUM_MEM_AREAS 4 #define ZMAX_NATIVE_SIZE 128 enum { ZF_C = 0, ZF_N, ZF_PV, ZF_H, ZF_Z, ZF_S, ZF_NUM }; typedef struct { uint8_t * cur_code; uint8_t * code_end; uint8_t *ram_inst_sizes; deferred_addr * deferred; uint32_t flags; int8_t regs[Z80_UNUSED]; } x86_z80_options; typedef struct { void * native_pc; uint16_t sp; uint8_t flags[ZF_NUM]; uint16_t bank_reg; uint8_t regs[Z80_A+1]; uint8_t im; uint8_t alt_regs[Z80_A+1]; uint32_t target_cycle; uint32_t current_cycle; uint8_t alt_flags[ZF_NUM]; uint8_t * mem_pointers[ZNUM_MEM_AREAS]; uint8_t iff1; uint8_t iff2; uint16_t scratch1; uint16_t scratch2; void * extra_pc; uint32_t sync_cycle; uint32_t int_cycle; native_map_slot * static_code_map; native_map_slot * banked_code_map; void * options; void * system; uint8_t ram_code_flags[(8 * 1024)/128/8]; uint32_t int_enable_cycle; uint16_t pc; } z80_context; void translate_z80_stream(z80_context * context, uint32_t address); void init_x86_z80_opts(x86_z80_options * options); void init_z80_context(z80_context * context, x86_z80_options * options); uint8_t * z80_get_native_address(z80_context * context, uint32_t address); uint8_t * z80_get_native_address_trans(z80_context * context, uint32_t address); z80_context * z80_handle_code_write(uint32_t address, z80_context * context); void z80_run(z80_context * context); void z80_reset(z80_context * context); void zinsert_breakpoint(z80_context * context, uint16_t address, uint8_t * bp_handler); void zremove_breakpoint(z80_context * context, uint16_t address); #endif //Z80_TO_X86_H_