Nyaaori/rockbox
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
rockbox/apps/plugins/rockboy/cpu-gb.h

60 lines
1 KiB
C
Raw Normal View History

Rockboy - gameboy emulation for rockbox, based on gnuboy. Still a bit early, but already playable on iRiver H1xx and the simulators. The archos recorder version is currently rather slow... git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6104 a1c6a512-1295-4272-9138-f99709370657
2005-03-02 23:49:38 +00:00
Centralised the ICODE_ATTR and IDATA_ATTR #defines. Renamed some musepack and rockboy headers to avoid clashes with rockbox headers. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6991 a1c6a512-1295-4272-9138-f99709370657
2005-07-03 14:05:12 +00:00
#ifndef __CPU_GB_H__
#define __CPU_GB_H__
Rockboy - gameboy emulation for rockbox, based on gnuboy. Still a bit early, but already playable on iRiver H1xx and the simulators. The archos recorder version is currently rather slow... git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6104 a1c6a512-1295-4272-9138-f99709370657
2005-03-02 23:49:38 +00:00
#include "defs.h"
union reg
{
Major Rockboy update. 1) Adapt Rockboy to smaller screens (H10, X5, and iPod Nano). 2) Add the ability to use a preset palette on color targets. Choose 'Set Palette' from the main menu. 3) Clean up the code to remove any unused code and variables. 4) Changed tabs to spaces. 5) Disable reading and writing sound when sound is disabled. 6) Disbable writing to the RTC since it is not implemented yet. 7) Minor optimizations from WAC gnuboy CE and iBoy. 8) Massive clean up of code to make it appear consistent. 9) Change all C++ style comments to C style. 10) Completely reorganize dynarec. Add fixmes to all unimplemented opcodes. Add debug writes for all opcodes. Attempt to implement a few opcodes myself. 11) Silence some warnings when built using dynarec. 12) Minor reshuffling of IRAM, may or not offer a speed increase. 13) Include fixes found in the short-lived gnuboy CVS. All in all, there's about a 10% improvement on my test roms when sound is disabled and slight improvement with sound. Especially noticable when there are few sprites on screen and less action is occurring. See FS #6567. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12216 a1c6a512-1295-4272-9138-f99709370657
2007-02-06 21:41:08 +00:00
byte b[2][2];
word w[2];
un32 d; /* padding for alignment, carry */
Rockboy - gameboy emulation for rockbox, based on gnuboy. Still a bit early, but already playable on iRiver H1xx and the simulators. The archos recorder version is currently rather slow... git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6104 a1c6a512-1295-4272-9138-f99709370657
2005-03-02 23:49:38 +00:00
};
struct cpu
{
Added dynarec(under construction) and outline for lcd modes git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6119 a1c6a512-1295-4272-9138-f99709370657
2005-03-03 19:44:02 +00:00
#ifdef DYNAREC
Major Rockboy update. 1) Adapt Rockboy to smaller screens (H10, X5, and iPod Nano). 2) Add the ability to use a preset palette on color targets. Choose 'Set Palette' from the main menu. 3) Clean up the code to remove any unused code and variables. 4) Changed tabs to spaces. 5) Disable reading and writing sound when sound is disabled. 6) Disbable writing to the RTC since it is not implemented yet. 7) Minor optimizations from WAC gnuboy CE and iBoy. 8) Massive clean up of code to make it appear consistent. 9) Change all C++ style comments to C style. 10) Completely reorganize dynarec. Add fixmes to all unimplemented opcodes. Add debug writes for all opcodes. Attempt to implement a few opcodes myself. 11) Silence some warnings when built using dynarec. 12) Minor reshuffling of IRAM, may or not offer a speed increase. 13) Include fixes found in the short-lived gnuboy CVS. All in all, there's about a 10% improvement on my test roms when sound is disabled and slight improvement with sound. Especially noticable when there are few sprites on screen and less action is occurring. See FS #6567. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12216 a1c6a512-1295-4272-9138-f99709370657
2007-02-06 21:41:08 +00:00
union reg a,b,c,d,e,hl,f,sp,pc;
Added dynarec(under construction) and outline for lcd modes git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6119 a1c6a512-1295-4272-9138-f99709370657
2005-03-03 19:44:02 +00:00
#else
Major Rockboy update. 1) Adapt Rockboy to smaller screens (H10, X5, and iPod Nano). 2) Add the ability to use a preset palette on color targets. Choose 'Set Palette' from the main menu. 3) Clean up the code to remove any unused code and variables. 4) Changed tabs to spaces. 5) Disable reading and writing sound when sound is disabled. 6) Disbable writing to the RTC since it is not implemented yet. 7) Minor optimizations from WAC gnuboy CE and iBoy. 8) Massive clean up of code to make it appear consistent. 9) Change all C++ style comments to C style. 10) Completely reorganize dynarec. Add fixmes to all unimplemented opcodes. Add debug writes for all opcodes. Attempt to implement a few opcodes myself. 11) Silence some warnings when built using dynarec. 12) Minor reshuffling of IRAM, may or not offer a speed increase. 13) Include fixes found in the short-lived gnuboy CVS. All in all, there's about a 10% improvement on my test roms when sound is disabled and slight improvement with sound. Especially noticable when there are few sprites on screen and less action is occurring. See FS #6567. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12216 a1c6a512-1295-4272-9138-f99709370657
2007-02-06 21:41:08 +00:00
union reg pc, sp, bc, de, hl, af;
Added dynarec(under construction) and outline for lcd modes git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6119 a1c6a512-1295-4272-9138-f99709370657
2005-03-03 19:44:02 +00:00
#endif
Major Rockboy update. 1) Adapt Rockboy to smaller screens (H10, X5, and iPod Nano). 2) Add the ability to use a preset palette on color targets. Choose 'Set Palette' from the main menu. 3) Clean up the code to remove any unused code and variables. 4) Changed tabs to spaces. 5) Disable reading and writing sound when sound is disabled. 6) Disbable writing to the RTC since it is not implemented yet. 7) Minor optimizations from WAC gnuboy CE and iBoy. 8) Massive clean up of code to make it appear consistent. 9) Change all C++ style comments to C style. 10) Completely reorganize dynarec. Add fixmes to all unimplemented opcodes. Add debug writes for all opcodes. Attempt to implement a few opcodes myself. 11) Silence some warnings when built using dynarec. 12) Minor reshuffling of IRAM, may or not offer a speed increase. 13) Include fixes found in the short-lived gnuboy CVS. All in all, there's about a 10% improvement on my test roms when sound is disabled and slight improvement with sound. Especially noticable when there are few sprites on screen and less action is occurring. See FS #6567. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12216 a1c6a512-1295-4272-9138-f99709370657
2007-02-06 21:41:08 +00:00
int ime, ima;
int speed;
int halt;
int div, tim;
int lcdc;
int snd;
Rockboy - gameboy emulation for rockbox, based on gnuboy. Still a bit early, but already playable on iRiver H1xx and the simulators. The archos recorder version is currently rather slow... git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6104 a1c6a512-1295-4272-9138-f99709370657
2005-03-02 23:49:38 +00:00
};
extern struct cpu cpu;
Added dynarec(under construction) and outline for lcd modes git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6119 a1c6a512-1295-4272-9138-f99709370657
2005-03-03 19:44:02 +00:00
#ifdef DYNAREC
struct dynarec_block {
union reg address;
void *block;
int length;
struct dynarec_block *next;
};
#define HASH_SIGNIFICANT_LOWER_BITS 8
#define HASH_BITMASK ((1<<HASH_SIGNIFICANT_LOWER_BITS)-1)
extern struct dynarec_block *address_map[1<<HASH_SIGNIFICANT_LOWER_BITS];
extern int blockclen;
#endif
Rockboy - gameboy emulation for rockbox, based on gnuboy. Still a bit early, but already playable on iRiver H1xx and the simulators. The archos recorder version is currently rather slow... git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6104 a1c6a512-1295-4272-9138-f99709370657
2005-03-02 23:49:38 +00:00
void cpu_reset(void);
Karl Kurbjun's patch #1407719: Here's another patch for rockboy that adds automatic frameskip (it's pretty rough as I haven't figured out an accurate timer), fullscreen support on the H300, and a bit of assembly and some IRAM stuff. I'm not sure if I'm doing the IRAM stuff correct though as it doesn't seem to make much of a difference if any. I've also added a statistics option that will show how many frames per second the gameboy is seeing (not what the player is getting) and what the frameskip is at. When you enable stats sometimes you have to go back into the menu and then come out to clear erronous values. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8397 a1c6a512-1295-4272-9138-f99709370657
2006-01-20 13:05:52 +00:00
void div_advance(int cnt) ICODE_ATTR;
void timer_advance(int cnt) ICODE_ATTR;
void lcdc_advance(int cnt) ICODE_ATTR;
void sound_advance(int cnt) ICODE_ATTR;
void cpu_timers(int cnt) ICODE_ATTR;
Functions and data into iram mode for iriver, seems faster. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6112 a1c6a512-1295-4272-9138-f99709370657
2005-03-03 13:50:09 +00:00
int cpu_emulate(int cycles) ICODE_ATTR;
Major Rockboy update. 1) Adapt Rockboy to smaller screens (H10, X5, and iPod Nano). 2) Add the ability to use a preset palette on color targets. Choose 'Set Palette' from the main menu. 3) Clean up the code to remove any unused code and variables. 4) Changed tabs to spaces. 5) Disable reading and writing sound when sound is disabled. 6) Disbable writing to the RTC since it is not implemented yet. 7) Minor optimizations from WAC gnuboy CE and iBoy. 8) Massive clean up of code to make it appear consistent. 9) Change all C++ style comments to C style. 10) Completely reorganize dynarec. Add fixmes to all unimplemented opcodes. Add debug writes for all opcodes. Attempt to implement a few opcodes myself. 11) Silence some warnings when built using dynarec. 12) Minor reshuffling of IRAM, may or not offer a speed increase. 13) Include fixes found in the short-lived gnuboy CVS. All in all, there's about a 10% improvement on my test roms when sound is disabled and slight improvement with sound. Especially noticable when there are few sprites on screen and less action is occurring. See FS #6567. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12216 a1c6a512-1295-4272-9138-f99709370657
2007-02-06 21:41:08 +00:00
inline int cpu_step(int max) ICODE_ATTR;
Rockboy - gameboy emulation for rockbox, based on gnuboy. Still a bit early, but already playable on iRiver H1xx and the simulators. The archos recorder version is currently rather slow... git-svn-id: svn://svn.rockbox.org/rockbox/trunk@6104 a1c6a512-1295-4272-9138-f99709370657
2005-03-02 23:49:38 +00:00
#endif
Reference in a new issue Copy permalink