about summary refs log tree commit diff stats
path: root/gba/source/main.c
diff options
context:
space:
mode:
Diffstat (limited to 'gba/source/main.c')
-rw-r--r--gba/source/main.c134
1 files changed, 114 insertions, 20 deletions
diff --git a/gba/source/main.c b/gba/source/main.c index 9d05189..567165a 100644 --- a/gba/source/main.c +++ b/gba/source/main.c
@@ -7,12 +7,15 @@
7#include <gba_sio.h> 7#include <gba_sio.h>
8#include <stdio.h> 8#include <stdio.h>
9#include <stdlib.h> 9#include <stdlib.h>
10#include "libSave.h"
10 11
11u32 getGameSize(void) 12u8 save_data[0x20000] __attribute__ ((section (".sbss")));
13
14s32 getGameSize(void)
12{ 15{
13 if(*(vu32*)(0x08000004) != 0x51AEFF24) 16 if(*(vu32*)(0x08000004) != 0x51AEFF24)
14 return 0; 17 return -1;
15 u32 i; 18 s32 i;
16 for(i = (1<<20); i < (1<<25); i<<=1) 19 for(i = (1<<20); i < (1<<25); i<<=1)
17 { 20 {
18 vu16 *rompos = (vu16*)(0x08000000+i); 21 vu16 *rompos = (vu16*)(0x08000000+i);
@@ -30,6 +33,8 @@ u32 getGameSize(void)
30 } 33 }
31 return i; 34 return i;
32} 35}
36#define JOY_WRITE 2
37#define JOY_READ 4
33//--------------------------------------------------------------------------------- 38//---------------------------------------------------------------------------------
34// Program entry point 39// Program entry point
35//--------------------------------------------------------------------------------- 40//---------------------------------------------------------------------------------
@@ -49,43 +54,132 @@ int main(void) {
49 u32 i; 54 u32 i;
50 iprintf("\x1b[9;10HROM Dumper\n"); 55 iprintf("\x1b[9;10HROM Dumper\n");
51 iprintf("\x1b[10;5HPlease look at the TV\n"); 56 iprintf("\x1b[10;5HPlease look at the TV\n");
52 REG_HS_CTRL |= 6; 57 REG_HS_CTRL |= (JOY_WRITE|JOY_READ);
58 u32 prevIrqMask = REG_IME;
53 while (1) { 59 while (1) {
54 if((REG_HS_CTRL&4)) 60 if((REG_HS_CTRL&JOY_READ))
55 { 61 {
56 REG_HS_CTRL |= 4; 62 irqDisable(IRQ_VBLANK);
57 u32 gamesize = getGameSize(); 63 REG_IME = 0;
64 REG_HS_CTRL |= (JOY_WRITE|JOY_READ);
65 s32 gamesize = getGameSize();
66 u32 savesize = SaveSize(save_data,gamesize);
58 REG_JOYTR = gamesize; 67 REG_JOYTR = gamesize;
59 while((REG_HS_CTRL&4) == 0) ; 68 //wait for a cmd receive for safety
60 REG_HS_CTRL |= 4; 69 while((REG_HS_CTRL&JOY_WRITE) == 0) ;
61 if(gamesize == 0) 70 REG_HS_CTRL |= (JOY_WRITE|JOY_READ);
71 REG_JOYTR = savesize;
72 //wait for a cmd receive for safety
73 while((REG_HS_CTRL&JOY_WRITE) == 0) ;
74 REG_HS_CTRL |= (JOY_WRITE|JOY_READ);
75 if(gamesize == -1)
62 { 76 {
63 REG_JOYTR = 0; 77 REG_JOYTR = 0;
78 REG_IME = prevIrqMask;
79 irqEnable(IRQ_VBLANK);
64 continue; //nothing to read 80 continue; //nothing to read
65 } 81 }
66 //game in, send header 82 //game in, send header
67 for(i = 0; i < 0xC0; i+=4) 83 for(i = 0; i < 0xC0; i+=4)
68 { 84 {
69 REG_JOYTR = *(vu32*)(0x08000000+i); 85 REG_JOYTR = *(vu32*)(0x08000000+i);
70 while((REG_HS_CTRL&4) == 0) ; 86 while((REG_HS_CTRL&JOY_READ) == 0) ;
71 REG_HS_CTRL |= 4; 87 REG_HS_CTRL |= (JOY_WRITE|JOY_READ);
72 } 88 }
89 REG_JOYTR = 0;
73 //wait for other side to choose 90 //wait for other side to choose
74 while((REG_HS_CTRL&2) == 0) ; 91 while((REG_HS_CTRL&JOY_WRITE) == 0) ;
75 REG_HS_CTRL |= 2; 92 REG_HS_CTRL |= (JOY_WRITE|JOY_READ);
76 if(REG_JOYRE == 0) 93 u32 choseval = REG_JOYRE;
94 if(choseval == 0)
77 { 95 {
78 REG_JOYTR = 0; 96 REG_JOYTR = 0;
97 REG_IME = prevIrqMask;
98 irqEnable(IRQ_VBLANK);
79 continue; //nothing to read 99 continue; //nothing to read
80 } 100 }
81 //dump the game 101 else if(choseval == 1)
82 for(i = 0; i < gamesize; i+=4)
83 { 102 {
84 REG_JOYTR = *(vu32*)(0x08000000+i); 103 //dump the game
85 while((REG_HS_CTRL&4) == 0) ; 104 for(i = 0; i < gamesize; i+=4)
86 REG_HS_CTRL |= 4; 105 {
106 REG_JOYTR = *(vu32*)(0x08000000+i);
107 while((REG_HS_CTRL&JOY_READ) == 0) ;
108 REG_HS_CTRL |= (JOY_WRITE|JOY_READ);
109 }
110 }
111 else if(choseval == 2)
112 {
113 //backup save
114 switch (savesize){
115 case 0x200:
116 GetSave_EEPROM_512B(save_data);
117 break;
118 case 0x2000:
119 GetSave_EEPROM_8KB(save_data);
120 break;
121 case 0x8000:
122 GetSave_SRAM_32KB(save_data);
123 break;
124 case 0x10000:
125 GetSave_FLASH_64KB(save_data);
126 break;
127 case 0x20000:
128 GetSave_FLASH_128KB(save_data);
129 break;
130 default:
131 break;
132 }
133 REG_JOYTR = savesize;
134 //wait for a cmd receive for safety
135 while((REG_HS_CTRL&JOY_WRITE) == 0) ;
136 REG_HS_CTRL |= (JOY_WRITE|JOY_READ);
137 //send the save
138 for(i = 0; i < savesize; i+=4)
139 {
140 REG_JOYTR = *(vu32*)(save_data+i);
141 while((REG_HS_CTRL&JOY_READ) == 0) ;
142 REG_HS_CTRL |= (JOY_WRITE|JOY_READ);
143 }
144 }
145 else if(choseval == 3)
146 {
147 REG_JOYTR = savesize;
148 //receive the save
149 for(i = 0; i < savesize; i+=4)
150 {
151 while((REG_HS_CTRL&JOY_WRITE) == 0) ;
152 REG_HS_CTRL |= (JOY_WRITE|JOY_READ);
153 *(vu32*)(save_data+i) = REG_JOYRE;
154 }
155 //write it
156 switch (savesize){
157 case 0x200:
158 PutSave_EEPROM_512B(save_data);
159 break;
160 case 0x2000:
161 PutSave_EEPROM_8KB(save_data);
162 break;
163 case 0x8000:
164 PutSave_SRAM_32KB(save_data);
165 break;
166 case 0x10000:
167 PutSave_FLASH_64KB(save_data);
168 break;
169 case 0x20000:
170 PutSave_FLASH_128KB(save_data);
171 break;
172 default:
173 break;
174 }
175 REG_JOYTR = 0;
176 //wait for a cmd receive for safety
177 while((REG_HS_CTRL&JOY_WRITE) == 0) ;
178 REG_HS_CTRL |= (JOY_WRITE|JOY_READ);
87 } 179 }
88 REG_JOYTR = 0; 180 REG_JOYTR = 0;
181 REG_IME = prevIrqMask;
182 irqEnable(IRQ_VBLANK);
89 } 183 }
90 Halt(); 184 Halt();
91 } 185 }
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-11-21 19:34:08 +0000