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| author | schneefux <schneefux+commit@schneefux.xyz> | 2013-10-07 14:11:24 +0200 |
|---|---|---|
| committer | schneefux <schneefux+commit@schneefux.xyz> | 2013-10-07 14:11:24 +0200 |
| commit | 677385ffdd1e330cfba4dd712ca58595feeea41d (patch) | |
| tree | d256c7c6a86b3efe4af2e97fa72cc35eb32ec33e /key.c | |
| download | fx-maze-677385ffdd1e330cfba4dd712ca58595feeea41d.tar.gz fx-maze-677385ffdd1e330cfba4dd712ca58595feeea41d.zip | |
initial commit
Diffstat (limited to 'key.c')
| -rw-r--r-- | key.c | 101 |
1 files changed, 101 insertions, 0 deletions
@@ -0,0 +1,101 @@ +#include "global.h"
+#include "key.h"
+#include "hardware.h"
+
+static const unsigned short* keyboard_register = (unsigned short*)0xA44B0000;
+static unsigned short lastkey[8];
+
+int PRGM_GetKey()
+{
+ unsigned char buffer[12];
+ Keyboard_PRGM_GetKey( buffer );
+ return (buffer[1] & 0x0F) * 10 + ((buffer[2] & 0xF0) >> 4);
+}
+
+static void delay()
+{
+ unsigned int i;
+ for(i=0 ; i<5 ; i++);
+}
+
+static unsigned char CheckKeyRow(int code)
+{
+ unsigned int result=0;
+ short*PORTB_CTRL=(void*)0xA4000102;
+ short*PORTM_CTRL=(void*)0xA4000118;
+ char*PORTB=(void*)0xA4000122;
+ char*PORTM=(void*)0xA4000138;
+ char*PORTA=(void*)0xA4000120;
+ short smask;
+ char cmask;
+ unsigned char column, row;
+
+ column = code>>4;
+ row = code &0x0F;
+
+ smask = 0x0003 << (( row %8)*2);
+ cmask = ~( 1 << ( row %8) );
+ if(row <8)
+ {
+ *PORTB_CTRL = 0xAAAA ^ smask;
+ *PORTM_CTRL = (*PORTM_CTRL & 0xFF00 ) | 0x00AA;
+ delay();
+ *PORTB = cmask;
+ *PORTM = (*PORTM & 0xF0 ) | 0x0F;
+ }
+ else
+ {
+ *PORTB_CTRL = 0xAAAA;
+ *PORTM_CTRL = ((*PORTM_CTRL & 0xFF00 ) | 0x00AA) ^ smask;
+ delay();
+ *PORTB = 0xFF;
+ *PORTM = (*PORTM & 0xF0 ) | cmask;
+ }
+ delay();
+ result = (~(*PORTA))>>column & 1;
+ delay();
+ *PORTB_CTRL = 0xAAAA;
+ *PORTM_CTRL = (*PORTM_CTRL & 0xFF00 ) | 0x00AA;
+ delay();
+ *PORTB_CTRL = 0x5555;
+ *PORTM_CTRL = (*PORTM_CTRL & 0xFF00 ) | 0x0055;
+ delay();
+
+ return result;
+}
+
+void keyupdate()
+ {
+ if(getCalc() == fx9860GII_2)
+ {
+ memcpy(lastkey, keyboard_register, sizeof(unsigned short) << 3);
+ }
+}
+
+int keydown(int code)
+{
+ if(getCalc() != UNKNOWN)
+ {
+ if(getCalc() == fx9860GII_2)
+ {
+ unsigned char row = code%10;
+
+ return (0 != (lastkey[row >> 1] & 1 << code / 10 - 1 + ((row & 1) << 3)));
+ }
+ else
+ {
+ return CheckKeyRow((code % 10) + ((code / 10 - 1) << 4));
+ }
+ }
+ else
+ {
+ if(IsEmulator)
+ {
+ return CheckKeyRow((code % 10) + ((code / 10 - 1) << 4));
+ }
+ else
+ {
+ return PRGM_GetKey() == code;
+ }
+ }
+}
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