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Math improvements to Suzy include file

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Alex Thissen 2024-08-09 13:53:41 +02:00 committed by Alex Thissen
parent eb6003aaf7
commit 3553975b02
1 changed files with 52 additions and 17 deletions
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41
include/_suzy.h
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@ -242,10 +242,38 @@ typedef struct PENPAL_1 {
#define MIKEYSPACE 0x02 #define MIKEYSPACE 0x02
#define SUZYSPACE 0x01 #define SUZYSPACE 0x01
// Structures for math registers
struct _math_unsigned_multiply {
unsigned int factor1; // 0xFC52 - 0xFC53
unsigned int factor2; // 0xFC54 - 0xFC55 write starts multiply
unsigned char unused2[10]; // 0xFC56 - 0xFC5F do not use
unsigned long product; // 0xFC60 - 0xFC63
unsigned char unused3[8]; // 0xFC64 - 0xFC6B do not use
unsigned long accumulate; // 0xFC6C - 0xFC6F
};
struct _math_signed_multiply {
int factor1; // 0xFC52 - 0xFC53
int factor2; // 0xFC54 - 0xFC55 write starts multiply
unsigned char unused2[10]; // 0xFC56 - 0xFC5F do not use
long product; // 0xFC60 - 0xFC63
unsigned char unused3[8]; // 0xFC64 - 0xFC6B do not use
long accumulate; // 0xFC6C - 0xFC6F
};
struct _math_divide {
unsigned long quotient; // 0xFC52 - 0xFC55
unsigned int divisor; // 0xFC56 - 0xFC57
unsigned char unused2[8]; // 0xFC58 - 0xFC5F do not use
unsigned int dividend2; // 0xFC60 - 0xFC61
unsigned int dividend1; // 0xFC62 - 0xFC63 write starts divide
unsigned char unused3[8]; // 0xFC64 - 0xFC6B do not use
unsigned long remainder; // 0xFC6C - 0xFC6F
};
/* Suzy Hardware Registers */ /* Suzy Hardware Registers */
struct __suzy { struct __suzy {
unsigned int tmpadr; // 0xFC00 Temporary address unsigned char *tmpadr; // 0xFC00 Temporary address
unsigned int tiltacc; // 0xFC02 Tilt accumulator unsigned int tiltacc; // 0xFC02 Tilt accumulator
unsigned int hoff; // 0xFC04 Offset to H edge of screen unsigned int hoff; // 0xFC04 Offset to H edge of screen
unsigned int voff; // 0xFC06 Offset to V edge of screen unsigned int voff; // 0xFC06 Offset to V edge of screen
@ -271,22 +299,29 @@ struct __suzy {
unsigned char *procaddr; // 0xFC2E address of current spr data proc unsigned char *procaddr; // 0xFC2E address of current spr data proc
unsigned char unused0[32]; // 0xFC30 - 0xFC4F reserved/unused unsigned char unused0[32]; // 0xFC30 - 0xFC4F reserved/unused
unsigned char unused1[2]; // 0xFC50 - 0xFC51 do not use unsigned char unused1[2]; // 0xFC50 - 0xFC51 do not use
union {
struct {
unsigned char mathd; // 0xFC52 unsigned char mathd; // 0xFC52
unsigned char mathc; // 0xFC53 unsigned char mathc; // 0xFC53
unsigned char mathb; // 0xFC54 unsigned char mathb; // 0xFC54
unsigned char matha; // 0xFC55 unsigned char matha; // 0xFC55 write starts a multiply operation
unsigned char mathp; // 0xFC56 unsigned char mathp; // 0xFC56
unsigned char mathn; // 0xFC57 unsigned char mathn; // 0xFC57
unsigned char unused2[8]; // 0xFC58 - 0xFC5F do not use unsigned char unused2[8]; // 0xFC58 - 0xFC5F do not use
unsigned char mathh; // 0xFC60 unsigned char mathh; // 0xFC60
unsigned char mathg; // 0xFC61 unsigned char mathg; // 0xFC61
unsigned char mathf; // 0xFC62 unsigned char mathf; // 0xFC62
unsigned char mathe; // 0xFC63 unsigned char mathe; // 0xFC63 write starts a divide operation
unsigned char unused3[8]; // 0xFC64 - 0xFC6B do not use unsigned char unused3[8]; // 0xFC64 - 0xFC6B do not use
unsigned char mathm; // 0xFC6C unsigned char mathm; // 0xFC6C
unsigned char mathl; // 0xFC6D unsigned char mathl; // 0xFC6D
unsigned char mathk; // 0xFC6E unsigned char mathk; // 0xFC6E
unsigned char mathj; // 0xFC6F unsigned char mathj; // 0xFC6F
};
struct _math_unsigned_multiply unsigned_multiply;
struct _math_signed_multiply signed_multiply;
struct _math_divide divide;
};
unsigned char unused4[16]; // 0xFC70 - 0xFC7F do not use unsigned char unused4[16]; // 0xFC70 - 0xFC7F do not use
unsigned char sprctl0; // 0xFC80 sprite control bits 0 unsigned char sprctl0; // 0xFC80 sprite control bits 0
unsigned char sprctl1; // 0xFC81 sprite control bits 1 unsigned char sprctl1; // 0xFC81 sprite control bits 1