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code review and optimizations

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@180 be3aeb3a-fb24-0410-a615-afba39da0efa
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notaz 2007-07-03 19:23:12 +00:00
parent 3a5e6cf847
commit 85a36a57a8
10 changed files with 540 additions and 364 deletions
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28
cpu/Cyclone/Cyclone.h
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@ -15,20 +15,20 @@ extern int CycloneVer; // Version number of library
struct Cyclone
{
unsigned int d[8]; // [r7,#0x00]
unsigned int a[8]; // [r7,#0x20]
unsigned int pc; // [r7,#0x40] Memory Base+PC
unsigned char srh; // [r7,#0x44] Status Register high (T_S__III)
unsigned char xc; // [r7,#0x45] Extend flag (____??X?)
unsigned char flags; // [r7,#0x46] Flags (ARM order: ____NZCV) [68k order is XNZVC]
unsigned char irq; // [r7,#0x47] IRQ level
unsigned int osp; // [r7,#0x48] Other Stack Pointer (USP/SSP)
unsigned int vector; // [r7,#0x4c] IRQ vector (temporary)
unsigned int prev_pc;// [r7,#0x50] set to start address of currently executed opcode + 2 (if enabled in config.h)
unsigned int unused; // [r7,#0x54] Unused
int stopped; // [r7,#0x58] 1 == processor is in stopped state
int cycles; // [r7,#0x5c]
int membase; // [r7,#0x60] Memory Base (ARM address minus 68000 address)
unsigned int d[8]; // [r7,#0x00]
unsigned int a[8]; // [r7,#0x20]
unsigned int pc; // [r7,#0x40] Memory Base+PC
unsigned char srh; // [r7,#0x44] Status Register high (T_S__III)
unsigned char unused; // [r7,#0x45] Unused
unsigned char flags; // [r7,#0x46] Flags (ARM order: ____NZCV) [68k order is XNZVC]
unsigned char irq; // [r7,#0x47] IRQ level
unsigned int osp; // [r7,#0x48] Other Stack Pointer (USP/SSP)
unsigned int xc; // [r7,#0x4c] Extend flag (bit29: ??X? _)
unsigned int prev_pc; // [r7,#0x50] set to start address of currently executed opcode + 2 (if enabled in config.h)
unsigned int unused1; // [r7,#0x54] Unused
int stopped; // [r7,#0x58] 1 == processor is in stopped state
int cycles; // [r7,#0x5c]
int membase; // [r7,#0x60] Memory Base (ARM address minus 68000 address)
unsigned int (*checkpc)(unsigned int pc); // [r7,#0x64] - Called to recalc Memory Base+pc
unsigned char (*read8 )(unsigned int a); // [r7,#0x68]
unsigned short (*read16 )(unsigned int a); // [r7,#0x6c]