//
// Jaguar memory and I/O physical (hosted!) memory
//
-// by James L. Hammons
+// by James Hammons
//
-// JLH = James L. Hammons
+// JLH = James Hammons
//
// WHO WHEN WHAT
// --- ---------- -----------------------------------------------------------
#include "memory.h"
-uint8 jagMemSpace[0xF20000]; // The entire memory space of the Jaguar...!
-
-uint8 * jaguarMainRAM = &jagMemSpace[0x000000];
-uint8 * jaguarMainROM = &jagMemSpace[0x800000];
-uint8 * cdRAM = &jagMemSpace[0xDFFF00];
-uint8 * gpuRAM = &jagMemSpace[0xF03000];
-uint8 * dspRAM = &jagMemSpace[0xF1B000];
-
-uint8 jaguarBootROM[0x040000]; // 68K CPU BIOS ROM--uses only half of this!
-uint8 jaguarCDBootROM[0x040000]; // 68K CPU CD BIOS ROM (256K)
+uint8_t jagMemSpace[0xF20000]; // The entire memory space of the Jaguar...!
+uint8_t * jaguarMainRAM = &jagMemSpace[0x000000];
+uint8_t * jaguarMainROM = &jagMemSpace[0x800000];
+uint8_t * cdRAM = &jagMemSpace[0xDFFF00];
+uint8_t * gpuRAM = &jagMemSpace[0xF03000];
+uint8_t * dspRAM = &jagMemSpace[0xF1B000];
#if 0
union Word
{
- uint16 word;
+ uint16_t word;
struct {
// This changes depending on endianness...
#ifdef __BIG_ENDIAN__
- uint8 hi, lo; // Big endian
+ uint8_t hi, lo; // Big endian
#else
- uint8 lo, hi; // Little endian
+ uint8_t lo, hi; // Little endian
#endif
};
};
#if 0
union DWord
{
- uint32 dword;
+ uint32_t dword;
struct
{
#ifdef __BIG_ENDIAN__
- uint16 hiw, low;
+ uint16_t hiw, low;
#else
- uint16 low, hiw;
+ uint16_t low, hiw;
#endif
};
};
//Not sure if this is a good approach yet...
//should be if we use proper aliasing, and htonl and friends...
#if 1
-uint32 & butch = *((uint32 *)&jagMemSpace[0xDFFF00]); // base of Butch == interrupt control register, R/W
-uint32 & dscntrl = *((uint32 *)&jagMemSpace[0xDFFF04]); // DSA control register, R/W
-uint16 & ds_data = *((uint16 *)&jagMemSpace[0xDFFF0A]); // DSA TX/RX data, R/W
-uint32 & i2cntrl = *((uint32 *)&jagMemSpace[0xDFFF10]); // i2s bus control register, R/W
-uint32 & sbcntrl = *((uint32 *)&jagMemSpace[0xDFFF14]); // CD subcode control register, R/W
-uint32 & subdata = *((uint32 *)&jagMemSpace[0xDFFF18]); // Subcode data register A
-uint32 & subdatb = *((uint32 *)&jagMemSpace[0xDFFF1C]); // Subcode data register B
-uint32 & sb_time = *((uint32 *)&jagMemSpace[0xDFFF20]); // Subcode time and compare enable (D24)
-uint32 & fifo_data = *((uint32 *)&jagMemSpace[0xDFFF24]); // i2s FIFO data
-uint32 & i2sdat2 = *((uint32 *)&jagMemSpace[0xDFFF28]); // i2s FIFO data (old)
-uint32 & unknown = *((uint32 *)&jagMemSpace[0xDFFF2C]); // Seems to be some sort of I2S interface
+uint32_t & butch = *((uint32_t *)&jagMemSpace[0xDFFF00]); // base of Butch == interrupt control register, R/W
+uint32_t & dscntrl = *((uint32_t *)&jagMemSpace[0xDFFF04]); // DSA control register, R/W
+uint16_t & ds_data = *((uint16_t *)&jagMemSpace[0xDFFF0A]); // DSA TX/RX data, R/W
+uint32_t & i2cntrl = *((uint32_t *)&jagMemSpace[0xDFFF10]); // i2s bus control register, R/W
+uint32_t & sbcntrl = *((uint32_t *)&jagMemSpace[0xDFFF14]); // CD subcode control register, R/W
+uint32_t & subdata = *((uint32_t *)&jagMemSpace[0xDFFF18]); // Subcode data register A
+uint32_t & subdatb = *((uint32_t *)&jagMemSpace[0xDFFF1C]); // Subcode data register B
+uint32_t & sb_time = *((uint32_t *)&jagMemSpace[0xDFFF20]); // Subcode time and compare enable (D24)
+uint32_t & fifo_data = *((uint32_t *)&jagMemSpace[0xDFFF24]); // i2s FIFO data
+uint32_t & i2sdat2 = *((uint32_t *)&jagMemSpace[0xDFFF28]); // i2s FIFO data (old)
+uint32_t & unknown = *((uint32_t *)&jagMemSpace[0xDFFF2C]); // Seems to be some sort of I2S interface
#else
-uint32 butch, dscntrl, ds_data, i2cntrl, sbcntrl, subdata, subdatb, sb_time, fifo_data, i2sdat2, unknown;
+uint32_t butch, dscntrl, ds_data, i2cntrl, sbcntrl, subdata, subdatb, sb_time, fifo_data, i2sdat2, unknown;
#endif
#warning "Need to separate out this stuff (or do we???)"
//this isn't endian safe...
#define BSWAP64(x) ((htonl(x & 0xFFFFFFFF) << 32) | htonl(x >> 32))
// Actually, we use ESAFExx() macros instead of this, and we use GCC to check the endianness...
+// Actually, considering that "byteswap.h" doesn't exist elsewhere, the above
+// is probably our best bet here. Just need to rename them to ESAFExx().
-#if 0
-uint16 * memcon1_t = (uint16 *)&jagMemSpace[0xF00000];
-uint16 & memcon1 = *memcon1_t;
-#else
-uint16 & memcon1 = *((uint16 *)&jagMemSpace[0xF00000]);
-uint16 & memcon2 = *((uint16 *)&jagMemSpace[0xF00002]);
-uint16 & hc = *((uint16 *)&jagMemSpace[0xF00004]);
-uint16 & vc = *((uint16 *)&jagMemSpace[0xF00006]);
-uint16 & lph = *((uint16 *)&jagMemSpace[0xF00008]);
-uint16 & lpv = *((uint16 *)&jagMemSpace[0xF0000A]);
-#endif
+// Look at <endian.h> and see if that header is portable or not.
-uint32 obData, olp, obf, vmode, bord1, bord2, hp, hbb, hbe, hs, hvs,
- hdb1, hdb2, hde, vp, vbb, vbe, vs, vdb, vde, veb, vee, vi, pit0, pit1, heq, bg, int1, int2, clut, lbuf,
- g_flags, g_mtxc, g_mtxa, g_end, g_pc, g_ctrl, g_hidata, g_remain, g_divctrl,
- a1_base, a1_pixel, a1_flags, a1_clip, a1_step, a1_fstep, a1_fpixel, a1_inc, a1_finc,
- a2_base, a2_flags, a2_pixel, a2_mask, a2_step, b_cmd, b_count, b_srcd, b_dstd, b_dstz, b_srcz1, b_srcz2,
- b_patd, b_iinc, b_zinc, b_stop, b_i3, b_i2, b_i1, b_i0, b_z3, b_z2, b_z1, b_z0,
- jpit1, jpit2, jpit3, jpit4, clk1, clk2, clk3, j_int, asidata, asistat, asictrl, asiclk, joystick,
- joybuts, d_flags, d_mtxc, d_mtxa, d_end, d_pc, d_ctrl, d_mod, d_remain, d_divctrl, d_machi,
- ltxd, rtxd, sstat, sclk, smode;
+uint16_t & memcon1 = *((uint16_t *)&jagMemSpace[0xF00000]);
+uint16_t & memcon2 = *((uint16_t *)&jagMemSpace[0xF00002]);
+uint16_t & hc = *((uint16_t *)&jagMemSpace[0xF00004]);
+uint16_t & vc = *((uint16_t *)&jagMemSpace[0xF00006]);
+uint16_t & lph = *((uint16_t *)&jagMemSpace[0xF00008]);
+uint16_t & lpv = *((uint16_t *)&jagMemSpace[0xF0000A]);
+uint64_t & obData = *((uint64_t *)&jagMemSpace[0xF00010]);
+uint32_t & olp = *((uint32_t *)&jagMemSpace[0xF00020]);
+uint16_t & obf = *((uint16_t *)&jagMemSpace[0xF00026]);
+uint16_t & vmode = *((uint16_t *)&jagMemSpace[0xF00028]);
+uint16_t & bord1 = *((uint16_t *)&jagMemSpace[0xF0002A]);
+uint16_t & bord2 = *((uint16_t *)&jagMemSpace[0xF0002C]);
+uint16_t & hp = *((uint16_t *)&jagMemSpace[0xF0002E]);
+uint16_t & hbb = *((uint16_t *)&jagMemSpace[0xF00030]);
+uint16_t & hbe = *((uint16_t *)&jagMemSpace[0xF00032]);
+uint16_t & hs = *((uint16_t *)&jagMemSpace[0xF00034]);
+uint16_t & hvs = *((uint16_t *)&jagMemSpace[0xF00036]);
+uint16_t & hdb1 = *((uint16_t *)&jagMemSpace[0xF00038]);
+uint16_t & hdb2 = *((uint16_t *)&jagMemSpace[0xF0003A]);
+uint16_t & hde = *((uint16_t *)&jagMemSpace[0xF0003C]);
+uint16_t & vp = *((uint16_t *)&jagMemSpace[0xF0003E]);
+uint16_t & vbb = *((uint16_t *)&jagMemSpace[0xF00040]);
+uint16_t & vbe = *((uint16_t *)&jagMemSpace[0xF00042]);
+uint16_t & vs = *((uint16_t *)&jagMemSpace[0xF00044]);
+uint16_t & vdb = *((uint16_t *)&jagMemSpace[0xF00046]);
+uint16_t & vde = *((uint16_t *)&jagMemSpace[0xF00048]);
+uint16_t & veb = *((uint16_t *)&jagMemSpace[0xF0004A]);
+uint16_t & vee = *((uint16_t *)&jagMemSpace[0xF0004C]);
+uint16_t & vi = *((uint16_t *)&jagMemSpace[0xF0004E]);
+uint16_t & pit0 = *((uint16_t *)&jagMemSpace[0xF00050]);
+uint16_t & pit1 = *((uint16_t *)&jagMemSpace[0xF00052]);
+uint16_t & heq = *((uint16_t *)&jagMemSpace[0xF00054]);
+uint32_t & bg = *((uint32_t *)&jagMemSpace[0xF00058]);
+uint16_t & int1 = *((uint16_t *)&jagMemSpace[0xF000E0]);
+uint16_t & int2 = *((uint16_t *)&jagMemSpace[0xF000E2]);
+uint8_t * clut = (uint8_t *) &jagMemSpace[0xF00400];
+uint8_t * lbuf = (uint8_t *) &jagMemSpace[0xF00800];
+uint32_t & g_flags = *((uint32_t *)&jagMemSpace[0xF02100]);
+uint32_t & g_mtxc = *((uint32_t *)&jagMemSpace[0xF02104]);
+uint32_t & g_mtxa = *((uint32_t *)&jagMemSpace[0xF02108]);
+uint32_t & g_end = *((uint32_t *)&jagMemSpace[0xF0210C]);
+uint32_t & g_pc = *((uint32_t *)&jagMemSpace[0xF02110]);
+uint32_t & g_ctrl = *((uint32_t *)&jagMemSpace[0xF02114]);
+uint32_t & g_hidata = *((uint32_t *)&jagMemSpace[0xF02118]);
+uint32_t & g_divctrl = *((uint32_t *)&jagMemSpace[0xF0211C]);
+uint32_t g_remain; // Dual register with $F0211C
+uint32_t & a1_base = *((uint32_t *)&jagMemSpace[0xF02200]);
+uint32_t & a1_flags = *((uint32_t *)&jagMemSpace[0xF02204]);
+uint32_t & a1_clip = *((uint32_t *)&jagMemSpace[0xF02208]);
+uint32_t & a1_pixel = *((uint32_t *)&jagMemSpace[0xF0220C]);
+uint32_t & a1_step = *((uint32_t *)&jagMemSpace[0xF02210]);
+uint32_t & a1_fstep = *((uint32_t *)&jagMemSpace[0xF02214]);
+uint32_t & a1_fpixel = *((uint32_t *)&jagMemSpace[0xF02218]);
+uint32_t & a1_inc = *((uint32_t *)&jagMemSpace[0xF0221C]);
+uint32_t & a1_finc = *((uint32_t *)&jagMemSpace[0xF02220]);
+uint32_t & a2_base = *((uint32_t *)&jagMemSpace[0xF02224]);
+uint32_t & a2_flags = *((uint32_t *)&jagMemSpace[0xF02228]);
+uint32_t & a2_mask = *((uint32_t *)&jagMemSpace[0xF0222C]);
+uint32_t & a2_pixel = *((uint32_t *)&jagMemSpace[0xF02230]);
+uint32_t & a2_step = *((uint32_t *)&jagMemSpace[0xF02234]);
+uint32_t & b_cmd = *((uint32_t *)&jagMemSpace[0xF02238]);
+uint32_t & b_count = *((uint32_t *)&jagMemSpace[0xF0223C]);
+uint64_t & b_srcd = *((uint64_t *)&jagMemSpace[0xF02240]);
+uint64_t & b_dstd = *((uint64_t *)&jagMemSpace[0xF02248]);
+uint64_t & b_dstz = *((uint64_t *)&jagMemSpace[0xF02250]);
+uint64_t & b_srcz1 = *((uint64_t *)&jagMemSpace[0xF02258]);
+uint64_t & b_srcz2 = *((uint64_t *)&jagMemSpace[0xF02260]);
+uint64_t & b_patd = *((uint64_t *)&jagMemSpace[0xF02268]);
+uint32_t & b_iinc = *((uint32_t *)&jagMemSpace[0xF02270]);
+uint32_t & b_zinc = *((uint32_t *)&jagMemSpace[0xF02274]);
+uint32_t & b_stop = *((uint32_t *)&jagMemSpace[0xF02278]);
+uint32_t & b_i3 = *((uint32_t *)&jagMemSpace[0xF0227C]);
+uint32_t & b_i2 = *((uint32_t *)&jagMemSpace[0xF02280]);
+uint32_t & b_i1 = *((uint32_t *)&jagMemSpace[0xF02284]);
+uint32_t & b_i0 = *((uint32_t *)&jagMemSpace[0xF02288]);
+uint32_t & b_z3 = *((uint32_t *)&jagMemSpace[0xF0228C]);
+uint32_t & b_z2 = *((uint32_t *)&jagMemSpace[0xF02290]);
+uint32_t & b_z1 = *((uint32_t *)&jagMemSpace[0xF02294]);
+uint32_t & b_z0 = *((uint32_t *)&jagMemSpace[0xF02298]);
+uint16_t & jpit1 = *((uint16_t *)&jagMemSpace[0xF10000]);
+uint16_t & jpit2 = *((uint16_t *)&jagMemSpace[0xF10002]);
+uint16_t & jpit3 = *((uint16_t *)&jagMemSpace[0xF10004]);
+uint16_t & jpit4 = *((uint16_t *)&jagMemSpace[0xF10006]);
+uint16_t & clk1 = *((uint16_t *)&jagMemSpace[0xF10010]);
+uint16_t & clk2 = *((uint16_t *)&jagMemSpace[0xF10012]);
+uint16_t & clk3 = *((uint16_t *)&jagMemSpace[0xF10014]);
+uint16_t & j_int = *((uint16_t *)&jagMemSpace[0xF10020]);
+uint16_t & asidata = *((uint16_t *)&jagMemSpace[0xF10030]);
+uint16_t & asictrl = *((uint16_t *)&jagMemSpace[0xF10032]);
+uint16_t asistat; // Dual register with $F10032
+uint16_t & asiclk = *((uint16_t *)&jagMemSpace[0xF10034]);
+uint16_t & joystick = *((uint16_t *)&jagMemSpace[0xF14000]);
+uint16_t & joybuts = *((uint16_t *)&jagMemSpace[0xF14002]);
+uint32_t & d_flags = *((uint32_t *)&jagMemSpace[0xF1A100]);
+uint32_t & d_mtxc = *((uint32_t *)&jagMemSpace[0xF1A104]);
+uint32_t & d_mtxa = *((uint32_t *)&jagMemSpace[0xF1A108]);
+uint32_t & d_end = *((uint32_t *)&jagMemSpace[0xF1A10C]);
+uint32_t & d_pc = *((uint32_t *)&jagMemSpace[0xF1A110]);
+uint32_t & d_ctrl = *((uint32_t *)&jagMemSpace[0xF1A114]);
+uint32_t & d_mod = *((uint32_t *)&jagMemSpace[0xF1A118]);
+uint32_t & d_divctrl = *((uint32_t *)&jagMemSpace[0xF1A11C]);
+uint32_t d_remain; // Dual register with $F0211C
+uint32_t & d_machi = *((uint32_t *)&jagMemSpace[0xF1A120]);
+uint16_t & ltxd = *((uint16_t *)&jagMemSpace[0xF1A148]);
+uint16_t lrxd; // Dual register with $F1A148
+uint16_t & rtxd = *((uint16_t *)&jagMemSpace[0xF1A14C]);
+uint16_t rrxd; // Dual register with $F1A14C
+uint8_t & sclk = *((uint8_t *) &jagMemSpace[0xF1A150]);
+uint8_t sstat; // Dual register with $F1A150
+uint32_t & smode = *((uint32_t *)&jagMemSpace[0xF1A154]);
// Memory debugging identifiers
projects / virtualjaguar / blobdiff