X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=Pico%2Fcarthw%2Fsvp%2Fcompiler.c;h=2db22b1ff0d668e27a0f21145af2f1e7d906d40c;hb=43e6eaad0b73b37907be3342e0fd4cf65919e9f6;hp=cfaa8a76e6171f7eb69986a9ea226fc68b56b975;hpb=89fea1e97270502440365bfd2f4aa34111847682;p=picodrive.git diff --git a/Pico/carthw/svp/compiler.c b/Pico/carthw/svp/compiler.c index cfaa8a7..2db22b1 100644 --- a/Pico/carthw/svp/compiler.c +++ b/Pico/carthw/svp/compiler.c @@ -1,497 +1,141 @@ -// 187 blocks, 12072 bytes -// 14 IRAM blocks +// SSP1601 to ARM recompiler + +// (c) Copyright 2008, Grazvydas "notaz" Ignotas +// Free for non-commercial use. #include "../../PicoInt.h" #include "compiler.h" -static unsigned int *block_table[0x5090/2]; -static unsigned int *block_table_iram[15][0x800/2]; -static unsigned int *tcache_ptr = NULL; +#define u32 unsigned int + +static u32 *tcache_ptr = NULL; static int nblocks = 0; -static int iram_context = 0; +static int n_in_ops = 0; -#ifndef ARM -#define DUMP_BLOCK 0x3516 -unsigned int tcache[512*1024]; -void regfile_load(void){} -void regfile_store(void){} -#endif +extern ssp1601_t *ssp; + +#define rPC ssp->gr[SSP_PC].h +#define rPMC ssp->gr[SSP_PMC] -#define EMBED_INTERPRETER -#define ssp1601_reset ssp1601_reset_local -#define ssp1601_run ssp1601_run_local +#define SSP_FLAG_Z (1<<0xd) +#define SSP_FLAG_N (1<<0xf) -#define GET_PC() rPC -#define GET_PPC_OFFS() (GET_PC()*2 - 2) -#define SET_PC(d) { rPC = d; } /* must return to dispatcher after this */ -//#define GET_PC() (PC - (unsigned short *)svp->iram_rom) -//#define GET_PPC_OFFS() ((unsigned int)PC - (unsigned int)svp->iram_rom - 2) -//#define SET_PC(d) PC = (unsigned short *)svp->iram_rom + d +#ifndef ARM +#define DUMP_BLOCK 0x0c9a +u32 *ssp_block_table[0x5090/2]; +u32 *ssp_block_table_iram[15][0x800/2]; +u32 tcache[SSP_TCACHE_SIZE/4]; +void ssp_drc_next(void){} +void ssp_drc_next_patch(void){} +void ssp_drc_end(void){} +#endif -#include "ssp16.c" #include "gen_arm.c" // ----------------------------------------------------- -// ld d, s -static void op00(unsigned int op, unsigned int imm) +static int get_inc(int mode) { - unsigned int tmpv; - PC = ((unsigned short *)(void *)&op) + 1; /* FIXME: needed for interpreter */ - if (op == 0) return; // nop - if (op == ((SSP_A<<4)|SSP_P)) { // A <- P - // not sure. MAME claims that only hi word is transfered. - read_P(); // update P - rA32 = rP.v; + int inc = (mode >> 11) & 7; + if (inc != 0) { + if (inc != 7) inc--; + inc = 1 << inc; // 0 1 2 4 8 16 32 128 + if (mode & 0x8000) inc = -inc; // decrement mode } - else - { - tmpv = REG_READ(op & 0x0f); - REG_WRITE((op & 0xf0) >> 4, tmpv); - } -} - -// ld d, (ri) -static void op01(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = ptr1_read(op); REG_WRITE((op & 0xf0) >> 4, tmpv); -} - -// ld (ri), s -static void op02(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = REG_READ((op & 0xf0) >> 4); ptr1_write(op, tmpv); -} - -// ldi d, imm -static void op04(unsigned int op, unsigned int imm) -{ - REG_WRITE((op & 0xf0) >> 4, imm); -} - -// ld d, ((ri)) -static void op05(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = ptr2_read(op); REG_WRITE((op & 0xf0) >> 4, tmpv); -} - -// ldi (ri), imm -static void op06(unsigned int op, unsigned int imm) -{ - ptr1_write(op, imm); -} - -// ld adr, a -static void op07(unsigned int op, unsigned int imm) -{ - ssp->RAM[op & 0x1ff] = rA; -} - -// ld d, ri -static void op09(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = rIJ[(op&3)|((op>>6)&4)]; REG_WRITE((op & 0xf0) >> 4, tmpv); + return inc; } -// ld ri, s -static void op0a(unsigned int op, unsigned int imm) +u32 ssp_pm_read(int reg) { - rIJ[(op&3)|((op>>6)&4)] = REG_READ((op & 0xf0) >> 4); -} - -// ldi ri, simm (also op0d op0e op0f) -static void op0c(unsigned int op, unsigned int imm) -{ - rIJ[(op>>8)&7] = op; -} + u32 d = 0, mode; -// call cond, addr -static void op24(unsigned int op, unsigned int imm) -{ - int cond = 0; - do { - COND_CHECK - if (cond) { int new_PC = imm; write_STACK(GET_PC()); SET_PC(new_PC); } + if (ssp->emu_status & SSP_PMC_SET) + { + ssp->pmac_read[reg] = rPMC.v; + ssp->emu_status &= ~SSP_PMC_SET; + return 0; } - while (0); -} -// ld d, (a) -static void op25(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = ((unsigned short *)svp->iram_rom)[rA]; REG_WRITE((op & 0xf0) >> 4, tmpv); -} + // just in case + ssp->emu_status &= ~SSP_PMC_HAVE_ADDR; -// bra cond, addr -static void op26(unsigned int op, unsigned int imm) -{ - do + mode = ssp->pmac_read[reg]>>16; + if ((mode & 0xfff0) == 0x0800) // ROM { - int cond = 0; - COND_CHECK - if (cond) SET_PC(imm); + d = ((unsigned short *)Pico.rom)[ssp->pmac_read[reg]&0xfffff]; + ssp->pmac_read[reg] += 1; } - while (0); -} - -// mod cond, op -static void op48(unsigned int op, unsigned int imm) -{ - do + else if ((mode & 0x47ff) == 0x0018) // DRAM { - int cond = 0; - COND_CHECK - if (cond) { - switch (op & 7) { - case 2: rA32 = (signed int)rA32 >> 1; break; // shr (arithmetic) - case 3: rA32 <<= 1; break; // shl - case 6: rA32 = -(signed int)rA32; break; // neg - case 7: if ((int)rA32 < 0) rA32 = -(signed int)rA32; break; // abs - default: elprintf(EL_SVP|EL_ANOMALY, "ssp FIXME: unhandled mod %i @ %04x", - op&7, GET_PPC_OFFS()); - } - UPD_ACC_ZN // ? - } + unsigned short *dram = (unsigned short *)svp->dram; + int inc = get_inc(mode); + d = dram[ssp->pmac_read[reg]&0xffff]; + ssp->pmac_read[reg] += inc; } - while(0); -} -// mpys? -static void op1b(unsigned int op, unsigned int imm) -{ - read_P(); // update P - rA32 -= rP.v; // maybe only upper word? - UPD_ACC_ZN // there checking flags after this - rX = ptr1_read_(op&3, 0, (op<<1)&0x18); // ri (maybe rj?) - rY = ptr1_read_((op>>4)&3, 4, (op>>3)&0x18); // rj -} + // PMC value corresponds to last PMR accessed + rPMC.v = ssp->pmac_read[reg]; -// mpya (rj), (ri), b -static void op4b(unsigned int op, unsigned int imm) -{ - read_P(); // update P - rA32 += rP.v; // confirmed to be 32bit - UPD_ACC_ZN // ? - rX = ptr1_read_(op&3, 0, (op<<1)&0x18); // ri (maybe rj?) - rY = ptr1_read_((op>>4)&3, 4, (op>>3)&0x18); // rj + return d; } -// mld (rj), (ri), b -static void op5b(unsigned int op, unsigned int imm) -{ - rA32 = 0; - rST &= 0x0fff; // ? - rX = ptr1_read_(op&3, 0, (op<<1)&0x18); // ri (maybe rj?) - rY = ptr1_read_((op>>4)&3, 4, (op>>3)&0x18); // rj +#define overwrite_write(dst, d) \ +{ \ + if (d & 0xf000) { dst &= ~0xf000; dst |= d & 0xf000; } \ + if (d & 0x0f00) { dst &= ~0x0f00; dst |= d & 0x0f00; } \ + if (d & 0x00f0) { dst &= ~0x00f0; dst |= d & 0x00f0; } \ + if (d & 0x000f) { dst &= ~0x000f; dst |= d & 0x000f; } \ } -// OP a, s -static void op10(unsigned int op, unsigned int imm) +void ssp_pm_write(u32 d, int reg) { - do - { - unsigned int tmpv; - OP_CHECK32(OP_SUBA32); tmpv = REG_READ(op & 0x0f); OP_SUBA(tmpv); - } - while(0); -} + unsigned short *dram; + int mode, addr; -static void op30(unsigned int op, unsigned int imm) -{ - do + if (ssp->emu_status & SSP_PMC_SET) { - unsigned int tmpv; - OP_CHECK32(OP_CMPA32); tmpv = REG_READ(op & 0x0f); OP_CMPA(tmpv); + ssp->pmac_write[reg] = rPMC.v; + ssp->emu_status &= ~SSP_PMC_SET; + return; } - while(0); -} -static void op40(unsigned int op, unsigned int imm) -{ - do - { - unsigned int tmpv; - OP_CHECK32(OP_ADDA32); tmpv = REG_READ(op & 0x0f); OP_ADDA(tmpv); - } - while(0); -} + // just in case + ssp->emu_status &= ~SSP_PMC_HAVE_ADDR; -static void op50(unsigned int op, unsigned int imm) -{ - do + dram = (unsigned short *)svp->dram; + mode = ssp->pmac_write[reg]>>16; + addr = ssp->pmac_write[reg]&0xffff; + if ((mode & 0x43ff) == 0x0018) // DRAM { - unsigned int tmpv; - OP_CHECK32(OP_ANDA32); tmpv = REG_READ(op & 0x0f); OP_ANDA(tmpv); + int inc = get_inc(mode); + if (mode & 0x0400) { + overwrite_write(dram[addr], d); + } else dram[addr] = d; + ssp->pmac_write[reg] += inc; } - while(0); -} - -static void op60(unsigned int op, unsigned int imm) -{ - do + else if ((mode & 0xfbff) == 0x4018) // DRAM, cell inc { - unsigned int tmpv; - OP_CHECK32(OP_ORA32 ); tmpv = REG_READ(op & 0x0f); OP_ORA (tmpv); + if (mode & 0x0400) { + overwrite_write(dram[addr], d); + } else dram[addr] = d; + ssp->pmac_write[reg] += (addr&1) ? 0x1f : 1; } - while(0); -} - -static void op70(unsigned int op, unsigned int imm) -{ - do + else if ((mode & 0x47ff) == 0x001c) // IRAM { - unsigned int tmpv; - OP_CHECK32(OP_EORA32); tmpv = REG_READ(op & 0x0f); OP_EORA(tmpv); + int inc = get_inc(mode); + ((unsigned short *)svp->iram_rom)[addr&0x3ff] = d; + ssp->pmac_write[reg] += inc; + ssp->drc.iram_dirty = 1; } - while(0); -} - -// OP a, (ri) -static void op11(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = ptr1_read(op); OP_SUBA(tmpv); -} - -static void op31(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = ptr1_read(op); OP_CMPA(tmpv); -} - -static void op41(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = ptr1_read(op); OP_ADDA(tmpv); -} - -static void op51(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = ptr1_read(op); OP_ANDA(tmpv); -} - -static void op61(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = ptr1_read(op); OP_ORA (tmpv); -} - -static void op71(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = ptr1_read(op); OP_EORA(tmpv); -} - -// OP a, adr -static void op03(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = ssp->RAM[op & 0x1ff]; OP_LDA (tmpv); -} - -static void op13(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = ssp->RAM[op & 0x1ff]; OP_SUBA(tmpv); -} - -static void op33(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = ssp->RAM[op & 0x1ff]; OP_CMPA(tmpv); -} - -static void op43(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = ssp->RAM[op & 0x1ff]; OP_ADDA(tmpv); -} - -static void op53(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = ssp->RAM[op & 0x1ff]; OP_ANDA(tmpv); -} - -static void op63(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = ssp->RAM[op & 0x1ff]; OP_ORA (tmpv); -} - -static void op73(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = ssp->RAM[op & 0x1ff]; OP_EORA(tmpv); -} - -// OP a, imm -static void op14(unsigned int op, unsigned int imm) -{ - OP_SUBA(imm); -} - -static void op34(unsigned int op, unsigned int imm) -{ - OP_CMPA(imm); -} - -static void op44(unsigned int op, unsigned int imm) -{ - OP_ADDA(imm); -} - -static void op54(unsigned int op, unsigned int imm) -{ - OP_ANDA(imm); -} - -static void op64(unsigned int op, unsigned int imm) -{ - OP_ORA (imm); -} - -static void op74(unsigned int op, unsigned int imm) -{ - OP_EORA(imm); -} -// OP a, ((ri)) -static void op15(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = ptr2_read(op); OP_SUBA(tmpv); -} - -static void op35(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = ptr2_read(op); OP_CMPA(tmpv); -} - -static void op45(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = ptr2_read(op); OP_ADDA(tmpv); -} - -static void op55(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = ptr2_read(op); OP_ANDA(tmpv); -} - -static void op65(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = ptr2_read(op); OP_ORA (tmpv); -} - -static void op75(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = ptr2_read(op); OP_EORA(tmpv); -} - -// OP a, ri -static void op19(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = rIJ[IJind]; OP_SUBA(tmpv); -} - -static void op39(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = rIJ[IJind]; OP_CMPA(tmpv); -} - -static void op49(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = rIJ[IJind]; OP_ADDA(tmpv); -} - -static void op59(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = rIJ[IJind]; OP_ANDA(tmpv); -} - -static void op69(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = rIJ[IJind]; OP_ORA (tmpv); -} - -static void op79(unsigned int op, unsigned int imm) -{ - unsigned int tmpv; - tmpv = rIJ[IJind]; OP_EORA(tmpv); -} - -// OP simm -static void op1c(unsigned int op, unsigned int imm) -{ - OP_SUBA(op & 0xff); -} - -static void op3c(unsigned int op, unsigned int imm) -{ - OP_CMPA(op & 0xff); -} - -static void op4c(unsigned int op, unsigned int imm) -{ - OP_ADDA(op & 0xff); -} - -static void op5c(unsigned int op, unsigned int imm) -{ - OP_ANDA(op & 0xff); -} - -static void op6c(unsigned int op, unsigned int imm) -{ - OP_ORA (op & 0xff); -} - -static void op7c(unsigned int op, unsigned int imm) -{ - OP_EORA(op & 0xff); + rPMC.v = ssp->pmac_write[reg]; } -typedef void (in_func)(unsigned int op, unsigned int imm); - -static in_func *in_funcs[0x80] = -{ - op00, op01, op02, op03, op04, op05, op06, op07, - NULL, op09, op0a, NULL, op0c, op0c, op0c, op0c, - op10, op11, NULL, op13, op14, op15, NULL, NULL, - NULL, op19, NULL, op1b, op1c, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, op24, op25, op26, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - op30, op31, NULL, op33, op34, op35, NULL, NULL, - NULL, op39, NULL, NULL, op3c, NULL, NULL, NULL, - op40, op41, NULL, op43, op44, op45, NULL, NULL, - op48, op49, NULL, op4b, op4c, NULL, NULL, NULL, - op50, op51, NULL, op53, op54, op55, NULL, NULL, - NULL, op59, NULL, op5b, op5c, NULL, NULL, NULL, - op60, op61, NULL, op63, op64, op65, NULL, NULL, - NULL, op69, NULL, NULL, op6c, NULL, NULL, NULL, - op70, op71, NULL, op73, op74, op75, NULL, NULL, - NULL, op79, NULL, NULL, op7c, NULL, NULL, NULL, -}; // ----------------------------------------------------- +// 14 IRAM blocks static unsigned char iram_context_map[] = { 0, 0, 0, 0, 1, 0, 0, 0, // 04 @@ -504,35 +148,31 @@ static unsigned char iram_context_map[] = 13,14, 0, 0, 0, 0, 0, 0 // 38 39 }; -static int get_iram_context(void) +int ssp_get_iram_context(void) { unsigned char *ir = (unsigned char *)svp->iram_rom; int val1, val = ir[0x083^1] + ir[0x4FA^1] + ir[0x5F7^1] + ir[0x47B^1]; val1 = iram_context_map[(val>>1)&0x3f]; if (val1 == 0) { - printf("val: %02x PC=%04x\n", (val>>1)&0x3f, rPC); + elprintf(EL_ANOMALY, "svp: iram ctx val: %02x PC=%04x\n", (val>>1)&0x3f, rPC); //debug_dump2file(name, svp->iram_rom, 0x800); - exit(1); + //exit(1); } -// elprintf(EL_ANOMALY, "iram_context: %02i", val1); return val1; } // ----------------------------------------------------- -/* -enum { - SSP_GR0, SSP_X, SSP_Y, SSP_A, - SSP_ST, SSP_STACK, SSP_PC, SSP_P, - SSP_PM0, SSP_PM1, SSP_PM2, SSP_XST, - SSP_PM4, SSP_gr13, SSP_PMC, SSP_AL -}; -*/ + /* regs with known values */ static struct { ssp_reg_t gr[8]; unsigned char r[8]; + unsigned int pmac_read[5]; + unsigned int pmac_write[5]; + ssp_reg_t pmc; + unsigned int emu_status; } known_regs; #define KRREG_X (1 << SSP_X) @@ -545,12 +185,24 @@ static struct #define KRREG_PR0 (1 << 8) #define KRREG_PR4 (1 << 12) #define KRREG_AL (1 << 16) +#define KRREG_PMCM (1 << 18) /* only mode word of PMC */ +#define KRREG_PMC (1 << 19) +#define KRREG_PM0R (1 << 20) +#define KRREG_PM1R (1 << 21) +#define KRREG_PM2R (1 << 22) +#define KRREG_PM3R (1 << 23) +#define KRREG_PM4R (1 << 24) +#define KRREG_PM0W (1 << 25) +#define KRREG_PM1W (1 << 26) +#define KRREG_PM2W (1 << 27) +#define KRREG_PM3W (1 << 28) +#define KRREG_PM4W (1 << 29) /* bitfield of known register values */ static u32 known_regb = 0; /* known vals, which need to be flushed - * (only ST, P, r0-r7) + * (only ST, P, r0-r7, PMCx, PMxR, PMxW) * ST means flags are being held in ARM PSR * P means that it needs to be recalculated */ @@ -560,7 +212,7 @@ static u32 dirty_regb = 0; * -1 - unknown * 000000-00ffff - 16bit value * 100000-10ffff - base reg (r7) + 16bit val - * 0r0000 - means reg (low) eq gr[r].h + * 0r0000 - means reg (low) eq gr[r].h, r != AL */ static int hostreg_r[4]; @@ -571,34 +223,44 @@ static void hostreg_clear(void) hostreg_r[i] = -1; } -// TODO -/*static*/ void hostreg_ah_changed(void) +static void hostreg_sspreg_changed(int sspreg) { int i; for (i = 0; i < 4; i++) - if (hostreg_r[i] == (SSP_A<<16)) hostreg_r[i] = -1; + if (hostreg_r[i] == (sspreg<<16)) hostreg_r[i] = -1; } -#define PROGRAM(x) ((unsigned short *)svp->iram_rom)[x] +#define PROGRAM(x) ((unsigned short *)svp->iram_rom)[x] +#define PROGRAM_P(x) ((unsigned short *)svp->iram_rom + (x)) + +void tr_unhandled(void) +{ + //FILE *f = fopen("tcache.bin", "wb"); + //fwrite(tcache, 1, (tcache_ptr - tcache)*4, f); + //fclose(f); + elprintf(EL_ANOMALY, "unhandled @ %04x\n", known_regs.gr[SSP_PC].h<<1); + //exit(1); +} -/* update P, if needed. Trashes r1 */ +/* update P, if needed. Trashes r0 */ static void tr_flush_dirty_P(void) { // TODO: const regs if (!(dirty_regb & KRREG_P)) return; EOP_MOV_REG_ASR(10, 4, 16); // mov r10, r4, asr #16 - EOP_MOV_REG_LSL( 1, 4, 16); // mov r1, r4, lsl #16 - EOP_MOV_REG_ASR( 1, 1, 15); // mov r1, r1, asr #15 - EOP_MUL(10, 1, 10); // mul r10, r1, r10 + EOP_MOV_REG_LSL( 0, 4, 16); // mov r0, r4, lsl #16 + EOP_MOV_REG_ASR( 0, 0, 15); // mov r0, r0, asr #15 + EOP_MUL(10, 0, 10); // mul r10, r0, r10 dirty_regb &= ~KRREG_P; + hostreg_r[0] = -1; } /* write dirty pr to host reg. Nothing is trashed */ static void tr_flush_dirty_pr(int r) { int ror = 0, reg; - + if (!(dirty_regb & (1 << (r+8)))) return; switch (r&3) { @@ -618,6 +280,14 @@ static void tr_flush_dirty_prs(void) { int i, ror = 0, reg; int dirty = dirty_regb >> 8; + if ((dirty&7) == 7) { + emit_mov_const(A_COND_AL, 8, known_regs.r[0]|(known_regs.r[1]<<8)|(known_regs.r[2]<<16)); + dirty &= ~7; + } + if ((dirty&0x70) == 0x70) { + emit_mov_const(A_COND_AL, 9, known_regs.r[4]|(known_regs.r[5]<<8)|(known_regs.r[6]<<16)); + dirty &= ~0x70; + } /* r0-r7 */ for (i = 0; dirty && i < 8; i++, dirty >>= 1) { @@ -642,15 +312,32 @@ static void tr_release_pr(int r) known_regb &= ~(1 << (r+8)); } -/* fush ARM PSR to r6. Trashes r0 */ +/* fush ARM PSR to r6. Trashes r1 */ static void tr_flush_dirty_ST(void) { if (!(dirty_regb & KRREG_ST)) return; EOP_BIC_IMM(6,6,0,0x0f); - EOP_MRS(0); - EOP_ORR_REG_LSR(6,6,0,28); + EOP_MRS(1); + EOP_ORR_REG_LSR(6,6,1,28); dirty_regb &= ~KRREG_ST; - hostreg_r[0] = -1; + hostreg_r[1] = -1; +} + +/* inverse of above. Trashes r1 */ +static void tr_make_dirty_ST(void) +{ + if (dirty_regb & KRREG_ST) return; + if (known_regb & KRREG_ST) { + int flags = 0; + if (known_regs.gr[SSP_ST].h & SSP_FLAG_N) flags |= 8; + if (known_regs.gr[SSP_ST].h & SSP_FLAG_Z) flags |= 4; + EOP_MSR_IMM(4/2, flags); + } else { + EOP_MOV_REG_LSL(1, 6, 28); + EOP_MSR_REG(1); + hostreg_r[1] = -1; + } + dirty_regb |= KRREG_ST; } /* load 16bit val into host reg r0-r3. Nothing is trashed */ @@ -668,7 +355,44 @@ static void tr_mov16_cond(int cond, int r, int val) hostreg_r[r] = -1; } -/* read bank word to r0. Thrashes r1. */ +/* trashes r1 */ +static void tr_flush_dirty_pmcrs(void) +{ + u32 i, val = (u32)-1; + if (!(dirty_regb & 0x3ff80000)) return; + + if (dirty_regb & KRREG_PMC) { + val = known_regs.pmc.v; + emit_mov_const(A_COND_AL, 1, val); + EOP_STR_IMM(1,7,0x400+SSP_PMC*4); + + if (known_regs.emu_status & (SSP_PMC_SET|SSP_PMC_HAVE_ADDR)) { + elprintf(EL_ANOMALY, "!! SSP_PMC_SET|SSP_PMC_HAVE_ADDR set on flush\n"); + tr_unhandled(); + } + } + for (i = 0; i < 5; i++) + { + if (dirty_regb & (1 << (20+i))) { + if (val != known_regs.pmac_read[i]) { + val = known_regs.pmac_read[i]; + emit_mov_const(A_COND_AL, 1, val); + } + EOP_STR_IMM(1,7,0x454+i*4); // pmac_read + } + if (dirty_regb & (1 << (25+i))) { + if (val != known_regs.pmac_write[i]) { + val = known_regs.pmac_write[i]; + emit_mov_const(A_COND_AL, 1, val); + } + EOP_STR_IMM(1,7,0x46c+i*4); // pmac_write + } + } + dirty_regb &= ~0x3ff80000; + hostreg_r[1] = -1; +} + +/* read bank word to r0 (upper bits zero). Thrashes r1. */ static void tr_bank_read(int addr) /* word addr 0-0x1ff */ { int breg = 7; @@ -715,9 +439,16 @@ static void tr_ptrr_mod(int r, int mod, int need_modulo, int count) { int reg = (r < 4) ? 8 : 9; tr_release_pr(r); - tr_flush_dirty_ST(); - EOP_C_DOP_IMM(A_COND_AL,A_OP_AND,1,6,1,0,0x70); // ands r1, r6, #0x70 - EOP_C_DOP_IMM(A_COND_EQ,A_OP_MOV,0,0,1,0,0x80); // moveq r1, #0x80 + if (dirty_regb & KRREG_ST) { + // avoid flushing ARM flags + EOP_AND_IMM(1, 6, 0, 0x70); + EOP_SUB_IMM(1, 1, 0, 0x10); + EOP_AND_IMM(1, 1, 0, 0x70); + EOP_ADD_IMM(1, 1, 0, 0x10); + } else { + EOP_C_DOP_IMM(A_COND_AL,A_OP_AND,1,6,1,0,0x70); // ands r1, r6, #0x70 + EOP_C_DOP_IMM(A_COND_EQ,A_OP_MOV,0,0,1,0,0x80); // moveq r1, #0x80 + } EOP_MOV_REG_LSR(1, 1, 4); // mov r1, r1, lsr #4 EOP_RSB_IMM(2, 1, 0, 8); // rsb r1, r1, #8 EOP_MOV_IMM(3, 8/2, count); // mov r3, #0x01000000 @@ -751,7 +482,7 @@ static void tr_ptrr_mod(int r, int mod, int need_modulo, int count) /* handle writes r0 to (rX). Trashes r1. * fortunately we can ignore modulo increment modes for writes. */ -static void tr_rX_write1(int op) +static void tr_rX_write(int op) { if ((op&3) == 3) { @@ -788,7 +519,7 @@ static void tr_rX_read(int r, int mod) else { if (known_regb & (1 << (r + 8))) { - tr_bank_write(((r << 6) & 0x100) | known_regs.r[r]); + tr_bank_read(((r << 6) & 0x100) | known_regs.r[r]); } else { int reg = (r < 4) ? 8 : 9; int ror = ((4 - (r&3))*8) & 0x1f; @@ -798,17 +529,113 @@ static void tr_rX_read(int r, int mod) if (r&3) EOP_ADD_REG_LSR(1,7,1, (r&3)*8-1); // add r1, r7, r1, lsr #lsr else EOP_ADD_REG_LSL(1,7,1,1); EOP_LDRH_SIMPLE(0,1); // ldrh r0, [r1] - hostreg_r[1] = -1; + hostreg_r[0] = hostreg_r[1] = -1; } tr_ptrr_mod(r, mod, 1, 1); } } +/* read ((rX)) to r0. Trashes r1,r2. */ +static void tr_rX_read2(int op) +{ + int r = (op&3) | ((op>>6)&4); // src + + if ((r&3) == 3) { + tr_bank_read((op&0x100) | ((op>>2)&3)); + } else if (known_regb & (1 << (r+8))) { + tr_bank_read((op&0x100) | known_regs.r[r]); + } else { + int reg = (r < 4) ? 8 : 9; + int ror = ((4 - (r&3))*8) & 0x1f; + EOP_AND_IMM(1,reg,ror/2,0xff); // and r1, r{7,8}, + if (r >= 4) + EOP_ORR_IMM(1,1,((ror-8)&0x1f)/2,1); // orr r1, r1, 1<>2)&3)); + } else if (known_regb & (1 << (r+8))) { + tr_bank_write((op&0x100) | known_regs.r[r]); + } else { + EOP_STRH_SIMPLE(0,1); // strh r0, [r1] + hostreg_r[1] = -1; + } + EOP_LDRH_SIMPLE(0,2); // ldrh r0, [r2] + hostreg_r[0] = hostreg_r[2] = -1; +} + +// check if AL is going to be used later in block +static int tr_predict_al_need(void) +{ + int tmpv, tmpv2, op, pc = known_regs.gr[SSP_PC].h; + + while (1) + { + op = PROGRAM(pc); + switch (op >> 9) + { + // ld d, s + case 0x00: + tmpv2 = (op >> 4) & 0xf; // dst + tmpv = op & 0xf; // src + if ((tmpv2 == SSP_A && tmpv == SSP_P) || tmpv2 == SSP_AL) // ld A, P; ld AL, * + return 0; + break; + + // ld (ri), s + case 0x02: + // ld ri, s + case 0x0a: + // OP a, s + case 0x10: case 0x30: case 0x40: case 0x60: case 0x70: + tmpv = op & 0xf; // src + if (tmpv == SSP_AL) // OP *, AL + return 1; + break; + + case 0x04: + case 0x06: + case 0x14: + case 0x34: + case 0x44: + case 0x64: + case 0x74: pc++; break; + + // call cond, addr + case 0x24: + // bra cond, addr + case 0x26: + // mod cond, op + case 0x48: + // mpys? + case 0x1b: + // mpya (rj), (ri), b + case 0x4b: return 1; + + // mld (rj), (ri), b + case 0x5b: return 0; // cleared anyway + + // and A, * + case 0x50: + tmpv = op & 0xf; // src + if (tmpv == SSP_AL) return 1; + case 0x51: case 0x53: case 0x54: case 0x55: case 0x59: case 0x5c: + return 0; + } + pc++; + } +} + /* get ARM cond which would mean that SSP cond is satisfied. No trash. */ static int tr_cond_check(int op) { - int f = op & 0x100; + int f = (op & 0x100) >> 8; switch (op&0xf0) { case 0x00: return A_COND_AL; /* always true */ case 0x50: /* Z matches f(?) bit */ @@ -820,8 +647,8 @@ static int tr_cond_check(int op) EOP_TST_IMM(6, 0, 8); return f ? A_COND_NE : A_COND_EQ; default: - printf("unimplemented cond?\n"); - exit(1); + elprintf(EL_ANOMALY, "unimplemented cond?\n"); + tr_unhandled(); return 0; } } @@ -829,18 +656,33 @@ static int tr_cond_check(int op) static int tr_neg_cond(int cond) { switch (cond) { - case A_COND_AL: printf("neg for AL?\n"); exit(1); + case A_COND_AL: elprintf(EL_ANOMALY, "neg for AL?\n"); exit(1); case A_COND_EQ: return A_COND_NE; case A_COND_NE: return A_COND_EQ; case A_COND_MI: return A_COND_PL; case A_COND_PL: return A_COND_MI; - default: printf("bad cond for neg\n"); exit(1); + default: elprintf(EL_ANOMALY, "bad cond for neg\n"); exit(1); } return 0; } -// SSP_GR0, SSP_X, SSP_Y, SSP_A, -// SSP_ST, SSP_STACK, SSP_PC, SSP_P, +static int tr_aop_ssp2arm(int op) +{ + switch (op) { + case 1: return A_OP_SUB; + case 3: return A_OP_CMP; + case 4: return A_OP_ADD; + case 5: return A_OP_AND; + case 6: return A_OP_ORR; + case 7: return A_OP_EOR; + } + + tr_unhandled(); + return 0; +} + +// ----------------------------------------------------- + //@ r4: XXYY //@ r5: A //@ r6: STACK and emu flags @@ -848,12 +690,12 @@ static int tr_neg_cond(int cond) //@ r10: P // read general reg to r0. Trashes r1 -static void tr_GR0_to_r0(void) +static void tr_GR0_to_r0(int op) { tr_mov16(0, 0xffff); } -static void tr_X_to_r0(void) +static void tr_X_to_r0(int op) { if (hostreg_r[0] != (SSP_X<<16)) { EOP_MOV_REG_LSR(0, 4, 16); // mov r0, r4, lsr #16 @@ -861,16 +703,15 @@ static void tr_X_to_r0(void) } } -static void tr_Y_to_r0(void) +static void tr_Y_to_r0(int op) { - // TODO.. if (hostreg_r[0] != (SSP_Y<<16)) { EOP_MOV_REG_SIMPLE(0, 4); // mov r0, r4 hostreg_r[0] = SSP_Y<<16; } } -static void tr_A_to_r0(void) +static void tr_A_to_r0(int op) { if (hostreg_r[0] != (SSP_A<<16)) { EOP_MOV_REG_LSR(0, 5, 16); // mov r0, r5, lsr #16 @ AH @@ -878,7 +719,7 @@ static void tr_A_to_r0(void) } } -static void tr_ST_to_r0(void) +static void tr_ST_to_r0(int op) { // VR doesn't need much accuracy here.. EOP_MOV_REG_LSR(0, 6, 4); // mov r0, r6, lsr #4 @@ -886,7 +727,7 @@ static void tr_ST_to_r0(void) hostreg_r[0] = -1; } -static void tr_STACK_to_r0(void) +static void tr_STACK_to_r0(int op) { // 448 EOP_SUB_IMM(6, 6, 8/2, 0x20); // sub r6, r6, #1<<29 @@ -897,21 +738,161 @@ static void tr_STACK_to_r0(void) hostreg_r[0] = hostreg_r[1] = -1; } -static void tr_PC_to_r0(void) +static void tr_PC_to_r0(int op) { tr_mov16(0, known_regs.gr[SSP_PC].h); } -static void tr_P_to_r0(void) +static void tr_P_to_r0(int op) { tr_flush_dirty_P(); EOP_MOV_REG_LSR(0, 10, 16); // mov r0, r10, lsr #16 hostreg_r[0] = -1; } -typedef void (tr_read_func)(void); +static void tr_AL_to_r0(int op) +{ + if (op == 0x000f) { + if (known_regb & KRREG_PMC) { + known_regs.emu_status &= ~(SSP_PMC_SET|SSP_PMC_HAVE_ADDR); + } else { + EOP_LDR_IMM(0,7,0x484); // ldr r1, [r7, #0x484] // emu_status + EOP_BIC_IMM(0,0,0,SSP_PMC_SET|SSP_PMC_HAVE_ADDR); + EOP_STR_IMM(0,7,0x484); + } + } -static tr_read_func *tr_read_funcs[8] = + if (hostreg_r[0] != (SSP_AL<<16)) { + EOP_MOV_REG_SIMPLE(0, 5); // mov r0, r5 + hostreg_r[0] = SSP_AL<<16; + } +} + +static void tr_PMX_to_r0(int reg) +{ + if ((known_regb & KRREG_PMC) && (known_regs.emu_status & SSP_PMC_SET)) + { + known_regs.pmac_read[reg] = known_regs.pmc.v; + known_regs.emu_status &= ~SSP_PMC_SET; + known_regb |= 1 << (20+reg); + dirty_regb |= 1 << (20+reg); + return; + } + + if ((known_regb & KRREG_PMC) && (known_regb & (1 << (20+reg)))) + { + u32 pmcv = known_regs.pmac_read[reg]; + int mode = pmcv>>16; + known_regs.emu_status &= ~SSP_PMC_HAVE_ADDR; + + if ((mode & 0xfff0) == 0x0800) + { + EOP_LDR_IMM(1,7,0x488); // rom_ptr + emit_mov_const(A_COND_AL, 0, (pmcv&0xfffff)<<1); + EOP_LDRH_REG(0,1,0); // ldrh r0, [r1, r0] + known_regs.pmac_read[reg] += 1; + } + else if ((mode & 0x47ff) == 0x0018) // DRAM + { + int inc = get_inc(mode); + EOP_LDR_IMM(1,7,0x490); // dram_ptr + emit_mov_const(A_COND_AL, 0, (pmcv&0xffff)<<1); + EOP_LDRH_REG(0,1,0); // ldrh r0, [r1, r0] + if (reg == 4 && (pmcv == 0x187f03 || pmcv == 0x187f04)) // wait loop detection + { + int flag = (pmcv == 0x187f03) ? SSP_WAIT_30FE06 : SSP_WAIT_30FE08; + tr_flush_dirty_ST(); + EOP_LDR_IMM(1,7,0x484); // ldr r1, [r7, #0x484] // emu_status + EOP_TST_REG_SIMPLE(0,0); + EOP_C_DOP_IMM(A_COND_EQ,A_OP_SUB,0,11,11,22/2,1); // subeq r11, r11, #1024 + EOP_C_DOP_IMM(A_COND_EQ,A_OP_ORR,0, 1, 1,24/2,flag>>8); // orreq r1, r1, #SSP_WAIT_30FE08 + EOP_STR_IMM(1,7,0x484); // str r1, [r7, #0x484] // emu_status + } + known_regs.pmac_read[reg] += inc; + } + else + { + tr_unhandled(); + } + known_regs.pmc.v = known_regs.pmac_read[reg]; + //known_regb |= KRREG_PMC; + dirty_regb |= KRREG_PMC; + dirty_regb |= 1 << (20+reg); + hostreg_r[0] = hostreg_r[1] = -1; + return; + } + + known_regb &= ~KRREG_PMC; + dirty_regb &= ~KRREG_PMC; + known_regb &= ~(1 << (20+reg)); + dirty_regb &= ~(1 << (20+reg)); + + // call the C code to handle this + tr_flush_dirty_ST(); + //tr_flush_dirty_pmcrs(); + tr_mov16(0, reg); + emit_call(A_COND_AL, ssp_pm_read); + hostreg_clear(); +} + +static void tr_PM0_to_r0(int op) +{ + tr_PMX_to_r0(0); +} + +static void tr_PM1_to_r0(int op) +{ + tr_PMX_to_r0(1); +} + +static void tr_PM2_to_r0(int op) +{ + tr_PMX_to_r0(2); +} + +static void tr_XST_to_r0(int op) +{ + EOP_ADD_IMM(0, 7, 24/2, 4); // add r0, r7, #0x400 + EOP_LDRH_IMM(0, 0, SSP_XST*4+2); +} + +static void tr_PM4_to_r0(int op) +{ + tr_PMX_to_r0(4); +} + +static void tr_PMC_to_r0(int op) +{ + if (known_regb & KRREG_PMC) + { + if (known_regs.emu_status & SSP_PMC_HAVE_ADDR) { + known_regs.emu_status |= SSP_PMC_SET; + known_regs.emu_status &= ~SSP_PMC_HAVE_ADDR; + // do nothing - this is handled elsewhere + } else { + tr_mov16(0, known_regs.pmc.l); + known_regs.emu_status |= SSP_PMC_HAVE_ADDR; + } + } + else + { + EOP_LDR_IMM(1,7,0x484); // ldr r1, [r7, #0x484] // emu_status + tr_flush_dirty_ST(); + if (op != 0x000e) + EOP_LDR_IMM(0, 7, 0x400+SSP_PMC*4); + EOP_TST_IMM(1, 0, SSP_PMC_HAVE_ADDR); + EOP_C_DOP_IMM(A_COND_EQ,A_OP_ORR,0, 1, 1, 0, SSP_PMC_HAVE_ADDR); // orreq r1, r1, #.. + EOP_C_DOP_IMM(A_COND_NE,A_OP_BIC,0, 1, 1, 0, SSP_PMC_HAVE_ADDR); // bicne r1, r1, #.. + EOP_C_DOP_IMM(A_COND_NE,A_OP_ORR,0, 1, 1, 0, SSP_PMC_SET); // orrne r1, r1, #.. + EOP_STR_IMM(1,7,0x484); + hostreg_r[0] = hostreg_r[1] = -1; + } +} + + +typedef void (tr_read_func)(int op); + +static tr_read_func *tr_read_funcs[16] = { tr_GR0_to_r0, tr_X_to_r0, @@ -920,58 +901,78 @@ static tr_read_func *tr_read_funcs[8] = tr_ST_to_r0, tr_STACK_to_r0, tr_PC_to_r0, - tr_P_to_r0 + tr_P_to_r0, + tr_PM0_to_r0, + tr_PM1_to_r0, + tr_PM2_to_r0, + tr_XST_to_r0, + tr_PM4_to_r0, + (tr_read_func *)tr_unhandled, + tr_PMC_to_r0, + tr_AL_to_r0 }; // write r0 to general reg handlers. Trashes r1 -static void tr_unhandled(void) -{ - printf("unhandled @ %04x\n", known_regs.gr[SSP_PC].h<<1); - exit(1); +#define TR_WRITE_R0_TO_REG(reg) \ +{ \ + hostreg_sspreg_changed(reg); \ + hostreg_r[0] = (reg)<<16; \ + if (const_val != -1) { \ + known_regs.gr[reg].h = const_val; \ + known_regb |= 1 << (reg); \ + } else { \ + known_regb &= ~(1 << (reg)); \ + } \ } -static void tr_r0_to_GR0(void) +static void tr_r0_to_GR0(int const_val) { // do nothing } -static void tr_r0_to_X(void) +static void tr_r0_to_X(int const_val) { EOP_MOV_REG_LSL(4, 4, 16); // mov r4, r4, lsl #16 EOP_MOV_REG_LSR(4, 4, 16); // mov r4, r4, lsr #16 EOP_ORR_REG_LSL(4, 4, 0, 16); // orr r4, r4, r0, lsl #16 - dirty_regb |= KRREG_P; // touching X or Y makes P dirty. - hostreg_r[0] = SSP_X<<16; + dirty_regb |= KRREG_P; // touching X or Y makes P dirty. + TR_WRITE_R0_TO_REG(SSP_X); } -static void tr_r0_to_Y(void) +static void tr_r0_to_Y(int const_val) { EOP_MOV_REG_LSR(4, 4, 16); // mov r4, r4, lsr #16 EOP_ORR_REG_LSL(4, 4, 0, 16); // orr r4, r4, r0, lsl #16 EOP_MOV_REG_ROR(4, 4, 16); // mov r4, r4, ror #16 dirty_regb |= KRREG_P; - hostreg_r[0] = SSP_Y<<16; + TR_WRITE_R0_TO_REG(SSP_Y); } -static void tr_r0_to_A(void) +static void tr_r0_to_A(int const_val) { - EOP_MOV_REG_LSL(5, 5, 16); // mov r5, r5, lsl #16 - EOP_MOV_REG_LSR(5, 5, 16); // mov r5, r5, lsr #16 @ AL - EOP_ORR_REG_LSL(5, 5, 0, 16); // orr r5, r5, r0, lsl #16 - hostreg_r[0] = SSP_A<<16; + if (tr_predict_al_need()) { + EOP_MOV_REG_LSL(5, 5, 16); // mov r5, r5, lsl #16 + EOP_MOV_REG_LSR(5, 5, 16); // mov r5, r5, lsr #16 @ AL + EOP_ORR_REG_LSL(5, 5, 0, 16); // orr r5, r5, r0, lsl #16 + } + else + EOP_MOV_REG_LSL(5, 0, 16); + TR_WRITE_R0_TO_REG(SSP_A); } -static void tr_r0_to_ST(void) +static void tr_r0_to_ST(int const_val) { // VR doesn't need much accuracy here.. EOP_AND_IMM(1, 0, 0, 0x67); // and r1, r0, #0x67 EOP_AND_IMM(6, 6, 8/2, 0xe0); // and r6, r6, #7<<29 @ preserve STACK EOP_ORR_REG_LSL(6, 6, 1, 4); // orr r6, r6, r1, lsl #4 + TR_WRITE_R0_TO_REG(SSP_ST); hostreg_r[1] = -1; + dirty_regb &= ~KRREG_ST; } -static void tr_r0_to_STACK(void) +static void tr_r0_to_STACK(int const_val) { // 448 EOP_ADD_IMM(1, 7, 24/2, 0x04); // add r1, r7, 0x400 @@ -982,16 +983,157 @@ static void tr_r0_to_STACK(void) hostreg_r[1] = -1; } -static void tr_r0_to_PC(void) +static void tr_r0_to_PC(int const_val) { +/* + * do nothing - dispatcher will take care of this EOP_MOV_REG_LSL(1, 0, 16); // mov r1, r0, lsl #16 EOP_STR_IMM(1,7,0x400+6*4); // str r1, [r7, #(0x400+6*8)] hostreg_r[1] = -1; +*/ } -typedef void (tr_write_func)(void); +static void tr_r0_to_AL(int const_val) +{ + EOP_MOV_REG_LSR(5, 5, 16); // mov r5, r5, lsr #16 + EOP_ORR_REG_LSL(5, 5, 0, 16); // orr r5, r5, r0, lsl #16 + EOP_MOV_REG_ROR(5, 5, 16); // mov r5, r5, ror #16 + hostreg_sspreg_changed(SSP_AL); + if (const_val != -1) { + known_regs.gr[SSP_A].l = const_val; + known_regb |= 1 << SSP_AL; + } else + known_regb &= ~(1 << SSP_AL); +} -static tr_write_func *tr_write_funcs[8] = +static void tr_r0_to_PMX(int reg) +{ + if ((known_regb & KRREG_PMC) && (known_regs.emu_status & SSP_PMC_SET)) + { + known_regs.pmac_write[reg] = known_regs.pmc.v; + known_regs.emu_status &= ~SSP_PMC_SET; + known_regb |= 1 << (25+reg); + dirty_regb |= 1 << (25+reg); + return; + } + + if ((known_regb & KRREG_PMC) && (known_regb & (1 << (25+reg)))) + { + int mode, addr; + + known_regs.emu_status &= ~SSP_PMC_HAVE_ADDR; + + mode = known_regs.pmac_write[reg]>>16; + addr = known_regs.pmac_write[reg]&0xffff; + if ((mode & 0x43ff) == 0x0018) // DRAM + { + int inc = get_inc(mode); + if (mode & 0x0400) tr_unhandled(); + EOP_LDR_IMM(1,7,0x490); // dram_ptr + emit_mov_const(A_COND_AL, 2, addr<<1); + EOP_STRH_REG(0,1,2); // strh r0, [r1, r2] + known_regs.pmac_write[reg] += inc; + } + else if ((mode & 0xfbff) == 0x4018) // DRAM, cell inc + { + if (mode & 0x0400) tr_unhandled(); + EOP_LDR_IMM(1,7,0x490); // dram_ptr + emit_mov_const(A_COND_AL, 2, addr<<1); + EOP_STRH_REG(0,1,2); // strh r0, [r1, r2] + known_regs.pmac_write[reg] += (addr&1) ? 31 : 1; + } + else if ((mode & 0x47ff) == 0x001c) // IRAM + { + int inc = get_inc(mode); + EOP_LDR_IMM(1,7,0x48c); // iram_ptr + emit_mov_const(A_COND_AL, 2, (addr&0x3ff)<<1); + EOP_STRH_REG(0,1,2); // strh r0, [r1, r2] + EOP_MOV_IMM(1,0,1); + EOP_STR_IMM(1,7,0x494); // iram_dirty + known_regs.pmac_write[reg] += inc; + } + else + tr_unhandled(); + + known_regs.pmc.v = known_regs.pmac_write[reg]; + //known_regb |= KRREG_PMC; + dirty_regb |= KRREG_PMC; + dirty_regb |= 1 << (25+reg); + hostreg_r[1] = hostreg_r[2] = -1; + return; + } + + known_regb &= ~KRREG_PMC; + dirty_regb &= ~KRREG_PMC; + known_regb &= ~(1 << (25+reg)); + dirty_regb &= ~(1 << (25+reg)); + + // call the C code to handle this + tr_flush_dirty_ST(); + //tr_flush_dirty_pmcrs(); + tr_mov16(1, reg); + emit_call(A_COND_AL, ssp_pm_write); + hostreg_clear(); +} + +static void tr_r0_to_PM0(int const_val) +{ + tr_r0_to_PMX(0); +} + +static void tr_r0_to_PM1(int const_val) +{ + tr_r0_to_PMX(1); +} + +static void tr_r0_to_PM2(int const_val) +{ + tr_r0_to_PMX(2); +} + +static void tr_r0_to_PM4(int const_val) +{ + tr_r0_to_PMX(4); +} + +static void tr_r0_to_PMC(int const_val) +{ + if ((known_regb & KRREG_PMC) && const_val != -1) + { + if (known_regs.emu_status & SSP_PMC_HAVE_ADDR) { + known_regs.emu_status |= SSP_PMC_SET; + known_regs.emu_status &= ~SSP_PMC_HAVE_ADDR; + known_regs.pmc.h = const_val; + } else { + known_regs.emu_status |= SSP_PMC_HAVE_ADDR; + known_regs.pmc.l = const_val; + } + } + else + { + tr_flush_dirty_ST(); + if (known_regb & KRREG_PMC) { + emit_mov_const(A_COND_AL, 1, known_regs.pmc.v); + EOP_STR_IMM(1,7,0x400+SSP_PMC*4); + known_regb &= ~KRREG_PMC; + dirty_regb &= ~KRREG_PMC; + } + EOP_LDR_IMM(1,7,0x484); // ldr r1, [r7, #0x484] // emu_status + EOP_ADD_IMM(2,7,24/2,4); // add r2, r7, #0x400 + EOP_TST_IMM(1, 0, SSP_PMC_HAVE_ADDR); + EOP_C_AM3_IMM(A_COND_EQ,1,0,2,0,0,1,SSP_PMC*4); // strxx r0, [r2, #SSP_PMC] + EOP_C_AM3_IMM(A_COND_NE,1,0,2,0,0,1,SSP_PMC*4+2); + EOP_C_DOP_IMM(A_COND_EQ,A_OP_ORR,0, 1, 1, 0, SSP_PMC_HAVE_ADDR); // orreq r1, r1, #.. + EOP_C_DOP_IMM(A_COND_NE,A_OP_BIC,0, 1, 1, 0, SSP_PMC_HAVE_ADDR); // bicne r1, r1, #.. + EOP_C_DOP_IMM(A_COND_NE,A_OP_ORR,0, 1, 1, 0, SSP_PMC_SET); // orrne r1, r1, #.. + EOP_STR_IMM(1,7,0x484); + hostreg_r[1] = hostreg_r[2] = -1; + } +} + +typedef void (tr_write_func)(int const_val); + +static tr_write_func *tr_write_funcs[16] = { tr_r0_to_GR0, tr_r0_to_X, @@ -1000,13 +1142,115 @@ static tr_write_func *tr_write_funcs[8] = tr_r0_to_ST, tr_r0_to_STACK, tr_r0_to_PC, - tr_unhandled + (tr_write_func *)tr_unhandled, + tr_r0_to_PM0, + tr_r0_to_PM1, + tr_r0_to_PM2, + (tr_write_func *)tr_unhandled, + tr_r0_to_PM4, + (tr_write_func *)tr_unhandled, + tr_r0_to_PMC, + tr_r0_to_AL }; +static void tr_mac_load_XY(int op) +{ + tr_rX_read(op&3, (op>>2)&3); // X + EOP_MOV_REG_LSL(4, 0, 16); + tr_rX_read(((op>>4)&3)|4, (op>>6)&3); // Y + EOP_ORR_REG_SIMPLE(4, 0); + dirty_regb |= KRREG_P; + hostreg_sspreg_changed(SSP_X); + hostreg_sspreg_changed(SSP_Y); + known_regb &= ~KRREG_X; + known_regb &= ~KRREG_Y; +} + +// ----------------------------------------------------- + +static int tr_detect_set_pm(unsigned int op, int *pc, int imm) +{ + u32 pmcv, tmpv; + if (!((op&0xfef0) == 0x08e0 && (PROGRAM(*pc)&0xfef0) == 0x08e0)) return 0; + + // programming PMC: + // ldi PMC, imm1 + // ldi PMC, imm2 + (*pc)++; + pmcv = imm | (PROGRAM((*pc)++) << 16); + known_regs.pmc.v = pmcv; + known_regb |= KRREG_PMC; + dirty_regb |= KRREG_PMC; + known_regs.emu_status |= SSP_PMC_SET; + n_in_ops++; + + // check for possible reg programming + tmpv = PROGRAM(*pc); + if ((tmpv & 0xfff8) == 0x08 || (tmpv & 0xff8f) == 0x80) + { + int is_write = (tmpv & 0xff8f) == 0x80; + int reg = is_write ? ((tmpv>>4)&0x7) : (tmpv&0x7); + if (reg > 4) tr_unhandled(); + if ((tmpv & 0x0f) != 0 && (tmpv & 0xf0) != 0) tr_unhandled(); + known_regs.pmac_read[is_write ? reg + 5 : reg] = pmcv; + known_regb |= is_write ? (1 << (reg+25)) : (1 << (reg+20)); + dirty_regb |= is_write ? (1 << (reg+25)) : (1 << (reg+20)); + known_regs.emu_status &= ~SSP_PMC_SET; + (*pc)++; + n_in_ops++; + return 5; + } -static int translate_op(unsigned int op, int *pc, int imm) + tr_unhandled(); + return 4; +} + +static const short pm0_block_seq[] = { 0x0880, 0, 0x0880, 0, 0x0840, 0x60 }; + +static int tr_detect_pm0_block(unsigned int op, int *pc, int imm) +{ + // ldi ST, 0 + // ldi PM0, 0 + // ldi PM0, 0 + // ldi ST, 60h + unsigned short *pp; + if (op != 0x0840 || imm != 0) return 0; + pp = PROGRAM_P(*pc); + if (memcmp(pp, pm0_block_seq, sizeof(pm0_block_seq)) != 0) return 0; + + EOP_AND_IMM(6, 6, 8/2, 0xe0); // and r6, r6, #7<<29 @ preserve STACK + EOP_ORR_IMM(6, 6, 24/2, 6); // orr r6, r6, 0x600 + hostreg_sspreg_changed(SSP_ST); + known_regs.gr[SSP_ST].h = 0x60; + known_regb |= 1 << SSP_ST; + dirty_regb &= ~KRREG_ST; + (*pc) += 3*2; + n_in_ops += 3; + return 4*2; +} + +static int tr_detect_rotate(unsigned int op, int *pc, int imm) { - u32 tmpv, tmpv2; + // @ 3DA2 and 426A + // ld PMC, (r3|00) + // ld (r3|00), PMC + // ld -, AL + if (op != 0x02e3 || PROGRAM(*pc) != 0x04e3 || PROGRAM(*pc + 1) != 0x000f) return 0; + + tr_bank_read(0); + EOP_MOV_REG_LSL(0, 0, 4); + EOP_ORR_REG_LSR(0, 0, 0, 16); + tr_bank_write(0); + (*pc) += 2; + n_in_ops += 2; + return 3; +} + +// ----------------------------------------------------- + +static int translate_op(unsigned int op, int *pc, int imm, int *end_cond, int *jump_pc) +{ + u32 tmpv, tmpv2, tmpv3; int ret = 0; known_regs.gr[SSP_PC].h = *pc; @@ -1017,145 +1261,94 @@ static int translate_op(unsigned int op, int *pc, int imm) if (op == 0) { ret++; break; } // nop tmpv = op & 0xf; // src tmpv2 = (op >> 4) & 0xf; // dst - if (tmpv >= 8 || tmpv2 >= 8) return -1; // TODO if (tmpv2 == SSP_A && tmpv == SSP_P) { // ld A, P tr_flush_dirty_P(); EOP_MOV_REG_SIMPLE(5, 10); + hostreg_sspreg_changed(SSP_A); known_regb &= ~(KRREG_A|KRREG_AL); ret++; break; } - tr_read_funcs[tmpv](); - tr_write_funcs[tmpv2](); - if (known_regb & (1 << tmpv)) { - known_regs.gr[tmpv2].h = known_regs.gr[tmpv].h; - known_regb |= 1 << tmpv2; - } else - known_regb &= ~(1 << tmpv2); + tr_read_funcs[tmpv](op); + tr_write_funcs[tmpv2]((known_regb & (1 << tmpv)) ? known_regs.gr[tmpv].h : -1); + if (tmpv2 == SSP_PC) { + ret |= 0x10000; + *end_cond = -A_COND_AL; + } ret++; break; // ld d, (ri) - // TODO: test case 0x01: { - // tmpv = ptr1_read(op); REG_WRITE((op & 0xf0) >> 4, tmpv); break; int r = (op&3) | ((op>>6)&4); int mod = (op>>2)&3; tmpv = (op >> 4) & 0xf; // dst - if (tmpv >= 8) return -1; // TODO + ret = tr_detect_rotate(op, pc, imm); + if (ret > 0) break; if (tmpv != 0) - tr_rX_read(r, mod); - else tr_ptrr_mod(r, mod, 1, 1); - tr_write_funcs[tmpv](); - known_regb &= ~(1 << tmpv); + tr_rX_read(r, mod); + else { + int cnt = 1; + while (PROGRAM(*pc) == op) { + (*pc)++; cnt++; ret++; + n_in_ops++; + } + tr_ptrr_mod(r, mod, 1, cnt); // skip + } + tr_write_funcs[tmpv](-1); + if (tmpv == SSP_PC) { + ret |= 0x10000; + *end_cond = -A_COND_AL; + } ret++; break; } // ld (ri), s case 0x02: tmpv = (op >> 4) & 0xf; // src - if (tmpv >= 8) return -1; // TODO - tr_read_funcs[tmpv](); - tr_rX_write1(op); + tr_read_funcs[tmpv](op); + tr_rX_write(op); ret++; break; // ld a, adr case 0x03: tr_bank_read(op&0x1ff); - tr_r0_to_A(); - known_regb &= ~KRREG_A; - hostreg_r[0] = SSP_A<<16; + tr_r0_to_A(-1); ret++; break; // ldi d, imm case 0x04: - tmpv = (op & 0xf0) >> 4; - if (tmpv < 8) - { - tr_mov16(0, imm); - tr_write_funcs[tmpv](); - known_regs.gr[tmpv].h = imm; - known_regb |= 1 << tmpv; - ret += 2; break; - } - else if (tmpv == 0xe && (PROGRAM(*pc) >> 9) == 4) - { - // programming PMC.. - (*pc)++; - tmpv = imm | (PROGRAM((*pc)++) << 16); - ret += 2; - emit_mov_const(A_COND_AL, 0, tmpv); - EOP_LDR_IMM(1,7,0x484); // ldr r0, [r7, #0x484] // emu_status - EOP_STR_IMM(0,7,0x400+14*4); // PMC - // reads on fe06, fe08; next op is ld -, - if ((tmpv == 0x187f03 || tmpv == 0x187f04) && (PROGRAM(*pc) & 0xfff0) == 0) - { - int flag = (tmpv == 0x187f03) ? SSP_WAIT_30FE06 : SSP_WAIT_30FE08; - tr_flush_dirty_ST(); - EOP_LDR_IMM(0,7,0x490); // dram_ptr - EOP_ADD_IMM(0,0,24/2,0xfe); // add r0, r0, #0xfe00 - EOP_LDRH_IMM(0,0,8); // ldrh r0, [r0, #8] - EOP_TST_REG_SIMPLE(0,0); - EOP_C_DOP_IMM(A_COND_EQ,A_OP_ADD,0,11,11,22/2,1); // add r11, r11, #1024 - EOP_C_DOP_IMM(A_COND_EQ,A_OP_ORR,0, 1, 1,24/2,flag>>8); // orr r1, r1, #SSP_WAIT_30FE08 - } - EOP_ORR_IMM(1,1,0,SSP_PMC_SET); // orr r1, r1, #SSP_PMC_SET - EOP_STR_IMM(1,7,0x484); // str r1, [r7, #0x484] // emu_status - hostreg_r[0] = hostreg_r[1] = -1; - ret += 2; break; + tmpv = (op & 0xf0) >> 4; // dst + ret = tr_detect_pm0_block(op, pc, imm); + if (ret > 0) break; + ret = tr_detect_set_pm(op, pc, imm); + if (ret > 0) break; + tr_mov16(0, imm); + tr_write_funcs[tmpv](imm); + if (tmpv == SSP_PC) { + ret |= 0x10000; + *jump_pc = imm; } - else - return -1; /* TODO.. */ + ret += 2; break; // ld d, ((ri)) - case 0x05: { - int r; - r = (op&3) | ((op>>6)&4); // src + case 0x05: tmpv2 = (op >> 4) & 0xf; // dst - if (tmpv2 >= 8) return -1; // TODO - - if ((r&3) == 3) { - tr_bank_read((op&0x100) | ((op>>2)&3)); - } else if (known_regb & (1 << (r+8))) { - tr_bank_read((op&0x100) | known_regs.r[r]); - } else { - int reg = (r < 4) ? 8 : 9; - int ror = ((4 - (r&3))*8) & 0x1f; - EOP_AND_IMM(1,reg,ror/2,0xff); // and r1, r{7,8}, - if (r >= 4) - EOP_ORR_IMM(1,1,((ror-8)&0x1f)/2,1); // orr r1, r1, 1<>2)&3)); - } else if (known_regb & (1 << (r+8))) { - tr_bank_write((op&0x100) | known_regs.r[r]); - } else { - EOP_STRH_SIMPLE(0,1); // strh r0, [r1] - hostreg_r[1] = -1; + tr_rX_read2(op); + tr_write_funcs[tmpv2](-1); + if (tmpv2 == SSP_PC) { + ret |= 0x10000; + *end_cond = -A_COND_AL; } - EOP_LDRH_SIMPLE(0,2); // ldrh r0, [r0] - hostreg_r[0] = hostreg_r[2] = -1; - known_regb &= ~(1 << tmpv2); - tr_write_funcs[tmpv2](); - ret += 3; break; /* should certainly take > 1 */ - } + ret += 3; break; // ldi (ri), imm case 0x06: tr_mov16(0, imm); - tr_rX_write1(op); + tr_rX_write(op); ret += 2; break; // ld adr, a case 0x07: - if (hostreg_r[0] != (SSP_A<<16)) { - EOP_MOV_REG_LSR(0, 5, 16); // mov r0, r5, lsr #16 @ A - hostreg_r[0] = SSP_A<<16; - } + tr_A_to_r0(op); tr_bank_write(op&0x1ff); ret++; break; @@ -1164,21 +1357,18 @@ static int translate_op(unsigned int op, int *pc, int imm) int r; r = (op&3) | ((op>>6)&4); // src tmpv2 = (op >> 4) & 0xf; // dst - if (tmpv2 >= 8) tr_unhandled(); if ((r&3) == 3) tr_unhandled(); if (known_regb & (1 << (r+8))) { tr_mov16(0, known_regs.r[r]); - known_regs.gr[tmpv2].h = known_regs.r[r]; - known_regb |= 1 << tmpv2; + tr_write_funcs[tmpv2](known_regs.r[r]); } else { int reg = (r < 4) ? 8 : 9; if (r&3) EOP_MOV_REG_LSR(0, reg, (r&3)*8); // mov r0, r{7,8}, lsr #lsr EOP_AND_IMM(0, (r&3)?0:reg, 0, 0xff); // and r0, r{7,8}, hostreg_r[0] = -1; - known_regb &= ~(1 << tmpv2); + tr_write_funcs[tmpv2](-1); } - tr_write_funcs[tmpv2](); ret++; break; } @@ -1187,7 +1377,6 @@ static int translate_op(unsigned int op, int *pc, int imm) int r; r = (op&3) | ((op>>6)&4); // dst tmpv = (op >> 4) & 0xf; // src - if (tmpv >= 8) tr_unhandled(); if ((r&3) == 3) tr_unhandled(); if (known_regb & (1 << tmpv)) { @@ -1197,7 +1386,7 @@ static int translate_op(unsigned int op, int *pc, int imm) } else { int reg = (r < 4) ? 8 : 9; int ror = ((4 - (r&3))*8) & 0x1f; - tr_read_funcs[tmpv](); + tr_read_funcs[tmpv](op); EOP_BIC_IMM(reg, reg, ror/2, 0xff); // bic r{7,8}, r{7,8}, EOP_AND_IMM(0, 0, 0, 0xff); // and r0, r0, 0xff EOP_ORR_REG_LSL(reg, reg, 0, (r&3)*8); // orr r{7,8}, r{7,8}, r0, lsl #lsl @@ -1209,7 +1398,7 @@ static int translate_op(unsigned int op, int *pc, int imm) } // ldi ri, simm - case 0x0c ... 0x0f: + case 0x0c: case 0x0d: case 0x0e: case 0x0f: tmpv = (op>>8)&7; known_regs.r[tmpv] = op; known_regb |= 1 << (tmpv + 8); @@ -1217,118 +1406,317 @@ static int translate_op(unsigned int op, int *pc, int imm) ret++; break; // call cond, addr - case 0x24: - tr_mov16(0, *pc); - tr_r0_to_STACK(); + case 0x24: { + u32 *jump_op = NULL; tmpv = tr_cond_check(op); - tr_mov16_cond(tmpv, 0, imm); if (tmpv != A_COND_AL) { - tr_mov16_cond(tr_neg_cond(tmpv), 0, *pc); + jump_op = tcache_ptr; + EOP_MOV_IMM(0, 0, 0); // placeholder for branch + } + tr_mov16(0, *pc); + tr_r0_to_STACK(*pc); + if (tmpv != A_COND_AL) { + u32 *real_ptr = tcache_ptr; + tcache_ptr = jump_op; + EOP_C_B(tr_neg_cond(tmpv),0,real_ptr - jump_op - 2); + tcache_ptr = real_ptr; } - tr_r0_to_PC(); + tr_mov16_cond(tmpv, 0, imm); + if (tmpv != A_COND_AL) + tr_mov16_cond(tr_neg_cond(tmpv), 0, *pc); + tr_r0_to_PC(tmpv == A_COND_AL ? imm : -1); + ret |= 0x10000; + *end_cond = tmpv; + *jump_pc = imm; ret += 2; break; + } // ld d, (a) case 0x25: tmpv2 = (op >> 4) & 0xf; // dst - if (tmpv2 >= 8) return -1; // TODO - - tr_A_to_r0(); + tr_A_to_r0(op); EOP_LDR_IMM(1,7,0x48c); // ptr_iram_rom EOP_ADD_REG_LSL(0,1,0,1); // add r0, r1, r0, lsl #1 EOP_LDRH_SIMPLE(0,0); // ldrh r0, [r0] hostreg_r[0] = hostreg_r[1] = -1; - known_regb &= ~(1 << tmpv2); - tr_write_funcs[tmpv2](); + tr_write_funcs[tmpv2](-1); + if (tmpv2 == SSP_PC) { + ret |= 0x10000; + *end_cond = -A_COND_AL; + } ret += 3; break; // bra cond, addr case 0x26: tmpv = tr_cond_check(op); tr_mov16_cond(tmpv, 0, imm); - if (tmpv != A_COND_AL) { + if (tmpv != A_COND_AL) tr_mov16_cond(tr_neg_cond(tmpv), 0, *pc); - } - tr_r0_to_PC(); + tr_r0_to_PC(tmpv == A_COND_AL ? imm : -1); + ret |= 0x10000; + *end_cond = tmpv; + *jump_pc = imm; ret += 2; break; // mod cond, op - // TODO: test case 0x48: { // check for repeats of this op tmpv = 1; // count while (PROGRAM(*pc) == op && (op & 7) != 6) { (*pc)++; tmpv++; + n_in_ops++; } + if ((op&0xf0) != 0) // !always + tr_make_dirty_ST(); + tmpv2 = tr_cond_check(op); switch (op & 7) { case 2: EOP_C_DOP_REG_XIMM(tmpv2,A_OP_MOV,1,0,5,tmpv,A_AM1_ASR,5); break; // shr (arithmetic) case 3: EOP_C_DOP_REG_XIMM(tmpv2,A_OP_MOV,1,0,5,tmpv,A_AM1_LSL,5); break; // shl case 6: EOP_C_DOP_IMM(tmpv2,A_OP_RSB,1,5,5,0,0); break; // neg - case 7: EOP_C_DOP_IMM(tmpv2,A_OP_EOR,0,5,1,A_AM1_ASR,5); // eor r1, r5, r5, asr #31 - EOP_C_DOP_IMM(tmpv2,A_OP_ADD,1,1,5,A_AM1_LSR,5); // adds r5, r1, r5, lsr #1 + case 7: EOP_C_DOP_REG_XIMM(tmpv2,A_OP_EOR,0,5,1,31,A_AM1_ASR,5); // eor r1, r5, r5, asr #31 + EOP_C_DOP_REG_XIMM(tmpv2,A_OP_ADD,1,1,5,31,A_AM1_LSR,5); // adds r5, r1, r5, lsr #31 hostreg_r[1] = -1; break; // abs default: tr_unhandled(); } - dirty_regb |= KRREG_ST; + + hostreg_sspreg_changed(SSP_A); + dirty_regb |= KRREG_ST; + known_regb &= ~KRREG_ST; + known_regb &= ~(KRREG_A|KRREG_AL); ret += tmpv; break; } - -/* // mpys? case 0x1b: - read_P(); // update P - rA32 -= rP.v; // maybe only upper word? - UPD_ACC_ZN // there checking flags after this - rX = ptr1_read_(op&3, 0, (op<<1)&0x18); // ri (maybe rj?) - rY = ptr1_read_((op>>4)&3, 4, (op>>3)&0x18); // rj - break; + tr_flush_dirty_P(); + tr_mac_load_XY(op); + tr_make_dirty_ST(); + EOP_C_DOP_REG_XIMM(A_COND_AL,A_OP_SUB,1,5,5,0,A_AM1_LSL,10); // subs r5, r5, r10 + hostreg_sspreg_changed(SSP_A); + known_regb &= ~(KRREG_A|KRREG_AL); + dirty_regb |= KRREG_ST; + ret++; break; // mpya (rj), (ri), b case 0x4b: - read_P(); // update P - rA32 += rP.v; // confirmed to be 32bit - UPD_ACC_ZN // ? - rX = ptr1_read_(op&3, 0, (op<<1)&0x18); // ri (maybe rj?) - rY = ptr1_read_((op>>4)&3, 4, (op>>3)&0x18); // rj - break; + tr_flush_dirty_P(); + tr_mac_load_XY(op); + tr_make_dirty_ST(); + EOP_C_DOP_REG_XIMM(A_COND_AL,A_OP_ADD,1,5,5,0,A_AM1_LSL,10); // adds r5, r5, r10 + hostreg_sspreg_changed(SSP_A); + known_regb &= ~(KRREG_A|KRREG_AL); + dirty_regb |= KRREG_ST; + ret++; break; // mld (rj), (ri), b case 0x5b: - EOP_MOV_IMM(5, 0, 0); // mov r5, #0 - known_regs.r[SSP_A].v = 0; + EOP_C_DOP_IMM(A_COND_AL,A_OP_MOV,1,0,5,0,0); // movs r5, #0 + hostreg_sspreg_changed(SSP_A); + known_regs.gr[SSP_A].v = 0; known_regb |= (KRREG_A|KRREG_AL); - EOP_BIC_IMM(6, 6, 0, 0x0f); // bic r6, r6, 0xf // flags - EOP_BIC_IMM(6, 6, 0, 0x04); // bic r6, r6, 4 // set Z - // TODO + dirty_regb |= KRREG_ST; + tr_mac_load_XY(op); + ret++; break; + + // OP a, s + case 0x10: + case 0x30: + case 0x40: + case 0x50: + case 0x60: + case 0x70: + tmpv = op & 0xf; // src + tmpv2 = tr_aop_ssp2arm(op>>13); // op + tmpv3 = (tmpv2 == A_OP_CMP) ? 0 : 5; + if (tmpv == SSP_P) { + tr_flush_dirty_P(); + EOP_C_DOP_REG_XIMM(A_COND_AL,tmpv2,1,5,tmpv3, 0,A_AM1_LSL,10); // OPs r5, r5, r10 + } else if (tmpv == SSP_A) { + EOP_C_DOP_REG_XIMM(A_COND_AL,tmpv2,1,5,tmpv3, 0,A_AM1_LSL, 5); // OPs r5, r5, r5 + } else { + tr_read_funcs[tmpv](op); + EOP_C_DOP_REG_XIMM(A_COND_AL,tmpv2,1,5,tmpv3,16,A_AM1_LSL, 0); // OPs r5, r5, r0, lsl #16 + } + hostreg_sspreg_changed(SSP_A); + known_regb &= ~(KRREG_A|KRREG_AL|KRREG_ST); + dirty_regb |= KRREG_ST; + ret++; break; + + // OP a, (ri) + case 0x11: + case 0x31: + case 0x41: + case 0x51: + case 0x61: + case 0x71: + tmpv2 = tr_aop_ssp2arm(op>>13); // op + tmpv3 = (tmpv2 == A_OP_CMP) ? 0 : 5; + tr_rX_read((op&3)|((op>>6)&4), (op>>2)&3); + EOP_C_DOP_REG_XIMM(A_COND_AL,tmpv2,1,5,tmpv3,16,A_AM1_LSL,0); // OPs r5, r5, r0, lsl #16 + hostreg_sspreg_changed(SSP_A); + known_regb &= ~(KRREG_A|KRREG_AL|KRREG_ST); + dirty_regb |= KRREG_ST; + ret++; break; + + // OP a, adr + case 0x13: + case 0x33: + case 0x43: + case 0x53: + case 0x63: + case 0x73: + tmpv2 = tr_aop_ssp2arm(op>>13); // op + tmpv3 = (tmpv2 == A_OP_CMP) ? 0 : 5; + tr_bank_read(op&0x1ff); + EOP_C_DOP_REG_XIMM(A_COND_AL,tmpv2,1,5,tmpv3,16,A_AM1_LSL,0); // OPs r5, r5, r0, lsl #16 + hostreg_sspreg_changed(SSP_A); + known_regb &= ~(KRREG_A|KRREG_AL|KRREG_ST); + dirty_regb |= KRREG_ST; + ret++; break; + + // OP a, imm + case 0x14: + case 0x34: + case 0x44: + case 0x54: + case 0x64: + case 0x74: + tmpv = (op & 0xf0) >> 4; + tmpv2 = tr_aop_ssp2arm(op>>13); // op + tmpv3 = (tmpv2 == A_OP_CMP) ? 0 : 5; + tr_mov16(0, imm); + EOP_C_DOP_REG_XIMM(A_COND_AL,tmpv2,1,5,tmpv3,16,A_AM1_LSL,0); // OPs r5, r5, r0, lsl #16 + hostreg_sspreg_changed(SSP_A); + known_regb &= ~(KRREG_A|KRREG_AL|KRREG_ST); + dirty_regb |= KRREG_ST; + ret += 2; break; + + // OP a, ((ri)) + case 0x15: + case 0x35: + case 0x45: + case 0x55: + case 0x65: + case 0x75: + tmpv2 = tr_aop_ssp2arm(op>>13); // op + tmpv3 = (tmpv2 == A_OP_CMP) ? 0 : 5; + tr_rX_read2(op); + EOP_C_DOP_REG_XIMM(A_COND_AL,tmpv2,1,5,tmpv3,16,A_AM1_LSL,0); // OPs r5, r5, r0, lsl #16 + hostreg_sspreg_changed(SSP_A); + known_regb &= ~(KRREG_A|KRREG_AL|KRREG_ST); + dirty_regb |= KRREG_ST; + ret += 3; break; + + // OP a, ri + case 0x19: + case 0x39: + case 0x49: + case 0x59: + case 0x69: + case 0x79: { + int r; + tmpv2 = tr_aop_ssp2arm(op>>13); // op + tmpv3 = (tmpv2 == A_OP_CMP) ? 0 : 5; + r = (op&3) | ((op>>6)&4); // src + if ((r&3) == 3) tr_unhandled(); + + if (known_regb & (1 << (r+8))) { + EOP_C_DOP_IMM(A_COND_AL,tmpv2,1,5,tmpv3,16/2,known_regs.r[r]); // OPs r5, r5, #val<<16 + } else { + int reg = (r < 4) ? 8 : 9; + if (r&3) EOP_MOV_REG_LSR(0, reg, (r&3)*8); // mov r0, r{7,8}, lsr #lsr + EOP_AND_IMM(0, (r&3)?0:reg, 0, 0xff); // and r0, r{7,8}, + EOP_C_DOP_REG_XIMM(A_COND_AL,tmpv2,1,5,tmpv3,16,A_AM1_LSL,0); // OPs r5, r5, r0, lsl #16 + hostreg_r[0] = -1; + } + hostreg_sspreg_changed(SSP_A); + known_regb &= ~(KRREG_A|KRREG_AL|KRREG_ST); + dirty_regb |= KRREG_ST; + ret++; break; + } + + // OP simm + case 0x1c: + case 0x3c: + case 0x4c: + case 0x5c: + case 0x6c: + case 0x7c: + tmpv2 = tr_aop_ssp2arm(op>>13); // op + tmpv3 = (tmpv2 == A_OP_CMP) ? 0 : 5; + EOP_C_DOP_IMM(A_COND_AL,tmpv2,1,5,tmpv3,16/2,op & 0xff); // OPs r5, r5, #val<<16 + hostreg_sspreg_changed(SSP_A); + known_regb &= ~(KRREG_A|KRREG_AL|KRREG_ST); + dirty_regb |= KRREG_ST; ret++; break; -*/ } + n_in_ops++; + return ret; } -static void *translate_block(int pc) +static void emit_block_prologue(void) +{ + // check if there are enough cycles.. + // note: r0 must contain PC of current block + EOP_CMP_IMM(11,0,0); // cmp r11, #0 + emit_call(A_COND_LE, ssp_drc_end); +} + +/* cond: + * >0: direct (un)conditional jump + * <0: indirect jump + */ +static void emit_block_epilogue(int cycles, int cond, int pc, int end_pc) +{ + if (cycles > 0xff) { elprintf(EL_ANOMALY, "large cycle count: %i\n", cycles); cycles = 0xff; } + EOP_SUB_IMM(11,11,0,cycles); // sub r11, r11, #cycles + + if (cond < 0 || (end_pc >= 0x400 && pc < 0x400)) { + // indirect jump, or rom -> iram jump, must use dispatcher + emit_jump(A_COND_AL, ssp_drc_next); + } + else if (cond == A_COND_AL) { + u32 *target = (pc < 0x400) ? ssp_block_table_iram[ssp->drc.iram_context][pc] : ssp_block_table[pc]; + if (target != NULL) + emit_jump(A_COND_AL, target); + else { + emit_jump(A_COND_AL, ssp_drc_next); + // cause the next block to be emitted over jump instrction + tcache_ptr--; + } + } + else { + u32 *target1 = (pc < 0x400) ? ssp_block_table_iram[ssp->drc.iram_context][pc] : ssp_block_table[pc]; + u32 *target2 = (end_pc < 0x400) ? ssp_block_table_iram[ssp->drc.iram_context][end_pc] : ssp_block_table[end_pc]; + if (target1 != NULL) + emit_jump(cond, target1); + else emit_call(cond, ssp_drc_next_patch); + if (target2 != NULL) + emit_jump(tr_neg_cond(cond), target2); // neg_cond, to be able to swap jumps if needed + else emit_call(tr_neg_cond(cond), ssp_drc_next_patch); + } +} + +void *ssp_translate_block(int pc) { unsigned int op, op1, imm, ccount = 0; unsigned int *block_start; - int ret, ret_prev = -1; + int ret, end_cond = A_COND_AL, jump_pc = -1; - // create .pool - //*tcache_ptr++ = (u32) in_funcs; // -1 func pool - - printf("translate %04x -> %04x\n", pc<<1, (tcache_ptr-tcache)<<2); + //printf("translate %04x -> %04x\n", pc<<1, (tcache_ptr-tcache)<<2); block_start = tcache_ptr; known_regb = 0; dirty_regb = KRREG_P; + known_regs.emu_status = 0; hostreg_clear(); emit_block_prologue(); for (; ccount < 100;) { - //printf(" insn #%i\n", icount); op = PROGRAM(pc++); op1 = op >> 9; imm = (u32)-1; @@ -1336,62 +1724,38 @@ static void *translate_block(int pc) if ((op1 & 0xf) == 4 || (op1 & 0xf) == 6) imm = PROGRAM(pc++); // immediate - ret = translate_op(op, &pc, imm); + ret = translate_op(op, &pc, imm, &end_cond, &jump_pc); if (ret <= 0) { - tr_flush_dirty_prs(); - tr_flush_dirty_ST(); - - emit_mov_const(A_COND_AL, 0, op); - - // need immediate? - if (imm != (u32)-1) - emit_mov_const(A_COND_AL, 1, imm); - - // dump PC - emit_pc_dump(pc); - - if (ret_prev > 0) emit_call(regfile_store); - emit_call(in_funcs[op1]); - emit_call(regfile_load); - - if (in_funcs[op1] == NULL) { - printf("NULL func! op=%08x (%02x)\n", op, op1); - exit(1); - } - ccount++; - hostreg_clear(); - dirty_regb |= KRREG_P; - known_regb = 0; + elprintf(EL_ANOMALY, "NULL func! op=%08x (%02x)\n", op, op1); + //exit(1); } - else - ccount += ret; - if (op1 == 0x24 || op1 == 0x26 || // call, bra - ((op1 == 0 || op1 == 1 || op1 == 4 || op1 == 5 || op1 == 9 || op1 == 0x25) && - (op & 0xf0) == 0x60)) { // ld PC - break; - } - ret_prev = ret; + ccount += ret & 0xffff; + if (ret & 0x10000) break; + } + + if (ccount >= 100) { + end_cond = A_COND_AL; + jump_pc = pc; + emit_mov_const(A_COND_AL, 0, pc); } tr_flush_dirty_prs(); tr_flush_dirty_ST(); - emit_block_epilogue(ccount + 1); - *tcache_ptr++ = 0xffffffff; // end of block - //printf(" %i inst\n", icount); + tr_flush_dirty_pmcrs(); + emit_block_epilogue(ccount, end_cond, jump_pc, pc); - if (tcache_ptr - tcache > TCACHE_SIZE/4) { - printf("tcache overflow!\n"); + if (tcache_ptr - tcache > SSP_TCACHE_SIZE/4) { + elprintf(EL_ANOMALY, "tcache overflow!\n"); fflush(stdout); exit(1); } // stats nblocks++; - //if (pc >= 0x400) - printf("%i blocks, %i bytes\n", nblocks, (tcache_ptr - tcache)*4); - //printf("%p %p\n", tcache_ptr, emit_block_epilogue); + //printf("%i blocks, %i bytes, k=%.3f\n", nblocks, (tcache_ptr - tcache)*4, + // (double)(tcache_ptr - tcache) / (double)n_in_ops); #ifdef DUMP_BLOCK { @@ -1399,6 +1763,7 @@ static void *translate_block(int pc) fwrite(tcache, 1, (tcache_ptr - tcache)*4, f); fclose(f); } + printf("dumped tcache.bin\n"); exit(0); #endif @@ -1411,13 +1776,33 @@ static void *translate_block(int pc) // ----------------------------------------------------- +static void ssp1601_state_load(void) +{ + ssp->drc.iram_dirty = 1; + ssp->drc.iram_context = 0; +} + int ssp1601_dyn_startup(void) { - memset(tcache, 0, TCACHE_SIZE); - memset(block_table, 0, sizeof(block_table)); - memset(block_table_iram, 0, sizeof(block_table_iram)); + memset(tcache, 0, SSP_TCACHE_SIZE); + memset(ssp_block_table, 0, sizeof(ssp_block_table)); + memset(ssp_block_table_iram, 0, sizeof(ssp_block_table_iram)); tcache_ptr = tcache; - *tcache_ptr++ = 0xffffffff; + + PicoLoadStateHook = ssp1601_state_load; + + n_in_ops = 0; +#ifdef ARM + // hle'd blocks + ssp_block_table[0x800/2] = (void *) ssp_hle_800; + ssp_block_table[0x902/2] = (void *) ssp_hle_902; + ssp_block_table_iram[ 7][0x030/2] = (void *) ssp_hle_07_030; + ssp_block_table_iram[ 7][0x036/2] = (void *) ssp_hle_07_036; + ssp_block_table_iram[ 7][0x6d6/2] = (void *) ssp_hle_07_6d6; + ssp_block_table_iram[11][0x12c/2] = (void *) ssp_hle_11_12c; + ssp_block_table_iram[11][0x384/2] = (void *) ssp_hle_11_384; + ssp_block_table_iram[11][0x38a/2] = (void *) ssp_hle_11_38a; +#endif return 0; } @@ -1425,46 +1810,29 @@ int ssp1601_dyn_startup(void) void ssp1601_dyn_reset(ssp1601_t *ssp) { - ssp1601_reset_local(ssp); - ssp->ptr_rom = (unsigned int) Pico.rom; - ssp->ptr_iram_rom = (unsigned int) svp->iram_rom; - ssp->ptr_dram = (unsigned int) svp->dram; + ssp1601_reset(ssp); + ssp->drc.iram_dirty = 1; + ssp->drc.iram_context = 0; + // must do this here because ssp is not available @ startup() + ssp->drc.ptr_rom = (u32) Pico.rom; + ssp->drc.ptr_iram_rom = (u32) svp->iram_rom; + ssp->drc.ptr_dram = (u32) svp->dram; + ssp->drc.ptr_btable = (u32) ssp_block_table; + ssp->drc.ptr_btable_iram = (u32) ssp_block_table_iram; + + // prevent new versions of IRAM from appearing + memset(svp->iram_rom, 0, 0x800); } void ssp1601_dyn_run(int cycles) { if (ssp->emu_status & SSP_WAIT_MASK) return; - //{ printf("%i wait\n", Pico.m.frame_count); return; } - //printf("%i %04x\n", Pico.m.frame_count, rPC<<1); #ifdef DUMP_BLOCK - rPC = DUMP_BLOCK >> 1; + ssp_translate_block(DUMP_BLOCK >> 1); +#endif +#ifdef ARM + ssp_drc_entry(cycles); #endif - while (cycles > 0) - { - int (*trans_entry)(void); - if (rPC < 0x800/2) - { - if (iram_dirty) { - iram_context = get_iram_context(); - iram_dirty--; - } - if (block_table_iram[iram_context][rPC] == NULL) - block_table_iram[iram_context][rPC] = translate_block(rPC); - trans_entry = (void *) block_table_iram[iram_context][rPC]; - } - else - { - if (block_table[rPC] == NULL) - block_table[rPC] = translate_block(rPC); - trans_entry = (void *) block_table[rPC]; - } - - //printf("enter %04x\n", rPC<<1); - cycles -= trans_entry(); - //printf("leave %04x\n", rPC<<1); - } -// debug_dump2file("tcache.bin", tcache, (tcache_ptr - tcache) << 1); -// exit(1); }