X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=Pico%2Fcarthw%2Fsvp%2Fcompiler.c;h=fcef34a5989ca620d915873542c9303d35ea6c27;hb=0e4d7ba5f42c0649d9dcc905d29b04d5a11ecd9c;hp=577e69927b1916b0c8d58f2109fee43b0a699c4c;hpb=b9c1d0129a0842bb545dd30cef73aa975acbb1ac;p=picodrive.git diff --git a/Pico/carthw/svp/compiler.c b/Pico/carthw/svp/compiler.c index 577e699..fcef34a 100644 --- a/Pico/carthw/svp/compiler.c +++ b/Pico/carthw/svp/compiler.c @@ -8,12 +8,11 @@ static unsigned int *block_table[0x5090/2]; static unsigned int *block_table_iram[15][0x800/2]; static unsigned int *tcache_ptr = NULL; -static int had_jump = 0; static int nblocks = 0; static int iram_context = 0; #ifndef ARM -#define DUMP_BLOCK 0x84a +#define DUMP_BLOCK 0x08aa unsigned int tcache[512*1024]; void regfile_load(void){} void regfile_store(void){} @@ -25,7 +24,7 @@ void regfile_store(void){} #define GET_PC() rPC #define GET_PPC_OFFS() (GET_PC()*2 - 2) -#define SET_PC(d) { had_jump = 1; rPC = d; } /* must return to dispatcher after this */ +#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 @@ -534,27 +533,34 @@ static struct { ssp_reg_t gr[8]; unsigned char r[8]; -} const_regs; - -#define CRREG_X (1 << SSP_X) -#define CRREG_Y (1 << SSP_Y) -#define CRREG_A (1 << SSP_A) /* AH only */ -#define CRREG_ST (1 << SSP_ST) -#define CRREG_STACK (1 << SSP_STACK) -#define CRREG_PC (1 << SSP_PC) -#define CRREG_P (1 << SSP_P) -#define CRREG_PR0 (1 << 8) -#define CRREG_PR4 (1 << 12) -#define CRREG_AL (1 << 16) - -static u32 const_regb = 0; /* bitfield of known register values */ -static u32 dirty_regb = 0; /* known vals, which need to be flushed (only r0-r7) */ +} known_regs; + +#define KRREG_X (1 << SSP_X) +#define KRREG_Y (1 << SSP_Y) +#define KRREG_A (1 << SSP_A) /* AH only */ +#define KRREG_ST (1 << SSP_ST) +#define KRREG_STACK (1 << SSP_STACK) +#define KRREG_PC (1 << SSP_PC) +#define KRREG_P (1 << SSP_P) +#define KRREG_PR0 (1 << 8) +#define KRREG_PR4 (1 << 12) +#define KRREG_AL (1 << 16) + +/* bitfield of known register values */ +static u32 known_regb = 0; + +/* known vals, which need to be flushed + * (only ST, P, r0-r7) + * ST means flags are being held in ARM PSR + * P means that it needs to be recalculated + */ +static u32 dirty_regb = 0; /* known values of host regs. - * -1 - unknown - * 00000-0ffff - 16bit value - * 10000-1ffff - base reg (r7) + 16bit val - * 20000 - means reg (low) eq AH + * -1 - unknown + * 000000-00ffff - 16bit value + * 100000-10ffff - base reg (r7) + 16bit val + * 0r0000 - means reg (low) eq gr[r].h, r != AL */ static int hostreg_r[4]; @@ -565,34 +571,66 @@ static void hostreg_clear(void) hostreg_r[i] = -1; } -/*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] == 0x20000) hostreg_r[i] = -1; + if (hostreg_r[i] == (sspreg<<16)) hostreg_r[i] = -1; } #define PROGRAM(x) ((unsigned short *)svp->iram_rom)[x] -/* load 16bit val into host reg r0-r3. Nothing is trashed */ -static void tr_mov16(int r, int val) +static void tr_unhandled(void) { - if (hostreg_r[r] != val) { - emit_mov_const(r, val); - hostreg_r[r] = val; + FILE *f = fopen("tcache.bin", "wb"); + fwrite(tcache, 1, (tcache_ptr - tcache)*4, f); + fclose(f); + printf("unhandled @ %04x\n", known_regs.gr[SSP_PC].h<<1); + exit(1); +} + +/* 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( 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) { + case 0: ror = 0; break; + case 1: ror = 24/2; break; + case 2: ror = 16/2; break; } + reg = (r < 4) ? 8 : 9; + EOP_BIC_IMM(reg,reg,ror,0xff); + if (known_regs.r[r] != 0) + EOP_ORR_IMM(reg,reg,ror,known_regs.r[r]); + dirty_regb &= ~(1 << (r+8)); } -/* write dirty r0-r7 to host regs. Nothing is trashed */ -static void tr_flush_dirty(void) +/* write all dirty pr0-pr7 to host regs. Nothing is trashed */ +static void tr_flush_dirty_prs(void) { int i, ror = 0, reg; - dirty_regb >>= 8; + int dirty = dirty_regb >> 8; /* r0-r7 */ - for (i = 0; dirty_regb && i < 8; i++, dirty_regb >>= 1) + for (i = 0; dirty && i < 8; i++, dirty >>= 1) { - if (!(dirty_regb&1)) continue; + if (!(dirty&1)) continue; switch (i&3) { case 0: ror = 0; break; case 1: ror = 24/2; break; @@ -600,27 +638,74 @@ static void tr_flush_dirty(void) } reg = (i < 4) ? 8 : 9; EOP_BIC_IMM(reg,reg,ror,0xff); - if (const_regs.r[i] != 0) - EOP_ORR_IMM(reg,reg,ror,const_regs.r[i]); + if (known_regs.r[i] != 0) + EOP_ORR_IMM(reg,reg,ror,known_regs.r[i]); } + dirty_regb &= ~0xff00; } -/* read bank word to r0 (MSW may contain trash). Thrashes r1. */ +/* write dirty pr and "forget" it. Nothing is trashed. */ +static void tr_release_pr(int r) +{ + tr_flush_dirty_pr(r); + known_regb &= ~(1 << (r+8)); +} + +/* 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(1); + EOP_ORR_REG_LSR(6,6,1,28); + dirty_regb &= ~KRREG_ST; + 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 */ +static void tr_mov16(int r, int val) +{ + if (hostreg_r[r] != val) { + emit_mov_const(A_COND_AL, r, val); + hostreg_r[r] = val; + } +} + +static void tr_mov16_cond(int cond, int r, int val) +{ + emit_mov_const(cond, r, val); + hostreg_r[r] = -1; +} + +/* read bank word to r0 (upper bits zero). Thrashes r1. */ static void tr_bank_read(int addr) /* word addr 0-0x1ff */ { - if (addr&1) { - int breg = 7; - if (addr > 0x7f) { - if (hostreg_r[1] != (0x10000|((addr&0x180)<<1))) { - EOP_ADD_IMM(1,7,30/2,(addr&0x180)>>1); // add r1, r7, ((op&0x180)<<1) - hostreg_r[1] = 0x10000|((addr&0x180)<<1); - } - breg = 1; + int breg = 7; + if (addr > 0x7f) { + if (hostreg_r[1] != (0x100000|((addr&0x180)<<1))) { + EOP_ADD_IMM(1,7,30/2,(addr&0x180)>>1); // add r1, r7, ((op&0x180)<<1) + hostreg_r[1] = 0x100000|((addr&0x180)<<1); } - EOP_LDRH_IMM(0,breg,(addr&0x7f)<<1); // ldrh r0, [r1, (op&0x7f)<<1] - } else { - EOP_LDR_IMM(0,7,(addr&0x1ff)<<1); // ldr r0, [r1, (op&0x1ff)<<1] + breg = 1; } + EOP_LDRH_IMM(0,breg,(addr&0x7f)<<1); // ldrh r0, [r1, (op&0x7f)<<1] hostreg_r[0] = -1; } @@ -629,46 +714,197 @@ static void tr_bank_write(int addr) { int breg = 7; if (addr > 0x7f) { - if (hostreg_r[1] != (0x10000|((addr&0x180)<<1))) { + if (hostreg_r[1] != (0x100000|((addr&0x180)<<1))) { EOP_ADD_IMM(1,7,30/2,(addr&0x180)>>1); // add r1, r7, ((op&0x180)<<1) - hostreg_r[1] = 0x10000|((addr&0x180)<<1); + hostreg_r[1] = 0x100000|((addr&0x180)<<1); } breg = 1; } EOP_STRH_IMM(0,breg,(addr&0x7f)<<1); // strh r0, [r1, (op&0x7f)<<1] } -/* handle RAM bank pointer modifiers. Nothing is trashed. */ -static void tr_ptrr_mod(int r, int mod, int need_modulo) +/* handle RAM bank pointer modifiers. if need_modulo, trash r1-r3, else nothing */ +static void tr_ptrr_mod(int r, int mod, int need_modulo, int count) { - int modulo = -1, modulo_shift = -1; /* unknown */ + int modulo_shift = -1; /* unknown */ if (mod == 0) return; if (!need_modulo || mod == 1) // +! modulo_shift = 8; - else if (need_modulo && (const_regb & CRREG_ST)) { - modulo_shift = const_regs.gr[SSP_ST].h & 7; + else if (need_modulo && (known_regb & KRREG_ST)) { + modulo_shift = known_regs.gr[SSP_ST].h & 7; if (modulo_shift == 0) modulo_shift = 8; } - if (mod > 1 && modulo_shift == -1) { printf("need var modulo\n"); exit(1); } - modulo = (1 << modulo_shift) - 1; - - if (const_regb & (1 << (r + 8))) { + if (modulo_shift == -1) + { + int reg = (r < 4) ? 8 : 9; + tr_release_pr(r); + 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 + if (r&3) + EOP_ADD_IMM(1, 1, 0, (r&3)*8); // add r1, r1, #(r&3)*8 + EOP_MOV_REG2_ROR(reg,reg,1); // mov reg, reg, ror r1 if (mod == 2) - const_regs.r[r] = (const_regs.r[r] & ~modulo) | ((const_regs.r[r] - 1) & modulo); - else const_regs.r[r] = (const_regs.r[r] & ~modulo) | ((const_regs.r[r] + 1) & modulo); - } else { + EOP_SUB_REG2_LSL(reg,reg,3,2); // sub reg, reg, #0x01000000 << r2 + else EOP_ADD_REG2_LSL(reg,reg,3,2); + EOP_RSB_IMM(1, 1, 0, 32); // rsb r1, r1, #32 + EOP_MOV_REG2_ROR(reg,reg,1); // mov reg, reg, ror r1 + hostreg_r[1] = hostreg_r[2] = hostreg_r[3] = -1; + } + else if (known_regb & (1 << (r + 8))) + { + int modulo = (1 << modulo_shift) - 1; + if (mod == 2) + known_regs.r[r] = (known_regs.r[r] & ~modulo) | ((known_regs.r[r] - count) & modulo); + else known_regs.r[r] = (known_regs.r[r] & ~modulo) | ((known_regs.r[r] + count) & modulo); + } + else + { int reg = (r < 4) ? 8 : 9; int ror = ((r&3) + 1)*8 - (8 - modulo_shift); EOP_MOV_REG_ROR(reg,reg,ror); // {add|sub} reg, reg, #1<>2) & 3; // direct addressing + tr_bank_write((op & 0x100) + mod); + } + else + { + int r = (op&3) | ((op>>6)&4); + if (known_regb & (1 << (r + 8))) { + tr_bank_write((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, 0, 1); + } +} + +/* read (rX) to r0. Trashes r1-r3. */ +static void tr_rX_read(int r, int mod) +{ + if ((r&3) == 3) + { + tr_bank_read(((r << 6) & 0x100) + mod); // direct addressing + } + else + { + if (known_regb & (1 << (r + 8))) { + tr_bank_read(((r << 6) & 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<>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; +} + +/* get ARM cond which would mean that SSP cond is satisfied. No trash. */ +static int tr_cond_check(int op) +{ + int f = (op & 0x100) >> 8; + switch (op&0xf0) { + case 0x00: return A_COND_AL; /* always true */ + case 0x50: /* Z matches f(?) bit */ + if (dirty_regb & KRREG_ST) return f ? A_COND_EQ : A_COND_NE; + EOP_TST_IMM(6, 0, 4); + return f ? A_COND_NE : A_COND_EQ; + case 0x70: /* N matches f(?) bit */ + if (dirty_regb & KRREG_ST) return f ? A_COND_MI : A_COND_PL; + EOP_TST_IMM(6, 0, 8); + return f ? A_COND_NE : A_COND_EQ; + default: + printf("unimplemented cond?\n"); + tr_unhandled(); + return 0; + } +} + +static int tr_neg_cond(int cond) +{ + switch (cond) { + case A_COND_AL: printf("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); + } + return 0; +} + // SSP_GR0, SSP_X, SSP_Y, SSP_A, // SSP_ST, SSP_STACK, SSP_PC, SSP_P, //@ r4: XXYY @@ -677,68 +913,157 @@ static void tr_ptrr_mod(int r, int mod, int need_modulo) //@ r7: SSP context //@ r10: P -// write r0 to general reg handlers. Trashes r1 -static void tr_r0_unhandled(void) +// read general reg to r0. Trashes r1 +static void tr_GR0_to_r0(void) { - printf("unhandled\n"); - exit(1); + tr_mov16(0, 0xffff); +} + +static void tr_X_to_r0(void) +{ + if (hostreg_r[0] != (SSP_X<<16)) { + EOP_MOV_REG_LSR(0, 4, 16); // mov r0, r4, lsr #16 + hostreg_r[0] = SSP_X<<16; + } +} + +static void tr_Y_to_r0(void) +{ + // 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) +{ + if (hostreg_r[0] != (SSP_A<<16)) { + EOP_MOV_REG_LSR(0, 5, 16); // mov r0, r5, lsr #16 @ AH + hostreg_r[0] = SSP_A<<16; + } +} + +static void tr_ST_to_r0(void) +{ + // VR doesn't need much accuracy here.. + EOP_MOV_REG_LSR(0, 6, 4); // mov r0, r6, lsr #4 + EOP_AND_IMM(0, 0, 0, 0x67); // and r0, r0, #0x67 + hostreg_r[0] = -1; +} + +static void tr_STACK_to_r0(void) +{ + // 448 + EOP_SUB_IMM(6, 6, 8/2, 0x20); // sub r6, r6, #1<<29 + EOP_ADD_IMM(1, 7, 24/2, 0x04); // add r1, r7, 0x400 + EOP_ADD_IMM(1, 1, 0, 0x48); // add r1, r1, 0x048 + EOP_ADD_REG_LSR(1, 1, 6, 28); // add r1, r1, r6, lsr #28 + EOP_LDRH_SIMPLE(0, 1); // ldrh r0, [r1] + hostreg_r[0] = hostreg_r[1] = -1; +} + +static void tr_PC_to_r0(void) +{ + tr_mov16(0, known_regs.gr[SSP_PC].h); } -static void tr_r0_to_GR0(void) +static void tr_P_to_r0(void) +{ + 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 tr_read_func *tr_read_funcs[8] = +{ + tr_GR0_to_r0, + tr_X_to_r0, + tr_Y_to_r0, + tr_A_to_r0, + tr_ST_to_r0, + tr_STACK_to_r0, + tr_PC_to_r0, + tr_P_to_r0 +}; + + +// write r0 to general reg handlers. Trashes r1 +#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(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. + 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; + 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, lsl #16 @ AL + 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] = 0x20000; + 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 EOP_ADD_IMM(1, 1, 0, 0x48); // add r1, r1, 0x048 - EOP_ADD_REG_LSR(1, 1, 6, 28); // add r1, r1, r6, lsr #26 + EOP_ADD_REG_LSR(1, 1, 6, 28); // add r1, r1, r6, lsr #28 EOP_STRH_SIMPLE(0, 1); // strh r0, [r1] - EOP_ADD_IMM(6, 6, 24/2, 0x20); // add r6, r6, #1<<29 + EOP_ADD_IMM(6, 6, 8/2, 0x20); // add r6, r6, #1<<29 hostreg_r[1] = -1; } -static void tr_r0_to_PC(void) +static void tr_r0_to_PC(int const_val) { EOP_MOV_REG_LSL(1, 0, 16); // mov r1, r0, lsl #16 - EOP_STR_IMM(0,7,0x400+6*4); // str r0, [r7, #(0x400+6*8)] + EOP_STR_IMM(1,7,0x400+6*4); // str r1, [r7, #(0x400+6*8)] hostreg_r[1] = -1; } -typedef void (tr_write_func)(void); +typedef void (tr_write_func)(int const_val); static tr_write_func *tr_write_funcs[8] = { @@ -749,28 +1074,88 @@ static tr_write_func *tr_write_funcs[8] = tr_r0_to_ST, tr_r0_to_STACK, tr_r0_to_PC, - tr_r0_unhandled + (tr_write_func *)tr_unhandled }; +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_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; +} static int translate_op(unsigned int op, int *pc, int imm) { - u32 tmpv; + u32 tmpv, tmpv2, tmpv3; int ret = 0; + known_regs.gr[SSP_PC].h = *pc; switch (op >> 9) { // ld d, s case 0x00: if (op == 0) { ret++; break; } // nop - break; + 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]((known_regb & (1 << tmpv)) ? known_regs.gr[tmpv].h : -1); + ret++; break; + + // ld d, (ri) + 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 + if (tmpv != 0) + tr_rX_read(r, mod); + else tr_ptrr_mod(r, mod, 1, 1); + tr_write_funcs[tmpv](-1); + ret++; break; + } + + // ld (ri), s + case 0x02: + tmpv = (op >> 4) & 0xf; // src + if (tmpv >= 8) return -1; // TODO + tr_read_funcs[tmpv](); + tr_rX_write(op); + ret++; break; // ld a, adr case 0x03: tr_bank_read(op&0x1ff); - tr_r0_to_A(); - const_regb &= ~CRREG_A; - hostreg_r[0] = 0x20000; + tr_r0_to_A(-1); ret++; break; // ldi d, imm @@ -779,27 +1164,29 @@ static int translate_op(unsigned int op, int *pc, int imm) if (tmpv < 8) { tr_mov16(0, imm); - tr_write_funcs[tmpv](); - const_regs.gr[tmpv].h = imm; - const_regb |= 1 << tmpv; - ret++; break; + tr_write_funcs[tmpv](imm); + ret += 2; break; } else if (tmpv == 0xe && (PROGRAM(*pc) >> 9) == 4) { // programming PMC.. (*pc)++; tmpv = imm | (PROGRAM((*pc)++) << 16); - emit_mov_const(0, tmpv); - EOP_LDR_IMM(1,7,0x484); // ldr r0, [r7, #0x484] // emu_status + ret += 2; + emit_mov_const(A_COND_AL, 0, tmpv); + EOP_LDR_IMM(1,7,0x484); // ldr r1, [r7, #0x484] // emu_status EOP_STR_IMM(0,7,0x400+14*4); // PMC - // TODO: do this only on reads - if (tmpv == 0x187f04) { // fe08 + // 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_ADD_IMM(0,0,24/2,0xfe); // add r0, r0, #0xfe00 + EOP_LDRH_IMM(0,0,(tmpv == 0x187f03) ? 6 : 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,SSP_WAIT_30FE08>>8); // orr r1, r1, #SSP_WAIT_30FE08 + 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 @@ -809,60 +1196,320 @@ static int translate_op(unsigned int op, int *pc, int imm) else return -1; /* TODO.. */ + // ld d, ((ri)) + case 0x05: + tmpv2 = (op >> 4) & 0xf; // dst + if (tmpv2 >= 8) return -1; // TODO + tr_rX_read2(op); + tr_write_funcs[tmpv2](-1); + ret += 3; break; // ldi (ri), imm case 0x06: - // int t = (op&3) | ((op>>6)&4) | ((op<<1)&0x18); tr_mov16(0, imm); - if ((op&3) == 3) - { - tmpv = (op>>2) & 3; // direct addressing - if (op & 0x100) { - if (hostreg_r[1] != 0x10200) { - EOP_ADD_IMM(1,7,30/2,0x200>>2); // add r1, r7, 0x200 - hostreg_r[1] = 0x10200; - } - EOP_STRH_IMM(0,1,tmpv<<1); // str r0, [r1, {0,2,4,6}] - } else { - EOP_STRH_IMM(0,7,tmpv<<1); // str r0, [r7, {0,2,4,6}] - } - } - else - { - int r = (op&3) | ((op>>6)&4); - if (const_regb & (1 << (r + 8))) { - tr_bank_write(const_regs.r[r] | ((r < 4) ? 0 : 0x100)); - } 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, 0); - } - ret++; break; + tr_rX_write(op); + ret += 2; break; // ld adr, a case 0x07: - if (hostreg_r[0] != 0x20000) { - EOP_MOV_REG_LSR(0, 5, 16); // mov r0, r5, lsr #16 @ A - hostreg_r[0] = 0x20000; - } + tr_A_to_r0(); tr_bank_write(op&0x1ff); ret++; break; + // ld d, ri + case 0x09: { + 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]); + 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; + tr_write_funcs[tmpv2](-1); + } + ret++; break; + } + + // ld ri, s + case 0x0a: { + 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)) { + known_regs.r[r] = known_regs.gr[tmpv].h; + known_regb |= 1 << (r + 8); + dirty_regb |= 1 << (r + 8); + } else { + int reg = (r < 4) ? 8 : 9; + int ror = ((4 - (r&3))*8) & 0x1f; + tr_read_funcs[tmpv](); + 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 + hostreg_r[0] = -1; + known_regb &= ~(1 << (r+8)); + dirty_regb &= ~(1 << (r+8)); + } + ret++; break; + } + // ldi ri, simm case 0x0c ... 0x0f: tmpv = (op>>8)&7; - const_regs.r[tmpv] = op; - const_regb |= 1 << (tmpv + 8); + known_regs.r[tmpv] = op; + known_regb |= 1 << (tmpv + 8); dirty_regb |= 1 << (tmpv + 8); ret++; break; + + // call cond, addr + case 0x24: { + u32 *jump_op = NULL; + tmpv = tr_cond_check(op); + if (tmpv != A_COND_AL) { + 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_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 += 2; break; + } + + // ld d, (a) + case 0x25: + tmpv2 = (op >> 4) & 0xf; // dst + if (tmpv2 >= 8) return -1; // TODO + + tr_A_to_r0(); + 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; + tr_write_funcs[tmpv2](-1); + ret += 3; break; + + // bra cond, addr + case 0x26: + 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); + } + tr_r0_to_PC(tmpv == A_COND_AL ? imm : -1); + ret += 2; break; + + // mod cond, op + case 0x48: { + // check for repeats of this op + tmpv = 1; // count + while (PROGRAM(*pc) == op && (op & 7) != 6) { + (*pc)++; tmpv++; + } + 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_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(); + } + + 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: + 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: + 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_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); + 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 >= 8) return -1; // TODO + 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](); + 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; } return ret; @@ -872,14 +1519,15 @@ static void *translate_block(int pc) { unsigned int op, op1, imm, ccount = 0; unsigned int *block_start; - int ret; + int ret, ret_prev = -1; // create .pool //*tcache_ptr++ = (u32) in_funcs; // -1 func pool printf("translate %04x -> %04x\n", pc<<1, (tcache_ptr-tcache)<<2); block_start = tcache_ptr; - const_regb = dirty_regb = 0; + known_regb = 0; + dirty_regb = KRREG_P; hostreg_clear(); emit_block_prologue(); @@ -897,18 +1545,21 @@ static void *translate_block(int pc) ret = translate_op(op, &pc, imm); if (ret <= 0) { - tr_flush_dirty(); + tr_flush_dirty_prs(); + tr_flush_dirty_ST(); - emit_mov_const(0, op); + emit_mov_const(A_COND_AL, 0, op); // need immediate? if (imm != (u32)-1) - emit_mov_const(1, imm); + emit_mov_const(A_COND_AL, 1, imm); // dump PC emit_pc_dump(pc); - emit_interpreter_call(in_funcs[op1]); + 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); @@ -916,6 +1567,8 @@ static void *translate_block(int pc) } ccount++; hostreg_clear(); + dirty_regb |= KRREG_P; + known_regb = 0; } else ccount += ret; @@ -925,9 +1578,11 @@ static void *translate_block(int pc) (op & 0xf0) == 0x60)) { // ld PC break; } + ret_prev = ret; } - tr_flush_dirty(); + tr_flush_dirty_prs(); + tr_flush_dirty_ST(); emit_block_epilogue(ccount + 1); *tcache_ptr++ = 0xffffffff; // end of block //printf(" %i inst\n", icount); @@ -970,6 +1625,11 @@ int ssp1601_dyn_startup(void) tcache_ptr = tcache; *tcache_ptr++ = 0xffffffff; +// TODO: rm +{ +static unsigned short dummy = 0; +PC = &dummy; +} return 0; } @@ -977,9 +1637,9 @@ int ssp1601_dyn_startup(void) void ssp1601_dyn_reset(ssp1601_t *ssp) { ssp1601_reset_local(ssp); - ssp->rom_ptr = (unsigned int) Pico.rom; - ssp->iram_ptr = (unsigned int) svp->iram_rom; - ssp->dram_ptr = (unsigned int) svp->dram; + ssp->ptr_rom = (unsigned int) Pico.rom; + ssp->ptr_iram_rom = (unsigned int) svp->iram_rom; + ssp->ptr_dram = (unsigned int) svp->dram; } void ssp1601_dyn_run(int cycles) @@ -1011,8 +1671,6 @@ void ssp1601_dyn_run(int cycles) trans_entry = (void *) block_table[rPC]; } - had_jump = 0; - //printf("enter %04x\n", rPC<<1); cycles -= trans_entry(); //printf("leave %04x\n", rPC<<1);