From: notaz Date: Thu, 21 Feb 2008 22:48:25 +0000 (+0000) Subject: svp: added few opcodes to translate_op() X-Git-Tag: v1.85~569 X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f48f5e3b461a33be0aef9499c553992d768a789f;p=picodrive.git svp: added few opcodes to translate_op() git-svn-id: file:///home/notaz/opt/svn/PicoDrive@361 be3aeb3a-fb24-0410-a615-afba39da0efa --- diff --git a/Pico/carthw/svp/compiler.c b/Pico/carthw/svp/compiler.c index 7f10a5bd..a5ea6bc3 100644 --- a/Pico/carthw/svp/compiler.c +++ b/Pico/carthw/svp/compiler.c @@ -521,7 +521,25 @@ static int translate_op(unsigned int op, int *pc) switch (op >> 9) { // ld d, s - case 0x00: break; + case 0x00: + if (op == 0) return 1; // nop + break; + + // ld a, adr + case 0x03: + EOP_ADD_IMM(0,7,1,30/2,(op&0x180)>>1); // add r1, r7, ((op&0x180)<<1) + EOP_LDRH_IMM(0,1,(op&0x7f)<<1); // ldr r0, [r1, (op&0x7f)<<1] + EOP_MOV_REG_LSL(5, 5, 16); // mov r5, r5, lsl #16 @ A + EOP_ORR_REG_SIMPLE(5, 0); // orr r5, r5, r0 + EOP_MOV_REG_ROR(5,5,16); // mov r5, r5, ror #16 + return 1; + + // ld adr, a + case 0x07: + EOP_ADD_IMM(0,7,1,30/2,(op&0x180)>>1); // add r1, r7, ((op&0x180)<<1) + EOP_MOV_REG_LSR(0, 5, 16); // mov r0, r5, lsr #16 @ A + EOP_STRH_IMM(0,1,(op&0x7f)<<1); // str r0, [r1, (op&0x7f)<<1] + return 1; } return -1; @@ -634,6 +652,7 @@ void ssp1601_dyn_reset(ssp1601_t *ssp) void ssp1601_dyn_run(int cycles) { + //rPC = 0x1272 >> 1; while (cycles > 0) { int (*trans_entry)(void); diff --git a/Pico/carthw/svp/gen_arm.c b/Pico/carthw/svp/gen_arm.c index 6e661726..30108714 100644 --- a/Pico/carthw/svp/gen_arm.c +++ b/Pico/carthw/svp/gen_arm.c @@ -22,6 +22,7 @@ #define A_AM1_REG_XIMM(shift_imm,shift_op,rm) (((shift_imm)<<7) | ((shift_op)<<5) | (rm)) /* data processing op */ +#define A_OP_ADD 0x4 #define A_OP_ORR 0xc #define A_OP_MOV 0xd @@ -33,20 +34,37 @@ #define EOP_MOV_IMM(s, rd,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_MOV,s, 0,rd,ror2,imm8) #define EOP_ORR_IMM(s,rn,rd,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_ORR,s,rn,rd,ror2,imm8) +#define EOP_ADD_IMM(s,rn,rd,ror2,imm8) EOP_C_DOP_IMM(A_COND_AL,A_OP_ADD,s,rn,rd,ror2,imm8) #define EOP_MOV_REG(s, rd,shift_imm,shift_op,rm) EOP_C_DOP_REG(A_COND_AL,A_OP_MOV,s, 0,rd,shift_imm,shift_op,rm) +#define EOP_ORR_REG(s,rn,rd,shift_imm,shift_op,rm) EOP_C_DOP_REG(A_COND_AL,A_OP_ORR,s,rn,rd,shift_imm,shift_op,rm) -#define EOP_MOV_REG_SIMPLE(rd,rm) EOP_MOV_REG(0,rd,0,A_AM1_LSL,rm) +#define EOP_MOV_REG_SIMPLE(rd,rm) EOP_MOV_REG(0,rd,0,A_AM1_LSL,rm) +#define EOP_MOV_REG_LSL(rd,rm,shift_imm) EOP_MOV_REG(0,rd,shift_imm,A_AM1_LSL,rm) +#define EOP_MOV_REG_LSR(rd,rm,shift_imm) EOP_MOV_REG(0,rd,shift_imm,A_AM1_LSR,rm) +#define EOP_MOV_REG_ASR(rd,rm,shift_imm) EOP_MOV_REG(0,rd,shift_imm,A_AM1_ASR,rm) +#define EOP_MOV_REG_ROR(rd,rm,shift_imm) EOP_MOV_REG(0,rd,shift_imm,A_AM1_ROR,rm) -/* ldr and str */ -#define EOP_C_XXR_IMM(cond,u,b,l,rn,rd,offset_12) \ +#define EOP_ORR_REG_SIMPLE(rd,rm) EOP_ORR_REG(0,rd,rd,0,A_AM1_LSL,rm) + +/* addressing mode 2 */ +#define EOP_C_AM2_IMM(cond,u,b,l,rn,rd,offset_12) \ EMIT(((cond)<<28) | 0x05000000 | ((u)<<23) | ((b)<<22) | ((l)<<20) | ((rn)<<16) | ((rd)<<12) | (offset_12)) -#define EOP_LDR_IMM( rd,rn,offset_12) EOP_C_XXR_IMM(A_COND_AL,1,0,1,rn,rd,offset_12) -#define EOP_LDR_NEGIMM(rd,rn,offset_12) EOP_C_XXR_IMM(A_COND_AL,0,0,1,rn,rd,offset_12) -#define EOP_LDR_SIMPLE(rd,rn) EOP_C_XXR_IMM(A_COND_AL,1,0,1,rn,rd,0) -#define EOP_STR_IMM( rd,rn,offset_12) EOP_C_XXR_IMM(A_COND_AL,1,0,0,rn,rd,offset_12) -#define EOP_STR_SIMPLE(rd,rn) EOP_C_XXR_IMM(A_COND_AL,1,0,0,rn,rd,0) +/* addressing mode 3 */ +#define EOP_C_AM3_IMM(cond,u,l,rn,rd,s,h,offset_8) \ + EMIT(((cond)<<28) | 0x01400090 | ((u)<<23) | ((l)<<20) | ((rn)<<16) | ((rd)<<12) | (((offset_8)&0xf0)<<4) | \ + ((s)<<6) | ((h)<<5) | ((offset_8)&0xf)) + +/* ldr and str */ +#define EOP_LDR_IMM( rd,rn,offset_12) EOP_C_AM2_IMM(A_COND_AL,1,0,1,rn,rd,offset_12) +#define EOP_LDR_NEGIMM(rd,rn,offset_12) EOP_C_AM2_IMM(A_COND_AL,0,0,1,rn,rd,offset_12) +#define EOP_LDR_SIMPLE(rd,rn) EOP_C_AM2_IMM(A_COND_AL,1,0,1,rn,rd,0) +#define EOP_STR_IMM( rd,rn,offset_12) EOP_C_AM2_IMM(A_COND_AL,1,0,0,rn,rd,offset_12) +#define EOP_STR_SIMPLE(rd,rn) EOP_C_AM2_IMM(A_COND_AL,1,0,0,rn,rd,0) + +#define EOP_LDRH_IMM( rd,rn,offset_8) EOP_C_AM3_IMM(A_COND_AL,1,1,rn,rd,0,1,offset_8) +#define EOP_STRH_IMM( rd,rn,offset_8) EOP_C_AM3_IMM(A_COND_AL,1,0,rn,rd,0,1,offset_8) /* ldm and stm */ #define EOP_XXM(cond,p,u,s,w,l,rn,list) \