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-rw-r--r--sim/sh/gencode.c1682
1 files changed, 1185 insertions, 497 deletions
diff --git a/sim/sh/gencode.c b/sim/sh/gencode.c
index 3aa3918..02605fc 100644
--- a/sim/sh/gencode.c
+++ b/sim/sh/gencode.c
@@ -25,13 +25,13 @@
-s generates the simulator code jump table
-d generates a define table
-x generates the simulator code switch statement
- default generates the opcode tables
+ default used to generate the opcode tables
*/
#include <stdio.h>
-#define MAX_NR_STUFF 20
+#define MAX_NR_STUFF 42
typedef struct
{
@@ -86,51 +86,55 @@ op tab[] =
{ "", "", "bf <bdisp8>", "10001011i8p1....",
"if (!T) {",
- " nia = PC + 4 + (SEXT(i) * 2);",
+ " SET_NIP (PC + 4 + (SEXT(i) * 2));",
" cycles += 2;",
"}",
},
{ "", "", "bf.s <bdisp8>", "10001111i8p1....",
"if (!T) {",
- " nia = PC + 4 + (SEXT (i) * 2);",
+ " SET_NIP (PC + 4 + (SEXT (i) * 2));",
" cycles += 2;",
" Delay_Slot (PC + 2);",
"}",
},
{ "", "", "bra <bdisp12>", "1010i12.........",
- "nia = PC + 4 + (SEXT12 (i) * 2);",
+ "SET_NIP (PC + 4 + (SEXT12 (i) * 2));",
+ "cycles += 2;",
"Delay_Slot (PC + 2);",
},
{ "", "n", "braf <REG_N>", "0000nnnn00100011",
- "nia = PC + 4 + R[n];",
+ "SET_NIP (PC + 4 + R[n]);",
+ "cycles += 2;",
"Delay_Slot (PC + 2);",
},
{ "", "", "bsr <bdisp12>", "1011i12.........",
- "PR = PC + 4;",
- "nia = PC + 4 + (SEXT12 (i) * 2);",
+ "PR = PH2T (PC + 4);",
+ "SET_NIP (PC + 4 + (SEXT12 (i) * 2));",
+ "cycles += 2;",
"Delay_Slot (PC + 2);",
},
{ "", "n", "bsrf <REG_N>", "0000nnnn00000011",
- "PR = PC + 4;",
- "nia = PC + 4 + R[n];",
+ "PR = PH2T (PC) + 4;",
+ "SET_NIP (PC + 4 + R[n]);",
+ "cycles += 2;",
"Delay_Slot (PC + 2);",
},
{ "", "", "bt <bdisp8>", "10001001i8p1....",
"if (T) {",
- " nia = PC + 4 + (SEXT (i) * 2);",
+ " SET_NIP (PC + 4 + (SEXT (i) * 2));",
" cycles += 2;",
"}",
},
{ "", "", "bt.s <bdisp8>", "10001101i8p1....",
"if (T) {",
- " nia = PC + 4 + (SEXT (i) * 2);",
+ " SET_NIP (PC + 4 + (SEXT (i) * 2));",
" cycles += 2;",
" Delay_Slot (PC + 2);",
"}",
@@ -247,7 +251,7 @@ op tab[] =
/* sh4 */
{ "", "", "fcnvds <DR_N>,FPUL", "1111nnnn10111101",
"if (! FPSCR_PR || n & 1)",
- " saved_state.asregs.exception = SIGILL;",
+ " RAISE_EXCEPTION (SIGILL);",
"else",
"{",
" union",
@@ -263,7 +267,7 @@ op tab[] =
/* sh4 */
{ "", "", "fcnvsd FPUL,<DR_N>", "1111nnnn10101101",
"if (! FPSCR_PR || n & 1)",
- " saved_state.asregs.exception = SIGILL;",
+ " RAISE_EXCEPTION (SIGILL);",
"else",
"{",
" union",
@@ -285,7 +289,7 @@ op tab[] =
/* sh4 */
{ "", "", "fipr <FV_M>,<FV_N>", "1111nnmm11101101",
"/* FIXME: not implemented */",
- "saved_state.asregs.exception = SIGILL;",
+ "RAISE_EXCEPTION (SIGILL);",
"/* FIXME: check for DP and (n & 1) == 0? */",
},
@@ -486,37 +490,30 @@ op tab[] =
},
{ "", "n", "jmp @<REG_N>", "0100nnnn00101011",
- "nia = R[n];",
+ "SET_NIP (PT2H (R[n]));",
+ "cycles += 2;",
"Delay_Slot (PC + 2);",
},
{ "", "n", "jsr @<REG_N>", "0100nnnn00001011",
- "PR = PC + 4;",
- "nia = R[n];",
+ "PR = PH2T (PC + 4);",
"if (~doprofile)",
- " gotcall (PR, nia);",
+ " gotcall (PR, R[n]);",
+ "SET_NIP (PT2H (R[n]));",
+ "cycles += 2;",
"Delay_Slot (PC + 2);",
},
- { "", "n", "ldc <REG_N>,GBR", "0100nnnn00011110",
- "GBR = R[n];",
+ { "", "n", "ldc <REG_N>,<CREG_M>", "0100nnnnmmmm1110",
+ "CREG (m) = R[n];",
"/* FIXME: user mode */",
},
{ "", "n", "ldc <REG_N>,SR", "0100nnnn00001110",
"SET_SR (R[n]);",
"/* FIXME: user mode */",
},
- { "", "n", "ldc <REG_N>,VBR", "0100nnnn00101110",
- "VBR = R[n];",
- "/* FIXME: user mode */",
- },
- { "", "n", "ldc <REG_N>,SSR", "0100nnnn00111110",
- "SSR = R[n];",
- "/* FIXME: user mode */",
- },
- { "", "n", "ldc <REG_N>,SPC", "0100nnnn01001110",
- "SPC = R[n];",
- "/* FIXME: user mode */",
+ { "", "n", "ldc <REG_N>,MOD", "0100nnnn01011110",
+ "SET_MOD (R[n]);",
},
#if 0
{ "", "n", "ldc <REG_N>,DBR", "0100nnnn11111010",
@@ -524,41 +521,9 @@ op tab[] =
"/* FIXME: user mode */",
},
#endif
- { "", "n", "ldc <REG_N>,R0_BANK", "0100nnnn10001110",
- "SET_Rn_BANK (0, R[n]);",
- "/* FIXME: user mode */",
- },
- { "", "n", "ldc <REG_N>,R1_BANK", "0100nnnn10011110",
- "SET_Rn_BANK (1, R[n]);",
- "/* FIXME: user mode */",
- },
- { "", "n", "ldc <REG_N>,R2_BANK", "0100nnnn10101110",
- "SET_Rn_BANK (2, R[n]);",
- "/* FIXME: user mode */",
- },
- { "", "n", "ldc <REG_N>,R3_BANK", "0100nnnn10111110",
- "SET_Rn_BANK (3, R[n]);",
- "/* FIXME: user mode */",
- },
- { "", "n", "ldc <REG_N>,R4_BANK", "0100nnnn11001110",
- "SET_Rn_BANK (4, R[n]);",
- "/* FIXME: user mode */",
- },
- { "", "n", "ldc <REG_N>,R5_BANK", "0100nnnn11011110",
- "SET_Rn_BANK (5, R[n]);",
- "/* FIXME: user mode */",
- },
- { "", "n", "ldc <REG_N>,R6_BANK", "0100nnnn11101110",
- "SET_Rn_BANK (6, R[n]);",
- "/* FIXME: user mode */",
- },
- { "", "n", "ldc <REG_N>,R7_BANK", "0100nnnn11111110",
- "SET_Rn_BANK (7, R[n]);",
- "/* FIXME: user mode */",
- },
- { "", "n", "ldc.l @<REG_N>+,GBR", "0100nnnn00010111",
+ { "", "n", "ldc.l @<REG_N>+,<CREG_M>", "0100nnnnmmmm0111",
"MA (1);",
- "GBR = RLAT (R[n]);",
+ "CREG (m) = RLAT (R[n]);",
"R[n] += 4;",
"/* FIXME: user mode */",
},
@@ -568,23 +533,10 @@ op tab[] =
"R[n] += 4;",
"/* FIXME: user mode */",
},
- { "", "n", "ldc.l @<REG_N>+,VBR", "0100nnnn00100111",
+ { "", "n", "ldc.l @<REG_N>+,MOD", "0100nnnn01010111",
"MA (1);",
- "VBR = RLAT (R[n]);",
+ "SET_MOD (RLAT (R[n]));",
"R[n] += 4;",
- "/* FIXME: user mode */",
- },
- { "", "n", "ldc.l @<REG_N>+,SSR", "0100nnnn00110111",
- "MA (1);",
- "SSR = RLAT (R[n]);",
- "R[n] += 4;",
- "/* FIXME: user mode */",
- },
- { "", "n", "ldc.l @<REG_N>+,SPC", "0100nnnn01000111",
- "MA (1);",
- "SPC = RLAT (R[n]);",
- "R[n] += 4;",
- "/* FIXME: user mode */",
},
#if 0
{ "", "n", "ldc.l @<REG_N>+,DBR", "0100nnnn11110110",
@@ -594,112 +546,45 @@ op tab[] =
"/* FIXME: user mode */",
},
#endif
- { "", "n", "ldc.l @<REG_N>+,R0_BANK", "0100nnnn10000111",
- "MA (1);",
- "SET_Rn_BANK (0, RLAT (R[n]));",
- "R[n] += 4;",
- "/* FIXME: user mode */",
- },
- { "", "n", "ldc.l @<REG_N>+,R1_BANK", "0100nnnn10010111",
- "MA (1);",
- "SET_Rn_BANK (1, RLAT (R[n]));",
- "R[n] += 4;",
- "/* FIXME: user mode */",
- },
- { "", "n", "ldc.l @<REG_N>+,R2_BANK", "0100nnnn10100111",
- "MA (1);",
- "SET_Rn_BANK (2, RLAT (R[n]));",
- "R[n] += 4;",
- "/* FIXME: user mode */",
- },
- { "", "n", "ldc.l @<REG_N>+,R3_BANK", "0100nnnn10110111",
- "MA (1);",
- "SET_Rn_BANK (3, RLAT (R[n]));",
- "R[n] += 4;",
- "/* FIXME: user mode */",
- },
- { "", "n", "ldc.l @<REG_N>+,R4_BANK", "0100nnnn11000111",
- "MA (1);",
- "SET_Rn_BANK (4, RLAT (R[n]));",
- "R[n] += 4;",
- "/* FIXME: user mode */",
- },
- { "", "n", "ldc.l @<REG_N>+,R5_BANK", "0100nnnn11010111",
- "MA (1);",
- "SET_Rn_BANK (5, RLAT (R[n]));",
- "R[n] += 4;",
- "/* FIXME: user mode */",
- },
- { "", "n", "ldc.l @<REG_N>+,R6_BANK", "0100nnnn11100111",
- "MA (1);",
- "SET_Rn_BANK (6, RLAT (R[n]));",
- "R[n] += 4;",
- "/* FIXME: user mode */",
+
+ /* sh-dsp */
+ { "", "", "ldre @(<disp>,PC)", "10001110i8p1....",
+ "RE = SEXT (i) * 2 + 4 + PH2T (PC);",
},
- { "", "n", "ldc.l @<REG_N>+,R7_BANK", "0100nnnn11110111",
- "MA (1);",
- "SET_Rn_BANK (7, RLAT (R[n]));",
- "R[n] += 4;",
- "/* FIXME: user mode */",
+ { "", "", "ldrs @(<disp>,PC)", "10001100i8p1....",
+ "RS = SEXT (i) * 2 + 4 + PH2T (PC);",
},
- /* sh3e */
- { "", "", "lds <REG_N>,FPUL", "0100nnnn01011010",
- "FPUL = R[n];",
+ { "", "n", "lds <REG_N>,<SREG_M>", "0100nnnnssss1010",
+ "SREG (m) = R[n];",
},
- /* sh3e */
- { "", "", "lds.l @<REG_N>+,FPUL", "0100nnnn01010110",
+ { "", "n", "lds.l @<REG_N>+,<SREG_M>", "0100nnnnssss0110",
"MA (1);",
- "FPUL = RLAT(R[n]);",
+ "SREG (m) = RLAT(R[n]);",
"R[n] += 4;",
},
- /* sh3e */
- { "", "", "lds <REG_N>,FPSCR", "0100nnnn01101010",
+ /* sh3e / sh-dsp (lds <REG_N>,DSR) */
+ { "", "n", "lds <REG_N>,FPSCR", "0100nnnn01101010",
"SET_FPSCR(R[n]);",
},
- /* sh3e */
- { "", "", "lds.l @<REG_N>+,FPSCR", "0100nnnn01100110",
+ /* sh3e / sh-dsp (lds.l @<REG_N>+,DSR) */
+ { "", "n", "lds.l @<REG_N>+,FPSCR", "0100nnnn01100110",
"MA (1);",
"SET_FPSCR (RLAT(R[n]));",
"R[n] += 4;",
},
- { "", "n", "lds <REG_N>,MACH", "0100nnnn00001010",
- "MACH = R[n];",
- },
- { "", "n", "lds <REG_N>,MACL", "0100nnnn00011010",
- "MACL= R[n];",
- },
- { "", "n", "lds <REG_N>,PR", "0100nnnn00101010",
- "PR = R[n];",
- },
- { "", "n", "lds.l @<REG_N>+,MACH", "0100nnnn00000110",
- "MA (1);",
- "MACH = SEXT(RLAT(R[n]));",
- "R[n]+=4;",
- },
- { "", "n", "lds.l @<REG_N>+,MACL", "0100nnnn00010110",
- "MA (1);",
- "MACL = RLAT(R[n]);",
- "R[n]+=4;",
- },
- { "", "n", "lds.l @<REG_N>+,PR", "0100nnnn00100110",
- "MA (1);",
- "PR = RLAT(R[n]);",
- "R[n]+=4;;",
- },
-
{ "", "", "ldtlb", "0000000000111000",
"/* FIXME: XXX*/ abort();",
},
{ "", "nm", "mac.l @<REG_M>+,@<REG_N>+", "0000nnnnmmmm1111",
- "trap (255,R0,memory,maskl,maskw,little_endian);",
+ "trap (255,R0,memory,maskl,maskw, endianw);",
"/* FIXME: mac.l support */",
},
{ "", "nm", "mac.w @<REG_M>+,@<REG_N>+", "0100nnnnmmmm1111",
- "macw(R0,memory,n,m);",
+ "macw(R0,memory,n,m,endianw);",
},
{ "n", "", "mov #<imm>,<REG_N>", "1110nnnni8*1....",
@@ -764,7 +649,7 @@ op tab[] =
},
{ "n", "", "mov.l @(<disp>,PC),<REG_N>", "1101nnnni8p4....",
"MA (1);",
- "R[n] = RLAT((PC & ~3) + 4 + i);",
+ "R[n] = RLAT ((PH2T (PC) & ~3) + 4 + i);",
"L (n);",
},
{ "n", "m", "mov.l @(<disp>,<REG_M>),<REG_N>", "0101nnnnmmmmi4*4",
@@ -817,7 +702,7 @@ op tab[] =
},
{ "n", "", "mov.w @(<disp>,PC),<REG_N>", "1001nnnni8p2....",
"MA (1);",
- "R[n] = RSWAT (PC + 4 + i);",
+ "R[n] = RSWAT (PH2T (PC + 4 + i));",
"L (n);",
},
{ "0", "m", "mov.w @(<disp>,<REG_M>),R0", "10000101mmmmi4*2",
@@ -864,12 +749,12 @@ op tab[] =
},
{ "0", "", "mova @(<disp>,PC),R0", "11000111i8p4....",
- "R0 = ((i + 4 + PC) & ~0x3);",
+ "R0 = ((i + 4 + PH2T (PC)) & ~0x3);",
},
{ "0", "", "movca.l @R0, <REG_N>", "0000nnnn11000011",
"/* FIXME: Not implemented */",
- "saved_state.asregs.exception = SIGILL;",
+ "RAISE_EXCEPTION (SIGILL);",
},
{ "n", "", "movt <REG_N>", "0000nnnn00101001",
@@ -917,12 +802,12 @@ op tab[] =
{ "0", "", "ocbi @<REG_N>", "0000nnnn10010011",
"/* FIXME: Not implemented */",
- "saved_state.asregs.exception = SIGILL;",
+ "RAISE_EXCEPTION (SIGILL);",
},
{ "0", "", "ocbp @<REG_N>", "0000nnnn10100011",
"/* FIXME: Not implemented */",
- "saved_state.asregs.exception = SIGILL;",
+ "RAISE_EXCEPTION (SIGILL);",
},
{ "", "n", "ocbwb @<REG_N>", "0000nnnn10110011",
@@ -974,23 +859,43 @@ op tab[] =
#if 0
/* SH-[12] */
"int tmp = PC;",
- "nia = RLAT (R[15]) + 2;",
+ "SET_NIP (PT2H (RLAT (R[15]) + 2));",
"R[15] += 4;",
"SET_SR (RLAT (R[15]) & 0x3f3);",
"R[15] += 4;",
"Delay_Slot (PC + 2);",
#else
- "nia = SPC;",
"SET_SR (SSR);",
+ "SET_NIP (PT2H (SPC));",
+ "cycles += 2;",
"Delay_Slot (PC + 2);",
#endif
},
{ "", "", "rts", "0000000000001011",
- "nia = PR;",
+ "SET_NIP (PT2H (PR));",
+ "cycles += 2;",
"Delay_Slot (PC + 2);",
},
+ /* sh-dsp */
+ { "", "n", "setrc <REG_N>", "0100nnnn00010100",
+ "SET_RC (R[n]);",
+ },
+ { "", "n", "setrc #<imm>", "10000010i8*1....",
+ /* It would be more realistic to let loop_start point to some static
+ memory that contains an illegal opcode and then give a bus error when
+ the loop is eventually encountered, but it seems not only simpler,
+ but also more debugging-friendly to just catch the failure here. */
+ "if (BUSERROR (RS | RE, maskw))",
+ " RAISE_EXCEPTION (SIGILL);",
+ "else {",
+ " SET_RC (i);",
+ " loop = get_loop_bounds (RS, RE, memory, mem_end, maskw, endianw);",
+ " CHECK_INSN_PTR (insn_ptr);",
+ "}",
+ },
+
{ "", "", "sets", "0000000001011000",
"SET_SR_S (1);",
},
@@ -1048,25 +953,14 @@ op tab[] =
},
{ "", "", "sleep", "0000000000011011",
- "trap (0xc3, R0, memory, maskl, maskw, little_endian);",
- "nia = PC;",
+ "nip = PC;",
+ "trap (0xc3, R0, memory, maskl, maskw, endianw);",
},
- { "n", "", "stc GBR,<REG_N>", "0000nnnn00010010",
- "R[n] = GBR;",
- },
- { "n", "", "stc SR,<REG_N>", "0000nnnn00000010",
- "R[n] = GET_SR ();",
- },
- { "n", "", "stc VBR,<REG_N>", "0000nnnn00100010",
- "R[n] = VBR;",
- },
- { "n", "", "stc SSR,<REG_N>", "0000nnnn00110010",
- "R[n] = SSR;",
- },
- { "n", "", "stc SPC,<REG_N>", "0000nnnn01000010",
- "R[n] = SPC;",
+ { "n", "", "stc <CREG_M>,<REG_N>", "0000nnnnmmmm0010",
+ "R[n] = CREG (m);",
},
+
#if 0
{ "n", "", "stc SGR,<REG_N>", "0000nnnn00111010",
"R[n] = SGR;",
@@ -1075,54 +969,10 @@ op tab[] =
"R[n] = DBR;",
},
#endif
- { "n", "", "stc R0_BANK,<REG_N>", "0000nnnn10000010",
- "R[n] = Rn_BANK (0);",
- },
- { "n", "", "stc R1_BANK,<REG_N>", "0000nnnn10010010",
- "R[n] = Rn_BANK (1);",
- },
- { "n", "", "stc R2_BANK,<REG_N>", "0000nnnn10100010",
- "R[n] = Rn_BANK (2);",
- },
- { "n", "", "stc R3_BANK,<REG_N>", "0000nnnn10110010",
- "R[n] = Rn_BANK (3);",
- },
- { "n", "", "stc R4_BANK,<REG_N>", "0000nnnn11000010",
- "R[n] = Rn_BANK (4);",
- },
- { "n", "", "stc R5_BANK,<REG_N>", "0000nnnn11010010",
- "R[n] = Rn_BANK (5);",
- },
- { "n", "", "stc R6_BANK,<REG_N>", "0000nnnn11100010",
- "R[n] = Rn_BANK (6);",
- },
- { "n", "", "stc R7_BANK,<REG_N>", "0000nnnn11110010",
- "R[n] = Rn_BANK (7);",
- },
- { "n", "n", "stc.l GBR,@-<REG_N>", "0100nnnn00010011",
+ { "n", "n", "stc.l <CREG_M>,@-<REG_N>", "0100nnnnmmmm0011",
"MA (1);",
"R[n] -= 4;",
- "WLAT (R[n], GBR);;",
- },
- { "n", "n", "stc.l SR,@-<REG_N>", "0100nnnn00000011",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], GET_SR());",
- },
- { "n", "n", "stc.l VBR,@-<REG_N>", "0100nnnn00100011",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], VBR);",
- },
- { "n", "n", "stc.l SSR,@-<REG_N>", "0100nnnn00110011",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], SSR);",
- },
- { "n", "n", "stc.l SPC,@-<REG_N>", "0100nnnn01000011",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], SPC);",
+ "WLAT (R[n], CREG (m));",
},
#if 0
{ "n", "n", "stc.l SGR,@-<REG_N>", "0100nnnn00110010",
@@ -1136,91 +986,14 @@ op tab[] =
"WLAT (R[n], DBR);",
},
#endif
- { "n", "", "stc R0_BANK,@-<REG_N>", "0100nnnn10000010",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], Rn_BANK (0));",
- },
- { "n", "", "stc R1_BANK,@-<REG_N>", "0100nnnn10010010",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], Rn_BANK (1));",
- },
- { "n", "", "stc R2_BANK,@-<REG_N>", "0100nnnn10100010",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], Rn_BANK (2));",
- },
- { "n", "", "stc R3_BANK,@-<REG_N>", "0100nnnn10110010",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], Rn_BANK (3));",
- },
- { "n", "", "stc R4_BANK,@-<REG_N>", "0100nnnn11000010",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], Rn_BANK (4));",
- },
- { "n", "", "stc R5_BANK,@-<REG_N>", "0100nnnn11010010",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], Rn_BANK (5));",
- },
- { "n", "", "stc R6_BANK,@-<REG_N>", "0100nnnn11100010",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], Rn_BANK (6));",
- },
- { "n", "", "stc R7_BANK,@-<REG_N>", "0100nnnn11110010",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], Rn_BANK (7));",
- },
- /* sh3e */
- { "", "", "sts FPUL,<REG_N>", "0000nnnn01011010",
- "R[n] = FPUL;",
- },
- /* sh3e */
- { "", "", "sts.l FPUL,@-<REG_N>", "0100nnnn01010010",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], FPUL);",
+ { "n", "", "sts <SREG_M>,<REG_N>", "0000nnnnssss1010",
+ "R[n] = SREG (m);",
},
- /* sh3e */
- { "", "", "sts FPSCR,<REG_N>", "0000nnnn01101010",
- "R[n] = GET_FPSCR ();",
- },
- /* sh3e */
- { "", "", "sts.l FPSCR,@-<REG_N>", "0100nnnn01100010",
+ { "n", "n", "sts.l <SREG_M>,@-<REG_N>", "0100nnnnssss0010",
"MA (1);",
"R[n] -= 4;",
- "WLAT (R[n], GET_FPSCR ());",
- },
-
- { "n", "", "sts MACH,<REG_N>", "0000nnnn00001010",
- "R[n] = MACH;",
- },
- { "n", "", "sts MACL,<REG_N>", "0000nnnn00011010",
- "R[n] = MACL;",
- },
- { "n", "", "sts PR,<REG_N>", "0000nnnn00101010",
- "R[n] = PR;",
- },
- { "n", "n", "sts.l MACH,@-<REG_N>", "0100nnnn00000010",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], MACH);",
- },
- { "n", "n", "sts.l MACL,@-<REG_N>", "0100nnnn00010010",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], MACL);",
- },
- { "n", "n", "sts.l PR,@-<REG_N>", "0100nnnn00100010",
- "MA (1);",
- "R[n] -= 4;",
- "WLAT (R[n], PR);",
+ "WLAT (R[n], SREG (m));",
},
{ "n", "nm", "sub <REG_M>,<REG_N>", "0011nnnnmmmm1000",
@@ -1264,7 +1037,7 @@ op tab[] =
"if (i==0xc3)",
" PC-=2;",
"if (i<20||i==34||i==0xc3)",
- " trap(i,R,memory,maskl,maskw,little_endian);",
+ " trap(i,R,memory,maskl,maskw,endianw);",
"else {",
" R[15]-=4;",
" WLAT(R[15],GET_SR());",
@@ -1275,18 +1048,18 @@ op tab[] =
#else
"if (i == 0xc3)",
" {",
- " nia = PC;",
- " trap (i, R, memory, maskl, maskw, little_endian);",
+ " nip = PC;",
+ " trap (i, R, memory, maskl, maskw,endianw);",
" }",
"else if (i < 20 || i==34 || i==0xc3)",
- " trap (i, R, memory, maskl, maskw, little_endian);",
+ " trap (i, R, memory, maskl, maskw,endianw);",
"else if (!SR_BL) {",
" /* FIXME: TRA = (imm << 2); */",
" SSR = GET_SR();",
- " SPC = PC + 2;",
+ " SPC = PH2T (PC + 2);",
" SET_SR (GET_SR() | SR_MASK_MD | SR_MASK_BL | SR_MASK_RB);",
" /* FIXME: EXPEVT = 0x00000160; */",
- " nia = VBR + 0x00000100;",
+ " SET_NIP (PT2H (VBR + 0x00000100));",
"}",
#endif
},
@@ -1331,6 +1104,711 @@ op tab[] =
{0, 0}};
+op movsxy_tab[] =
+{
+/* If this is disabled, the simulator speeds up by about 12% on a
+ 450 MHz PIII - 9% with ACE_FAST.
+ Maybe we should have separate simulator loops? */
+#if 1
+ { "n", "n", "movs.w @-<REG_N>,<DSP_REG_M>", "111101NNMMMM0000",
+ "MA (1);",
+ "R[n] -= 2;",
+ "DSP_R (m) = RSWAT (R[n]) << 16;",
+ "DSP_GRD (m) = SIGN32 (DSP_R (m));",
+ },
+ { "", "n", "movs.w @<REG_N>,<DSP_REG_M>", "111101NNMMMM0100",
+ "MA (1);",
+ "DSP_R (m) = RSWAT (R[n]) << 16;",
+ "DSP_GRD (m) = SIGN32 (DSP_R (m));",
+ },
+ { "n", "n", "movs.w @<REG_N>+,<DSP_REG_M>", "111101NNMMMM1000",
+ "MA (1);",
+ "DSP_R (m) = RSWAT (R[n]) << 16;",
+ "DSP_GRD (m) = SIGN32 (DSP_R (m));",
+ "R[n] += 2;",
+ },
+ { "n", "n8","movs.w @<REG_N>+REG_8,<DSP_REG_M>", "111101NNMMMM1100",
+ "MA (1);",
+ "DSP_R (m) = RSWAT (R[n]) << 16;",
+ "DSP_GRD (m) = SIGN32 (DSP_R (m));",
+ "R[n] += R[8];",
+ },
+ { "n", "n", "movs.w @-<REG_N>,<DSP_GRD_M>", "111101NNGGGG0000",
+ "MA (1);",
+ "R[n] -= 2;",
+ "DSP_R (m) = RSWAT (R[n]);",
+ },
+ { "", "n", "movs.w @<REG_N>,<DSP_GRD_M>", "111101NNGGGG0100",
+ "MA (1);",
+ "DSP_R (m) = RSWAT (R[n]);",
+ },
+ { "n", "n", "movs.w @<REG_N>+,<DSP_GRD_M>", "111101NNGGGG1000",
+ "MA (1);",
+ "DSP_R (m) = RSWAT (R[n]);",
+ "R[n] += 2;",
+ },
+ { "n", "n8","movs.w @<REG_N>+REG_8,<DSP_GRD_M>", "111101NNGGGG1100",
+ "MA (1);",
+ "DSP_R (m) = RSWAT (R[n]);",
+ "R[n] += R[8];",
+ },
+ { "n", "n", "<DSP_REG_M>,movs.w @-<REG_N>", "111101NNMMMM0001",
+ "MA (1);",
+ "R[n] -= 2;",
+ "WWAT (R[n], DSP_R (m) >> 16);",
+ },
+ { "", "n", "movs.w <DSP_REG_M>,@<REG_N>", "111101NNMMMM0101",
+ "MA (1);",
+ "WWAT (R[n], DSP_R (m) >> 16);",
+ },
+ { "n", "n", "movs.w <DSP_REG_M>,@<REG_N>+", "111101NNMMMM1001",
+ "MA (1);",
+ "WWAT (R[n], DSP_R (m) >> 16);",
+ "R[n] += 2;",
+ },
+ { "n", "n8","movs.w <DSP_REG_M>,@<REG_N>+REG_8", "111101NNMMMM1101",
+ "MA (1);",
+ "WWAT (R[n], DSP_R (m) >> 16);",
+ "R[n] += R[8];",
+ },
+ { "n", "n", "movs.w <DSP_GRD_M>,@-<REG_N>", "111101NNGGGG0001",
+ "MA (1);",
+ "R[n] -= 2;",
+ "WWAT (R[n], SEXT (DSP_R (m)));",
+ },
+ { "", "n", "movs.w <DSP_GRD_M>,@<REG_N>", "111101NNGGGG0101",
+ "MA (1);",
+ "WWAT (R[n], SEXT (DSP_R (m)));",
+ },
+ { "n", "n", "movs.w <DSP_GRD_M>,@<REG_N>+", "111101NNGGGG1001",
+ "MA (1);",
+ "WWAT (R[n], SEXT (DSP_R (m)));",
+ "R[n] += 2;",
+ },
+ { "n", "n8","movs.w <DSP_GRD_M>,@<REG_N>+REG_8", "111101NNGGGG1101",
+ "MA (1);",
+ "WWAT (R[n], SEXT (DSP_R (m)));",
+ "R[n] += R[8];",
+ },
+ { "n", "n", "movs.l @-<REG_N>,<DSP_REG_M>", "111101NNMMMM0010",
+ "MA (1);",
+ "R[n] -= 4;",
+ "DSP_R (m) = RLAT (R[n]);",
+ "DSP_GRD (m) = SIGN32 (DSP_R (m));",
+ },
+ { "", "n", "movs.l @<REG_N>,<DSP_REG_M>", "111101NNMMMM0110",
+ "MA (1);",
+ "DSP_R (m) = RLAT (R[n]);",
+ "DSP_GRD (m) = SIGN32 (DSP_R (m));",
+ },
+ { "n", "n", "movs.l @<REG_N>+,<DSP_REG_M>", "111101NNMMMM1010",
+ "MA (1);",
+ "DSP_R (m) = RLAT (R[n]);",
+ "DSP_GRD (m) = SIGN32 (DSP_R (m));",
+ "R[n] += 4;",
+ },
+ { "n", "n8","movs.l @<REG_N>+REG_8,<DSP_REG_M>", "111101NNMMMM1110",
+ "MA (1);",
+ "DSP_R (m) = RLAT (R[n]);",
+ "DSP_GRD (m) = SIGN32 (DSP_R (m));",
+ "R[n] += R[8];",
+ },
+ { "n", "n", "<DSP_REG_M>,movs.l @-<REG_N>", "111101NNMMMM0011",
+ "MA (1);",
+ "R[n] -= 4;",
+ "WLAT (R[n], DSP_R (m));",
+ },
+ { "", "n", "movs.l <DSP_REG_M>,@<REG_N>", "111101NNMMMM0111",
+ "MA (1);",
+ "WLAT (R[n], DSP_R (m));",
+ },
+ { "n", "n", "movs.l <DSP_REG_M>,@<REG_N>+", "111101NNMMMM1011",
+ "MA (1);",
+ "WLAT (R[n], DSP_R (m));",
+ "R[n] += 4;",
+ },
+ { "n", "n8","movs.l <DSP_REG_M>,@<REG_N>+REG_8", "111101NNMMMM1111",
+ "MA (1);",
+ "WLAT (R[n], DSP_R (m));",
+ "R[n] += R[8];",
+ },
+ { "n", "n", "<DSP_GRD_M>,movs.l @-<REG_N>", "111101NNGGGG0011",
+ "MA (1);",
+ "R[n] -= 4;",
+ "WLAT (R[n], SEXT (DSP_R (m)));",
+ },
+ { "", "n", "movs.l <DSP_GRD_M>,@<REG_N>", "111101NNGGGG0111",
+ "MA (1);",
+ "WLAT (R[n], SEXT (DSP_R (m)));",
+ },
+ { "n", "n", "movs.l <DSP_GRD_M>,@<REG_N>+", "111101NNGGGG1011",
+ "MA (1);",
+ "WLAT (R[n], SEXT (DSP_R (m)));",
+ "R[n] += 4;",
+ },
+ { "n", "n8","movs.l <DSP_GRD_M>,@<REG_N>+REG_8", "111101NNGGGG1111",
+ "MA (1);",
+ "WLAT (R[n], SEXT (DSP_R (m)));",
+ "R[n] += R[8];",
+ },
+ { "", "n", "movx.w @<REG_x>,<DSP_XX>", "111100xxXX000100",
+ "DSP_R (m) = RSWAT (R[n]) << 16;",
+ "iword &= 0xfd53; goto top;",
+ },
+ { "n", "n", "movx.w @<REG_x>+,<DSP_XX>", "111100xxXX001000",
+ "DSP_R (m) = RSWAT (R[n]) << 16;",
+ "R[n] += ((R[n] & 0xffff) == MOD_ME) ? MOD_DELTA : 2;",
+ "iword &= 0xfd53; goto top;",
+ },
+ { "n", "n8","movx.w @<REG_x>+REG_8,<DSP_XX>", "111100xxXX001000",
+ "DSP_R (m) = RSWAT (R[n]) << 16;",
+ "R[n] += ((R[n] & 0xffff) == MOD_ME) ? MOD_DELTA : R[8];",
+ "iword &= 0xfd53; goto top;",
+ },
+ { "", "n", "movx.w <DSP_Aa>,@<REG_x>", "111100xxaa100100",
+ "WWAT (R[n], DSP_R (m) >> 16);",
+ "iword &= 0xfd53; goto top;",
+ },
+ { "n", "n", "movx.w <DSP_Aa>,@<REG_x>+", "111100xxaa101000",
+ "WWAT (R[n], DSP_R (m) >> 16);",
+ "R[n] += ((R[n] & 0xffff) == MOD_ME) ? MOD_DELTA : 2;",
+ "iword &= 0xfd53; goto top;",
+ },
+ { "n", "n8","movx.w <DSP_Aa>,@<REG_x>+REG_8","111100xxaa101000",
+ "WWAT (R[n], DSP_R (m) >> 16);",
+ "R[n] += ((R[n] & 0xffff) == MOD_ME) ? MOD_DELTA : R[8];",
+ "iword &= 0xfd53; goto top;",
+ },
+ { "", "n", "movy.w @<REG_y>,<DSP_YY>", "111100yyYY000001",
+ "DSP_R (m) = RSWAT (R[n]) << 16;",
+ },
+ { "n", "n", "movy.w @<REG_x>+,<DSP_YY>", "111100yyYY000010",
+ "DSP_R (m) = RSWAT (R[n]) << 16;",
+ "R[n] += ((R[n] | ~0xffff) == MOD_ME) ? MOD_DELTA : 2;",
+ },
+ { "n", "n9","movy.w @<REG_x>+REG_9,<DSP_YY>", "111100yyYY000010",
+ "DSP_R (m) = RSWAT (R[n]) << 16;",
+ "R[n] += ((R[n] | ~0xffff) == MOD_ME) ? MOD_DELTA : R[9];",
+ },
+ { "", "n", "movy.w <DSP_Aa>,@<REG_x>", "111100yyAA010001",
+ "WWAT (R[n], DSP_R (m) >> 16);",
+ },
+ { "n", "n", "movy.w <DSP_Aa>,@<REG_x>+", "111100yyAA010010",
+ "WWAT (R[n], DSP_R (m) >> 16);",
+ "R[n] += ((R[n] | ~0xffff) == MOD_ME) ? MOD_DELTA : 2;",
+ },
+ { "n", "n9", "movy.w <DSP_Aa>,@<REG_x>+REG_9", "111100yyAA010010",
+ "WWAT (R[n], DSP_R (m) >> 16);",
+ "R[n] += ((R[n] | ~0xffff) == MOD_ME) ? MOD_DELTA : R[9];",
+ },
+ { "", "", "nopx nopy", "1111000000000000",
+ "/* nop */",
+ },
+ { "", "", "ppi", "1111100000000000",
+ "ppi_insn (RIAT (nip));",
+ "nip += 2;",
+ "iword &= 0xf7ff; goto top;",
+ },
+#endif
+ {0, 0}};
+
+op ppi_tab[] =
+{
+ { "","", "pshl #<imm>,dz", "00000iiim16.zzzz",
+ "int Sz = DSP_R (z) & 0xffff0000;",
+ "",
+ "if (i < 16)",
+ " res = Sz << i;",
+ "else if (i >= 128 - 16)",
+ " res = Sz >> 128 - i;",
+ "else"
+ " {",
+ " RAISE_EXCEPTION (SIGILL);",
+ " return;",
+ " }",
+ "res &= 0xffff0000;",
+ "res_grd = 0;",
+ "goto logical;",
+ },
+ { "","", "psha #<imm>,dz", "00010iiim32.zzzz",
+ "int Sz = DSP_R (z);",
+ "int Sz_grd = GET_DSP_GRD (z);",
+ "",
+ "if (i < 32)",
+ " {",
+ " if (i == 32)"
+ " {",
+ " res = 0;",
+ " res_grd = Sz;",
+ " }",
+ " else",
+ " {",
+ " res = Sz << i;",
+ " res_grd = Sz_grd << i | (unsigned) Sz >> 32 - i;",
+ " }",
+ " res_grd = SEXT (res_grd);",
+ " carry = res_grd & 1;",
+ " }",
+ "else if (i >= 96)",
+ " {",
+ " i = 128 - i;",
+ " if (i == 32)"
+ " {",
+ " res_grd = SIGN32 (Sz_grd);",
+ " res = Sz_grd;",
+ " }",
+ " else",
+ " {",
+ " res = Sz >> i | Sz_grd << 32 - i;",
+ " res_grd = Sz_grd >> i;",
+ " }",
+ " carry = Sz >> (i - 1) & 1;",
+ " }",
+ "else"
+ " {",
+ " RAISE_EXCEPTION (SIGILL);",
+ " return;",
+ " }",
+ "COMPUTE_OVERFLOW;",
+ "greater_equal = 0;",
+ },
+ { "","", "pmuls Se,Sf,Dg", "0100eeffxxyygguu",
+ "res = (DSP_R (e)) >> 16 * (DSP_R (f) >> 16) * 2;",
+ "if (res == 0x80000000)",
+ " res = 0x7fffffff;",
+ "DSP_R (g) = res;",
+ "DSP_GRD (g) = SIGN32 (res);",
+ "return;",
+ },
+ { "","", "psub Sx,Sy,Du pmuls Se,Sf,Dg", "0110eeffxxyygguu",
+ "int Sx = DSP_R (x);",
+ "int Sx_grd = GET_DSP_GRD (x);",
+ "int Sy = DSP_R (y);",
+ "int Sy_grd = SIGN32 (Sy);",
+ "",
+ "res = (DSP_R (e)) >> 16 * (DSP_R (f) >> 16) * 2;",
+ "if (res == 0x80000000)",
+ " res = 0x7fffffff;",
+ "DSP_R (g) = res;",
+ "DSP_GRD (g) = SIGN32 (res);",
+ "",
+ "z = u;",
+ "res = Sx - Sy;",
+ "carry = (unsigned) res > (unsigned) Sx;",
+ "res_grd = Sx_grd - Sy_grd - carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ },
+ { "","", "padd Sx,Sy,Du pmuls Se,Sf,Dg", "0111eeffxxyygguu",
+ "int Sx = DSP_R (x);",
+ "int Sx_grd = GET_DSP_GRD (x);",
+ "int Sy = DSP_R (y);",
+ "int Sy_grd = SIGN32 (Sy);",
+ "",
+ "res = (DSP_R (e)) >> 16 * (DSP_R (f) >> 16) * 2;",
+ "if (res == 0x80000000)",
+ " res = 0x7fffffff;",
+ "DSP_R (g) = res;",
+ "DSP_GRD (g) = SIGN32 (res);",
+ "",
+ "z = u;",
+ "res = Sx + Sy;",
+ "carry = (unsigned) res < (unsigned) Sx;",
+ "res_grd = Sx_grd + Sy_grd + carry;",
+ "COMPUTE_OVERFLOW;",
+ },
+ { "","", "psubc Sx,Sy,Dz", "10100000xxyyzzzz",
+ "int Sx = DSP_R (x);",
+ "int Sx_grd = GET_DSP_GRD (x);",
+ "int Sy = DSP_R (y);",
+ "int Sy_grd = SIGN32 (Sy);",
+ "",
+ "res = Sx - Sy - (DSR & 1);",
+ "carry = (unsigned) res > (unsigned) Sx || (res == Sx && Sy);",
+ "res_grd = Sx_grd + Sy_grd + carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ "DSR &= ~0xf1;\n",
+ "if (res || res_grd)\n",
+ " DSR |= greater_equal | res_grd >> 2 & DSR_MASK_N | overflow;\n",
+ "else\n",
+ " DSR |= DSR_MASK_Z | overflow;\n",
+ "DSR |= carry;\n",
+ "goto assign_z;\n",
+ },
+ { "","", "paddc Sx,Sy,Dz", "10110000xxyyzzzz",
+ "int Sx = DSP_R (x);",
+ "int Sx_grd = GET_DSP_GRD (x);",
+ "int Sy = DSP_R (y);",
+ "int Sy_grd = SIGN32 (Sy);",
+ "",
+ "res = Sx + Sy + (DSR & 1);",
+ "carry = (unsigned) res < (unsigned) Sx || (res == Sx && Sy);",
+ "res_grd = Sx_grd + Sy_grd + carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ "DSR &= ~0xf1;\n",
+ "if (res || res_grd)\n",
+ " DSR |= greater_equal | res_grd >> 2 & DSR_MASK_N | overflow;\n",
+ "else\n",
+ " DSR |= DSR_MASK_Z | overflow;\n",
+ "DSR |= carry;\n",
+ "goto assign_z;\n",
+ },
+ { "","", "pcmp Sx,Sy", "10000100xxyy....",
+ "int Sx = DSP_R (x);",
+ "int Sx_grd = GET_DSP_GRD (x);",
+ "int Sy = DSP_R (y);",
+ "int Sy_grd = SIGN32 (Sy);",
+ "",
+ "z = 17; /* Ignore result. */",
+ "res = Sx - Sy;",
+ "carry = (unsigned) res > (unsigned) Sx;",
+ "res_grd = Sx_grd - Sy_grd - carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ },
+ { "","", "pwsb Sx,Sy,Dz", "10100100xxyyzzzz",
+ },
+ { "","", "pwad Sx,Sy,Dz", "10110100xxyyzzzz",
+ },
+ { "","", "pabs Sx,Dz", "10001000xx..zzzz",
+ "res = DSP_R (x);",
+ "res_grd = GET_DSP_GRD (x);",
+ "if (res >= 0)",
+ " carry = 0;",
+ "else",
+ " {",
+ " res = -res;",
+ " carry = (res != 0); /* The manual has a bug here. */",
+ " res_grd = -res_grd - carry;",
+ " }",
+ "COMPUTE_OVERFLOW;",
+ "/* ??? The re-computing of overflow after",
+ " saturation processing is specific to pabs. */",
+ "overflow = res_grd != SIGN32 (res) ? DSR_MASK_V : 0;",
+ "ADD_SUB_GE;",
+ },
+ { "","", "prnd Sx,Dz", "10011000xx..zzzz",
+ "int Sx = DSP_R (x);",
+ "int Sx_grd = GET_DSP_GRD (x);",
+ "",
+ "res = Sx + 0x8000;",
+ "carry = (unsigned) res < (unsigned) Sx;",
+ "res_grd = Sx_grd + carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ },
+ { "","", "pabs Sy,Dz", "10101000..yyzzzz",
+ "res = DSP_R (y);",
+ "res_grd = 0;",
+ "overflow = 0;",
+ "greater_equal = DSR_MASK_G;",
+ "if (res >= 0)",
+ " carry = 0;",
+ "else",
+ " {",
+ " res = -res;",
+ " carry = 1;",
+ " if (res < 0)",
+ " {",
+ " if (S)",
+ " res = 0x7fffffff;",
+ " else",
+ " {",
+ " overflow = DSR_MASK_V;",
+ " greater_equal = 0;",
+ " }",
+ " }",
+ " }",
+ },
+ { "","", "prnd Sy,Dz", "10111000..yyzzzz",
+ "int Sy = DSP_R (y);",
+ "int Sy_grd = SIGN32 (Sy);",
+ "",
+ "res = Sy + 0x8000;",
+ "carry = (unsigned) res < (unsigned) Sy;",
+ "res_grd = Sy_grd + carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ },
+ { "","", "(if cc) pshl Sx,Sy,Dz", "100000ccxxyyzzzz",
+ "int Sx = DSP_R (x) & 0xffff0000;",
+ "int Sy = DSP_R (y) >> 16 & 0x7f;",
+ "",
+ "if (Sy < 16)",
+ " res = Sx << Sy;",
+ "else if (Sy >= 128 - 16)",
+ " res = Sx >> 128 - Sy;",
+ "else"
+ " {",
+ " RAISE_EXCEPTION (SIGILL);",
+ " return;",
+ " }",
+ "goto cond_logical;",
+ },
+ { "","", "(if cc) psha Sx,Sy,Dz", "100100ccxxyyzzzz",
+ "int Sx = DSP_R (x);",
+ "int Sx_grd = GET_DSP_GRD (x);",
+ "int Sy = DSP_R (y) >> 16 & 0x7f;",
+ "",
+ "if (Sy < 32)",
+ " {",
+ " if (Sy == 32)"
+ " {",
+ " res = 0;",
+ " res_grd = Sx;",
+ " }",
+ " else",
+ " {",
+ " res = Sx << Sy;",
+ " res_grd = Sx_grd << Sy | (unsigned) Sx >> 32 - Sy;",
+ " }",
+ " res_grd = SEXT (res_grd);",
+ " carry = res_grd & 1;",
+ " }",
+ "else if (Sy >= 96)",
+ " {",
+ " Sy = 128 - Sy;",
+ " if (Sy == 32)"
+ " {",
+ " res_grd = SIGN32 (Sx_grd);",
+ " res = Sx_grd;",
+ " }",
+ " else",
+ " {",
+ " res = Sx >> Sy | Sx_grd << 32 - Sy;",
+ " res_grd = Sx_grd >> Sy;",
+ " }",
+ " carry = Sx >> (Sy - 1) & 1;",
+ " }",
+ "else"
+ " {",
+ " RAISE_EXCEPTION (SIGILL);",
+ " return;",
+ " }",
+ "COMPUTE_OVERFLOW;",
+ "greater_equal = 0;",
+ },
+ { "","", "(if cc) psub Sx,Sy,Dz", "101000ccxxyyzzzz",
+ "int Sx = DSP_R (x);",
+ "int Sx_grd = GET_DSP_GRD (x);",
+ "int Sy = DSP_R (y);",
+ "int Sy_grd = SIGN32 (Sy);",
+ "",
+ "res = Sx - Sy;",
+ "carry = (unsigned) res > (unsigned) Sx;",
+ "res_grd = Sx_grd - Sy_grd - carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ },
+ { "","", "(if cc) padd Sx,Sy,Dz", "101100ccxxyyzzzz",
+ "int Sx = DSP_R (x);",
+ "int Sx_grd = GET_DSP_GRD (x);",
+ "int Sy = DSP_R (y);",
+ "int Sy_grd = SIGN32 (Sy);",
+ "",
+ "res = Sx + Sy;",
+ "carry = (unsigned) res < (unsigned) Sx;",
+ "res_grd = Sx_grd + Sy_grd + carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ },
+ { "","", "(if cc) pand Sx,Sy,Dz", "100101ccxxyyzzzz",
+ "res = DSP_R (x) & DSP_R (y);",
+ "cond_logical:",
+ "res &= 0xffff0000;",
+ "res_grd = 0;",
+ "if (iword & 0x200)\n",
+ " goto assign_z;\n",
+ "logical:",
+ "carry = 0;",
+ "overflow = 0;",
+ "greater_equal = 0;",
+ "DSR &= ~0xf1;\n",
+ "if (res)\n",
+ " DSR |= res >> 26 & DSR_MASK_N;\n",
+ "else\n",
+ " DSR |= DSR_MASK_Z;\n",
+ "goto assign_dc;\n",
+ },
+ { "","", "(if cc) pxor Sx,Sy,Dz", "101001ccxxyyzzzz",
+ "res = DSP_R (x) ^ DSP_R (y);",
+ "goto cond_logical;",
+ },
+ { "","", "(if cc) por Sx,Sy,Dz", "101101ccxxyyzzzz",
+ "res = DSP_R (x) | DSP_R (y);",
+ "goto cond_logical;",
+ },
+ { "","", "(if cc) pdec Sx,Dz", "100010ccxx..zzzz",
+ "int Sx = DSP_R (x);",
+ "int Sx_grd = GET_DSP_GRD (x);",
+ "",
+ "res = Sx - 0x10000;",
+ "carry = res > Sx;",
+ "res_grd = Sx_grd - carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ "res &= 0xffff0000;",
+ },
+ { "","", "(if cc) pinc Sx,Dz", "100110ccxx..zzzz",
+ "int Sx = DSP_R (x);",
+ "int Sx_grd = GET_DSP_GRD (x);",
+ "",
+ "res = Sx + 0x10000;",
+ "carry = res < Sx;",
+ "res_grd = Sx_grd + carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ "res &= 0xffff0000;",
+ },
+ { "","", "(if cc) pdec Sy,Dz", "101010cc..yyzzzz",
+ "int Sy = DSP_R (y);",
+ "int Sy_grd = SIGN32 (Sy);",
+ "",
+ "res = Sy - 0x10000;",
+ "carry = res > Sy;",
+ "res_grd = Sy_grd - carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ "res &= 0xffff0000;",
+ },
+ { "","", "(if cc) pinc Sy,Dz", "101110cc..yyzzzz",
+ "int Sy = DSP_R (y);",
+ "int Sy_grd = SIGN32 (Sy);",
+ "",
+ "res = Sy + 0x10000;",
+ "carry = res < Sy;",
+ "res_grd = Sy_grd + carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ "res &= 0xffff0000;",
+ },
+ { "","", "(if cc) pclr Dz", "100011cc....zzzz",
+ "res = 0;",
+ "res_grd = 0;",
+ "carry = 0;",
+ "overflow = 0;",
+ "greater_equal = 1;",
+ },
+ { "","", "(if cc) pdmsb Sx,Dz", "100111ccxx..zzzz",
+ "unsigned Sx = DSP_R (x);",
+ "int Sx_grd = GET_DSP_GRD (x);",
+ "int i = 16;"
+ "",
+ "if (Sx_grd < 0)",
+ " {",
+ " Sx_grd = ~Sx_grd;",
+ " Sx = ~Sx;",
+ " }",
+ "if (Sx_grd)",
+ " {",
+ " Sx = Sx_grd;",
+ " res = -2;",
+ " }",
+ "else if (Sx)",
+ " res = 30;",
+ "else",
+ " res = 31;",
+ "do"
+ " {",
+ " if (Sx & ~0 << i)",
+ " {",
+ " res -= i;",
+ " Sx >>= i;",
+ " }",
+ " }",
+ "while (i >>= 1);",
+ "res <<= 16;",
+ "res_grd = SIGN32 (res);",
+ "carry = 0;",
+ "overflow = 0;",
+ "ADD_SUB_GE;",
+ },
+ { "","", "(if cc) pdmsb Sy,Dz", "101111cc..yyzzzz",
+ "unsigned Sy = DSP_R (y);",
+ "int i;"
+ "",
+ "if (Sy < 0)",
+ " Sy = ~Sy;",
+ "Sy <<= 1;",
+ "res = 31;",
+ "do"
+ " {",
+ " if (Sy & ~0 << i)",
+ " {",
+ " res -= i;",
+ " Sy >>= i;",
+ " }",
+ " }",
+ "while (i >>= 1);",
+ "res <<= 16;",
+ "res_grd = SIGN32 (res);",
+ "carry = 0;",
+ "overflow = 0;",
+ "ADD_SUB_GE;",
+ },
+ { "","", "(if cc) pneg Sx,Dz", "110010ccxx..zzzz",
+ "int Sx = DSP_R (x);",
+ "int Sx_grd = GET_DSP_GRD (x);",
+ "",
+ "res = 0 - Sx;",
+ "carry = res != 0;",
+ "res_grd = 0 - Sx_grd - carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ },
+ { "","", "(if cc) pcopy Sx,Dz", "110110ccxx..zzzz",
+ "res = DSP_R (x);",
+ "res_grd = GET_DSP_GRD (x);",
+ "carry = 0;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ },
+ { "","", "(if cc) pneg Sy,Dz", "111010cc..yyzzzz",
+ "int Sy = DSP_R (y);",
+ "int Sy_grd = SIGN32 (Sy);",
+ "",
+ "res = 0 - Sy;",
+ "carry = res != 0;",
+ "res_grd = 0 - Sy_grd - carry;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ },
+ { "","", "(if cc) pcopy Sy,Dz", "111110cc..yyzzzz",
+ "res = DSP_R (y);",
+ "res_grd = SIGN32 (res);",
+ "carry = 0;",
+ "COMPUTE_OVERFLOW;",
+ "ADD_SUB_GE;",
+ },
+ { "","", "(if cc) psts MACH,Dz", "110011cc....zzzz",
+ "res = MACH;",
+ "res_grd = SIGN32 (res);",
+ "goto assign_z;",
+ },
+ { "","", "(if cc) psts MACL,Dz", "110111cc....zzzz",
+ "res = MACL;",
+ "res_grd = SIGN32 (res);",
+ "goto assign_z;",
+ },
+ { "","", "(if cc) plds Dz,MACH", "111011cc....zzzz",
+ "if (0xa05f >> z & 1)",
+ " RAISE_EXCEPTION (SIGILL);",
+ "else",
+ " MACH = DSP_R (z);",
+ "return;",
+ },
+ { "","", "(if cc) plds Dz,MACL", "111111cc....zzzz",
+ "if (0xa05f >> z & 1)",
+ " RAISE_EXCEPTION (SIGILL);",
+ "else",
+ " MACL = DSP_R (z) = res;",
+ "return;",
+ },
+ {0, 0}
+};
+
/* Tables of things to put into enums for sh-opc.h */
static char *nibble_type_list[] =
{
@@ -1423,6 +1901,8 @@ qfunc (a, b)
{
char bufa[9];
char bufb[9];
+ int diff;
+
memcpy (bufa, a->code, 4);
memcpy (bufa + 4, a->code + 12, 4);
bufa[8] = 0;
@@ -1430,7 +1910,10 @@ qfunc (a, b)
memcpy (bufb, b->code, 4);
memcpy (bufb + 4, b->code + 12, 4);
bufb[8] = 0;
- return (strcmp (bufa, bufb));
+ diff = strcmp (bufa, bufb);
+ /* Stabilize the sort, so that later entries can override more general
+ preceding entries. */
+ return diff ? diff : a - b;
}
static void
@@ -1448,118 +1931,6 @@ sorttab ()
}
static void
-printonmatch (ptr, a, rep)
- char **ptr;
- char *a;
- char *rep;
-{
- int l = strlen (a);
- if (strncmp (*ptr, a, l) == 0)
- {
- printf ("%s", rep);
- *ptr += l;
- if (**ptr)
- printf (",");
- }
-}
-
-
-static
-void
-think (o)
- op *o;
-{
- char *n;
- char *p;
-
- printf ("{\"");
- n = o->name;
- while (*n && *n != ' ')
- {
- printf ("%c", *n);
- n++;
- }
- printf ("\",{");
-
- p = n;
-
- if (!*p)
- {
- printf ("0");
- }
- while (*p)
- {
- while (*p == ',' || *p == ' ')
- p++;
- printonmatch (&p, "#<imm>", "A_IMM");
- printonmatch (&p, "R0", "A_R0");
- printonmatch (&p, "<REG_N>", "A_REG_N");
- printonmatch (&p, "@<REG_N>+", "A_INC_N");
- printonmatch (&p, "@<REG_N>", "A_IND_N");
- printonmatch (&p, "@-<REG_N>", "A_DEC_N");
- printonmatch (&p, "<REG_M>", " A_REG_M");
- printonmatch (&p, "@<REG_M>+", "A_INC_M");
- printonmatch (&p, "@<REG_M>", "A_IND_M");
- printonmatch (&p, "@-<REG_M>", "A_DEC_M");
- printonmatch (&p, "@(<disp>,PC)", "A_DISP_PC");
- printonmatch (&p, "@(<disp>,<REG_M>)", "A_DISP_REG_M");
- printonmatch (&p, "@(<disp>,<REG_N>)", "A_DISP_REG_N");
- printonmatch (&p, "@(R0,<REG_N>)", "A_IND_R0_REG_N");
- printonmatch (&p, "@(R0,<REG_M>)", "A_IND_R0_REG_M");
- printonmatch (&p, "@(<disp>,GBR)", "A_DISP_GBR");
- printonmatch (&p, "@(R0,GBR)", "A_R0_GBR");
- printonmatch (&p, "<bdisp8>", "A_BDISP8");
- printonmatch (&p, "<bdisp12>", "A_BDISP12");
- printonmatch (&p, "SR", "A_SR");
- printonmatch (&p, "GBR", "A_GBR");
- printonmatch (&p, "VBR", "A_VBR");
- printonmatch (&p, "SSR", "A_SSR");
- printonmatch (&p, "SPC", "A_SPC");
- printonmatch (&p, "MACH", "A_MACH");
- printonmatch (&p, "MACL", "A_MACL");
- printonmatch (&p, "PR", "A_PR");
-
- }
- printf ("},{");
-
- p = o->code;
- while (*p)
- {
- printonmatch (&p, "0000", "HEX_0");
- printonmatch (&p, "0001", "HEX_1");
- printonmatch (&p, "0010", "HEX_2");
- printonmatch (&p, "0011", "HEX_3");
- printonmatch (&p, "0100", "HEX_4");
- printonmatch (&p, "0101", "HEX_5");
- printonmatch (&p, "0110", "HEX_6");
- printonmatch (&p, "0111", "HEX_7");
-
- printonmatch (&p, "1000", "HEX_8");
- printonmatch (&p, "1001", "HEX_9");
- printonmatch (&p, "1010", "HEX_A");
- printonmatch (&p, "1011", "HEX_B");
- printonmatch (&p, "1100", "HEX_C");
- printonmatch (&p, "1101", "HEX_D");
- printonmatch (&p, "1110", "HEX_E");
- printonmatch (&p, "1111", "HEX_F");
- printonmatch (&p, "i8*1....", "IMM_8");
- printonmatch (&p, "i4*1", "IMM_4");
- printonmatch (&p, "i8p4....", "PCRELIMM_8BY4");
- printonmatch (&p, "i8p2....", "PCRELIMM_8BY2");
- printonmatch (&p, "i8*2....", "IMM_8BY2");
- printonmatch (&p, "i4*2", "IMM_4BY2");
- printonmatch (&p, "i8*4....", "IMM_8BY4");
- printonmatch (&p, "i4*4", "IMM_4BY4");
- printonmatch (&p, "i12.........", "BRANCH_12");
- printonmatch (&p, "i8p1....", "BRANCH_8");
- printonmatch (&p, "nnnn", "REG_N");
- printonmatch (&p, "mmmm", "REG_M");
-
- }
- printf ("}},\n");
-}
-
-static void
gengastab ()
{
op *p;
@@ -1572,35 +1943,6 @@ gengastab ()
}
-
-static void
-genopc ()
-{
- op *p;
- make_enum_list ("sh_nibble_type", nibble_type_list);
- make_enum_list ("sh_arg_type", arg_type_list);
-
- printf ("typedef struct {\n");
- printf ("char *name;\n");
- printf ("sh_arg_type arg[3];\n");
- printf ("sh_nibble_type nibbles[4];\n");
- printf ("} sh_opcode_info;\n");
- printf ("#ifdef DEFINE_TABLE\n");
- printf ("sh_opcode_info sh_table[]={\n");
- for (p = tab; p->name; p++)
- {
- printf ("\n/* %s %-20s*/", p->code, p->name);
- think (p);
- }
- printf ("0};\n");
- printf ("#endif\n");
-}
-
-
-
-
-
-
/* Convert a string of 4 binary digits into an int */
static
@@ -1647,12 +1989,28 @@ expand_opcode (shift, val, i, s)
case '0':
case '1':
{
-
- int n = bton (s);
- if (n >= 0)
- {
- expand_opcode (shift - 4, val | (n << shift), i, s + 4);
- }
+ int m, mv;
+
+ val |= bton (s) << shift;
+ if (s[2] == '0' || s[2] == '1')
+ expand_opcode (shift - 4, val, i, s + 4);
+ else if (s[2] == 'N')
+ for (j = 0; j < 4; j++)
+ expand_opcode (shift - 4, val | (j << shift), i, s + 4);
+ else if (s[2] == 'x')
+ for (j = 0; j < 4; j += 2)
+ for (m = 0; m < 32; m++)
+ {
+ /* Ignore illegal nopy */
+ if ((m & 7) == 0 && m != 0)
+ continue;
+ mv = m & 3 | (m & 4) << 2 | (m & 8) << 3 | (m & 16) << 4;
+ expand_opcode (shift - 4, val | mv | (j << shift), i,
+ s + 4);
+ }
+ else if (s[2] == 'y')
+ for (j = 0; j < 2; j++)
+ expand_opcode (shift - 4, val | (j << shift), i, s + 4);
break;
}
case 'n':
@@ -1663,6 +2021,37 @@ expand_opcode (shift, val, i, s)
}
break;
+ case 'M':
+ /* A1, A0,X0,X1,Y0,Y1,M0,A1G,M1,M1G */
+ for (j = 5; j < 16; j++)
+ if (j != 6)
+ expand_opcode (shift - 4, val | (j << shift), i, s + 4);
+ break;
+ case 'G':
+ /* A1G, A0G: */
+ for (j = 13; j <= 15; j +=2)
+ expand_opcode (shift - 4, val | (j << shift), i, s + 4);
+ break;
+ case 's':
+ /* System registers mach, macl, pr: */
+ for (j = 0; j < 3; j++)
+ expand_opcode (shift - 4, val | (j << shift), i, s + 4);
+ /* System registers fpul, fpscr/dsr, a0, x0, x1, y0, y1: */
+ for (j = 5; j < 12; j++)
+ expand_opcode (shift - 4, val | (j << shift), i, s + 4);
+ break;
+ case 'X':
+ case 'a':
+ val |= bton (s) << shift;
+ for (j = 0; j < 16; j += 8)
+ expand_opcode (shift - 4, val | (j << shift), i, s + 4);
+ break;
+ case 'Y':
+ case 'A':
+ val |= bton (s) << shift;
+ for (j = 0; j < 8; j += 4)
+ expand_opcode (shift - 4, val | (j << shift), i, s + 4);
+ break;
default:
for (j = 0; j < (1 << (shift + 4)); j++)
@@ -1677,18 +2066,22 @@ expand_opcode (shift, val, i, s)
statement entry. */
static void
-dumptable ()
+dumptable (name, size, start)
+ char *name;
+ int size;
+ int start;
{
int lump = 256;
int online = 16;
- int i = 0;
+ int i = start;
- while (i < 1 << 16)
+ printf ("unsigned char %s[%d]={\n", name, size);
+ while (i < start + size)
{
int j = 0;
- printf ("unsigned char sh_jump_table%x[%d]={\n", i, lump);
+ printf ("/* 0x%x */\n", i);
while (j < lump)
{
@@ -1705,37 +2098,46 @@ dumptable ()
printf ("\n");
}
i += j;
- printf ("};\n");
}
-
+ printf ("};\n");
}
static void
-filltable ()
+filltable (p)
+ op *p;
{
- op *p;
- int index = 1;
+ static int index = 1;
sorttab ();
- for (p = tab; p->name; p++)
+ for (; p->name; p++)
{
p->index = index++;
expand_opcode (12, 0, p->index, p->code);
}
}
+/* Table already contais all the switch case tags for 16-bit opcode double
+ data transfer (ddt) insns, and the switch case tag for processing parallel
+ processing insns (ppi) for code 0xf800 (ppi nopx nopy). Copy the
+ latter tag to represent all combinations of ppi with ddt. */
static void
-gensim ()
+ppi_moves ()
{
- op *p;
- int j;
+ int i;
- printf ("{\n");
- printf (" switch (jump_table[iword]) {\n");
+ for (i = 0xf000; i < 0xf400; i++)
+ if (table[i])
+ table[i + 0x800] = table[0xf800];
+}
- for (p = tab; p->name; p++)
+static void
+gensim_caselist (p)
+ op *p;
+{
+ for (; p->name; p++)
{
+ int j;
int sextbit = -1;
int needm = 0;
int needn = 0;
@@ -1752,6 +2154,8 @@ gensim ()
{
case '0':
case '1':
+ s += 2;
+ break;
case '.':
s += 4;
break;
@@ -1760,11 +2164,43 @@ gensim ()
needn = 1;
s += 4;
break;
+ case 'N':
+ printf (" int n = (((iword >> 8) - 2) & 0x3) + 2;\n");
+ s += 2;
+ break;
+ case 'x':
+ printf (" int n = ((iword >> 9) & 1) + 4;\n");
+ needn = 1;
+ s += 2;
+ break;
+ case 'y':
+ printf (" int n = ((iword >> 8) & 1) + 4;\n");
+ needn = 1;
+ s += 2;
+ break;
case 'm':
- printf (" int m = (iword >>4) & 0xf;\n");
needm = 1;
+ case 's':
+ case 'M':
+ case 'G':
+ printf (" int m = (iword >>4) & 0xf;\n");
s += 4;
-
+ break;
+ case 'X':
+ printf (" int m = ((iword >> 7) & 1) + 8;\n");
+ s += 2;
+ break;
+ case 'a':
+ printf (" int m = 7 - ((iword >> 6) & 2);\n");
+ s += 2;
+ break;
+ case 'Y':
+ printf (" int m = ((iword >> 6) & 1) + 10;\n");
+ s += 2;
+ break;
+ case 'A':
+ printf (" int m = 7 - ((iword >> 5) & 2);\n");
+ s += 2;
break;
case 'i':
@@ -1820,6 +2256,8 @@ gensim ()
for (r = p->refs; *r; r++)
{
if (*r == '0') printf(" CREF(0);\n");
+ if (*r == '8') printf(" CREF(8);\n");
+ if (*r == '9') printf(" CREF(9);\n");
if (*r == 'n') printf(" CREF(n);\n");
if (*r == 'm') printf(" CREF(m);\n");
}
@@ -1849,20 +2287,30 @@ gensim ()
printf (" break;\n");
printf (" }\n");
}
+}
+
+static void
+gensim ()
+{
+ printf ("{\n");
+ printf (" switch (jump_table[iword]) {\n");
+
+ gensim_caselist (tab);
+ gensim_caselist (movsxy_tab);
+
printf (" default:\n");
printf (" {\n");
- printf (" saved_state.asregs.exception = SIGILL;\n");
+ printf (" RAISE_EXCEPTION (SIGILL);\n");
printf (" }\n");
printf (" }\n");
printf ("}\n");
}
-
static void
gendefines ()
{
op *p;
- filltable();
+ filltable (tab);
for (p = tab; p->name; p++)
{
char *s = p->name;
@@ -1880,6 +2328,234 @@ gendefines ()
}
}
+static int ppi_index;
+
+/* Take an ppi code, expand all varying fields in it and fill all the
+ right entries in 'table' with the opcode index. */
+
+static void
+expand_ppi_code (val, i, s)
+ int val;
+ int i;
+ char *s;
+{
+ int j;
+
+ for (;;)
+ {
+ switch (s[0])
+ {
+ /* The last eight bits are disregarded for the switch table. */
+ case 'm':
+ case 'x':
+ case '.':
+ table[val] = i;
+ return;
+ case '0':
+ val += val;
+ s++;
+ break;
+ case '1':
+ val += val + 1;
+ s++;
+ break;
+ case 'i':
+ case 'e': case 'f':
+ val += val;
+ s++;
+ expand_ppi_code (val, i, s);
+ val++;
+ break;
+ case 'c':
+ val <<= 2;
+ s += 2;
+ val++;
+ expand_ppi_code (val, ppi_index++, s);
+ val++;
+ expand_ppi_code (val, i, s);
+ val++;
+ break;
+ }
+ }
+}
+
+static void
+ppi_filltable ()
+{
+ op *p;
+ ppi_index = 1;
+
+ for (p = ppi_tab; p->name; p++)
+ {
+ p->index = ppi_index++;
+ expand_ppi_code (0, p->index, p->code);
+ }
+}
+
+static void
+ppi_gensim ()
+{
+ op *p = ppi_tab;
+
+ printf ("#define DSR_MASK_G 0x80\n");
+ printf ("#define DSR_MASK_Z 0x40\n");
+ printf ("#define DSR_MASK_N 0x20\n");
+ printf ("#define DSR_MASK_V 0x10\n");
+ printf ("\n");
+ printf ("#define COMPUTE_OVERFLOW do {\\\n");
+ printf (" overflow = res_grd != SIGN32 (res) ? DSR_MASK_V : 0; \\\n");
+ printf (" if (overflow && S) \\\n");
+ printf (" { \\\n");
+ printf (" if (res_grd & 0x80) \\\n");
+ printf (" { \\\n");
+ printf (" res = 0x80000000; \\\n");
+ printf (" res_grd |= 0xff; \\\n");
+ printf (" } \\\n");
+ printf (" else \\\n");
+ printf (" { \\\n");
+ printf (" res = 0x7fffffff; \\\n");
+ printf (" res_grd &= ~0xff; \\\n");
+ printf (" } \\\n");
+ printf (" overflow = 0; \\\n");
+ printf (" } \\\n");
+ printf ("} while (0)\n");
+ printf ("\n");
+ printf ("#define ADD_SUB_GE \\\n");
+ printf (" (greater_equal = ~(overflow << 3 & res_grd) & DSR_MASK_G)\n");
+ printf ("\n");
+ printf ("static void\n");
+ printf ("ppi_insn (iword)\n");
+ printf (" int iword;\n");
+ printf ("{\n");
+ printf (" static char e_tab[] = { 8, 9, 10, 5};\n");
+ printf (" static char f_tab[] = {10, 11, 8, 5};\n");
+ printf (" static char x_tab[] = { 8, 9, 7, 5};\n");
+ printf (" static char y_tab[] = {10, 11, 12, 14};\n");
+ printf (" static char g_tab[] = {12, 14, 7, 5};\n");
+ printf (" static char u_tab[] = { 8, 10, 7, 5};\n");
+ printf ("\n");
+ printf (" int z;\n");
+ printf (" int res, res_grd;\n");
+ printf (" int carry, overflow, greater_equal;\n");
+ printf ("\n");
+ printf (" switch (ppi_table[iword >> 8]) {\n");
+
+ for (; p->name; p++)
+ {
+ int shift, j;
+ int cond = 0;
+ int havedecl = 0;
+
+ char *s = p->code;
+
+ printf (" /* %s %s */\n", p->name, p->code);
+ printf (" case %d: \n", p->index);
+
+ printf (" {\n");
+ for (shift = 16; *s; )
+ {
+ switch (*s)
+ {
+ case 'i':
+ printf (" int i = (iword >> 4) & 0x7f;\n");
+ s += 6;
+ break;
+ case 'e':
+ case 'f':
+ case 'x':
+ case 'y':
+ case 'g':
+ case 'u':
+ shift -= 2;
+ printf (" int %c = %c_tab[(iword >> %d) & 3];\n",
+ *s, *s, shift);
+ havedecl = 1;
+ s += 2;
+ break;
+ case 'c':
+ printf (" if ((((iword >> 8) ^ DSR) & 1) == 0)\n");
+ printf ("\tbreak;\n");
+ printf (" }\n");
+ printf (" case %d: \n", p->index + 1);
+ printf (" {\n");
+ cond = 1;
+ case '0':
+ case '1':
+ case '.':
+ shift -= 2;
+ s += 2;
+ break;
+ case 'z':
+ if (havedecl)
+ printf ("\n");
+ printf (" z = iword & 0xf;\n");
+ havedecl = 2;
+ s += 4;
+ break;
+ }
+ }
+ if (havedecl == 1)
+ printf ("\n");
+ else if (havedecl == 2)
+ printf (" {\n");
+ for (j = 0; j < MAX_NR_STUFF; j++)
+ {
+ if (p->stuff[j])
+ {
+ printf (" %s%s\n",
+ (havedecl == 2 ? " " : ""),
+ p->stuff[j]);
+ }
+ }
+ if (havedecl == 2)
+ printf (" }\n");
+ if (cond)
+ {
+ printf (" if (iword & 0x200)\n");
+ printf (" goto assign_z;\n");
+ }
+ printf (" break;\n");
+ printf (" }\n");
+ }
+
+ printf (" default:\n");
+ printf (" {\n");
+ printf (" RAISE_EXCEPTION (SIGILL);\n");
+ printf (" return;\n");
+ printf (" }\n");
+ printf (" }\n");
+ printf (" DSR &= ~0xf1;\n");
+ printf (" if (res || res_grd)\n");
+ printf (" DSR |= greater_equal | res_grd >> 2 & DSR_MASK_N | overflow;\n");
+ printf (" else\n");
+ printf (" DSR |= DSR_MASK_Z | overflow;\n");
+ printf (" assign_dc:\n");
+ printf (" switch (DSR >> 1 & 7)\n");
+ printf (" {\n");
+ printf (" case 0: /* Carry Mode */\n");
+ printf (" DSR |= carry;\n");
+ printf (" case 1: /* Negative Value Mode */\n");
+ printf (" DSR |= res_grd >> 7 & 1;\n");
+ printf (" case 2: /* Zero Value Mode */\n");
+ printf (" DSR |= DSR >> 6 & 1;\n");
+ printf (" case 3: /* Overflow mode\n");
+ printf (" DSR |= overflow >> 4;\n");
+ printf (" case 4: /* Signed Greater Than Mode */\n");
+ printf (" DSR |= DSR >> 7 & 1;\n");
+ printf (" case 4: /* Signed Greater Than Or Equal Mode */\n");
+ printf (" DSR |= greater_equal >> 7;\n");
+ printf (" }\n");
+ printf (" assign_z:\n");
+ printf (" if (0xa05f >> z & 1)\n");
+ printf (" {\n");
+ printf (" RAISE_EXCEPTION (SIGILL);\n");
+ printf (" return;\n");
+ printf (" }\n");
+ printf (" DSP_R (z) = res;\n");
+ printf (" DSP_GRD (z) = res_grd;\n");
+ printf ("}\n");
+}
+
int
main (ac, av)
int ac;
@@ -1913,19 +2589,31 @@ main (ac, av)
}
else if (strcmp (av[1], "-s") == 0)
{
- filltable ();
- dumptable ();
+ filltable (tab);
+ dumptable ("sh_jump_table", 1 << 16, 0);
+
+ memset (table, 0, sizeof table);
+ filltable (movsxy_tab);
+ ppi_moves ();
+ dumptable ("sh_dsp_table", 1 << 12, 0xf000);
+ memset (table, 0, sizeof table);
+ ppi_filltable ();
+ dumptable ("ppi_table", 1 << 8, 0);
}
else if (strcmp (av[1], "-x") == 0)
{
- filltable ();
+ filltable (tab);
+ filltable (movsxy_tab);
gensim ();
}
+ else if (strcmp (av[1], "-p") == 0)
+ {
+ ppi_filltable ();
+ ppi_gensim ();
+ }
}
else
- {
- genopc ();
- }
+ fprintf (stderr, "Opcode table generation no longer supported.\n");
return 0;
}
generated by cgit v1.1 at 2024-12-27 09:32:32 +0000