diff options
Diffstat (limited to 'sim/m68hc11')
| -rw-r--r-- | sim/m68hc11/ChangeLog | 59 | ||||
| -rw-r--r-- | sim/m68hc11/Makefile.in | 12 | ||||
| -rw-r--r-- | sim/m68hc11/gencode.c | 835 | ||||
| -rw-r--r-- | sim/m68hc11/interp.c | 294 | ||||
| -rw-r--r-- | sim/m68hc11/m68hc11_sim.c | 581 | ||||
| -rw-r--r-- | sim/m68hc11/sim-main.h | 130 |
6 files changed, 1710 insertions, 201 deletions
diff --git a/sim/m68hc11/ChangeLog b/sim/m68hc11/ChangeLog index 265a6d3..04e0fb6 100644 --- a/sim/m68hc11/ChangeLog +++ b/sim/m68hc11/ChangeLog @@ -1,5 +1,64 @@ 2001-05-20 Stephane Carrez <Stephane.Carrez@worldnet.fr> + * Makefile.in (M68HC11_OBJS): Add m68hc12int.o. + (m68hc12int.c): Generate using gencode -m6812. + (m68hc11int.c): Likewise with -m6811. + + * gencode.c (m6811_opcode_patterns): New patterns for 68HC12. + (m6811_page1_opcodes): Remove duplicate entries. + (m6811_page2_opcodes): Likewise. + (m6811_page3_opcodes): Likewise. + (m6811_page4_opcodes): Likewise. + (m6812_page1_opcodes): New table for 68HC12 instructions. + (m6812_page2_opcodes): Likewise. + (gen_fetch_operands): New modes [] and &[] for 68HC12 operands. + (gen_save_result): Likewise. + (gen_interpreter_for_table): Handle 68HC11 and 68HC12 opcodes. + (cmp_opcode): New function for opcode comparision. + (prepare_table): Sort the opcodes. + (gen_interpreter): Prepare all the tables and generate either + a 68HC11 or a 68HC12 simulator. + (main): New options -m6811 and -m6812. + + * m68hc11_sim.c (cpu_single_step): Use pointer to cpu interpretor. + (cpu_special): Simulation of some 68HC12 instructions. + (cpu_exg): New function. + (cpu_dbcc): Likewise. + (cpu_fetch_relbranch16): Likewise. + (cpu_push_all): Push according to 68HC11 or 68HC12. + (cpu_move16): Likewise. + (cpu_move8): Likewise. + (cpu_get_indexed_operand16): Likewise. + (cpu_get_indexed_operand8): Likewise. + (cpu_get_indexed_operand_addr): Likewise. + (cpu_set_reg, cpu_set_dst_reg, cpu_get_src_reg, cpu_get_reg): Likewise. + (cpu_reset): Setup INIT register according to architecture. + + * sim-main.h (M6811_Special): Add 68HC12 specific instructions. + (_sim_cpu): Keep track of the cpu being simulated. + (cpu_get_tmp3, cpu_get_tmp2, cpu_set_tmp3, cpu_set_tmp2): New. + (cpu_m68hc11_push_uintxx): Rename of cpu_push_uintxx. + (cpu_m68hc11_pop_uint8): Likewise. + (cpu_m68hc12_push_uintxx): New functions for 68HC12. + (cpu_m68hc12_pop_uintxx): Likewise. + (cpu_exg, cpu_dbcc, cpu_move8, cpu_move16): Likewise, + (cpu_fetch_relbranch16): Likewise. + (cpu_interp_m6811): Rename of cpu_interp. + (cpu_interp_m6812): New function. + * interp.c (free_state): New function. + (dev_list_68hc12): New table. + (sim_board_reset): Reset depending on the cpu (HC11 or HC12). + (sim_hw_configure): New function. + (sim_prepare_for_program): New function. + (sim_open): Use above new functions. + (sim_close): Call free_state(). + (sim_info): Print info according to cpu. + (sim_create_inferior): Use sim_prepare_for_program. + (sim_do_command): Configure the hardware after a change of the + architecture. + +2001-05-20 Stephane Carrez <Stephane.Carrez@worldnet.fr> + * dv-m68hc11sio.c (m68hc11sio_tx_poll): Always check for pending interrupts. * interrupts.c (interrupts_process): Keep track of the last number diff --git a/sim/m68hc11/Makefile.in b/sim/m68hc11/Makefile.in index 6cbf400..d2fe599 100644 --- a/sim/m68hc11/Makefile.in +++ b/sim/m68hc11/Makefile.in @@ -1,5 +1,5 @@ # Makefile template for Configure for the 68HC11 sim library. -# Copyright (C) 1999, 2000 Free Software Foundation, Inc. +# Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc. # Written by Cygnus Support. # # This program is free software; you can redistribute it and/or modify @@ -18,7 +18,8 @@ ## COMMON_PRE_CONFIG_FRAG -M68HC11_OBJS = interp.o m68hc11int.o emulos.o interrupts.o m68hc11_sim.o +M68HC11_OBJS = interp.o m68hc11int.o m68hc12int.o \ + emulos.o interrupts.o m68hc11_sim.o # List of main object files for `run'. SIM_RUN_OBJS = nrun.o @@ -49,10 +50,13 @@ INCLUDE = $(srcdir)/../../include/callback.h \ ## COMMON_POST_CONFIG_FRAG m68hc11int.c: gencode - ./gencode > $@ + ./gencode -m6811 > $@ + +m68hc12int.c: gencode + ./gencode -m6812 > $@ gencode: gencode.c - $(CC_FOR_BUILD) $(BUILD_CFLAGS) -o gencode $< + $(CC_FOR_BUILD) $(BUILD_CFLAGS) -o gencode gencode.c interp.o: interp.c $(INCLUDE) diff --git a/sim/m68hc11/gencode.c b/sim/m68hc11/gencode.c index a5bff86..8c32e3e 100644 --- a/sim/m68hc11/gencode.c +++ b/sim/m68hc11/gencode.c @@ -1,5 +1,5 @@ -/* gencode.c -- Motorola 68hc11 Emulator Generator - Copyright 1999, 2000 Free Software Foundation, Inc. +/* gencode.c -- Motorola 68HC11 & 68HC12 Emulator Generator + Copyright 1999, 2000, 2001 Free Software Foundation, Inc. Written by Stephane Carrez (stcarrez@worldnet.fr) This file is part of GDB, GAS, and the GNU binutils. @@ -32,16 +32,20 @@ with this program; if not, write to the Free Software Foundation, Inc., #define M6811_ZC_BIT M6811_Z_BIT|M6811_C_BIT #define M6811_NZ_BIT M6811_N_BIT|M6811_Z_BIT #define M6811_NZV_BIT M6811_N_BIT|M6811_Z_BIT|M6811_V_BIT +#define M6811_NZC_BIT M6811_N_BIT|M6811_Z_BIT|M6811_C_BIT #define M6811_NVC_BIT M6811_N_BIT|M6811_V_BIT|M6811_C_BIT #define M6811_ZVC_BIT M6811_Z_BIT|M6811_V_BIT|M6811_C_BIT #define M6811_NZVC_BIT M6811_ZVC_BIT|M6811_N_BIT #define M6811_HNZVC_BIT M6811_NZVC_BIT|M6811_H_BIT +#define M6811_HNVC_BIT M6811_NVC_BIT|M6811_H_BIT +#define M6811_VC_BIT M6811_V_BIT|M6811_C_BIT /* Flags when the insn only changes some CCR flags. */ #define CHG_NONE 0,0,0 #define CHG_Z 0,0,M6811_Z_BIT #define CHG_C 0,0,M6811_C_BIT #define CHG_ZVC 0,0,M6811_ZVC_BIT +#define CHG_NZC 0,0,M6811_NZC_BIT #define CHG_NZV 0,0,M6811_NZV_BIT #define CHG_NZVC 0,0,M6811_NZVC_BIT #define CHG_HNZVC 0,0,M6811_HNZVC_BIT @@ -55,6 +59,7 @@ with this program; if not, write to the Free Software Foundation, Inc., #define CLR_V_CHG_NZ 0,M6811_V_BIT,M6811_NZ_BIT #define CLR_V_CHG_ZVC 0,M6811_V_BIT,M6811_ZVC_BIT #define CLR_N_CHG_ZVC 0,M6811_N_BIT,M6811_ZVC_BIT /* Used by lsr */ +#define CLR_VC_CHG_NZ 0,M6811_VC_BIT,M6811_NZ_BIT /* The insn sets some flags. */ #define SET_I M6811_I_BIT,0,0 @@ -62,9 +67,11 @@ with this program; if not, write to the Free Software Foundation, Inc., #define SET_V M6811_V_BIT,0,0 #define SET_Z_CLR_NVC M6811_Z_BIT,M6811_NVC_BIT,0 #define SET_C_CLR_V_CHG_NZ M6811_C_BIT,M6811_V_BIT,M6811_NZ_BIT +#define SET_Z_CHG_HNVC M6811_Z_BIT,0,M6811_HNVC_BIT #define _M 0xff +static int cpu_type; struct m6811_opcode_pattern { @@ -87,6 +94,7 @@ struct m6811_opcode_pattern m6811_opcode_patterns[] = { { "movtst16", "dst16 = src16", "cpu_ccr_update_tst16 (proc, dst16)" }, { "mov8", "dst8 = src8" }, { "mov16", "dst16 = src16" }, + { "lea16", "dst16 = addr" }, /* Conditional branches. 'addr' is the address of the branch. */ { "bra", "cpu_set_pc (proc, addr)" }, @@ -121,7 +129,8 @@ struct m6811_opcode_pattern m6811_opcode_patterns[] = { "if (((~src8) & dst8) == 0)\n@ cpu_set_pc (proc, addr)" }, - { "rts", "addr = cpu_pop_uint16 (proc); cpu_set_pc (proc, addr); cpu_return(proc)" }, + { "rts11", "addr = cpu_m68hc11_pop_uint16 (proc); cpu_set_pc (proc, addr); cpu_return(proc)" }, + { "rts12", "addr = cpu_m68hc12_pop_uint16 (proc); cpu_set_pc (proc, addr); cpu_return(proc)" }, { "mul16", "dst16 = ((uint16) src8 & 0x0FF) * ((uint16) dst8 & 0x0FF)", "cpu_set_ccr_C (proc, src8 & 0x80)" }, @@ -203,11 +212,12 @@ dst16 = dst16 + src16", 0 }, { "ins16", "dst16 = src16 + 1" }, { "des16", "dst16 = src16 - 1" }, - { "jsr16", "cpu_push_uint16 (proc, cpu_get_pc (proc)); cpu_call (proc, addr)"}, + { "jsr_11_16", "cpu_m68hc11_push_uint16 (proc, cpu_get_pc (proc)); cpu_call (proc, addr)"}, + { "jsr_12_16", "cpu_m68hc12_push_uint16 (proc, cpu_get_pc (proc)); cpu_call (proc, addr)"}, /* xgdx and xgdx patterns. Flags are not changed. */ { "xgdxy16", "dst16 = cpu_get_d (proc); cpu_set_d (proc, src16)"}, - { "stop", ""}, + { "stop", "cpu_special (proc, M6811_STOP)"}, /* tsx, tsy, txs, tys don't affect the flags. Sp value is corrected by +/- 1. */ @@ -218,7 +228,7 @@ dst16 = dst16 + src16", 0 }, { "abxy16","dst16 = dst16 + (uint16) src8"}, /* After 'daa', the Z flag is undefined. Mark it as changed. */ - { "daa8", "" }, + { "daa8", "cpu_special (proc, M6811_DAA)" }, { "nop", 0 }, @@ -260,7 +270,8 @@ cpu_set_ccr_Z (proc, dst16 == 0);\n\ { "sei", 0, "cpu_set_ccr_I (proc, 1)" }, /* Some special instructions are implemented by 'cpu_special'. */ - { "rti", "cpu_special (proc, M6811_RTI)" }, + { "rti11", "cpu_special (proc, M6811_RTI)" }, + { "rti12", "cpu_special (proc, M6812_RTI)" }, { "wai", "cpu_special (proc, M6811_WAI)" }, { "test", "cpu_special (proc, M6811_TEST)" }, { "swi", "cpu_special (proc, M6811_SWI)" }, @@ -268,7 +279,45 @@ cpu_set_ccr_Z (proc, dst16 == 0);\n\ { "page2", "cpu_page2_interp (proc)", 0 }, { "page3", "cpu_page3_interp (proc)", 0 }, - { "page4", "cpu_page4_interp (proc)", 0 } + { "page4", "cpu_page4_interp (proc)", 0 }, + + /* 68HC12 special instructions. */ + { "bgnd", "cpu_special (proc, M6812_BGND)" }, + { "call8", "cpu_special (proc, M6812_CALL)" }, + { "dbcc8", "cpu_dbcc (proc)" }, + { "ediv", "cpu_special (proc, M6812_EDIV)" }, + { "emul", "{ uint32 src1 = (uint32) cpu_get_d (proc);\ + uint32 src2 = (uint32) cpu_get_y (proc);\ + src1 *= src2;\ + cpu_set_d (proc, src1);\ + cpu_set_y (proc, src1 >> 16);\ + cpu_set_ccr_Z (proc, src1 == 0);\ + cpu_set_ccr_C (proc, src1 & 0x08000);\ + cpu_set_ccr_N (proc, src1 & 0x80000000);}" }, + { "emuls", "cpu_special (proc, M6812_EMULS)" }, + { "mem", "cpu_special (proc, M6812_MEM)" }, + { "rtc", "cpu_special (proc, M6812_RTC)" }, + { "emacs", "cpu_special (proc, M6812_EMACS)" }, + { "idivs", "cpu_special (proc, M6812_IDIVS)" }, + { "edivs", "cpu_special (proc, M6812_EDIVS)" }, + { "exg8", "cpu_exg (proc, src8)" }, + { "move8", "cpu_move8 (proc, op)" }, + { "move16","cpu_move16 (proc, op)" }, + + { "max8", "cpu_ccr_update_sub8 (proc, dst8 - src8, dst8, src8);\ + if (dst8 < src8) dst8 = src8" }, + { "min8", "cpu_ccr_update_sub8 (proc, dst8 - src8, dst8, src8);\ + if (dst8 > src8) dst8 = src8" }, + { "max16", "cpu_ccr_update_sub16 (proc, dst16 - src16, dst16, src16);\ + if (dst16 < src16) dst16 = src16" }, + { "min16", "cpu_ccr_update_sub16 (proc, dst16 - src16, dst16, src16);\ + if (dst16 > src16) dst16 = src16" }, + + { "rev", "cpu_special (proc, M6812_REV);" }, + { "revw", "cpu_special (proc, M6812_REVW);" }, + { "wav", "cpu_special (proc, M6812_WAV);" }, + { "tbl8", "cpu_special (proc, M6812_ETBL);" }, + { "tbl16", "cpu_special (proc, M6812_ETBL);" } }; /* Definition of an opcode of the 68HC11. */ @@ -306,14 +355,13 @@ struct m6811_opcode_def * (y)->a src8 = (IND, Y) a = dst8 * ()->b src8 = (EXT) b = dst8 */ -const struct m6811_opcode_def m6811_page1_opcodes[] = { +struct m6811_opcode_def m6811_page1_opcodes[] = { { "test", 0, 0, 1, 0x00, 5, _M, CHG_NONE }, { "nop", 0, 0, 1, 0x01, 2, 2, CHG_NONE }, { "idiv", "x,d->x", "idiv16", 1, 0x02, 3, 41, CLR_V_CHG_ZC}, { "fdiv", "x,d->x", "fdiv16", 1, 0x03, 3, 41, CHG_ZVC}, { "lsrd", "d->d", "lsr16", 1, 0x04, 3, 3, CLR_N_CHG_ZVC }, { "asld", "d->d", "lsl16", 1, 0x05, 3, 3, CHG_NZVC }, - { "lsld", "d->d", "lsl16", 1, 0x05, 3, 3, CHG_NZVC }, { "tap", "a->ccr", "mov8", 1, 0x06, 2, 2, CHG_ALL}, { "tpa", "ccr->a", "mov8", 1, 0x07, 2, 2, CHG_NONE }, { "inx", "x->x", "inc16", 1, 0x08, 3, 3, CHG_Z }, @@ -349,9 +397,7 @@ const struct m6811_opcode_def m6811_page1_opcodes[] = { { "bhi", "r", 0, 2, 0x22, 3, 3, CHG_NONE }, { "bls", "r", 0, 2, 0x23, 3, 3, CHG_NONE }, { "bcc", "r", 0, 2, 0x24, 3, 3, CHG_NONE }, - { "bhs", "r", 0, 2, 0x24, 3, 3, CHG_NONE }, { "bcs", "r", 0, 2, 0x25, 3, 3, CHG_NONE }, - { "blo", "r", 0, 2, 0x25, 3, 3, CHG_NONE }, { "bne", "r", 0, 2, 0x26, 3, 3, CHG_NONE }, { "beq", "r", 0, 2, 0x27, 3, 3, CHG_NONE }, { "bvc", "r", 0, 2, 0x28, 3, 3, CHG_NONE }, @@ -372,9 +418,9 @@ const struct m6811_opcode_def m6811_page1_opcodes[] = { { "psha", "a->(sp)", "mov8", 1, 0x36, 3, 3, CHG_NONE }, { "pshb", "b->(sp)", "mov8", 1, 0x37, 3, 3, CHG_NONE }, { "pulx", "(sp)->x", "mov16", 1, 0x38, 5, 5, CHG_NONE }, - { "rts", 0, 0, 1, 0x39, 5, 5, CHG_NONE }, + { "rts", 0, "rts11", 1, 0x39, 5, 5, CHG_NONE }, { "abx", "b,x->x", "abxy16", 1, 0x3a, 3, 3, CHG_NONE }, - { "rti", 0, 0, 1, 0x3b, 12, 12, CHG_ALL}, + { "rti", 0, "rti11", 1, 0x3b, 12, 12, CHG_ALL}, { "pshx", "x->(sp)", "mov16", 1, 0x3c, 4, 4, CHG_NONE }, { "mul", "b,a->d", "mul16", 1, 0x3d, 3, 10, CHG_C }, { "wai", 0, 0, 1, 0x3e, 14, _M, CHG_NONE }, @@ -386,7 +432,6 @@ const struct m6811_opcode_def m6811_page1_opcodes[] = { { "rora", "a->a", "ror8", 1, 0x46, 2, 2, CHG_NZVC }, { "asra", "a->a", "asr8", 1, 0x47, 2, 2, CHG_NZVC }, { "asla", "a->a", "lsl8", 1, 0x48, 2, 2, CHG_NZVC }, - { "lsla", "a->a", "lsl8", 1, 0x48, 2, 2, CHG_NZVC }, { "rola", "a->a", "rol8", 1, 0x49, 2, 2, CHG_NZVC }, { "deca", "a->a", "dec8", 1, 0x4a, 2, 2, CHG_NZV }, { "inca", "a->a", "inc8", 1, 0x4c, 2, 2, CHG_NZV }, @@ -398,7 +443,6 @@ const struct m6811_opcode_def m6811_page1_opcodes[] = { { "rorb", "b->b", "ror8", 1, 0x56, 2, 2, CHG_NZVC }, { "asrb", "b->b", "asr8", 1, 0x57, 2, 2, CHG_NZVC }, { "aslb", "b->b", "lsl8", 1, 0x58, 2, 2, CHG_NZVC }, - { "lslb", "b->b", "lsl8", 1, 0x58, 2, 2, CHG_NZVC }, { "rolb", "b->b", "rol8", 1, 0x59, 2, 2, CHG_NZVC }, { "decb", "b->b", "dec8", 1, 0x5a, 2, 2, CHG_NZV }, { "incb", "b->b", "inc8", 1, 0x5c, 2, 2, CHG_NZV }, @@ -410,7 +454,6 @@ const struct m6811_opcode_def m6811_page1_opcodes[] = { { "ror", "(x)->(x)", "ror8", 2, 0x66, 6, 6, CHG_NZVC }, { "asr", "(x)->(x)", "asr8", 2, 0x67, 6, 6, CHG_NZVC }, { "asl", "(x)->(x)", "lsl8", 2, 0x68, 6, 6, CHG_NZVC }, - { "lsl", "(x)->(x)", "lsl8", 2, 0x68, 6, 6, CHG_NZVC }, { "rol", "(x)->(x)", "rol8", 2, 0x69, 6, 6, CHG_NZVC }, { "dec", "(x)->(x)", "dec8", 2, 0x6a, 6, 6, CHG_NZV }, { "inc", "(x)->(x)", "inc8", 2, 0x6c, 6, 6, CHG_NZV }, @@ -423,7 +466,6 @@ const struct m6811_opcode_def m6811_page1_opcodes[] = { { "ror", "()->()", "ror8", 3, 0x76, 6, 6, CHG_NZVC }, { "asr", "()->()", "asr8", 3, 0x77, 6, 6, CHG_NZVC }, { "asl", "()->()", "lsl8", 3, 0x78, 6, 6, CHG_NZVC }, - { "lsl", "()->()", "lsl8", 3, 0x78, 6, 6, CHG_NZVC }, { "rol", "()->()", "rol8", 3, 0x79, 6, 6, CHG_NZVC }, { "dec", "()->()", "dec8", 3, 0x7a, 6, 6, CHG_NZV }, { "inc", "()->()", "inc8", 3, 0x7c, 6, 6, CHG_NZV }, @@ -442,8 +484,7 @@ const struct m6811_opcode_def m6811_page1_opcodes[] = { { "oraa", "#,a->a", "or8", 2, 0x8a, 2, 2, CLR_V_CHG_NZ }, { "adda", "#,a->a", "add8", 2, 0x8b, 2, 2, CHG_HNZVC }, { "cmpx", "#,x", "sub16", 3, 0x8c, 4, 4, CHG_NZVC }, - { "cpx", "#,x", "sub16", 3, 0x8c, 4, 4, CHG_NZVC }, - { "bsr", "r", "jsr16", 2, 0x8d, 6, 6, CHG_NONE }, + { "bsr", "r", "jsr_11_16", 2, 0x8d, 6, 6, CHG_NONE }, { "lds", "#->sp", "movtst16", 3, 0x8e, 3, 3, CLR_V_CHG_NZ }, { "xgdx", "x->x", "xgdxy16", 1, 0x8f, 3, 3, CHG_NONE }, { "suba", "*,a->a", "sub8", 2, 0x90, 3, 3, CHG_NZVC }, @@ -459,8 +500,7 @@ const struct m6811_opcode_def m6811_page1_opcodes[] = { { "oraa", "*,a->a", "or8", 2, 0x9a, 3, 3, CLR_V_CHG_NZ }, { "adda", "*,a->a", "add8", 2, 0x9b, 3, 3, CHG_HNZVC }, { "cmpx", "*,x", "sub16", 2, 0x9c, 5, 5, CHG_NZVC }, - { "cpx", "*,x", "sub16", 2, 0x9c, 5, 5, CHG_NZVC }, - { "jsr", "*", "jsr16", 2, 0x9d, 5, 5, CHG_NONE }, + { "jsr", "*", "jsr_11_16", 2, 0x9d, 5, 5, CHG_NONE }, { "lds", "*->sp", "movtst16", 2, 0x9e, 4, 4, CLR_V_CHG_NZ }, { "sts", "sp->*", "movtst16", 2, 0x9f, 4, 4, CLR_V_CHG_NZ }, { "suba", "(x),a->a", "sub8", 2, 0xa0, 4, 4, CHG_NZVC }, @@ -476,8 +516,7 @@ const struct m6811_opcode_def m6811_page1_opcodes[] = { { "oraa", "(x),a->a", "or8", 2, 0xaa, 4, 4, CLR_V_CHG_NZ }, { "adda", "(x),a->a", "add8", 2, 0xab, 4, 4, CHG_HNZVC }, { "cmpx", "(x),x", "sub16", 2, 0xac, 6, 6, CHG_NZVC }, - { "cpx", "(x),x", "sub16", 2, 0xac, 6, 6, CHG_NZVC }, - { "jsr", "&(x)", "jsr16", 2, 0xad, 6, 6, CHG_NONE }, + { "jsr", "&(x)", "jsr_11_16", 2, 0xad, 6, 6, CHG_NONE }, { "lds", "(x)->sp", "movtst16", 2, 0xae, 5, 5, CLR_V_CHG_NZ }, { "sts", "sp->(x)", "movtst16", 2, 0xaf, 5, 5, CLR_V_CHG_NZ }, { "suba", "(),a->a", "sub8", 3, 0xb0, 4, 4, CHG_NZVC }, @@ -493,8 +532,7 @@ const struct m6811_opcode_def m6811_page1_opcodes[] = { { "oraa", "(),a->a", "or8", 3, 0xba, 4, 4, CLR_V_CHG_NZ }, { "adda", "(),a->a", "add8", 3, 0xbb, 4, 4, CHG_HNZVC }, { "cmpx", "(),x", "sub16", 3, 0xbc, 5, 5, CHG_NZVC }, - { "cpx", "(),x", "sub16", 3, 0xbc, 5, 5, CHG_NZVC }, - { "jsr", "&()", "jsr16", 3, 0xbd, 6, 6, CHG_NONE }, + { "jsr", "&()", "jsr_11_16", 3, 0xbd, 6, 6, CHG_NONE }, { "lds", "()->sp", "movtst16", 3, 0xbe, 5, 5, CLR_V_CHG_NZ }, { "sts", "sp->()", "movtst16", 3, 0xbf, 5, 5, CLR_V_CHG_NZ }, { "subb", "#,b->b", "sub8", 2, 0xc0, 2, 2, CHG_NZVC }, @@ -571,7 +609,7 @@ const struct m6811_opcode_def m6811_page1_opcodes[] = { * Pattern -----------+ +--------------- Min # cycles * Size -----------------+ +-------------------- Opcode */ -const struct m6811_opcode_def m6811_page2_opcodes[] = { +struct m6811_opcode_def m6811_page2_opcodes[] = { { "iny", "y->y", "inc16", 2, 0x08, 4, 4, CHG_Z }, { "dey", "y->y", "dec16", 2, 0x09, 4, 4, CHG_Z }, { "bset", "(y),#->(y)","or8", 4, 0x1c, 8, 8, CLR_V_CHG_NZ }, @@ -589,7 +627,6 @@ const struct m6811_opcode_def m6811_page2_opcodes[] = { { "ror", "(y)->(y)", "ror8", 3, 0x66, 7, 7, CHG_NZVC }, { "asr", "(y)->(y)", "asr8", 3, 0x67, 7, 7, CHG_NZVC }, { "asl", "(y)->(y)", "lsl8", 3, 0x68, 7, 7, CHG_NZVC }, - { "lsl", "(y)->(y)", "lsl8", 3, 0x68, 7, 7, CHG_NZVC }, { "rol", "(y)->(y)", "rol8", 3, 0x69, 7, 7, CHG_NZVC }, { "dec", "(y)->(y)", "dec8", 3, 0x6a, 7, 7, CHG_NZV }, { "inc", "(y)->(y)", "inc8", 3, 0x6c, 7, 7, CHG_NZV }, @@ -597,10 +634,8 @@ const struct m6811_opcode_def m6811_page2_opcodes[] = { { "jmp", "&(y)", "bra", 3, 0x6e, 4, 4, CHG_NONE }, { "clr", "->(y)", "clr8", 3, 0x6f, 7, 7, SET_Z_CLR_NVC }, { "cmpy", "#,y", "sub16", 4, 0x8c, 5, 5, CHG_NZVC }, - { "cpy", "#,y", "sub16", 4, 0x8c, 5, 5, CHG_NZVC }, { "xgdy", "y->y", "xgdxy16", 2, 0x8f, 4, 4, CHG_NONE }, { "cmpy", "*,y", "sub16", 3, 0x9c, 6, 6, CHG_NZVC }, - { "cpy", "*,y", "sub16", 3, 0x9c, 6, 6, CHG_NZVC }, { "suba", "(y),a->a", "sub8", 3, 0xa0, 5, 5, CHG_NZVC }, { "cmpa", "(y),a", "sub8", 3, 0xa1, 5, 5, CHG_NZVC }, { "sbca", "(y),a->a", "sbc8", 3, 0xa2, 5, 5, CHG_NZVC }, @@ -614,12 +649,10 @@ const struct m6811_opcode_def m6811_page2_opcodes[] = { { "oraa", "(y),a->a", "or8", 3, 0xaa, 5, 5, CLR_V_CHG_NZ }, { "adda", "(y),a->a", "add8", 3, 0xab, 5, 5, CHG_HNZVC }, { "cmpy", "(y),y", "sub16", 3, 0xac, 7, 7, CHG_NZVC }, - { "cpy", "(y),y", "sub16", 3, 0xac, 7, 7, CHG_NZVC }, - { "jsr", "&(y)", "jsr16", 3, 0xad, 6, 6, CHG_NONE }, + { "jsr", "&(y)", "jsr_11_16", 3, 0xad, 6, 6, CHG_NONE }, { "lds", "(y)->sp", "movtst16", 3, 0xae, 6, 6, CLR_V_CHG_NZ }, { "sts", "sp->(y)", "movtst16", 3, 0xaf, 6, 6, CLR_V_CHG_NZ }, { "cmpy", "(),y", "sub16", 4, 0xbc, 7, 7, CHG_NZVC }, - { "cpy", "(),y", "sub16", 4, 0xbc, 7, 7, CHG_NZVC }, { "ldy", "#->y", "movtst16", 4, 0xce, 4, 4, CLR_V_CHG_NZ }, { "ldy", "*->y", "movtst16", 3, 0xde, 5, 5, CLR_V_CHG_NZ }, { "sty", "y->*", "movtst16", 3, 0xdf, 5, 5, CLR_V_CHG_NZ }, @@ -651,17 +684,12 @@ const struct m6811_opcode_def m6811_page2_opcodes[] = { * Pattern -----------+ +--------------- Min # cycles * Size -----------------+ +-------------------- Opcode */ -const struct m6811_opcode_def m6811_page3_opcodes[] = { +struct m6811_opcode_def m6811_page3_opcodes[] = { { "cmpd", "#,d", "sub16", 4, 0x83, 5, 5, CHG_NZVC }, - { "cpd", "#,d", "sub16", 4, 0x83, 5, 5, CHG_NZVC }, { "cmpd", "*,d", "sub16", 3, 0x93, 6, 6, CHG_NZVC }, - { "cpd", "*,d", "sub16", 3, 0x93, 6, 6, CHG_NZVC }, { "cmpd", "(x),d", "sub16", 3, 0xa3, 7, 7, CHG_NZVC }, - { "cpd", "(x),d", "sub16", 3, 0xa3, 7, 7, CHG_NZVC }, { "cmpy", "(x),y", "sub16", 3, 0xac, 7, 7, CHG_NZVC }, - { "cpy", "(x),y", "sub16", 3, 0xac, 7, 7, CHG_NZVC }, { "cmpd", "(),d", "sub16", 4, 0xb3, 7, 7, CHG_NZVC }, - { "cpd", "(),d", "sub16", 4, 0xb3, 7, 7, CHG_NZVC }, { "ldy", "(x)->y", "movtst16", 3, 0xee, 6, 6, CLR_V_CHG_NZ }, { "sty", "y->(x)", "movtst16", 3, 0xef, 6, 6, CLR_V_CHG_NZ } }; @@ -674,17 +702,440 @@ const struct m6811_opcode_def m6811_page3_opcodes[] = { * Pattern -----------+ +--------------- Min # cycles * Size -----------------+ +-------------------- Opcode */ -const struct m6811_opcode_def m6811_page4_opcodes[] = { +struct m6811_opcode_def m6811_page4_opcodes[] = { { "syscall", "", "syscall", 2, 0x03, 6, 6, CHG_NONE }, { "cmpd", "(y),d", "sub16", 3, 0xa3, 7, 7, CHG_NZVC }, - { "cpd", "(y),d", "sub16", 3, 0xa3, 7, 7, CHG_NZVC }, { "cmpx", "(y),x", "sub16", 3, 0xac, 7, 7, CHG_NZVC }, - { "cpx", "(y),x", "sub16", 3, 0xac, 7, 7, CHG_NZVC }, { "ldx", "(y)->x", "movtst16", 3, 0xee, 6, 6, CLR_V_CHG_NZ }, { "stx", "x->(y)", "movtst16", 3, 0xef, 6, 6, CLR_V_CHG_NZ } }; -void fatal_error (const struct m6811_opcode_def*, const char*); +/* 68HC12 opcodes */ +/* + * { "dex", "x->x", "dec16", 1, 0x00, 5, _M, CHG_NONE }, + * Name -+ +----- Insn CCR changes + * Operands ---+ +------------ Max # cycles + * Pattern -----------+ +--------------- Min # cycles + * Size -----------------+ +-------------------- Opcode + */ +struct m6811_opcode_def m6812_page1_opcodes[] = { + { "adca", "#,a->a", "adc8", 2, 0x89, 1, 1, CHG_HNZVC }, + { "adca", "*,a->a", "adc8", 2, 0x99, 3, 3, CHG_HNZVC }, + { "adca", "(),a->a", "adc8", 3, 0xb9, 3, 3, CHG_HNZVC }, + { "adca", "[],a->a", "adc8", 2, 0xa9, 3, 3, CHG_HNZVC }, + + { "adcb", "#,b->b", "adc8", 2, 0xc9, 1, 1, CHG_HNZVC }, + { "adcb", "*,b->b", "adc8", 3, 0xd9, 3, 3, CHG_HNZVC }, + { "adcb", "(),b->b", "adc8", 3, 0xf9, 3, 3, CHG_HNZVC }, + { "adcb", "[],b->b", "adc8", 2, 0xe9, 3, 3, CHG_HNZVC }, + + { "adda", "#,a->a", "add8", 2, 0x8b, 1, 1, CHG_HNZVC }, + { "adda", "*,a->a", "add8", 3, 0x9b, 3, 3, CHG_HNZVC }, + { "adda", "(),a->a", "add8", 3, 0xbb, 3, 3, CHG_HNZVC }, + { "adda", "[],a->a", "add8", 2, 0xab, 3, 3, CHG_HNZVC }, + + { "addb", "#,b->b", "add8", 2, 0xcb, 1, 1, CHG_HNZVC }, + { "addb", "*,b->b", "add8", 3, 0xdb, 3, 3, CHG_HNZVC }, + { "addb", "(),b->b", "add8", 3, 0xfb, 3, 3, CHG_HNZVC }, + { "addb", "[],b->b", "add8", 2, 0xeb, 3, 3, CHG_HNZVC }, + + { "addd", "#,d->d", "add16", 3, 0xc3, 2, 2, CHG_NZVC }, + { "addd", "*,d->d", "add16", 2, 0xd3, 3, 3, CHG_NZVC }, + { "addd", "(),d->d", "add16", 3, 0xf3, 3, 3, CHG_NZVC }, + { "addd", "[],d->d", "add16", 2, 0xe3, 3, 3, CHG_NZVC }, + + { "anda", "#,a->a", "and8", 2, 0x84, 1, 1, CLR_V_CHG_NZ }, + { "anda", "*,a->a", "and8", 2, 0x94, 3, 3, CLR_V_CHG_NZ }, + { "anda", "(),a->a", "and8", 3, 0xb4, 3, 3, CLR_V_CHG_NZ }, + { "anda", "[],a->a", "and8", 2, 0xa4, 3, 3, CLR_V_CHG_NZ }, + + { "andb", "#,b->b", "and8", 2, 0xc4, 1, 1, CLR_V_CHG_NZ }, + { "andb", "*,b->b", "and8", 2, 0xd4, 3, 3, CLR_V_CHG_NZ }, + { "andb", "(),b->b", "and8", 3, 0xf4, 3, 3, CLR_V_CHG_NZ }, + { "andb", "[],b->b", "and8", 2, 0xe4, 3, 3, CLR_V_CHG_NZ }, + + { "andcc", "#,ccr->ccr", "and8", 2, 0x10, 1, 1, CHG_ALL }, + + { "asl", "()->()", "lsl8", 3, 0x78, 4, 4, CHG_NZVC }, + { "asl", "[]->[]", "lsl8", 2, 0x68, 3, 3, CHG_NZVC }, + + { "asla", "a->a", "lsl8", 1, 0x48, 1, 1, CHG_NZVC }, + { "aslb", "b->b", "lsl8", 1, 0x58, 1, 1, CHG_NZVC }, + { "asld", "d->d", "lsl16", 1, 0x59, 1, 1, CHG_NZVC }, + + { "asr", "()->()", "asr8", 3, 0x77, 4, 4, CHG_NZVC }, + { "asr", "[]->[]", "asr8", 2, 0x67, 3, 3, CHG_NZVC }, + + { "asra", "a->a", "asr8", 1, 0x47, 1, 1, CHG_NZVC }, + { "asrb", "b->b", "asr8", 1, 0x57, 1, 1, CHG_NZVC }, + + { "bcc", "r", 0, 2, 0x24, 1, 3, CHG_NONE }, + + { "bclr", "*,#->*", "bclr8", 3, 0x4d, 4, 4, CLR_V_CHG_NZ }, + { "bclr", "(),#->()", "bclr8", 4, 0x1d, 4, 4, CLR_V_CHG_NZ }, + { "bclr", "[],#->[]", "bclr8", 3, 0x0d, 4, 4, CLR_V_CHG_NZ }, + + { "bcs", "r", 0, 2, 0x25, 1, 3, CHG_NONE }, + { "beq", "r", 0, 2, 0x27, 1, 3, CHG_NONE }, + { "bge", "r", 0, 2, 0x2c, 1, 3, CHG_NONE }, + + { "bgnd", 0, 0, 1, 0x00, 5, 5, CHG_NONE }, + + { "bgt", "r", 0, 2, 0x2e, 1, 3, CHG_NONE }, + { "bhi", "r", 0, 2, 0x22, 1, 3, CHG_NONE }, + + { "bita", "#,a", "and8", 2, 0x85, 1, 1, CLR_V_CHG_NZ }, + { "bita", "*,a", "and8", 2, 0x95, 3, 3, CLR_V_CHG_NZ }, + { "bita", "(),a", "and8", 3, 0xb5, 3, 3, CLR_V_CHG_NZ }, + { "bita", "[],a", "and8", 2, 0xa5, 3, 3, CLR_V_CHG_NZ }, + + { "bitb", "#,b", "and8", 2, 0xc5, 1, 1, CLR_V_CHG_NZ }, + { "bitb", "*,b", "and8", 2, 0xd5, 3, 3, CLR_V_CHG_NZ }, + { "bitb", "(),b", "and8", 3, 0xf5, 3, 3, CLR_V_CHG_NZ }, + { "bitb", "[],b", "and8", 2, 0xe5, 3, 3, CLR_V_CHG_NZ }, + + { "ble", "r", 0, 2, 0x2f, 1, 3, CHG_NONE }, + { "bls", "r", 0, 2, 0x23, 1, 3, CHG_NONE }, + { "blt", "r", 0, 2, 0x2d, 1, 3, CHG_NONE }, + { "bmi", "r", 0, 2, 0x2b, 1, 3, CHG_NONE }, + { "bne", "r", 0, 2, 0x26, 1, 3, CHG_NONE }, + { "bpl", "r", 0, 2, 0x2a, 1, 3, CHG_NONE }, + { "bra", "r", 0, 2, 0x20, 1, 3, CHG_NONE }, + + { "brclr", "*,#,r", "brclr8", 4, 0x4f, 4, 4, CHG_NONE }, + { "brclr", "(),#,r", "brclr8", 5, 0x1f, 5, 5, CHG_NONE }, + { "brclr", "[],#,r", "brclr8", 4, 0x0f, 4, 4, CHG_NONE }, + + { "brn", "r", "nop", 2, 0x21, 1, 3, CHG_NONE }, + + { "brset", "*,#,r", "brset8", 4, 0x4e, 4, 4, CHG_NONE }, + { "brset", "(),#,r", "brset8", 5, 0x1e, 5, 5, CHG_NONE }, + { "brset", "[],#,r", "brset8", 4, 0x0e, 4, 4, CHG_NONE }, + + { "bset", "*,#->*", "or8", 3, 0x4c, 4, 4, CLR_V_CHG_NZ }, + { "bset", "(),#->()", "or8", 4, 0x1c, 4, 4, CLR_V_CHG_NZ }, + { "bset", "[],#->[]", "or8", 3, 0x0c, 4, 4, CLR_V_CHG_NZ }, + + { "bsr", "r", "jsr_12_16", 2, 0x07, 4, 4, CHG_NONE }, + + { "bvc", "r", 0, 2, 0x28, 1, 3, CHG_NONE }, + { "bvs", "r", 0, 2, 0x29, 1, 3, CHG_NONE }, + + { "call", "()", "call8", 4, 0x4a, 8, 8, CHG_NONE }, + { "call", "[]", "call8", 2, 0x4b, 8, 8, CHG_NONE }, + + { "clr", "->()", "clr8", 3, 0x79, 3, 3, SET_Z_CLR_NVC }, + { "clr", "->[]", "clr8", 2, 0x69, 2, 2, SET_Z_CLR_NVC }, + + { "clra", "->a", "clr8", 1, 0x87, 1, 1, SET_Z_CLR_NVC }, + { "clrb", "->b", "clr8", 1, 0xc7, 1, 1, SET_Z_CLR_NVC }, + + { "cpa", "#,a", "sub8", 2, 0x81, 1, 1, CHG_NZVC }, + { "cpa", "*,a", "sub8", 2, 0x91, 3, 3, CHG_NZVC }, + { "cpa", "(),a", "sub8", 3, 0xb1, 3, 3, CHG_NZVC }, + { "cpa", "[],a", "sub8", 2, 0xa1, 3, 3, CHG_NZVC }, + + { "cpb", "#,b", "sub8", 2, 0xc1, 1, 1, CHG_NZVC }, + { "cpb", "*,b", "sub8", 2, 0xd1, 3, 3, CHG_NZVC }, + { "cpb", "(),b", "sub8", 3, 0xf1, 3, 3, CHG_NZVC }, + { "cpb", "[],b", "sub8", 2, 0xe1, 3, 3, CHG_NZVC }, + + { "com", "()->()", "com8", 3, 0x71, 4, 4, SET_C_CLR_V_CHG_NZ }, + { "com", "[]->[]", "com8", 2, 0x61, 3, 3, SET_C_CLR_V_CHG_NZ }, + + { "coma", "a->a", "com8", 1, 0x41, 1, 1, SET_C_CLR_V_CHG_NZ }, + { "comb", "b->b", "com8", 1, 0x51, 1, 1, SET_C_CLR_V_CHG_NZ }, + + { "cpd", "#,d", "sub16", 3, 0x8c, 2, 2, CHG_NZVC }, + { "cpd", "*,d", "sub16", 2, 0x9c, 3, 3, CHG_NZVC }, + { "cpd", "(),d", "sub16", 3, 0xbc, 3, 3, CHG_NZVC }, + { "cpd", "[],d", "sub16", 2, 0xac, 3, 3, CHG_NZVC }, + + { "cps", "#,sp", "sub16", 3, 0x8f, 2, 2, CHG_NZVC }, + { "cps", "*,sp", "sub16", 2, 0x9f, 3, 3, CHG_NZVC }, + { "cps", "(),sp", "sub16", 3, 0xbf, 3, 3, CHG_NZVC }, + { "cps", "[],sp", "sub16", 2, 0xaf, 3, 3, CHG_NZVC }, + + { "cpx", "#,x", "sub16", 3, 0x8e, 2, 2, CHG_NZVC }, + { "cpx", "*,x", "sub16", 2, 0x9e, 3, 3, CHG_NZVC }, + { "cpx", "(),x", "sub16", 3, 0xbe, 3, 3, CHG_NZVC }, + { "cpx", "[],x", "sub16", 2, 0xae, 3, 3, CHG_NZVC }, + + { "cpy", "#,y", "sub16", 3, 0x8d, 2, 2, CHG_NZVC }, + { "cpy", "*,y", "sub16", 2, 0x9d, 3, 3, CHG_NZVC }, + { "cpy", "(),y", "sub16", 3, 0xbd, 3, 3, CHG_NZVC }, + { "cpy", "[],y", "sub16", 2, 0xad, 3, 3, CHG_NZVC }, + + /* dbeq, dbne, ibeq, ibne, tbeq, tbne */ + { "dbeq", 0, "dbcc8", 3, 0x04, 3, 3, CHG_NONE }, + + { "dec", "()->()", "dec8", 3, 0x73, 4, 4, CHG_NZV }, + { "dec", "[]->[]", "dec8", 2, 0x63, 3, 3, CHG_NZV }, + + { "deca", "a->a", "dec8", 1, 0x43, 1, 1, CHG_NZV }, + { "decb", "b->b", "dec8", 1, 0x53, 1, 1, CHG_NZV }, + + { "dex", "x->x", "dec16", 1, 0x09, 1, 1, CHG_Z }, + { "dey", "y->y", "dec16", 1, 0x03, 1, 1, CHG_Z }, + + { "ediv", 0, 0, 1, 0x11, 11, 11, CHG_NZVC }, + { "emul", 0, 0, 1, 0x13, 3, 3, CHG_NZC }, + + { "eora", "#,a->a", "eor8", 2, 0x88, 1, 1, CLR_V_CHG_NZ }, + { "eora", "*,a->a", "eor8", 2, 0x98, 3, 3, CLR_V_CHG_NZ }, + { "eora", "(),a->a", "eor8", 3, 0xb8, 3, 3, CLR_V_CHG_NZ }, + { "eora", "[],a->a", "eor8", 2, 0xa8, 3, 3, CLR_V_CHG_NZ }, + + { "eorb", "#,b->b", "eor8", 2, 0xc8, 1, 1, CLR_V_CHG_NZ }, + { "eorb", "*,b->b", "eor8", 2, 0xd8, 3, 3, CLR_V_CHG_NZ }, + { "eorb", "(),b->b", "eor8", 3, 0xf8, 3, 3, CLR_V_CHG_NZ }, + { "eorb", "[],b->b", "eor8", 2, 0xe8, 3, 3, CLR_V_CHG_NZ }, + + /* exg, sex, tfr */ + { "exg", "#", "exg8", 2, 0xb7, 1, 1, CHG_NONE }, + + { "inc", "()->()", "inc8", 3, 0x72, 4, 4, CHG_NZV }, + { "inc", "[]->[]", "inc8", 2, 0x62, 3, 3, CHG_NZV }, + + { "inca", "a->a", "inc8", 1, 0x42, 1, 1, CHG_NZV }, + { "incb", "b->b", "inc8", 1, 0x52, 1, 1, CHG_NZV }, + + { "inx", "x->x", "inc16", 1, 0x08, 1, 1, CHG_Z }, + { "iny", "y->y", "inc16", 1, 0x02, 1, 1, CHG_Z }, + + { "jmp", "&()", "bra", 3, 0x06, 3, 3, CHG_NONE }, + { "jmp", "&[]", "bra", 2, 0x05, 3, 3, CHG_NONE }, + + { "jsr", "*", "jsr_12_16", 2, 0x17, 4, 4, CHG_NONE }, + { "jsr", "&()", "jsr_12_16", 3, 0x16, 4, 4, CHG_NONE }, + { "jsr", "&[]", "jsr_12_16", 2, 0x15, 4, 4, CHG_NONE }, + + { "ldaa", "#->a", "movtst8", 2, 0x86, 1, 1, CLR_V_CHG_NZ }, + { "ldaa", "*->a", "movtst8", 2, 0x96, 3, 3, CLR_V_CHG_NZ }, + { "ldaa", "()->a", "movtst8", 3, 0xb6, 3, 3, CLR_V_CHG_NZ }, + { "ldaa", "[]->a", "movtst8", 2, 0xa6, 3, 3, CLR_V_CHG_NZ }, + + { "ldab", "#->b", "movtst8", 2, 0xc6, 1, 1, CLR_V_CHG_NZ }, + { "ldab", "*->b", "movtst8", 2, 0xd6, 3, 3, CLR_V_CHG_NZ }, + { "ldab", "()->b", "movtst8", 3, 0xf6, 3, 3, CLR_V_CHG_NZ }, + { "ldab", "[]->b", "movtst8", 2, 0xe6, 3, 3, CLR_V_CHG_NZ }, + + { "ldd", "#->d", "movtst16", 3, 0xcc, 2, 2, CLR_V_CHG_NZ }, + { "ldd", "*->d", "movtst16", 2, 0xdc, 3, 3, CLR_V_CHG_NZ }, + { "ldd", "()->d", "movtst16", 3, 0xfc, 3, 3, CLR_V_CHG_NZ }, + { "ldd", "[]->d", "movtst16", 2, 0xec, 3, 3, CLR_V_CHG_NZ }, + + { "lds", "#->sp", "movtst16", 3, 0xcf, 2, 2, CLR_V_CHG_NZ }, + { "lds", "*->sp", "movtst16", 2, 0xdf, 3, 3, CLR_V_CHG_NZ }, + { "lds", "()->sp", "movtst16", 3, 0xff, 3, 3, CLR_V_CHG_NZ }, + { "lds", "[]->sp", "movtst16", 2, 0xef, 3, 3, CLR_V_CHG_NZ }, + + { "ldx", "#->x", "movtst16", 3, 0xce, 2, 2, CLR_V_CHG_NZ }, + { "ldx", "*->x", "movtst16", 2, 0xde, 3, 3, CLR_V_CHG_NZ }, + { "ldx", "()->x", "movtst16", 3, 0xfe, 3, 3, CLR_V_CHG_NZ }, + { "ldx", "[]->x", "movtst16", 2, 0xee, 3, 3, CLR_V_CHG_NZ }, + + { "ldy", "#->y", "movtst16", 3, 0xcd, 2, 2, CLR_V_CHG_NZ }, + { "ldy", "*->y", "movtst16", 2, 0xdd, 3, 3, CLR_V_CHG_NZ }, + { "ldy", "()->y", "movtst16", 3, 0xfd, 3, 3, CLR_V_CHG_NZ }, + { "ldy", "[]->y", "movtst16", 2, 0xed, 3, 3, CLR_V_CHG_NZ }, + + { "leas", "&[]->sp", "lea16", 2, 0x1b, 2, 2, CHG_NONE }, + { "leax", "&[]->x", "lea16", 2, 0x1a, 2, 2, CHG_NONE }, + { "leay", "&[]->y", "lea16", 2, 0x19, 2, 2, CHG_NONE }, + + { "lsr", "()->()", "lsr8", 3, 0x74, 4, 4, CLR_N_CHG_ZVC }, + { "lsr", "[]->[]", "lsr8", 2, 0x64, 3, 3, CLR_N_CHG_ZVC }, + + { "lsra", "a->a", "lsr8", 1, 0x44, 1, 1, CLR_N_CHG_ZVC }, + { "lsrb", "b->b", "lsr8", 1, 0x54, 1, 1, CLR_N_CHG_ZVC }, + { "lsrd", "d->d", "lsr16", 1, 0x49, 1, 1, CLR_N_CHG_ZVC }, + + { "mem", 0, 0, 1, 0x01, 5, 5, CHG_HNZVC }, + + { "mul", "b,a->d", "mul16", 1, 0x12, 3, 3, CHG_C }, + + { "neg", "()->()", "neg8", 3, 0x70, 4, 4, CHG_NZVC }, + { "neg", "[]->[]", "neg8", 2, 0x60, 3, 3, CHG_NZVC }, + + { "nega", "a->a", "neg8", 1, 0x40, 1, 1, CHG_NZVC }, + { "negb", "b->b", "neg8", 1, 0x50, 1, 1, CHG_NZVC }, + + { "nop", "", "nop", 1, 0xa7, 1, 1, CHG_NONE }, + + { "oraa", "#,a->a", "or8", 2, 0x8a, 1, 1, CLR_V_CHG_NZ }, + { "oraa", "*,a->a", "or8", 2, 0x9a, 3, 3, CLR_V_CHG_NZ }, + { "oraa", "(),a->a", "or8", 3, 0xba, 3, 3, CLR_V_CHG_NZ }, + { "oraa", "[],a->a", "or8", 2, 0xaa, 3, 3, CLR_V_CHG_NZ }, + + { "orab", "#,b->b", "or8", 2, 0xca, 1, 1, CLR_V_CHG_NZ }, + { "orab", "*,b->b", "or8", 2, 0xda, 3, 3, CLR_V_CHG_NZ }, + { "orab", "(),b->b", "or8", 3, 0xfa, 3, 3, CLR_V_CHG_NZ }, + { "orab", "[],b->b", "or8", 2, 0xea, 3, 3, CLR_V_CHG_NZ }, + + { "orcc", "#,ccr->ccr", "or8", 2, 0x14, 1, 1, CHG_ALL }, + + { "page2", 0, "page2", 1, 0x18, 0, 0, CHG_NONE }, + + { "psha", "a->(sp)", "mov8", 1, 0x36, 2, 2, CHG_NONE }, + { "pshb", "b->(sp)", "mov8", 1, 0x37, 2, 2, CHG_NONE }, + { "pshc", "ccr->(sp)", "mov8", 1, 0x39, 2, 2, CHG_NONE }, + { "pshd", "d->(sp)", "mov16", 1, 0x3b, 2, 2, CHG_NONE }, + { "pshx", "x->(sp)", "mov16", 1, 0x34, 2, 2, CHG_NONE }, + { "pshy", "y->(sp)", "mov16", 1, 0x35, 2, 2, CHG_NONE }, + + { "pula", "(sp)->a", "mov8", 1, 0x32, 3, 3, CHG_NONE }, + { "pulb", "(sp)->b", "mov8", 1, 0x33, 3, 3, CHG_NONE }, + { "pulc", "(sp)->ccr", "mov8", 1, 0x38, 3, 3, CHG_ALL }, + { "puld", "(sp)->d", "mov16", 1, 0x3a, 3, 3, CHG_NONE }, + { "pulx", "(sp)->x", "mov16", 1, 0x30, 3, 3, CHG_NONE }, + { "puly", "(sp)->y", "mov16", 1, 0x31, 3, 3, CHG_NONE }, + + { "rol", "()->()", "rol8", 3, 0x75, 4, 4, CHG_NZVC }, + { "rol", "[]->[]", "rol8", 2, 0x65, 3, 3, CHG_NZVC }, + + { "rola", "a->a", "rol8", 1, 0x45, 1, 1, CHG_NZVC }, + { "rolb", "b->b", "rol8", 1, 0x55, 1, 1, CHG_NZVC }, + + { "ror", "()->()", "ror8", 3, 0x76, 4, 4, CHG_NZVC }, + { "ror", "[]->[]", "ror8", 2, 0x66, 3, 3, CHG_NZVC }, + + { "rora", "a->a", "ror8", 1, 0x46, 1, 1, CHG_NZVC }, + { "rorb", "b->b", "ror8", 1, 0x56, 1, 1, CHG_NZVC }, + + { "rtc", 0, 0, 1, 0x0a, 6, 6, CHG_NONE }, + { "rti", 0, "rti12", 1, 0x0b, 8, 10, CHG_ALL}, + { "rts", 0, "rts12", 1, 0x3d, 5, 5, CHG_NONE }, + + { "sbca", "#,a->a", "sbc8", 2, 0x82, 1, 1, CHG_NZVC }, + { "sbca", "*,a->a", "sbc8", 2, 0x92, 3, 3, CHG_NZVC }, + { "sbca", "(),a->a", "sbc8", 3, 0xb2, 3, 3, CHG_NZVC }, + { "sbca", "[],a->a", "sbc8", 2, 0xa2, 3, 3, CHG_NZVC }, + + { "sbcb", "#,b->b", "sbc8", 2, 0xc2, 1, 1, CHG_NZVC }, + { "sbcb", "*,b->b", "sbc8", 2, 0xd2, 3, 3, CHG_NZVC }, + { "sbcb", "(),b->b", "sbc8", 3, 0xf2, 3, 3, CHG_NZVC }, + { "sbcb", "[],b->b", "sbc8", 2, 0xe2, 3, 3, CHG_NZVC }, + + { "staa", "a->*", "movtst8", 2, 0x5a, 2, 2, CLR_V_CHG_NZ }, + { "staa", "a->()", "movtst8", 3, 0x7a, 3, 3, CLR_V_CHG_NZ }, + { "staa", "a->[]", "movtst8", 2, 0x6a, 2, 2, CLR_V_CHG_NZ }, + + { "stab", "b->*", "movtst8", 2, 0x5b, 2, 2, CLR_V_CHG_NZ }, + { "stab", "b->()", "movtst8", 3, 0x7b, 3, 3, CLR_V_CHG_NZ }, + { "stab", "b->[]", "movtst8", 2, 0x6b, 2, 2, CLR_V_CHG_NZ }, + + { "std", "d->*", "movtst16", 2, 0x5c, 2, 2, CLR_V_CHG_NZ }, + { "std", "d->()", "movtst16", 3, 0x7c, 3, 3, CLR_V_CHG_NZ }, + { "std", "d->[]", "movtst16", 2, 0x6c, 2, 2, CLR_V_CHG_NZ }, + + { "sts", "sp->*", "movtst16", 2, 0x5f, 2, 2, CLR_V_CHG_NZ }, + { "sts", "sp->()", "movtst16", 3, 0x7f, 3, 3, CLR_V_CHG_NZ }, + { "sts", "sp->[]", "movtst16", 2, 0x6f, 2, 2, CLR_V_CHG_NZ }, + + { "stx", "x->*", "movtst16", 2, 0x5e, 2, 2, CLR_V_CHG_NZ }, + { "stx", "x->()", "movtst16", 3, 0x7e, 3, 3, CLR_V_CHG_NZ }, + { "stx", "x->[]", "movtst16", 2, 0x6e, 2, 2, CLR_V_CHG_NZ }, + + { "sty", "y->*", "movtst16", 2, 0x5d, 2, 2, CLR_V_CHG_NZ }, + { "sty", "y->()", "movtst16", 3, 0x7d, 3, 3, CLR_V_CHG_NZ }, + { "sty", "y->[]", "movtst16", 2, 0x6d, 2, 2, CLR_V_CHG_NZ }, + + { "suba", "#,a->a", "sub8", 2, 0x80, 1, 1, CHG_NZVC }, + { "suba", "*,a->a", "sub8", 2, 0x90, 3, 3, CHG_NZVC }, + { "suba", "(),a->a", "sub8", 3, 0xb0, 3, 3, CHG_NZVC }, + { "suba", "[],a->a", "sub8", 2, 0xa0, 3, 3, CHG_NZVC }, + + { "subb", "#,b->b", "sub8", 2, 0xc0, 1, 1, CHG_NZVC }, + { "subb", "*,b->b", "sub8", 2, 0xd0, 3, 3, CHG_NZVC }, + { "subb", "(),b->b", "sub8", 3, 0xf0, 3, 3, CHG_NZVC }, + { "subb", "[],b->b", "sub8", 2, 0xe0, 3, 3, CHG_NZVC }, + + { "subd", "#,d->d", "sub16", 3, 0x83, 2, 2, CHG_NZVC }, + { "subd", "*,d->d", "sub16", 2, 0x93, 3, 3, CHG_NZVC }, + { "subd", "(),d->d", "sub16", 3, 0xb3, 3, 3, CHG_NZVC }, + { "subd", "[],d->d", "sub16", 2, 0xa3, 3, 3, CHG_NZVC }, + + { "swi", 0, 0, 1, 0x3f, 9, 9, CHG_NONE }, + + { "tst", "()", "tst8", 3, 0xf7, 3, 3, CLR_VC_CHG_NZ }, + { "tst", "[]", "tst8", 2, 0xe7, 3, 3, CLR_VC_CHG_NZ }, + + { "tsta", "a", "tst8", 1, 0x97, 1, 1, CLR_VC_CHG_NZ }, + { "tstb", "b", "tst8", 1, 0xd7, 1, 1, CLR_VC_CHG_NZ }, + + { "wai", 0, 0, 1, 0x3e, 8, _M, CHG_NONE } +}; + +struct m6811_opcode_def m6812_page2_opcodes[] = { + { "cba", "b,a", "sub8", 2, 0x17, 2, 2, CHG_NZVC }, + + /* After 'daa', the Z flag is undefined. Mark it as changed. */ + { "daa", 0, "daa8", 2, 0x07, 3, 3, CHG_NZVC }, + + { "edivs", 0, 0, 2, 0x14, 12, 12, CHG_NZVC }, + { "emacs", 0, 0, 2, 0x12, 13, 13, CHG_NZVC }, + + { "emaxd", "[],d->d", "max16", 3, 0x1a, 4, 4, CHG_NZVC }, + { "emaxm", "[],d->[]", "max16", 3, 0x1e, 4, 4, CHG_NZVC }, + { "emind", "[],d->d", "min16", 3, 0x1b, 4, 4, CHG_NZVC }, + { "eminm", "[],d->[]", "min16", 3, 0x1f, 4, 4, CHG_NZVC }, + + { "emuls", 0, 0, 2, 0x13, 3, 3, CHG_NZC }, + { "etbl", "[]", "tbl16", 3, 0x3f, 10, 10, CHG_NZC }, + { "fdiv", "x,d->x", "fdiv16", 2, 0x11, 12, 12, CHG_ZVC }, + { "idiv", "x,d->x", "idiv16", 2, 0x10, 12, 12, CLR_V_CHG_ZC }, + { "idivs", 0, 0, 2, 0x15, 12, 12, CHG_NZVC }, + + { "lbcc", "R", "bcc", 4, 0x24, 3, 4, CHG_NONE }, + { "lbcs", "R", "bcs", 4, 0x25, 3, 4, CHG_NONE }, + { "lbeq", "R", "beq", 4, 0x27, 3, 4, CHG_NONE }, + { "lbge", "R", "bge", 4, 0x2c, 3, 4, CHG_NONE }, + { "lbgt", "R", "bgt", 4, 0x2e, 3, 4, CHG_NONE }, + { "lbhi", "R", "bhi", 4, 0x22, 3, 4, CHG_NONE }, + { "lble", "R", "ble", 4, 0x2f, 3, 4, CHG_NONE }, + { "lbls", "R", "bls", 4, 0x23, 3, 4, CHG_NONE }, + { "lblt", "R", "blt", 4, 0x2d, 3, 4, CHG_NONE }, + { "lbmi", "R", "bmi", 4, 0x2b, 3, 4, CHG_NONE }, + { "lbne", "R", "bne", 4, 0x26, 3, 4, CHG_NONE }, + { "lbpl", "R", "bpl", 4, 0x2a, 3, 4, CHG_NONE }, + { "lbra", "R", "bra", 4, 0x20, 4, 4, CHG_NONE }, + { "lbrn", "R", "nop", 4, 0x21, 3, 3, CHG_NONE }, + { "lbvc", "R", "bvc", 4, 0x28, 3, 4, CHG_NONE }, + { "lbvs", "R", "bvs", 4, 0x29, 3, 4, CHG_NONE }, + + { "maxa", "[],a->a", "max8", 3, 0x18, 4, 4, CHG_NZVC }, + { "maxm", "[],a->[]", "max8", 3, 0x1c, 4, 4, CHG_NZVC }, + { "mina", "[],a->a", "min8", 3, 0x19, 4, 4, CHG_NZVC }, + { "minm", "[],a->[]", "min8", 3, 0x1d, 4, 4, CHG_NZVC }, + + { "movb", 0, "move8", 5, 0x0b, 4, 4, CHG_NONE }, + { "movb", 0, "move8", 4, 0x08, 4, 4, CHG_NONE }, + { "movb", 0, "move8", 6, 0x0c, 6, 6, CHG_NONE }, + { "movb", 0, "move8", 5, 0x09, 5, 5, CHG_NONE }, + { "movb", 0, "move8", 5, 0x0d, 5, 5, CHG_NONE }, + { "movb", 0, "move8", 4, 0x0a, 5, 5, CHG_NONE }, + + { "movw", 0, "move16", 6, 0x03, 5, 5, CHG_NONE }, + { "movw", 0, "move16", 5, 0x00, 4, 4, CHG_NONE }, + { "movw", 0, "move16", 6, 0x04, 6, 6, CHG_NONE }, + { "movw", 0, "move16", 5, 0x01, 5, 5, CHG_NONE }, + { "movw", 0, "move16", 5, 0x05, 5, 5, CHG_NONE }, + { "movw", 0, "move16", 4, 0x02, 5, 5, CHG_NONE }, + + { "rev", 0, 0, 2, 0x3a, _M, _M, CHG_HNZVC }, + { "revw", 0, 0, 2, 0x3b, _M, _M, CHG_HNZVC }, + { "sba", "b,a->a", "sub8", 2, 0x16, 2, 2, CHG_NZVC }, + + { "stop", 0, 0, 2, 0x3e, 2, 9, CHG_NONE }, + + { "tab", "a->b", "movtst8", 2, 0x0e, 2, 2, CLR_V_CHG_NZ }, + { "tba", "b->a", "movtst8", 2, 0x0f, 2, 2, CLR_V_CHG_NZ }, + + { "wav", 0, 0, 2, 0x3c, 8, _M, SET_Z_CHG_HNVC } +}; + +void fatal_error (const struct m6811_opcode_def*, const char*, ...); void print (FILE*, int, const char*,...); int gen_fetch_operands (FILE*, int, const struct m6811_opcode_def*, const char*); @@ -705,13 +1156,21 @@ static int current_insn_size = 0; /* Fatal error message and exit. This method is called when an inconsistency is detected in the generation table. */ void -fatal_error (const struct m6811_opcode_def *opcode, const char *msg) +fatal_error (const struct m6811_opcode_def *opcode, const char *msg, ...) { - fprintf (stderr, "Fatal error: %s\n", msg); + va_list argp; + + fprintf (stderr, "Fatal error: "); + va_start (argp, msg); + vfprintf (stderr, msg, argp); + va_end (argp); + fprintf (stderr, "\n"); if (opcode) { fprintf (stderr, "Opcode: 0x%02x %s %s\n", - opcode->insn_code, opcode->name, opcode->operands); + opcode->insn_code, + opcode->name ? opcode->name : "(null)", + opcode->operands ? opcode->operands : "(null)"); } exit (1); } @@ -794,6 +1253,7 @@ print (FILE *fp, int col, const char *msg, ...) x " X " y " Y " sp " SP " + pc " PC " * 68HC11 page0 memory pointer. Get 8-bits page0 offset from program, set up 'addr' local variable to refer to the location in page0. @@ -805,6 +1265,7 @@ print (FILE *fp, int col, const char *msg, ...) () 68HC11 extended address mode (global variable). Get 16-bits address from program and set 'addr'. Copy the 8/16-bits value pointed to by 'addr' in a 8/16-bits variable. + [] 68HC12 indexed addressing mode (sp) Pop Pop a 8/16-bits value from stack and set in a 8/16-bits variable. r Relative branch @@ -815,6 +1276,7 @@ print (FILE *fp, int col, const char *msg, ...) &(y) &() Similar to (x), (y) and () except that we don't read the value pointed to by 'addr' (ie, only 'addr' is setup). Used by jmp/jsr. + &[] Similar to [] but don't read the value pointed to by the address. , Operand separator. - End of input operands. @@ -920,6 +1382,12 @@ gen_fetch_operands (FILE *fp, int col, print (fp, col, "addr = cpu_fetch16 (proc);"); operands += 2; } + else if (strncmp (operands, "[]", 2) == 0) + { + current_insn_size += 1; + print (fp, col, "addr = cpu_get_indexed_operand_addr (proc, 0);"); + operands += 2; + } else { fatal_error (opcode, "Unknown operand"); @@ -960,10 +1428,20 @@ gen_fetch_operands (FILE *fp, int col, vars[cur_var], operand_size, operand_size); operands++; } - else if (strncmp (operands, "sp)", 3) == 0) + else if (strncmp (operands, "@)", 2) == 0) { - print (fp, col, "%s%s = cpu_pop_uint%s (proc);", + current_insn_size += 2; + print (fp, col, "addr = cpu_fetch16 (proc);"); + print (fp, col, "%s%s = memory_read%s (proc, addr);", vars[cur_var], operand_size, operand_size); + operands += 2; + } + else if (strncmp (operands, "sp)", 3) == 0) + { + print (fp, col, "%s%s = cpu_%s_pop_uint%s (proc);", + vars[cur_var], operand_size, + cpu_type == cpu6811 ? "m68hc11" : "m68hc12", + operand_size); operands += 3; } else @@ -972,6 +1450,55 @@ gen_fetch_operands (FILE *fp, int col, } break; + case '[': + if (cur_var >= 2) + fatal_error (opcode, "Too many locals"); + + if (addr_set) + fatal_error (opcode, "Wrong use of '[', 'addr' already used"); + + if (strncmp (operands, "]", 1) == 0) + { + addr_set = 1; + current_insn_size += 1; + print (fp, col, "addr = cpu_get_indexed_operand_addr (proc,0);"); + print (fp, col, "%s%s = memory_read%s (proc, addr);", + vars[cur_var], operand_size, operand_size); + operands += 1; + } + else if (strncmp (operands, "]", 1) == 0) + { + current_insn_size += 1; + print (fp, col, "%s%s = cpu_get_indexed_operand%s (proc,0);", + vars[cur_var], operand_size, operand_size); + operands += 1; + } + else + { + fatal_error (opcode, "Unknown operand"); + } + break; + + case '{': + if (cur_var >= 2) + fatal_error (opcode, "Too many locals"); + + if (addr_set) + fatal_error (opcode, "Wrong use of '{', 'addr' already used"); + + if (strncmp (operands, "}", 1) == 0) + { + current_insn_size += 1; + print (fp, col, "%s%s = cpu_get_indexed_operand%s (proc, 1);", + vars[cur_var], operand_size, operand_size); + operands += 1; + } + else + { + fatal_error (opcode, "Unknown operand"); + } + break; + case 's': if (cur_var >= 2) fatal_error (opcode, "Too many locals"); @@ -1008,6 +1535,15 @@ gen_fetch_operands (FILE *fp, int col, print (fp, col, "addr = cpu_fetch_relbranch (proc);"); break; + case 'R': + if (addr_set && cur_var != 2) + fatal_error (opcode, "Wrong use of 'R'"); + + addr_set = 1; + current_insn_size += 2; + print (fp, col, "addr = cpu_fetch_relbranch16 (proc);"); + break; + case '#': if (strcmp (operand_size, "8") == 0) { @@ -1063,6 +1599,7 @@ gen_fetch_operands (FILE *fp, int col, the result must be saved. If they were not used an input operand, 'addr' is computed (as in gen_fetch_operands()), and the result is saved. + [] 68HC12 indexed indirect (sp) Push Push the 8/16-bits result on the stack. */ void @@ -1171,7 +1708,8 @@ gen_save_result (FILE *fp, int col, } else if (strncmp (operands, "sp)", 3) == 0) { - print (fp, col, "cpu_push_uint%s (proc, dst%s);", + print (fp, col, "cpu_%s_push_uint%s (proc, dst%s);", + cpu_type == cpu6811 ? "m68hc11" : "m68hc12", operand_size, operand_size); operands += 3; result_size = operand_size; @@ -1182,6 +1720,41 @@ gen_save_result (FILE *fp, int col, } break; + case '[': + if (strncmp (operands, "]", 1) == 0) + { + if (addr_set == 0) + { + current_insn_size += 1; + print (fp, col, "addr = cpu_get_indexed_operand_addr (proc,0);"); + } + print (fp, col, "memory_write%s (proc, addr, dst%s);", + operand_size, operand_size); + operands++; + result_size = operand_size; + } + else + { + fatal_error (opcode, "Invalid operand"); + } + break; + + case '{': + if (strncmp (operands, "}", 1) == 0) + { + current_insn_size += 1; + print (fp, col, "addr = cpu_get_indexed_operand_addr (proc, 1);"); + print (fp, col, "memory_write%s (proc, addr, dst%s);", + operand_size, operand_size); + operands++; + result_size = operand_size; + } + else + { + fatal_error (opcode, "Invalid operand"); + } + break; + case 's': if (strncmp (operands, "p", 1) == 0) { @@ -1246,7 +1819,6 @@ find_opcode_pattern (const struct m6811_opcode_def *opcode) return 0; } - /* Generate the code for interpretation of instruction 'opcode'. */ void gen_interp (FILE *fp, int col, const struct m6811_opcode_def *opcode) @@ -1316,7 +1888,8 @@ gen_interpreter_for_table (FILE *fp, int col, int i; int init_size; - init_size = table == m6811_page1_opcodes ? 1 : 2; + init_size = table == m6811_page1_opcodes + || table == m6812_page1_opcodes? 1 : 2; /* Get the opcode and dispatch directly. */ print (fp, col, "op = cpu_fetch8 (proc);"); @@ -1334,10 +1907,13 @@ gen_interpreter_for_table (FILE *fp, int col, current_insn_size = init_size; gen_interp (fp, col, &table[i]); +#if 0 if (current_insn_size != table[i].insn_size) { - fatal_error (&table[i], "Insn size inconsistency"); + fatal_error (&table[i], "Insn size %ld inconsistent with %ld", + current_insn_size, table[i].insn_size); } +#endif } print (fp, col, "default:\n"); @@ -1421,58 +1997,139 @@ gen_function_close (FILE *fp) print (fp, 0, "}\n"); } +int +cmp_opcode (void* e1, void* e2) +{ + struct m6811_opcode_def* op1 = (struct m6811_opcode_def*) e1; + struct m6811_opcode_def* op2 = (struct m6811_opcode_def*) e2; + + return (int) (op1->insn_code) - (int) (op2->insn_code); +} + +void +prepare_table (struct m6811_opcode_def* table, int size) +{ + int i; + + qsort (table, size, sizeof (table[0]), cmp_opcode); + for (i = 1; i < size; i++) + { + if (table[i].insn_code == table[i-1].insn_code) + { + fprintf (stderr, "Two insns with code 0x%02x\n", + table[i].insn_code); + } + } +} + void gen_interpreter (FILE *fp) { int col = 0; + prepare_table (m6811_page1_opcodes, TABLE_SIZE (m6811_page1_opcodes)); + prepare_table (m6811_page2_opcodes, TABLE_SIZE (m6811_page2_opcodes)); + prepare_table (m6811_page3_opcodes, TABLE_SIZE (m6811_page3_opcodes)); + prepare_table (m6811_page4_opcodes, TABLE_SIZE (m6811_page4_opcodes)); + + prepare_table (m6812_page1_opcodes, TABLE_SIZE (m6812_page1_opcodes)); + prepare_table (m6812_page2_opcodes, TABLE_SIZE (m6812_page2_opcodes)); + /* Generate header of interpretor. */ print (fp, col, "/* File generated automatically by gencode. */\n"); print (fp, col, "#include \"sim-main.h\"\n\n"); - gen_cycle_table (fp, "cycles_page1", m6811_page1_opcodes, - TABLE_SIZE (m6811_page1_opcodes)); - gen_cycle_table (fp, "cycles_page2", m6811_page2_opcodes, - TABLE_SIZE (m6811_page2_opcodes)); - gen_cycle_table (fp, "cycles_page3", m6811_page3_opcodes, - TABLE_SIZE (m6811_page3_opcodes)); - gen_cycle_table (fp, "cycles_page4", m6811_page4_opcodes, - TABLE_SIZE (m6811_page4_opcodes)); - - /* Generate the page 2, 3 and 4 handlers. */ - gen_function_entry (fp, "static void\ncpu_page2_interp"); - gen_interpreter_for_table (fp, indent_level, - m6811_page2_opcodes, - TABLE_SIZE(m6811_page2_opcodes), - "cycles_page2"); - gen_function_close (fp); - - gen_function_entry (fp, "static void\ncpu_page3_interp"); - gen_interpreter_for_table (fp, indent_level, - m6811_page3_opcodes, - TABLE_SIZE(m6811_page3_opcodes), - "cycles_page3"); - gen_function_close (fp); + if (cpu_type & cpu6811) + { + gen_cycle_table (fp, "cycles_page1", m6811_page1_opcodes, + TABLE_SIZE (m6811_page1_opcodes)); + gen_cycle_table (fp, "cycles_page2", m6811_page2_opcodes, + TABLE_SIZE (m6811_page2_opcodes)); + gen_cycle_table (fp, "cycles_page3", m6811_page3_opcodes, + TABLE_SIZE (m6811_page3_opcodes)); + gen_cycle_table (fp, "cycles_page4", m6811_page4_opcodes, + TABLE_SIZE (m6811_page4_opcodes)); + + gen_function_entry (fp, "static void\ncpu_page3_interp"); + gen_interpreter_for_table (fp, indent_level, + m6811_page3_opcodes, + TABLE_SIZE(m6811_page3_opcodes), + "cycles_page3"); + gen_function_close (fp); - gen_function_entry (fp, "static void\ncpu_page4_interp"); - gen_interpreter_for_table (fp, indent_level, - m6811_page4_opcodes, - TABLE_SIZE(m6811_page4_opcodes), - "cycles_page4"); - gen_function_close (fp); - - /* Generate the interpretor entry point. */ - gen_function_entry (fp, "void\ncpu_interp"); - - gen_interpreter_for_table (fp, indent_level, m6811_page1_opcodes, - TABLE_SIZE(m6811_page1_opcodes), - "cycles_page1"); - gen_function_close (fp); + gen_function_entry (fp, "static void\ncpu_page4_interp"); + gen_interpreter_for_table (fp, indent_level, + m6811_page4_opcodes, + TABLE_SIZE(m6811_page4_opcodes), + "cycles_page4"); + gen_function_close (fp); + + /* Generate the page 2, 3 and 4 handlers. */ + gen_function_entry (fp, "static void\ncpu_page2_interp"); + gen_interpreter_for_table (fp, indent_level, + m6811_page2_opcodes, + TABLE_SIZE(m6811_page2_opcodes), + "cycles_page2"); + gen_function_close (fp); + + /* Generate the interpretor entry point. */ + gen_function_entry (fp, "void\ncpu_interp_m6811"); + + gen_interpreter_for_table (fp, indent_level, m6811_page1_opcodes, + TABLE_SIZE(m6811_page1_opcodes), + "cycles_page1"); + gen_function_close (fp); + } + else + { + gen_cycle_table (fp, "cycles_page1", m6812_page1_opcodes, + TABLE_SIZE (m6812_page1_opcodes)); + gen_cycle_table (fp, "cycles_page2", m6812_page2_opcodes, + TABLE_SIZE (m6812_page2_opcodes)); + + gen_function_entry (fp, "static void\ncpu_page2_interp"); + gen_interpreter_for_table (fp, indent_level, + m6812_page2_opcodes, + TABLE_SIZE(m6812_page2_opcodes), + "cycles_page2"); + gen_function_close (fp); + + /* Generate the interpretor entry point. */ + gen_function_entry (fp, "void\ncpu_interp_m6812"); + + gen_interpreter_for_table (fp, indent_level, m6812_page1_opcodes, + TABLE_SIZE(m6812_page1_opcodes), + "cycles_page1"); + gen_function_close (fp); + } +} + +void +usage (char* prog) +{ + fprintf (stderr, "Usage: %s {-m6811|-m6812}\n", prog); + exit (2); } int main (int argc, char *argv[]) { + int i; + + for (i = 1; i < argc; i++) + { + if (strcmp (argv[i], "-m6811") == 0) + cpu_type = cpu6811; + else if (strcmp (argv[i], "-m6812") == 0) + cpu_type = cpu6812; + else + { + usage (argv[0]); + } + } + if (cpu_type == 0) + usage (argv[0]); + gen_interpreter (stdout); if (fclose (stdout) != 0) { diff --git a/sim/m68hc11/interp.c b/sim/m68hc11/interp.c index f9de865..e043992 100644 --- a/sim/m68hc11/interp.c +++ b/sim/m68hc11/interp.c @@ -1,5 +1,5 @@ /* interp.c -- Simulator for Motorola 68HC11 - Copyright (C) 1999, 2000 Free Software Foundation, Inc. + Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc. Written by Stephane Carrez (stcarrez@worldnet.fr) This file is part of GDB, the GNU debugger. @@ -55,7 +55,7 @@ struct sim_info_list const char *device; }; -struct sim_info_list dev_list[] = { +struct sim_info_list dev_list_68hc11[] = { {"cpu", "/m68hc11"}, {"timer", "/m68hc11/m68hc11tim"}, {"sio", "/m68hc11/m68hc11sio"}, @@ -64,18 +64,48 @@ struct sim_info_list dev_list[] = { {0, 0} }; +struct sim_info_list dev_list_68hc12[] = { + {"cpu", "/m68hc12"}, + {"timer", "/m68hc12/m68hc12tim"}, + {"sio", "/m68hc12/m68hc12sio"}, + {"spi", "/m68hc12/m68hc12spi"}, + {"eeprom", "/m68hc12/m68hc12eepr"}, + {0, 0} +}; + +/* Cover function of sim_state_free to free the cpu buffers as well. */ + +static void +free_state (SIM_DESC sd) +{ + if (STATE_MODULES (sd) != NULL) + sim_module_uninstall (sd); + + sim_state_free (sd); +} + /* Give some information about the simulator. */ static void sim_get_info (SIM_DESC sd, char *cmd) { sim_cpu *cpu; + cpu = STATE_CPU (sd, 0); if (cmd != 0 && (cmd[0] == ' ' || cmd[0] == '-')) { int i; struct hw *hw_dev; + struct sim_info_list *dev_list; + const struct bfd_arch_info *arch; + + arch = STATE_ARCHITECTURE (sd); cmd++; + if (arch->arch == bfd_arch_m68hc11) + dev_list = dev_list_68hc11; + else + dev_list = dev_list_68hc12; + for (i = 0; dev_list[i].name; i++) if (strcmp (cmd, dev_list[i].name) == 0) break; @@ -96,7 +126,6 @@ sim_get_info (SIM_DESC sd, char *cmd) return; } - cpu = STATE_CPU (sd, 0); cpu_info (sd, cpu); interrupts_info (sd, &cpu->cpu_interrupts); } @@ -107,13 +136,28 @@ sim_board_reset (SIM_DESC sd) { struct hw *hw_cpu; sim_cpu *cpu; + const struct bfd_arch_info *arch; + const char *cpu_type; cpu = STATE_CPU (sd, 0); + arch = STATE_ARCHITECTURE (sd); + /* hw_cpu = sim_hw_parse (sd, "/"); */ - hw_cpu = sim_hw_parse (sd, "/m68hc11"); + if (arch->arch == bfd_arch_m68hc11) + { + cpu->cpu_type = CPU_M6811; + cpu_type = "/m68hc11"; + } + else + { + cpu->cpu_type = CPU_M6812; + cpu_type = "/m68hc12"; + } + + hw_cpu = sim_hw_parse (sd, cpu_type); if (hw_cpu == 0) { - sim_io_eprintf (sd, "m68hc11 cpu not found in device tree."); + sim_io_eprintf (sd, "%s cpu not found in device tree.", cpu_type); return; } @@ -122,6 +166,144 @@ sim_board_reset (SIM_DESC sd) cpu_restart (cpu); } +int +sim_hw_configure (SIM_DESC sd) +{ + const struct bfd_arch_info *arch; + struct hw *device_tree; + int m6811_mode; + sim_cpu *cpu; + + arch = STATE_ARCHITECTURE (sd); + if (arch == 0) + return 0; + + cpu = STATE_CPU (sd, 0); + cpu->cpu_configured_arch = arch; + device_tree = sim_hw_parse (sd, "/"); + if (arch->arch == bfd_arch_m68hc11) + { + cpu->cpu_interpretor = cpu_interp_m6811; + if (hw_tree_find_property (device_tree, "/m68hc11/reg") == 0) + { + /* Allocate core managed memory */ + + /* the monitor */ + sim_do_commandf (sd, "memory region 0x%lx@%d,0x%lx", + /* MONITOR_BASE, MONITOR_SIZE */ + 0x8000, M6811_RAM_LEVEL, 0x8000); + sim_do_commandf (sd, "memory region 0x000@%d,0x8000", + M6811_RAM_LEVEL); + sim_hw_parse (sd, "/m68hc11/reg 0x1000 0x03F"); + } + + if (hw_tree_find_property (device_tree, "/m68hc11/m68hc11sio/reg") == 0) + { + sim_hw_parse (sd, "/m68hc11/m68hc11sio/reg 0x2b 0x5"); + sim_hw_parse (sd, "/m68hc11/m68hc11sio/backend stdio"); + sim_hw_parse (sd, "/m68hc11 > cpu-reset reset /m68hc11/m68hc11sio"); + } + if (hw_tree_find_property (device_tree, "/m68hc11/m68hc11tim/reg") == 0) + { + /* M68hc11 Timer configuration. */ + sim_hw_parse (sd, "/m68hc11/m68hc11tim/reg 0x1b 0x5"); + sim_hw_parse (sd, "/m68hc11 > cpu-reset reset /m68hc11/m68hc11tim"); + } + + /* Create the SPI device. */ + if (hw_tree_find_property (device_tree, "/m68hc11/m68hc11spi/reg") == 0) + { + sim_hw_parse (sd, "/m68hc11/m68hc11spi/reg 0x28 0x3"); + sim_hw_parse (sd, "/m68hc11 > cpu-reset reset /m68hc11/m68hc11spi"); + } + if (hw_tree_find_property (device_tree, "/m68hc11/nvram/reg") == 0) + { + /* M68hc11 persistent ram configuration. */ + sim_hw_parse (sd, "/m68hc11/nvram/reg 0x0 256"); + sim_hw_parse (sd, "/m68hc11/nvram/file m68hc11.ram"); + sim_hw_parse (sd, "/m68hc11/nvram/mode save-modified"); + /*sim_hw_parse (sd, "/m68hc11 > cpu-reset reset /m68hc11/pram"); */ + } + if (hw_tree_find_property (device_tree, "/m68hc11/m68hc11eepr/reg") == 0) + { + sim_hw_parse (sd, "/m68hc11/m68hc11eepr/reg 0xb000 512"); + sim_hw_parse (sd, "/m68hc11 > cpu-reset reset /m68hc11/m68hc11eepr"); + } + } + else + { + cpu->cpu_interpretor = cpu_interp_m6812; + if (hw_tree_find_property (device_tree, "/m68hc12/reg") == 0) + { + /* Allocate core external memory. */ + sim_do_commandf (sd, "memory region 0x%lx@%d,0x%lx", + 0x8000, M6811_RAM_LEVEL, 0x8000); + sim_do_commandf (sd, "memory region 0x000@%d,0x8000", + M6811_RAM_LEVEL); + + sim_hw_parse (sd, "/m68hc12/reg 0x0 0x3FF"); + } + + if (!hw_tree_find_property (device_tree, "/m68hc12/m68hc12sio@1/reg")) + { + sim_hw_parse (sd, "/m68hc12/m68hc12sio@1/reg 0xC0 0x8"); + sim_hw_parse (sd, "/m68hc12/m68hc12sio@1/backend stdio"); + sim_hw_parse (sd, "/m68hc12 > cpu-reset reset /m68hc12/m68hc12sio@1"); + } + if (!hw_tree_find_property (device_tree, "/m68hc12/m68hc12sio@2/reg")) + { + sim_hw_parse (sd, "/m68hc12/m68hc12sio@2/reg 0xC8 0x8"); + sim_hw_parse (sd, "/m68hc12/m68hc12sio@2/backend tcp"); + sim_hw_parse (sd, "/m68hc12 > cpu-reset reset /m68hc12/m68hc12sio@2"); + } + if (hw_tree_find_property (device_tree, "/m68hc12/m68hc12tim/reg") == 0) + { + /* M68hc11 Timer configuration. */ + sim_hw_parse (sd, "/m68hc12/m68hc12tim/reg 0x1b 0x5"); + sim_hw_parse (sd, "/m68hc12 > cpu-reset reset /m68hc12/m68hc12tim"); + } + + /* Create the SPI device. */ + if (hw_tree_find_property (device_tree, "/m68hc12/m68hc12spi/reg") == 0) + { + sim_hw_parse (sd, "/m68hc12/m68hc12spi/reg 0x28 0x3"); + sim_hw_parse (sd, "/m68hc12 > cpu-reset reset /m68hc12/m68hc12spi"); + } + if (hw_tree_find_property (device_tree, "/m68hc12/nvram/reg") == 0) + { + /* M68hc11 persistent ram configuration. */ + sim_hw_parse (sd, "/m68hc12/nvram/reg 0x2000 8192"); + sim_hw_parse (sd, "/m68hc12/nvram/file m68hc12.ram"); + sim_hw_parse (sd, "/m68hc12/nvram/mode save-modified"); + } + if (hw_tree_find_property (device_tree, "/m68hc12/m68hc12eepr/reg") == 0) + { + sim_hw_parse (sd, "/m68hc12/m68hc12eepr/reg 0x0800 2048"); + sim_hw_parse (sd, "/m68hc12 > cpu-reset reset /m68hc12/m68hc12eepr"); + } + } + return 0; +} + +static int +sim_prepare_for_program (SIM_DESC sd, struct _bfd* abfd) +{ + sim_cpu *cpu; + + cpu = STATE_CPU (sd, 0); + + sim_hw_configure (sd); + if (abfd != NULL) + { + cpu->cpu_elf_start = bfd_get_start_address (abfd); + } + + /* reset all state information */ + sim_board_reset (sd); + + return SIM_RC_OK; +} + SIM_DESC sim_open (SIM_OPEN_KIND kind, host_callback *callback, struct _bfd *abfd, char **argv) @@ -144,7 +326,10 @@ sim_open (SIM_OPEN_KIND kind, host_callback *callback, cpu->cpu_use_elf_start = 1; if (sim_pre_argv_init (sd, argv[0]) != SIM_RC_OK) - return 0; + { + free_state (sd); + return 0; + } /* getopt will print the error message so we just have to exit if this fails. FIXME: Hmmm... in the case of gdb we need getopt to call @@ -153,72 +338,24 @@ sim_open (SIM_OPEN_KIND kind, host_callback *callback, { /* Uninstall the modules to avoid memory leaks, file descriptor leaks, etc. */ - sim_module_uninstall (sd); + free_state (sd); return 0; } - device_tree = sim_hw_parse (sd, "/"); - if (hw_tree_find_property (device_tree, "/m68hc11/reg") == 0) - { - /* Allocate core managed memory */ - - /* the monitor */ - sim_do_commandf (sd, "memory region 0x%lx@%d,0x%lx", - /* MONITOR_BASE, MONITOR_SIZE */ - 0x8000, M6811_RAM_LEVEL, 0x8000); - sim_do_commandf (sd, "memory region 0x000@%d,0x8000", - M6811_RAM_LEVEL); - sim_hw_parse (sd, "/m68hc11/reg 0x1000 0x03F"); - } - - if (hw_tree_find_property (device_tree, "/m68hc11/m68hc11sio/reg") == 0) - { - sim_hw_parse (sd, "/m68hc11/m68hc11sio/reg 0x2b 0x5"); - sim_hw_parse (sd, "/m68hc11/m68hc11sio/backend stdio"); - sim_hw_parse (sd, "/m68hc11 > cpu-reset reset /m68hc11/m68hc11sio"); - } - if (hw_tree_find_property (device_tree, "/m68hc11/m68hc11tim/reg") == 0) - { - /* M68hc11 Timer configuration. */ - sim_hw_parse (sd, "/m68hc11/m68hc11tim/reg 0x1b 0x5"); - sim_hw_parse (sd, "/m68hc11 > cpu-reset reset /m68hc11/m68hc11tim"); - } - - /* Create the SPI device. */ - if (hw_tree_find_property (device_tree, "/m68hc11/m68hc11spi/reg") == 0) - { - sim_hw_parse (sd, "/m68hc11/m68hc11spi/reg 0x28 0x3"); - sim_hw_parse (sd, "/m68hc11 > cpu-reset reset /m68hc11/m68hc11spi"); - } - if (hw_tree_find_property (device_tree, "/m68hc11/pram/reg") == 0) - { - /* M68hc11 persistent ram configuration. */ - sim_hw_parse (sd, "/m68hc11/nvram/reg 0x0 256"); - sim_hw_parse (sd, "/m68hc11/nvram/file m68hc11.ram"); - sim_hw_parse (sd, "/m68hc11/nvram/mode save-modified"); - /*sim_hw_parse (sd, "/m68hc11 > cpu-reset reset /m68hc11/pram"); */ - } - if (hw_tree_find_property (device_tree, "/m68hc11/m68hc11eepr/reg") == 0) - { - sim_hw_parse (sd, "/m68hc11/m68hc11eepr/reg 0xb000 512"); - /* Connect the CPU reset to all devices. */ - sim_hw_parse (sd, "/m68hc11 > cpu-reset reset /m68hc11/m68hc11eepr"); - } - /* Check for/establish the a reference program image. */ if (sim_analyze_program (sd, (STATE_PROG_ARGV (sd) != NULL ? *STATE_PROG_ARGV (sd) : NULL), abfd) != SIM_RC_OK) { - sim_module_uninstall (sd); + free_state (sd); return 0; } /* Establish any remaining configuration options. */ if (sim_config (sd) != SIM_RC_OK) { - sim_module_uninstall (sd); + free_state (sd); return 0; } @@ -226,16 +363,11 @@ sim_open (SIM_OPEN_KIND kind, host_callback *callback, { /* Uninstall the modules to avoid memory leaks, file descriptor leaks, etc. */ - sim_module_uninstall (sd); + free_state (sd); return 0; } - if (abfd != NULL) - { - cpu->cpu_elf_start = bfd_get_start_address (abfd); - } - - sim_board_reset (sd); + sim_hw_configure (sd); /* Fudge our descriptor. */ return sd; @@ -253,7 +385,7 @@ sim_close (SIM_DESC sd, int quitting) sim_io_shutdown (sd); /* FIXME - free SD */ - + sim_state_free (sd); return; } @@ -302,8 +434,17 @@ sim_trace (SIM_DESC sd) void sim_info (SIM_DESC sd, int verbose) { + const char *cpu_type; + const struct bfd_arch_info *arch; + + arch = STATE_ARCHITECTURE (sd); + if (arch->arch == bfd_arch_m68hc11) + cpu_type = "68HC11"; + else + cpu_type = "68HC12"; + sim_io_eprintf (sd, "Simulator info:\n"); - sim_io_eprintf (sd, " CPU Motorola 68HC11\n"); + sim_io_eprintf (sd, " CPU Motorola %s\n", cpu_type); sim_get_info (sd, 0); sim_module_info (sd, verbose || STATE_VERBOSE_P (sd)); } @@ -312,20 +453,7 @@ SIM_RC sim_create_inferior (SIM_DESC sd, struct _bfd *abfd, char **argv, char **env) { - sim_cpu *cpu; - int i; - - cpu = STATE_CPU (sd, 0); - - if (abfd != NULL) - { - cpu->cpu_elf_start = bfd_get_start_address (abfd); - } - - /* reset all state information */ - sim_board_reset (sd); - - return SIM_RC_OK; + return sim_prepare_for_program (sd, abfd); } @@ -450,7 +578,9 @@ sim_do_command (SIM_DESC sd, char *cmd) { char *mm_cmd = "memory-map"; char *int_cmd = "interrupt"; + sim_cpu *cpu; + cpu = STATE_CPU (sd, 0); /* Commands available from GDB: */ if (sim_args_command (sd, cmd) != SIM_RC_OK) { @@ -466,4 +596,8 @@ sim_do_command (SIM_DESC sd, char *cmd) else sim_io_eprintf (sd, "Unknown command `%s'\n", cmd); } + + /* If the architecture changed, re-configure. */ + if (STATE_ARCHITECTURE (sd) != cpu->cpu_configured_arch) + sim_hw_configure (sd); } diff --git a/sim/m68hc11/m68hc11_sim.c b/sim/m68hc11/m68hc11_sim.c index 169edfa..1beef6d 100644 --- a/sim/m68hc11/m68hc11_sim.c +++ b/sim/m68hc11/m68hc11_sim.c @@ -1,5 +1,5 @@ -/* m6811_cpu.c -- 68HC11 CPU Emulation - Copyright 1999, 2000 Free Software Foundation, Inc. +/* m6811_cpu.c -- 68HC11&68HC12 CPU Emulation + Copyright 1999, 2000, 2001 Free Software Foundation, Inc. Written by Stephane Carrez (stcarrez@worldnet.fr) This file is part of GDB, GAS, and the GNU binutils. @@ -305,6 +305,341 @@ cpu_set_sp (sim_cpu *cpu, uint16 val) cpu_update_frame (cpu, 0); } +uint16 +cpu_get_reg (sim_cpu* cpu, uint8 reg) +{ + switch (reg) + { + case 0: + return cpu_get_x (cpu); + + case 1: + return cpu_get_y (cpu); + + case 2: + return cpu_get_sp (cpu); + + case 3: + return cpu_get_pc (cpu); + + default: + return 0; + } +} + +uint16 +cpu_get_src_reg (sim_cpu* cpu, uint8 reg) +{ + switch (reg) + { + case 0: + return cpu_get_a (cpu); + + case 1: + return cpu_get_b (cpu); + + case 2: + return cpu_get_ccr (cpu); + + case 3: + return cpu_get_tmp3 (cpu); + + case 4: + return cpu_get_d (cpu); + + case 5: + return cpu_get_x (cpu); + + case 6: + return cpu_get_y (cpu); + + case 7: + return cpu_get_sp (cpu); + + default: + return 0; + } +} + +void +cpu_set_dst_reg (sim_cpu* cpu, uint8 reg, uint16 val) +{ + switch (reg) + { + case 0: + cpu_set_a (cpu, val); + break; + + case 1: + cpu_set_b (cpu, val); + break; + + case 2: + cpu_set_ccr (cpu, val); + break; + + case 3: + cpu_set_tmp2 (cpu, val); + break; + + case 4: + cpu_set_d (cpu, val); + break; + + case 5: + cpu_set_x (cpu, val); + break; + + case 6: + cpu_set_y (cpu, val); + break; + + case 7: + cpu_set_sp (cpu, val); + break; + + default: + break; + } +} + +void +cpu_set_reg (sim_cpu* cpu, uint8 reg, uint16 val) +{ + switch (reg) + { + case 0: + cpu_set_x (cpu, val); + break; + + case 1: + cpu_set_y (cpu, val); + break; + + case 2: + cpu_set_sp (cpu, val); + break; + + case 3: + cpu_set_pc (cpu, val); + break; + + default: + break; + } +} + +/* Returns the address of a 68HC12 indexed operand. + Pre and post modifications are handled on the source register. */ +uint16 +cpu_get_indexed_operand_addr (sim_cpu* cpu, int restrict) +{ + uint8 reg; + uint16 sval; + uint16 addr; + uint8 code; + + code = cpu_fetch8 (cpu); + + /* n,r with 5-bit signed constant. */ + if ((code & 0x20) == 0) + { + reg = (code >> 6) & 3; + sval = (code & 0x1f); + if (code & 0x10) + sval |= 0xfff0; + + addr = cpu_get_reg (cpu, reg); + addr += sval; + } + + /* Auto pre/post increment/decrement. */ + else if ((code & 0xc0) != 0xc0) + { + reg = (code >> 6) & 3; + sval = (code & 0x0f); + if (sval & 0x8) + { + sval |= 0xfff0; + } + else + { + sval = sval + 1; + } + addr = cpu_get_reg (cpu, reg); + cpu_set_reg (cpu, reg, addr + sval); + if ((code & 0x10) == 0) + { + addr += sval; + } + } + + /* [n,r] 16-bits offset indexed indirect. */ + else if ((code & 0x07) == 3) + { + if (restrict) + { + return 0; + } + reg = (code >> 3) & 0x03; + addr = cpu_get_reg (cpu, reg); + addr += cpu_fetch16 (cpu); + addr = memory_read16 (cpu, addr); + cpu_add_cycles (cpu, 1); + } + else if ((code & 0x4) == 0) + { + if (restrict) + { + return 0; + } + reg = (code >> 3) & 0x03; + addr = cpu_get_reg (cpu, reg); + if (code & 0x2) + { + sval = cpu_fetch16 (cpu); + cpu_add_cycles (cpu, 1); + } + else + { + sval = cpu_fetch8 (cpu); + if (code & 0x1) + sval |= 0xff00; + cpu_add_cycles (cpu, 1); + } + addr += sval; + } + else + { + reg = (code >> 3) & 0x03; + addr = cpu_get_reg (cpu, reg); + switch (code & 3) + { + case 0: + addr += cpu_get_a (cpu); + break; + case 1: + addr += cpu_get_b (cpu); + break; + case 2: + addr += cpu_get_d (cpu); + break; + case 3: + default: + addr += cpu_get_d (cpu); + addr = memory_read16 (cpu, addr); + cpu_add_cycles (cpu, 1); + break; + } + } + + return addr; +} + +uint8 +cpu_get_indexed_operand8 (sim_cpu* cpu, int restrict) +{ + uint16 addr; + + addr = cpu_get_indexed_operand_addr (cpu, restrict); + return memory_read8 (cpu, addr); +} + +uint16 +cpu_get_indexed_operand16 (sim_cpu* cpu, int restrict) +{ + uint16 addr; + + addr = cpu_get_indexed_operand_addr (cpu, restrict); + return memory_read16 (cpu, addr); +} + +void +cpu_move8 (sim_cpu *cpu, uint8 code) +{ + uint8 src; + uint16 addr; + + switch (code) + { + case 0x0b: + src = cpu_fetch8 (cpu); + addr = cpu_fetch16 (cpu); + break; + + case 0x08: + addr = cpu_get_indexed_operand_addr (cpu, 1); + src = cpu_fetch8 (cpu); + break; + + case 0x0c: + addr = cpu_fetch16 (cpu); + src = memory_read8 (cpu, addr); + addr = cpu_fetch16 (cpu); + break; + + case 0x09: + addr = cpu_get_indexed_operand_addr (cpu, 1); + src = memory_read8 (cpu, cpu_fetch16 (cpu)); + break; + + case 0x0d: + src = cpu_get_indexed_operand8 (cpu, 1); + addr = cpu_fetch16 (cpu); + break; + + case 0x0a: + src = cpu_get_indexed_operand8 (cpu, 1); + addr = cpu_get_indexed_operand_addr (cpu, 1); + break; + + } + memory_write8 (cpu, addr, src); +} + +void +cpu_move16 (sim_cpu *cpu, uint8 code) +{ + uint16 src; + uint16 addr; + + switch (code) + { + case 0x03: + src = cpu_fetch16 (cpu); + addr = cpu_fetch16 (cpu); + break; + + case 0x00: + addr = cpu_get_indexed_operand_addr (cpu, 1); + src = cpu_fetch16 (cpu); + break; + + case 0x04: + addr = cpu_fetch16 (cpu); + src = memory_read16 (cpu, addr); + addr = cpu_fetch16 (cpu); + break; + + case 0x01: + addr = cpu_get_indexed_operand_addr (cpu, 1); + src = memory_read16 (cpu, cpu_fetch16 (cpu)); + break; + + case 0x05: + src = cpu_get_indexed_operand16 (cpu, 1); + addr = cpu_fetch16 (cpu); + break; + + case 0x02: + src = cpu_get_indexed_operand16 (cpu, 1); + addr = cpu_get_indexed_operand_addr (cpu, 1); + break; + + } + memory_write16 (cpu, addr, src); +} + int cpu_initialize (SIM_DESC sd, sim_cpu *cpu) { @@ -346,7 +681,10 @@ cpu_reset (sim_cpu *cpu) /* Initialize the config register. It is only initialized at reset time. */ memset (cpu->ios, 0, sizeof (cpu->ios)); - cpu->ios[M6811_INIT] = 0x1; + if (cpu->cpu_configured_arch->arch == bfd_arch_m68hc11) + cpu->ios[M6811_INIT] = 0x1; + else + cpu->ios[M6811_INIT] = 0; /* Output compare registers set to 0xFFFF. */ cpu->ios[M6811_TOC1_H] = 0xFF; @@ -463,18 +801,109 @@ cpu_fetch_relbranch (sim_cpu *cpu) return addr; } +uint16 +cpu_fetch_relbranch16 (sim_cpu *cpu) +{ + uint16 addr = cpu_fetch16 (cpu); + + addr += cpu->cpu_regs.pc; + return addr; +} /* Push all the CPU registers (when an interruption occurs). */ void cpu_push_all (sim_cpu *cpu) { - cpu_push_uint16 (cpu, cpu->cpu_regs.pc); - cpu_push_uint16 (cpu, cpu->cpu_regs.iy); - cpu_push_uint16 (cpu, cpu->cpu_regs.ix); - cpu_push_uint16 (cpu, cpu->cpu_regs.d); - cpu_push_uint8 (cpu, cpu->cpu_regs.ccr); + if (cpu->cpu_configured_arch->arch == bfd_arch_m68hc11) + { + cpu_m68hc11_push_uint16 (cpu, cpu->cpu_regs.pc); + cpu_m68hc11_push_uint16 (cpu, cpu->cpu_regs.iy); + cpu_m68hc11_push_uint16 (cpu, cpu->cpu_regs.ix); + cpu_m68hc11_push_uint16 (cpu, cpu->cpu_regs.d); + cpu_m68hc11_push_uint8 (cpu, cpu->cpu_regs.ccr); + } + else + { + cpu_m68hc12_push_uint16 (cpu, cpu->cpu_regs.pc); + cpu_m68hc12_push_uint16 (cpu, cpu->cpu_regs.iy); + cpu_m68hc12_push_uint16 (cpu, cpu->cpu_regs.ix); + cpu_m68hc12_push_uint16 (cpu, cpu->cpu_regs.d); + cpu_m68hc12_push_uint8 (cpu, cpu->cpu_regs.ccr); + } } +/* Simulation of the dbcc/ibcc/tbcc 68HC12 conditional branch operations. */ +void +cpu_dbcc (sim_cpu* cpu) +{ + uint8 code; + uint16 addr; + uint16 inc; + uint16 reg; + + code = cpu_fetch8 (cpu); + switch (code & 0xc0) + { + case 0x80: /* ibcc */ + inc = 1; + break; + case 0x40: /* tbcc */ + inc = 0; + break; + case 0: /* dbcc */ + inc = -1; + break; + default: + abort (); + break; + } + + addr = cpu_fetch8 (cpu); + if (code & 0x10) + addr |= 0xff00; + + addr += cpu_get_pc (cpu); + reg = cpu_get_src_reg (cpu, code & 0x07); + reg += inc; + + /* Branch according to register value. */ + if ((reg != 0 && (code & 0x20)) || (reg == 0 && !(code & 0x20))) + { + cpu_set_pc (cpu, addr); + } + cpu_set_dst_reg (cpu, code & 0x07, reg); +} + +void +cpu_exg (sim_cpu* cpu, uint8 code) +{ + uint8 r1, r2; + uint16 src1; + uint16 src2; + + r1 = (code >> 4) & 0x07; + r2 = code & 0x07; + if (code & 0x80) + { + src1 = cpu_get_src_reg (cpu, r1); + src2 = cpu_get_src_reg (cpu, r2); + if (r2 == 1 || r2 == 2) + src2 |= 0xff00; + + cpu_set_dst_reg (cpu, r2, src1); + cpu_set_dst_reg (cpu, r1, src2); + } + else + { + src1 = cpu_get_src_reg (cpu, r1); + + /* Sign extend the 8-bit registers (A, B, CCR). */ + if ((r1 == 0 || r1 == 1 || r1 == 2) && (src1 & 0x80)) + src1 |= 0xff00; + + cpu_set_dst_reg (cpu, r2, src1); + } +} /* Handle special instructions. */ void @@ -486,12 +915,26 @@ cpu_special (sim_cpu *cpu, enum M6811_Special special) { uint8 ccr; - ccr = cpu_pop_uint8 (cpu); + ccr = cpu_m68hc11_pop_uint8 (cpu); cpu_set_ccr (cpu, ccr); - cpu_set_d (cpu, cpu_pop_uint16 (cpu)); - cpu_set_x (cpu, cpu_pop_uint16 (cpu)); - cpu_set_y (cpu, cpu_pop_uint16 (cpu)); - cpu_set_pc (cpu, cpu_pop_uint16 (cpu)); + cpu_set_d (cpu, cpu_m68hc11_pop_uint16 (cpu)); + cpu_set_x (cpu, cpu_m68hc11_pop_uint16 (cpu)); + cpu_set_y (cpu, cpu_m68hc11_pop_uint16 (cpu)); + cpu_set_pc (cpu, cpu_m68hc11_pop_uint16 (cpu)); + cpu_return (cpu); + break; + } + + case M6812_RTI: + { + uint8 ccr; + + ccr = cpu_m68hc12_pop_uint8 (cpu); + cpu_set_ccr (cpu, ccr); + cpu_set_d (cpu, cpu_m68hc12_pop_uint16 (cpu)); + cpu_set_x (cpu, cpu_m68hc12_pop_uint16 (cpu)); + cpu_set_y (cpu, cpu_m68hc12_pop_uint16 (cpu)); + cpu_set_pc (cpu, cpu_m68hc12_pop_uint16 (cpu)); cpu_return (cpu); break; } @@ -542,6 +985,7 @@ cpu_special (sim_cpu *cpu, enum M6811_Special special) break; case M6811_TEST: + case M6812_BGND: { SIM_DESC sd; @@ -558,6 +1002,115 @@ cpu_special (sim_cpu *cpu, enum M6811_Special special) /* else this is a nop but not in test factory mode. */ break; } + + case M6812_IDIVS: + { + int32 src1 = (int16) cpu_get_d (cpu); + int32 src2 = (int16) cpu_get_x (cpu); + + if (src2 == 0) + { + cpu_set_ccr_C (cpu, 1); + } + else + { + cpu_set_d (cpu, src1 % src2); + src1 = src1 / src2; + cpu_set_x (cpu, src1); + cpu_set_ccr_C (cpu, 0); + cpu_set_ccr_Z (cpu, src1 == 0); + cpu_set_ccr_N (cpu, src1 & 0x8000); + cpu_set_ccr_V (cpu, src1 >= 32768 || src1 < -32768); + } + } + break; + + case M6812_EDIV: + { + uint32 src1 = (uint32) cpu_get_x (cpu); + uint32 src2 = (uint32) (cpu_get_y (cpu) << 16) + | (uint32) (cpu_get_d (cpu)); + + if (src1 == 0) + { + cpu_set_ccr_C (cpu, 1); + } + else + { + cpu_set_ccr_C (cpu, 0); + cpu_set_d (cpu, src2 % src1); + src2 = src2 / src1; + cpu_set_y (cpu, src2); + cpu_set_ccr_Z (cpu, src2 == 0); + cpu_set_ccr_N (cpu, (src2 & 0x8000) != 0); + cpu_set_ccr_V (cpu, (src2 & 0xffff0000) != 0); + } + } + break; + + case M6812_EDIVS: + { + int32 src1 = (int16) cpu_get_x (cpu); + int32 src2 = (uint32) (cpu_get_y (cpu) << 16) + | (uint32) (cpu_get_d (cpu)); + + if (src1 == 0) + { + cpu_set_ccr_C (cpu, 1); + } + else + { + cpu_set_ccr_C (cpu, 0); + cpu_set_d (cpu, src2 % src1); + src2 = src2 / src1; + cpu_set_y (cpu, src2); + cpu_set_ccr_Z (cpu, src2 == 0); + cpu_set_ccr_N (cpu, (src2 & 0x8000) != 0); + cpu_set_ccr_V (cpu, src2 > 32767 || src2 < -32768); + } + } + break; + + case M6812_EMULS: + { + int32 src1, src2; + + src1 = (int16) cpu_get_d (cpu); + src2 = (int16) cpu_get_y (cpu); + src1 = src1 * src2; + cpu_set_d (cpu, src1 & 0x0ffff); + cpu_set_y (cpu, src1 >> 16); + cpu_set_ccr_Z (cpu, src1 == 0); + cpu_set_ccr_N (cpu, (src1 & 0x80000000) != 0); + cpu_set_ccr_C (cpu, (src1 & 0x00008000) != 0); + } + break; + + case M6812_EMACS: + { + int32 src1, src2; + uint16 addr; + + addr = cpu_fetch16 (cpu); + src1 = (int16) memory_read16 (cpu, cpu_get_x (cpu)); + src2 = (int16) memory_read16 (cpu, cpu_get_y (cpu)); + src1 = src1 * src2; + src2 = (((uint32) memory_read16 (cpu, addr)) << 16) + | (uint32) memory_read16 (cpu, addr + 2); + + memory_write16 (cpu, addr, (src1 + src2) >> 16); + memory_write16 (cpu, addr + 2, (src1 + src2)); + + + } + break; + + case M6812_ETBL: + default: + sim_engine_halt (CPU_STATE (cpu), cpu, NULL, + cpu_get_pc (cpu), sim_stopped, + SIM_SIGILL); + break; } } @@ -577,7 +1130,7 @@ cpu_single_step (sim_cpu *cpu) } /* printf("PC = 0x%04x\n", cpu_get_pc (cpu));*/ - cpu_interp (cpu); + cpu->cpu_interpretor (cpu); cpu->cpu_absolute_cycle += cpu->cpu_current_cycle; } diff --git a/sim/m68hc11/sim-main.h b/sim/m68hc11/sim-main.h index 6b2575c..a88c800 100644 --- a/sim/m68hc11/sim-main.h +++ b/sim/m68hc11/sim-main.h @@ -1,5 +1,5 @@ -/* sim-main.h -- Simulator for Motorola 68HC11 - Copyright (C) 1999, 2000 Free Software Foundation, Inc. +/* sim-main.h -- Simulator for Motorola 68HC11 & 68HC12 + Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc. Written by Stephane Carrez (stcarrez@worldnet.fr) This file is part of GDB, the GNU debugger. @@ -65,6 +65,11 @@ enum m68hc11_map_level M6811_RAM_LEVEL }; +enum cpu_type +{ + CPU_M6811, + CPU_M6812 +}; #define X_REGNUM 0 #define D_REGNUM 1 @@ -103,23 +108,45 @@ extern void print_io_byte (SIM_DESC sd, const char *name, io_reg_desc *desc, uint8 val, uint16 addr); -/* List of special 68HC11 instructions that are not handled by the +/* List of special 68HC11&68HC12 instructions that are not handled by the 'gencode.c' generator. These complex instructions are implemented by 'cpu_special'. */ enum M6811_Special { + /* 68HC11 instructions. */ + M6811_DAA, + M6811_EMUL_SYSCALL, + M6811_ILLEGAL, M6811_RTI, - M6811_WAI, + M6811_STOP, M6811_SWI, M6811_TEST, - M6811_ILLEGAL, - M6811_EMUL_SYSCALL + M6811_WAI, + + /* 68HC12 instructions. */ + M6812_BGND, + M6812_CALL, + M6812_IDIVS, + M6812_EDIV, + M6812_EDIVS, + M6812_EMACS, + M6812_EMUL, + M6812_EMULS, + M6812_ETBL, + M6812_MEM, + M6812_REV, + M6812_REVW, + M6812_RTC, + M6812_RTI, + M6812_WAV }; #define CPU_POP 1 #define CPU_PUSH 2 -#define MAX_PORTS 0x40 +#define M6811_MAX_PORTS (0x03f+1) +#define M6812_MAX_PORTS (0x3ff+1) +#define MAX_PORTS (M6812_MAX_PORTS) /* Tentative to keep track of the stack frame. The frame is updated each time a call or a return are made. @@ -141,6 +168,10 @@ struct cpu_frame_list struct cpu_frame *frame; }; +struct _sim_cpu; + +typedef void (* cpu_interp) (struct _sim_cpu*); + struct _sim_cpu { /* CPU registers. */ struct m6811_regs cpu_regs; @@ -152,6 +183,12 @@ struct _sim_cpu { struct cpu_frame_list *cpu_current_frame; int cpu_need_update_frame; + /* Pointer to the interpretor routine. */ + cpu_interp cpu_interpretor; + + /* Pointer to the architecture currently configured in the simulator. */ + const struct bfd_arch_info *cpu_configured_arch; + /* CPU absolute cycle time. The cycle time is updated after each instruction, by the number of cycles taken by the instruction. It is cleared only when reset occurs. */ @@ -186,11 +223,14 @@ struct _sim_cpu { /* The mode in which the CPU is configured (MODA and MODB pins). */ unsigned int cpu_mode; + /* The cpu being configured. */ + enum cpu_type cpu_type; + /* Initial value of the CONFIG register. */ uint8 cpu_config; uint8 cpu_use_local_config; - uint8 ios[0x3F]; + uint8 ios[MAX_PORTS]; /* ... base type ... */ sim_cpu_base base; @@ -218,10 +258,18 @@ struct _sim_cpu { #define cpu_get_a(PROC) ((PROC->cpu_regs.d >> 8) & 0x0FF) #define cpu_get_b(PROC) ((PROC->cpu_regs.d) & 0x0FF) +/* 68HC12 specific and Motorola internal registers. */ +#define cpu_get_tmp3(PROC) (0) +#define cpu_get_tmp2(PROC) (0) + #define cpu_set_d(PROC,VAL) (((PROC)->cpu_regs.d) = (VAL)) #define cpu_set_x(PROC,VAL) (((PROC)->cpu_regs.ix) = (VAL)) #define cpu_set_y(PROC,VAL) (((PROC)->cpu_regs.iy) = (VAL)) +/* 68HC12 specific and Motorola internal registers. */ +#define cpu_set_tmp3(PROC,VAL) (0) +#define cpu_set_tmp2(PROC,VAL) (0) + #if 0 /* This is a function in m68hc11_sim.c to keep track of the frame. */ #define cpu_set_sp(PROC,VAL) (((PROC)->cpu_regs.sp) = (VAL)) @@ -377,9 +425,9 @@ cpu_ccr_update_sub16 (sim_cpu *proc, uint16 r, uint16 a, uint16 b) cpu_set_ccr_N (proc, r & 0x8000 ? 1 : 0); } - +/* Push and pop instructions for 68HC11 (next-available stack mode). */ inline void -cpu_push_uint8 (sim_cpu *proc, uint8 val) +cpu_m68hc11_push_uint8 (sim_cpu *proc, uint8 val) { uint16 addr = proc->cpu_regs.sp; @@ -389,7 +437,7 @@ cpu_push_uint8 (sim_cpu *proc, uint8 val) } inline void -cpu_push_uint16 (sim_cpu *proc, uint16 val) +cpu_m68hc11_push_uint16 (sim_cpu *proc, uint16 val) { uint16 addr = proc->cpu_regs.sp - 1; @@ -399,7 +447,7 @@ cpu_push_uint16 (sim_cpu *proc, uint16 val) } inline uint8 -cpu_pop_uint8 (sim_cpu *proc) +cpu_m68hc11_pop_uint8 (sim_cpu *proc) { uint16 addr = proc->cpu_regs.sp; uint8 val; @@ -411,7 +459,7 @@ cpu_pop_uint8 (sim_cpu *proc) } inline uint16 -cpu_pop_uint16 (sim_cpu *proc) +cpu_m68hc11_pop_uint16 (sim_cpu *proc) { uint16 addr = proc->cpu_regs.sp; uint16 val; @@ -422,6 +470,54 @@ cpu_pop_uint16 (sim_cpu *proc) return val; } +/* Push and pop instructions for 68HC12 (last-used stack mode). */ +inline void +cpu_m68hc12_push_uint8 (sim_cpu *proc, uint8 val) +{ + uint16 addr = proc->cpu_regs.sp; + + addr --; + memory_write8 (proc, addr, val); + proc->cpu_regs.sp = addr; + proc->cpu_need_update_frame |= CPU_PUSH; +} + +inline void +cpu_m68hc12_push_uint16 (sim_cpu *proc, uint16 val) +{ + uint16 addr = proc->cpu_regs.sp; + + addr -= 2; + memory_write16 (proc, addr, val); + proc->cpu_regs.sp = addr; + proc->cpu_need_update_frame |= CPU_PUSH; +} + +inline uint8 +cpu_m68hc12_pop_uint8 (sim_cpu *proc) +{ + uint16 addr = proc->cpu_regs.sp; + uint8 val; + + val = memory_read8 (proc, addr); + proc->cpu_regs.sp = addr + 1; + proc->cpu_need_update_frame |= CPU_POP; + return val; +} + +inline uint16 +cpu_m68hc12_pop_uint16 (sim_cpu *proc) +{ + uint16 addr = proc->cpu_regs.sp; + uint16 val; + + val = memory_read16 (proc, addr); + proc->cpu_regs.sp = addr + 2; + proc->cpu_need_update_frame |= CPU_POP; + return val; +} + +/* Fetch a 8/16 bit value and update the PC. */ inline uint8 cpu_fetch8 (sim_cpu *proc) { @@ -445,9 +541,14 @@ cpu_fetch16 (sim_cpu *proc) } extern void cpu_call (sim_cpu* proc, uint16 addr); +extern void cpu_exg (sim_cpu* proc, uint8 code); +extern void cpu_dbcc (sim_cpu* proc); extern void cpu_special (sim_cpu *proc, enum M6811_Special special); +extern void cpu_move8 (sim_cpu *proc, uint8 op); +extern void cpu_move16 (sim_cpu *proc, uint8 op); extern uint16 cpu_fetch_relbranch (sim_cpu *proc); +extern uint16 cpu_fetch_relbranch16 (sim_cpu *proc); extern void cpu_push_all (sim_cpu *proc); extern void cpu_single_step (sim_cpu *proc); @@ -463,7 +564,8 @@ extern int cpu_restart (sim_cpu *cpu); extern void sim_memory_error (sim_cpu *cpu, SIM_SIGNAL excep, uint16 addr, const char *message, ...); extern void emul_os (int op, sim_cpu *cpu); -extern void cpu_interp (sim_cpu *cpu); +extern void cpu_interp_m6811 (sim_cpu *cpu); +extern void cpu_interp_m6812 (sim_cpu *cpu); /* The current state of the processor; registers, memory, etc. */ |