diff options
Diffstat (limited to 'sim/m68hc11/sim-main.h')
| -rw-r--r-- | sim/m68hc11/sim-main.h | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/sim/m68hc11/sim-main.h b/sim/m68hc11/sim-main.h index eac6b0e..054933b 100644 --- a/sim/m68hc11/sim-main.h +++ b/sim/m68hc11/sim-main.h @@ -210,6 +210,14 @@ struct _sim_cpu { uint8 ios[MAX_PORTS]; + /* Memory bank parameters which describe how the memory bank window + is mapped in memory and how to convert it in virtual address. */ + uint16 bank_start; + uint16 bank_end; + address_word bank_virtual; + unsigned bank_shift; + + struct hw *hw_cpu; /* ... base type ... */ @@ -237,7 +245,7 @@ struct _sim_cpu { #define cpu_get_sp(PROC) ((PROC)->cpu_regs.sp) #define cpu_get_a(PROC) ((PROC->cpu_regs.d >> 8) & 0x0FF) #define cpu_get_b(PROC) ((PROC->cpu_regs.d) & 0x0FF) -#define cpu_get_page(PROC) (PROC->cpu_regs.page) +#define cpu_get_page(PROC) ((PROC)->cpu_regs.page) /* 68HC12 specific and Motorola internal registers. */ #define cpu_get_tmp3(PROC) (0) @@ -246,7 +254,7 @@ struct _sim_cpu { #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)) -#define cpu_set_page(PROC,VAL) ((PROC->cpu_regs.page) = (VAL)) +#define cpu_set_page(PROC,VAL) (((PROC)->cpu_regs.page) = (VAL)) /* 68HC12 specific and Motorola internal registers. */ #define cpu_set_tmp3(PROC,VAL) (0) @@ -297,9 +305,10 @@ extern void cpu_memory_exception (struct _sim_cpu *proc, inline address_word phys_to_virt (sim_cpu *cpu, address_word addr) { - if (addr >= 0x8000 && addr < 0xc000) - return ((address_word) (addr) - 0x8000) - + (((address_word) cpu->cpu_regs.page) << 14) + 0x01000000; + if (addr >= cpu->bank_start && addr < cpu->bank_end) + return ((address_word) (addr - cpu->bank_start) + + (((address_word) cpu->cpu_regs.page) << cpu->bank_shift) + + cpu->bank_virtual); else return (address_word) (addr); } |