diff options
Diffstat (limited to 'sim/m32c/mem.c')
| -rw-r--r-- | sim/m32c/mem.c | 38 |
1 files changed, 30 insertions, 8 deletions
diff --git a/sim/m32c/mem.c b/sim/m32c/mem.c index d7623a4..258c295 100644 --- a/sim/m32c/mem.c +++ b/sim/m32c/mem.c @@ -202,6 +202,23 @@ mem_put_byte (int address, unsigned char value) } break; + case 0x3aa: /* uart1tx */ + { + static int pending_exit = 0; + if (value == 0) + { + if (pending_exit) + { + step_result = M32C_MAKE_EXITED(value); + return; + } + pending_exit = 1; + } + else + putchar(value); + } + break; + case 0x400: m32c_syscall (value); break; @@ -232,6 +249,11 @@ mem_put_qi (int address, unsigned char value) void mem_put_hi (int address, unsigned short value) { + if (address == 0x402) + { + printf ("SimTrace: %06lx %04x\n", regs.r_pc, value); + return; + } S ("<="); mem_put_byte (address, value & 0xff); mem_put_byte (address + 1, value >> 8); @@ -288,16 +310,16 @@ mem_get_byte (int address) address &= membus_mask; S ("=>"); m = mem_ptr (address); - if (trace) + switch (address) { - if (tpr) + case 0x3ad: /* uart1c1 */ + E(); + return 2; /* transmitter empty */ + break; + default: + if (trace) printf (" %02x", *m); - else - { - S ("=>"); - printf (" %02x", *m); - E (); - } + break; } E (); return *m; |