diff options
Diffstat (limited to 'cpu')
| -rw-r--r-- | cpu/Makefile | 8 | ||||
| -rw-r--r-- | cpu/ROM_count_seconds.rom (renamed from cpu/prog_rom0.rom) | 0 | ||||
| -rw-r--r-- | cpu/os.asm | 25 | ||||
| -rw-r--r-- | cpu/prog_test1.rom | 43 |
4 files changed, 31 insertions, 45 deletions
diff --git a/cpu/Makefile b/cpu/Makefile index 5efa691..7e92314 100644 --- a/cpu/Makefile +++ b/cpu/Makefile @@ -6,9 +6,13 @@ AUXILLARY=alu.ml SCHED=../sched/sched SIM=../csim/csim MON=../monitor/mon +ASM=../asm/asm -all: _build/cpu_opt.dumb - $(MON) $(SIM) -rom ROM0 prog_test1.rom $< +all: _build/cpu_opt.dumb os.rom + $(MON) $(SIM) -rom ROM0 os.rom $< + +os.rom: os.asm + $(ASM) $< > $@ %.sim: _build/%.dumb $(SIM) -n 12 $< diff --git a/cpu/prog_rom0.rom b/cpu/ROM_count_seconds.rom index 7330dac..7330dac 100644 --- a/cpu/prog_rom0.rom +++ b/cpu/ROM_count_seconds.rom diff --git a/cpu/os.asm b/cpu/os.asm new file mode 100644 index 0000000..5d58ff7 --- /dev/null +++ b/cpu/os.asm @@ -0,0 +1,25 @@ +.text +init: + li B _clock + lw B 0(B) + jz B init + add D D B + push D + li A msgtick + jal ser_out_msg + pop D + j init + +ser_out_msg: + li C _output +ser_out_msg_loop: + lb B 0(A) + jz B ser_out_msg_ret + sb B 0(C) + incri A 1 + j ser_out_msg_loop +ser_out_msg_ret: + jr RA + +msgtick: + ascii "Tick!" diff --git a/cpu/prog_test1.rom b/cpu/prog_test1.rom deleted file mode 100644 index 8156628..0000000 --- a/cpu/prog_test1.rom +++ /dev/null @@ -1,43 +0,0 @@ -56 8 - # init: -00000000 01010011 # lilz B 0 -00000010 01001011 # liu B 64 -00000010 01000001 # lw B 0(B) -00000000 10110011 # lilz E init -00000000 10101011 # liu E init -01000010 10101010 # jer E B Z -00010001 00100000 # add D D B -01111111 11101100 # incri SP -2 -00000111 00110001 # sw D 0(SP) -01001100 10010011 # lilz A msgtick -00000000 10001011 # liu A msgtick -00010000 00010010 # jal ser_out_msg -00000111 00100001 # lw D 0(SP) -01000000 11101100 # incri SP 2 -00100111 11100010 # j init - # ser_out_msg: -01000000 11010011 # lilz C 2 -10000010 11001011 # liu C 65 - # ser_out_msg_loop: -00000100 01001001 # lb B 0(A) -00001100 10110011 # lilz E ser_out_msg_ret -00000000 10101011 # liu E ser_out_msg_ret -01000010 10101010 # jer E B Z -00000110 01011001 # sb B 0(C) -10000000 10001100 # incri A 1 -00101111 11100010 # j ser_out_msg_loop - # ser_out_msg_ret: -00000000 01101010 # jr RA - # msgtick: -00101010 - # msgtick: -10010110 - # msgtick: -11000110 - # msgtick: -11010110 - # msgtick: -10000100 - # msgtick: -00000000 - |