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Erick
2022-02-13 18:10:33 +01:00
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@@ -12,7 +12,7 @@ Instructions are 16 bits wide and have 4-bit opcodes. The instruction set define
### Hardware ### Hardware
TyVM is a very barebone VM that has: TyVM is a very barebone VM that has:
- 128kb memory - 128kb of memory
- 16 opcodes - 16 opcodes
- 10 registers - 10 registers
- 3 condition flags - 3 condition flags
@@ -71,7 +71,7 @@ enum { // [name, 8-bit value]
- [10] Load instruction from memory at program counter [RG_PC] address; - [10] Load instruction from memory at program counter [RG_PC] address;
- [20] Increment RG_PC; - [20] Increment RG_PC;
- [30] Read opcode for next instruction; - [30] Read opcode for next instruction;
- [40] Perform instruction read in 40; - [40] Perform instruction read in 30;
- [50] Goto 10; - [50] Goto 10;
### Build ### Build
@@ -97,9 +97,9 @@ make
Below is a hello-world program for `TyVM`, the assembled program can be found in `asm/` directory Below is a hello-world program for `TyVM`, the assembled program can be found in `asm/` directory
```shell ```shell
.ORIG x3000 .ORIG x3000
LEA R0, HENLO_WORLD LEA R0, HELLO_WORLD
PUTS PUTS
HALT HALT
HELLO_STR .STRINGZ "Henlo World!" HELLO_STR .STRINGZ "Hello World!"
.END .END
``` ```