.ifill push r6
prog_pop:
-.ifill disc r6
+.ifill disc
prog_xch:
.ifill pop r6
.define PBASE, 0x2030
.define PADDR, 0x4
.define PDATA, 0x8
+.org 0
+start:
+ call main
+ call main
+ ret
main:
ldw r3, UART_STATUS(r10)
andx r3, UART_RECV_NEW
brzs+ u_recv_byte; branch if zero
- xor r0, r0, r0
+
ldw r0, UART_RECV(r10)
;recv byte
+ ldis r0, 0x48
+u_test:
+ ldw r9, UART_STATUS(r10)
+ andx r9, UART_TRANS_EMPTY
+ brnz+ u_test ; branch if not zero
+ stb r0, UART_TRANS(r10)
+
;set address of input
- ldil r1, inputdata@lo
+ ldis r1, inputdata@lo
ldih r1, inputdata@hi
+
;set address of program start
- ldil r2, prog_start@lo
- ldih r2, prog_start@hi
+ ldis r2, (prog_start/4)@lo
+ ldih r2, (prog_start/4)@hi
;set address to instruction table
- ldil r3, instrtable@lo
+ ldis r3, instrtable@lo
ldih r3, instrtable@hi
;set address to defer table
- ldil r9, defertable@lo
+ ldis r9, defertable@lo
ldih r9, defertable@hi
- ldil r13, PBASE@lo
+ ldis r13, PBASE@lo
ldih r13, PBASE@hi
+
;set programmer address
stw r2, PADDR(r13)
-
;call jit compiler
call+ jit
call+ prog_start
;send result
-u_send_byte:
+ push r0
ldi r10, UART_BASE@lo
ldih r10, UART_BASE@hi
+
+u_send_byte1:
+ ldw r9, UART_STATUS(r10)
+ andx r9, UART_TRANS_EMPTY
+ brnz+ u_send_byte1 ; branch if not zero
+ ldis r0, 0x50
+ stb r0, UART_TRANS(r10)
+
+u_send_byte:
ldw r9, UART_STATUS(r10)
andx r9, UART_TRANS_EMPTY
brnz+ u_send_byte ; branch if not zero
+ pop r0
stb r0, UART_TRANS(r10)
+
;send result
br+ main
;generate branch
sub r11, r6, r8
- lrs r11, r11, 2
+ ;lrs r11, r11, 2
;set the upper 16 bit 0
andx r11, 0xFFFF
;shift to the position of imm in br
PROGINSTR
;increment address
- addi r2, r2, 52
+ addi r2, r2, 13
br+ vm_loop
PROGINSTR
;increment address
- addi r2, r2, 16
+ addi r2, r2, 4
br+ vm_loop
PROGINSTR
;increment address
- addi r2, r2, 16
+ addi r2, r2, 4
br+ vm_loop
PROGINSTR
;increment address
- addi r2, r2, 8
+ addi r2, r2, 2
br+ vm_loop
PROGINSTR
;increment address
- addi r2, r2, 20
+ addi r2, r2, 5
br+ vm_loop
PROGINSTR
;increment address
- addi r2, r2, 8
+ addi r2, r2, 2
br+ vm_loop
PROGINSTR
;increment address
- addi r2, r2, 12
+ addi r2, r2, 3
;pc+4
addi r1, r1, 4
PROGINSTR
;we add the offset to this instruction
- addi r8, r2, 12
+ addi r8, r2, 3
;we know calculate the jump destination
sub r8, r0, r8
;we shift 2 bits out, because rel. br takes instr.
;count and not address amount ...
- lrs r8, r8, 2
+ ;lrs r8, r8, 2
;set the upper 16 bit 0
andx r8, 0xFFFF
;shift to the position of imm in br
PROGINSTR
;increment address
- addi r2, r2, 16
+ addi r2, r2, 4
br+ vm_loop
;increment defer table address
addi r9, r9, 8
;increment address
- addi r2, r2, 16
+ addi r2, r2, 4
br+ vm_loop
;case P
PROGINSTR
;increment address
- addi r2, r2, 4
+ addi r2, r2, 1
br+ vm_loop
PROGINSTR
;increment address
- addi r2, r2, 16
+ addi r2, r2, 4
br+ vm_loop
PROGINSTR
;increment address
- addi r2, r2, 12
+ addi r2, r2, 3
br+ vm_loop
.data
jumptable:
;0
-.fill 1, vm_eof
-.fill 41, vm_default
+.fill 1, vm_eof/4
+.fill 41, vm_default/4
;42
-.fill 1, vm_mul
+.fill 1, vm_mul/4
;43
-.fill 1, vm_add
+.fill 1, vm_add/4
;44
-.fill 1, vm_default
+.fill 1, vm_default/4
;45
-.fill 1, vm_sub
+.fill 1, vm_sub/4
;46-47
-.fill 2, vm_default
+.fill 2, vm_default/4
;48-57
-.fill 10, vm_consts
+.fill 10, vm_consts/4
;58-59
-.fill 2, vm_default
+.fill 2, vm_default/4
;60
-.fill 1, vm_lessthan
+.fill 1, vm_lessthan/4
;61-67
-.fill 7, vm_default
+.fill 7, vm_default/4
;68
-.fill 1, vm_dup
+.fill 1, vm_dup/4
;69-72
-.fill 4, vm_default
+.fill 4, vm_default/4
;73
-.fill 1, vm_imm
+.fill 1, vm_imm/4
;74
-.fill 1, vm_jmp
+.fill 1, vm_jmp/4
;75-79
-.fill 5, vm_default
+.fill 5, vm_default/4
;80
-.fill 1, vm_pop
+.fill 1, vm_pop/4
;81-87
-.fill 7, vm_default
+.fill 7, vm_default/4
;88
-.fill 1, vm_xch
+.fill 1, vm_xch/4
;89-125
-.fill 37, vm_default
+.fill 37, vm_default/4
;126
-.fill 1, vm_not
+.fill 1, vm_not/4
;127-255
-.fill 129, vm_default
+.fill 129, vm_default/4
;we assume not more than 3 entries
defertable: