#define PROGINSTR stw r0, PDATA(r13)
+#include "dt_inc.s"
.data
.org 0x10
inputdata:
.ifill push r6
.text
- .define UART_BASE, 0x2000
- .define UART_STATUS, 0x0
- .define UART_RECV, 0xc
- .define UART_TRANS, 0x8
-
- .define UART_TRANS_EMPTY, 0x1
- .define UART_RECV_NEW, 0x2
-
- .define PBASE, 0x2030
- .define PADDR, 0x4
- .define PDATA, 0x8
.org 0
start:
- call main
- call main
+ call+ main
+ call+ main
ret
main:
- ldi r10, UART_BASE@lo
- ldih r10, UART_BASE@hi
-;recv byte
-u_recv_byte:
- ldw r3, UART_STATUS(r10)
- andx r3, UART_RECV_NEW
- brzs+ u_recv_byte; branch if zero
-
- 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)
+ call+ u_init
+ call+ u_recv_byte
+ ldis r1, 0x48
+ call+ u_send_byte
;set address of input
ldis r1, inputdata@lo
ldih r1, inputdata@hi
-
;set address of program start
ldis r2, (prog_start/4)@lo
ldih r2, (prog_start/4)@hi
ldis r13, PBASE@lo
ldih r13, PBASE@hi
-
;set programmer address
stw r2, PADDR(r13)
;call jit'ed prog
call+ prog_start
-;send result
- 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
+ call+ u_init
+
+ mov r1, r0
+ call+ u_send_byte
br+ main
.data
-; TODO
-.org 0x300
+.org 0xA00
int2hex:
;3210
.fill 0x33323130
;fedc
.fill 0x66656463
.text
-; TODO
-.org 0x300
+.org 0x400
.define UART_BASE, 0x2000
.define UART_STATUS, 0x0
.define UART_RECV, 0xc
.define UART_TRANS_EMPTY, 0x1
.define UART_RECV_NEW, 0x2
+ .define PBASE, 0x2030
+ .define PADDR, 0x4
+ .define PDATA, 0x8
+
.define SSEG_BASE, 0x2010
.define INT_BASE, 0x2020
.define INT_UART_REC_BIT, 0x02
u_recv_byte:
-#ifndef DTSIM
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)
-#else
- ldis r0, 0x41 ; 'A'
-#endif
ret
u_send_byte:
-#ifndef DTSIM
ldw r9, UART_STATUS(r10)
andx r9, UART_TRANS_EMPTY
brnz+ u_send_byte ; branch if not zero
stb r1, UART_TRANS(r10)
-#endif
ret
u_send_uint:
-#ifndef DTSIM
addi r8, r1, 0
;usb_sendbuffersafe ("0x", 2);
xor r1, r1, r1
lls r8, r8, 4
addi r7, r7, 1
br u_send_uint_loop
-#else
- ret
-#endif
u_send_string:
-#ifndef DTSIM
; r1 = addr
; r2 = len
addi r3, r1, 0
addis r2, r2, 0-1
addi r3, r3, 1
br u_send_string_int
-#else
- ret
-#endif
u_send_newline:
-#ifndef DTSIM
xor r1, r1, r1
ldi r1, 0x0a
call u_send_byte
ldi r1, 0x0d
call u_send_byte
-#endif
ret
u_init:
-#ifndef DTSIM
xor r10, r10, r10
ldi r10, UART_BASE@lo
ldih r10, UART_BASE@hi
-#endif
ret
sseg_displ:
-#ifndef DTSIM
ldi r2, SSEG_BASE
stw r1, 0(r2)
-#endif
ret