.data
str:
- .fill 0x41424344
- .fill 0x0a0d0000
+ ; "zlol"
+ .fill 0x5a4c4f4c
+ .fill 0x00000a0d
+
+int2hex:
+ ;3210
+ .fill 0x33323130
+ ;7654
+ .fill 0x37363534
+ ;ba98
+ .fill 0x62613938
+ ;fedc
+ .fill 0x66656463
.text
.define UART_BASE, 0x2000
.define UART_STATUS, 0x0
br+ main
ret
main:
+ xor r10, r10, r10
+ xor r7, r7, r7
ldi r10, UART_BASE@lo
ldih r10, UART_BASE@hi
ldw r5, UART_STATUS(r10)
xor r1, r1, r1
xor r2, r2, r2
xor r3, r3, r3
- ; ldi r1, str
- ; ldi r1, 0x58
- ; stb r1, str(r3)
- ldw r1, str(r3)
+ ldi r1, str
ldi r2, 6
- ;call send_string
- call send_byte
+ call send_string
+ xor r1, r1, r1
+ xor r2, r2, r2
+ ldi r1, 0x12bd
+ ldih r1, 0x1337
+ call debug_uint
+ ldi r1, 0x1337
+ ldih r1, 0x12bd
+ call debug_uint
main2:
ldw r5, UART_STATUS(r10)
andx r5, UART_RECV_NEW
brzs+ main2 ; no new data?
- ldw r7, UART_RECV(r10) ; load data
+ ldb r7, UART_RECV(r10) ; load data
uartnrdy:
ldw r5, 0(r0)
andx r5, UART_TRANS_EMPTY
reteq-
ldb r1, 0(r3)
call send_byte
- addi r2, r2, 0-1
+ addis r2, r2, 0-1
addi r3, r3, 1
br send_string_int
ldw r9, UART_STATUS(r10)
andx r9, UART_TRANS_EMPTY
brnz+ send_byte ; branch if not zero
- stw r1, UART_TRANS(r10)
+ stb r1, UART_TRANS(r10)
ret
+
+debug_uint:
+ addi r8, r1, 0
+ ;usb_sendbuffersafe ("0x", 2);
+ xor r1, r1, r1
+ ldi r1, 0x30
+ call send_byte
+ xor r1, r1, r1
+ ldi r1, 0x78
+ call send_byte
+ ;j = 0
+ xor r7, r7, r7
+ xor r6, r6, r6
+ ldi r6, int2hex@lo
+ ldih r6, int2hex@hi
+debug_unit_loop:
+ ;for (j = 0; j < 8; ++j) {
+ cmpi r7, 8
+ reteq
+ ;usb_sendbuffersafe (&int2hex[(i >> 28) & 0xf], 1);
+ lrs r1, r8, 28
+ andx r1, 0xf
+ add r9, r6, r1
+ ldb r1, 0(r9)
+ call send_byte
+ ;i <<= 4;
+ lls r8, r8, 4
+ addi r7, r7, 1
+ br debug_unit_loop