| .include "t-macros.i" |
| |
| start |
| |
| ;; The d10v implements negated addition for subtraction |
| |
| .macro check_subi s x y r c v |
| ;; clear carry |
| ldi r6,#0x8004 |
| mvtc r6,cr0 |
| ;; subtract |
| ldi r10,#\x |
| SUBI r10,#\y |
| ;; verify result |
| ldi r11, #\r |
| cmpeq r10, r11 |
| brf0t 1f |
| ldi r6, 1 |
| ldi r2, \s |
| trap 15 |
| 1: |
| ;; verify carry |
| mvfc r6, cr0 |
| and3 r6, r6, #1 |
| cmpeqi r6, #\c |
| brf0t 1f |
| ldi r6, 1 |
| ldi r2, \s |
| trap 15 |
| 1: |
| .endm |
| |
| check_subi 1 0000 0x0000 0xfff0 00 ;; 0 - 0x10 |
| check_subi 2 0x0000 0x0001 0xffff 0 0 |
| check_subi 3 0x0001 0x0000 0xfff1 0 0 |
| check_subi 4 0x0001 0x0001 0x0000 1 0 |
| check_subi 5 0x8000 0x0001 0x7fff 1 1 |
| |
| exit0 |
