diff options
Diffstat (limited to 'sim/testsuite/d10v-elf/t-subi.s')
| -rw-r--r-- | sim/testsuite/d10v-elf/t-subi.s | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/sim/testsuite/d10v-elf/t-subi.s b/sim/testsuite/d10v-elf/t-subi.s new file mode 100644 index 0000000..81faad5 --- /dev/null +++ b/sim/testsuite/d10v-elf/t-subi.s @@ -0,0 +1,39 @@ +.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 |