diff options
Diffstat (limited to 'libgcc/config/avr/libf7/libf7-asm.sx')
| -rw-r--r-- | libgcc/config/avr/libf7/libf7-asm.sx | 69 |
1 files changed, 60 insertions, 9 deletions
diff --git a/libgcc/config/avr/libf7/libf7-asm.sx b/libgcc/config/avr/libf7/libf7-asm.sx index 8fbd66bd290..5df167fe73c 100644 --- a/libgcc/config/avr/libf7/libf7-asm.sx +++ b/libgcc/config/avr/libf7/libf7-asm.sx @@ -283,8 +283,8 @@ DEFUN copy cp XL, ZL cpc XH, ZH breq 9f - adiw XL, 10 - adiw ZL, 10 + adiw XL, F7_SIZEOF + adiw ZL, F7_SIZEOF set bld ZERO, 1 bld ZERO, 3 ; ZERO = 0b1010 = 10. @@ -312,8 +312,8 @@ DEFUN copy_P st X+, TMP dec ZERO brne .Loop - sbiw X, 10 - sbiw Z, 10 + sbiw X, F7_SIZEOF + sbiw Z, F7_SIZEOF ret ENDF copy_P #endif /* F7MOD_copy_P_ */ @@ -1328,6 +1328,58 @@ ENDF sqrt_approx #undef Carry +#ifdef F7MOD_D_fma_ +_DEFUN __fma + DALIAS fma + LALIAS fmal + +#define n_pushed 4 +#define n_frame (2 * F7_SIZEOF) + + do_prologue_saves n_pushed, n_frame + ;; Y = FramePointer + 1 + adiw Y, 1 + + ;; FP + 1 = (f7_t) arg1 + wmov r16, Y + ;; The double argument arg1 is already in R18[]. + XCALL F7_NAME (set_double_impl) + + ;; The double argument arg2 is in R10[]. Move it to R18[]. + wmov r18, r10 + wmov r20, r12 + wmov r22, r14 + ;; R16, R17 are clobbered. Fetch them from where prologue_saves put them. + ldd r24, Y + n_frame + 3 ; Saved R16 + ldd r25, Y + n_frame + 2 ; Saved R17 + ;; FP + 1 + 10 = (f7_t) arg2 + subi r16, lo8 (-F7_SIZEOF) + sbci r17, hi8 (-F7_SIZEOF) + XCALL F7_NAME (set_double_impl) + + wmov r24, Y ; &arg1 + wmov r22, r16 ; &arg2 + XCALL F7_NAME (Imul) ; arg1 *= arg2 + + ;; The 3rd double argument arg3 was passed on the stack. Move it to R18[], + ;; Don't use f7_set_pdouble() because that function is unused (for now). + .irp n, 0, 1, 2, 3, 4, 5, 6, 7 + ldd 18+\n, Y + n_frame + n_pushed + PC_SIZE + \n + .endr + XCALL F7_NAME (set_double_impl) + + wmov r24, Y ; &arg1 + wmov r22, r16 ; &arg2 + XCALL F7_NAME (Iadd) ; arg1 += arg2 + + wmov r24, Y ; &arg1 + XCALL F7_NAME (get_double) + + do_epilogue_restores n_pushed, n_frame +_ENDF __fma +#endif /* F7MOD_D_fma_ */ + + #ifdef F7MOD_D_fabs_ _DEFUN __fabs DALIAS fabs @@ -1493,7 +1545,7 @@ LABEL call_dx ; WHAT = R13 = 0 wmov r14, Z #define n_pushed 4 -#define n_frame 10 +#define n_frame F7_SIZEOF do_prologue_saves n_pushed, n_frame ;; Y = FramePointer + 1 @@ -1565,7 +1617,7 @@ LABEL call_xdd ret #define n_pushed 4 -#define n_frame 20 +#define n_frame (2 * F7_SIZEOF) call.2: do_prologue_saves n_pushed, n_frame @@ -1576,9 +1628,8 @@ call.2: ;; First double argument is already in R18[]. XCALL F7_NAME (set_double_impl) ;; FP + 11 = (f7_t) arg2 - wmov r16, Y - subi r16, lo8 (-10) - sbci r17, hi8 (-10) + subi r16, lo8 (-F7_SIZEOF) + sbci r17, hi8 (-F7_SIZEOF) ;; Move second double argument to R18[]. wmov r18, r10 wmov r20, r12 |