diff options
Diffstat (limited to 'm.asm')
| -rw-r--r-- | m.asm | 119 |
1 files changed, 119 insertions, 0 deletions
@@ -0,0 +1,119 @@ +bits 64 + +%define SYS_WRITE (1) +%define SYS_EXIT (60) +%define STDOUT (1) +%define SCALE (1024) +%define FOUR (4096) +%define MAX_ITER (32) +%define W (80) +%define H (30) +%define RSPAN (3584) +%define RMIN (2560) +%define ISPAN (2458) +%define IMIN (1229) + +section .data +palette: db ` .:-=+*#%@` +.len equ $ - palette + +section .text +global main + +main: + push rbp + mov rbp, rsp + sub rsp, 96 + mov r12, 0 +row_loop: + mov rax, r12 + imul rax, ISPAN + mov rcx, H + cqo + idiv rcx + sub rax, IMIN + mov r9, rax + mov r13, 0 +col_loop: + mov rax, r13 + imul rax, RSPAN + mov rcx, W + cqo + idiv rcx + sub rax, RMIN + mov r8, rax + mov r14, 0 + mov r15, 0 + mov rbx, 0 +iter_loop: + mov rax, r14 + imul rax, r14 + mov rcx, SCALE + cqo + idiv rcx + mov r10, rax + mov rax, r15 + imul rax, r15 + mov rcx, SCALE + cqo + idiv rcx + mov r11, rax + mov rax, r10 + add rax, r11 + cmp rax, FOUR + jle .if_end_0 + jmp plot +.if_end_0: + mov rax, r14 + imul rax, r15 + imul rax, 2 + mov rcx, SCALE + cqo + idiv rcx + add rax, r9 + mov rsi, rax + mov rax, r10 + sub rax, r11 + add rax, r8 + mov r14, rax + mov r15, rsi + add rbx, 1 + cmp rbx, MAX_ITER + jge .if_end_1 + jmp iter_loop +.if_end_1: +plot: + mov rax, rbx + imul rax, 9 + mov rcx, MAX_ITER + cqo + idiv rcx + mov rsi, palette + add rsi, rax + movzx rdx, byte [rsi] + lea rdi, [rbp - 81] + add rdi, r13 + mov byte [rdi], dl + add r13, 1 + cmp r13, W + jge .if_end_2 + jmp col_loop +.if_end_2: + lea rdi, [rbp - 81] + add rdi, W + mov rax, 10 + mov byte [rdi], al + mov rax, SYS_WRITE + mov rdi, STDOUT + lea rsi, [rbp - 81] + mov rdx, W + add rdx, 1 + syscall + add r12, 1 + cmp r12, H + jge .if_end_3 + jmp row_loop +.if_end_3: + mov rax, SYS_EXIT + mov rdi, 0 + syscall |