diff options
| -rw-r--r-- | 04b/in04b | 130 |
1 files changed, 37 insertions, 93 deletions
@@ -3,7 +3,6 @@ ; local <name> ; argument <name> ; :<label> -; .<label> (local label) ; statement: ; <declaration> ; if <term> <==/</>/>=/<=/!=/[/]/[=/]=> <term> goto <label> NOTE: this uses signed comparisons @@ -44,30 +43,48 @@ ; <term> < <term> (left shift) ; <term> > <term> (unsigned right shift) +main() -if 0 > -1 goto main +:main +function + puts(.str_hello_world) + putc(10) ; newline + syscall(0x3c, 0) +:str_hello_world +string Hello, world! +byte 0 -syscall(0x3c, 0) +:strlen +function + argument s + local len + local c + local p + len = 0 + :strlen_loop + p = s + len + c = *1p + if c == 0 goto strlen_loop_end + len += 1 + goto strlen_loop + :strlen_loop_end + return len -:main +:putc function - global str - global strp - local offset - strp = &str - *8strp = .str_hw - offset = 2 - offset &= offset - offset %= 2 - *8strp += offset - syscall(1, 1, str, 14) - syscall(0x3c, 42) + argument c + local p + p = &c + syscall(1, 1, p, 1) + return -:str_hw - string Hello, world! - byte 10 - - +:puts +function + argument s + local len + len = strlen(s) + syscall(1, 1, s, len) + return :syscall function @@ -165,76 +182,3 @@ function byte 0x05 return - -global x -global y ;123 -global z -:test -function - local eee - local fff - local ggg - return test2(eee, 0x223, ggg) - -:test2 -function - return -123 - - -:strlen -function - argument s - local len - local c - local p - len = 0 - :strlen_loop - p = s + len - c = *1p - ; if c == 0 goto strlen_loop_end - len += 1 - goto strlen_loop - :strlen_loop_end - return len - -:putc -function - argument c - local p - p = &c - syscall(1, 1, p, 1) - return - -:puts -function - argument s - local len - len = strlen(s) - syscall(1, 1, s, len) - return - -:main2 -function - puts(.str_hello_world) - syscall(0x3c, 0) -:str_hello_world -string Hello, world! -byte 10 -byte 0 - -:f -function - argument x - argument y - local v - local p - v = *4x - p = *8y - ;*4p = v - ;if v == 0 goto something - ;*1p = v + 1 - v = *2p - return v - :something - v = *4p - return v |