ManuelW/grbl-LPC-CoreXY
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shaved ~100 bytes of code space

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Simen Svale Skogsrud 2009-02-08 21:25:36 +01:00
parent 05bacc436e
commit 3e5e866115
1 changed files with 7 additions and 9 deletions
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16
gcode.c
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@ -77,18 +77,16 @@
#define SPINDLE_DIRECTION_CW 0 #define SPINDLE_DIRECTION_CW 0
#define SPINDLE_DIRECTION_CCW 1 #define SPINDLE_DIRECTION_CCW 1
// Using packed bit fields saves a "lot" of invaluable SRAM, but bumps the compiled size of this unit
// by 100 bytes. If we get tight on code space, consider using byte aligned values again.
struct ParserState { struct ParserState {
uint32_t line_number; uint32_t line_number;
uint8_t status_code:5; uint8_t status_code;
uint8_t motion_mode:3; /* {G0, G1, G2, G3, G38.2, G80, G81, G82, G83, G84, G85, G86, G87, G88, G89} */ uint8_t motion_mode; /* {G0, G1, G2, G3, G38.2, G80, G81, G82, G83, G84, G85, G86, G87, G88, G89} */
uint8_t inverse_feed_rate_mode:1; /* G93, G94 */ uint8_t inverse_feed_rate_mode; /* G93, G94 */
uint8_t inches_mode:1; /* 0 = millimeter mode, 1 = inches mode {G20, G21} */ uint8_t inches_mode; /* 0 = millimeter mode, 1 = inches mode {G20, G21} */
uint8_t absolute_mode:1; /* 0 = relative motion, 1 = absolute motion {G90, G91} */ uint8_t absolute_mode; /* 0 = relative motion, 1 = absolute motion {G90, G91} */
uint8_t program_flow:2; uint8_t program_flow;
int spindle_direction:2; int spindle_direction;
double feed_rate; /* Millimeters/second */ double feed_rate; /* Millimeters/second */
double position[3]; /* Where the interpreter considers the tool to be at this point in the code */ double position[3]; /* Where the interpreter considers the tool to be at this point in the code */
uint8_t tool; uint8_t tool;