git: 9front

ref: 4ec88571a4d7a4d77043c6d0b9268ea52d8ae788
dir: /sys/src/cmd/plot/libplot/erase.c/

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#include "mplot.h"
void erase(void){
	m_swapbuf();
	m_clrwin(clipminx, clipminy, clipmaxx, clipmaxy, e1->backgr);
}